US5834582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Degradable polymer composition
Assignee: NatureWorks LLC
•
Filing: 1996-02-20
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Granted: 1998-11-10
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Expires: 2016-02-20
Abstract
Abstract Disclosed are degradable materials which-include a nontoxic hydrolytically degradable polymer and nontoxic modifier, wherein the modifier is compatible with the polymer and the modifier is nonvolatile and nonfugitive. Also disclosed are processes for forming the various degradable materials, which include films, molded products, laminates, foams, powders, nonwovens, adhesives and coatings. The disclosed materials and processes are particularly useful for the production of commercial and consumer products in high volumes which are suitable for recycling after use or which are discarded into the environment in large volumes.
Inventors
- 👤 Richard G. Sinclair
- 👤 Edward S. Lipinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:25
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/53; A; A61; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/26; A61L15/42; A61L15/62; C; C08; C08G; C08G63/00; C08G63/02; C08G63/06; C08G63/08; C08J; C08J5/00; C08J5/18; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08L; C08L101/00; C08L53/00; C08L57/00; C08L67/00; C08L67/04; C09; C09D; C09D167/00; C09D167/04; C09J; C09J167/00; C09J167/04; B; B01; B01J; B01J2219/00; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1942; C08J2367/00; C08J2367/04; C08L2666/00; C08L2666/28
Claims Analysis
Total Claims: 105
Claim 1
Independent Claim
157 words
A degradable molded article comprising: a) a nontoxic hydrolytically degradable polymer, comprising repeating monomer or comonomer units selected from the group consisting of: ##STR6## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; c) wherein said molded article has a tensile strength of less than about 20,000 psi; and d) wherein said polymer has a weight average molecular weight from about 100,000 to about 500,000.
Claim 2
Dependent Claim
157 words
A degradable molded article comprising: a) a nontoxic hydrolytically degradable polymer, comprising repeating monomer or comonomer units selected from the group consisting of: ##STR6## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; c) wherein said molded article has a tensile strength of less than about 20,000 psi; and d) wherein said polymer has a weight average molecular weight from about 100,000 to about 500,000.
Claim 3
Dependent Claim
21 words
The molded article of claim 1, wherein said molded article is selected from the group consisting of spoons, forks and knives.
Claim 4
Dependent Claim
61 words
The molded article of claim 1, wherein said repeating monomer or comonomer units comprise repeating monomer or comonomer units derived from monomers selected from the group consisting of alpha-hydroxycarboxylic acids, beta-hydroxycarboxylic acids, gamma-hydroxycarboxylic acids, delta-hydroxycarboxylic acids, epsilon-hydroxycarboxylic acids, beta-lactones, gamma-lactones, delta-lactones, epsilon-lactones, beta-lactams, gamma-lactams, delta-lactams, epsilon-lactams, cyclic diesters of alpha-hydroxycarboxylic acids, dioxanones, substituted variations of the foregoing compounds, and combinations thereof.
Claim 5
Dependent Claim
36 words
The molded article of claim 1, wherein said polymer is produced by polymerization of monomers, at least 50% by weight of which are monomers selected from the group consisting of lactic acid, lactide, and combinations thereof.
Claim 6
Dependent Claim
36 words
The molded article of claim 1, wherein said lactide monomers comprise a preponderance of optically active lactide and a lesser amount of optically inactive lactide selected from the group consisting of racemic L,D-lactide and meso L,D-lactide.
Claim 7
Dependent Claim
20 words
The molded article of claim 1, wherein said modifier is thermally and chemically stable at temperatures below about 130° C.
Claim 8
Dependent Claim
91 words
The molded article of claim 1, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, ε-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, ketones, amides, nitriles, and combinations of the foregoing.
Claim 9
Dependent Claim
70 words
The molded article of claim 1, wherein said modifier comprises modifier selected from the group consisting of adipic acid derivatives, azelaic acid derivatives, cyclic esters of oligomers of lactic acid, esters of oligomers of lactic acid, citric acid derivatives, polyesters of adipic acid, polyesters of azelaic acid, polyesters of sebacic acid, sebacic acid derivatives, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, and combinations thereof.
Claim 10
Dependent Claim
159 words
The molded article of claim 1, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, bis(2-ethylhexyl)adipate, diisodecyl adipate, bis (2-butoxyethyl) adipate, bis (2-ethylhexyl) azelate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, acetylated lactoyllactate ethyl ester, tri-n-butyl citrate, tri-n-butyl acetylcitrate, diethylene glycol dibenzoate, dipropylene glycol dibenzoate, epoxidized soy oil, 2-ethylhexyl epoxy tallate, diethylene glycol dinonanoate, triethylene glycol di(2-ethylbutyrate), pentaerythritol esters, alkoxy sucrose and glucose, acylated sucrose and glucose, alkylated and acylated glycols, starch esters, N-acylated amino acid esters, amide derivatives and oligomers of N-acylated amino acid esters, polyethylene glycol ethers, sulfonamides and derivatives, tri(2-ethylhexyl)phosphate, dimethyl phthalate, diethyl phthalate, butyl 2-ethylhexyl phthalate, bis (2-ethylhexyl) phthalate, dicyclohexyl phthalate, diphenyl phthalate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, sebacic acid polyester with molecular weight from about 232 to about 7500, di-n-butyl sebacate, and bis(2-ethylhexyl)sebacate, and combinations thereof.
Claim 11
Dependent Claim
75 words
The molded article of claim 1, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, epsilon-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, and combinations of the foregoing.
Claim 12
Dependent Claim
60 words
The molded article of claim 1, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, tri-n-butyl acetylcitrate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, and combinations thereof.
Claim 13
Dependent Claim
52 words
The molded article of claim 1, wherein said modifier comprises modifiers selected from the group consisting of lactic acid, lactide, oligomers of lactic acid, oligomers of lactide and mixtures thereof, wherein said oligomers of lactic acid and oligomers of lactide are defined by the formula: ##STR7## where m is an integer: 2<m<75.
Claim 14
Dependent Claim
42 words
The molded article of claim 1, wherein said modifier comprises modifiers selected from the group consisting of acetyl tributyl citrate, lactide, glycolide, lactic acid esters, dimethyl adipate, diethyl adipate, caprolactone, acetyl triethyl citrate, bis 2-ethyl hexyl sebacate, and bis 2-ethyl hexyl adipate.
Claim 15
Dependent Claim
143 words
A laminated composite material comprising a resin comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR8## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said resin has a tensile strength of less than about 20,000 psi.
Claim 16
Dependent Claim
143 words
A laminated composite material comprising a resin comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR8## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said resin has a tensile strength of less than about 20,000 psi.
Claim 17
Dependent Claim
14 words
The laminated composite material of claim 14, wherein said resin forms a tie layer.
Claim 18
Dependent Claim
15 words
The laminated composite material of claim 14, wherein said resin forms an outer protective coating.
Claim 19
Dependent Claim
22 words
The laminated composite material of claim 14, wherein said polymer has a weight average molecular weight from about 100,000 to about 500,000.
Claim 20
Dependent Claim
62 words
The laminated composite material of claim 14, wherein said repeating monomer or comonomer units comprise repeating monomer or comonomer units derived from monomers selected from the group consisting of alpha-hydroxycarboxylic acids, beta-hydroxycarboxylic acids, gamma-hydroxycarboxylic acids, delta-hydroxycarboxylic acids, epsilon-hydroxycarboxylic acids, beta-lactones, gamma-lactones, delta-lactones, epsilon-lactones, beta-lactams, gamma-lactams, delta-lactams, epsilon-lactams, cyclic diesters of alpha-hydroxycarboxylic acids, dioxanones, substituted variations of the foregoing compounds, and combinations thereof.
Claim 21
Dependent Claim
37 words
The laminated composite material of claim 14, wherein said polymer is produced by polymerization of monomers, at least 50% by weight of which are monomers selected from the group consisting of lactic acid, lactide, and combinations thereof.
Claim 22
Dependent Claim
37 words
The laminated composite material of claim 14, wherein said lactide monomers comprise a preponderance of optically active lactide and a lesser amount of optically inactive lactide selected from the group consisting of racemic L,D-lactide and meso L,D-lactide.
Claim 23
Dependent Claim
21 words
The laminated composite material of claim 14, wherein said modifier is thermally and chemically stable at temperatures below about 130° C.
Claim 24
Dependent Claim
92 words
The laminated composite material of claim 14, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, e-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, ketones, amides, nitriles, and combinations of the foregoing.
Claim 25
Dependent Claim
70 words
The laminated composite material of claim 14, wherein said modifier comprises modifier selected from the group consisting of adipic acid derivatives, azelaic acid derivatives, cyclic esters, oligomers of lactic acid, esters of oligomers of lactic acid, citric acid derivatives, polyesters of adipic acid, polyesters of azelaic acid, polyesters of sebacic acid, sebacic acid derivatives, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, and combinations thereof.
Claim 26
Dependent Claim
157 words
The laminated composite material of claim 14, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, bis(2-ethylhexyl) adipate, diisodecyl adipate, bis(2-butoxyethyl) adipate, bis(2-ethylhexyl)azelate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, acetylated lactoyllactate ethyl ester, tri-n-butyl citrate, tri-n-butyl acetylcitrate, diethylene glycol dibenzoate, dipropylene glycol dibenzoate, epoxidized soy oil, 2-ethylhexyl epoxy tallate, diethylene glycol dinonanoate, triethylene glycol di(2-ethylbutyrate), pentaerythritol esters, alkoxy sucrose and glucose, acylated sucrose and glucose, alkylated and acylated glycols, starch esters, N-acylated amino acid esters, amide derivatives and oligomers of N-acylated amino acid esters, polyethylene glycol ethers, sulfonamides and derivatives, tri(2-ethylhexyl)phosphate, dimethyl phthalate, diethyl phthalate, butyl 2-ethylhexyl phthalate, bis(2-ethylhexyl) phthalate, dicyclohexyl phthalate, diphenyl phthalate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, sebacic acid polyester with molecular weight from about 232 to about 7500, di-n-butyl sebacate, and bis(2-ethylhexyl)sebacate, and combinations thereof.
Claim 27
Dependent Claim
76 words
The laminated composite material of claim 14, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, epsilon-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, and combinations of the foregoing.
Claim 28
Dependent Claim
61 words
The laminated composite material of claim 14, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, tri-n-butyl acetylcitrate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, and combinations thereof.
Claim 29
Dependent Claim
53 words
The laminated composite material of claim 14, wherein said modifier comprises modifiers selected from the group consisting of lactic acid, lactide, oligomers of lactic acid, oligomers of lactide and mixtures thereof, wherein said oligomers of lactic acid and oligomers of lactide are defined by the formula: ##STR9## where m is an integer: 2<m<75.
Claim 30
Dependent Claim
43 words
The laminated composite material of claim 14, wherein said modifier comprises modifiers selected from the group consisting of acetyl tributyl citrate, lactide, glycolide, lactic acid esters, dimethyl adipate, diethyl adipate, caprolactone, acetyl triethyl citrate, bis 2-ethyl hexyl sebacate, and bis 2-ethyl hexyl adipate.
Claim 31
Dependent Claim
139 words
A coextrudate material comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR10## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said polymer has a tensile strength of less than about 20,000 psi.
Claim 32
Dependent Claim
139 words
A coextrudate material comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR10## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said polymer has a tensile strength of less than about 20,000 psi.
Claim 33
Dependent Claim
21 words
The coextrudate material of claim 29, wherein said polymer has a weight average molecular weight from about 100,000 to about 500,000.
Claim 34
Dependent Claim
61 words
The coextrudate material of claim 29, wherein said repeating monomer or comonomer units comprise repeating monomer or comonomer units derived from monomers selected from the group consisting of alpha-hydroxycarboxylic acids, beta-hydroxycarboxylic acids, gamma-hydroxycarboxylic acids, delta-hydroxycarboxylic acids, epsilon-hydroxycarboxylic acids, beta-lactones, gamma-lactones, delta-lactones, epsilon-lactones, beta-lactams, gamma-lactams, delta-lactams, epsilon-lactams, cyclic diesters of alpha-hydroxycarboxylic acids, dioxanones, substituted variations of the foregoing compounds, and combinations thereof.
Claim 35
Dependent Claim
36 words
The coextrudate material of claim 28, wherein said polymer is produced by polymerization of monomers, at least 50% by weight of which are monomers selected from the group consisting of lactic acid, lactide, and combinations thereof.
Claim 36
Dependent Claim
36 words
The coextrudate material of claim 29, wherein said lactide monomers comprise a preponderance of optically active lactide and a lesser amount of optically inactive lactide selected from the group consisting of racemic L,D-lactide and meso L,D-lactide.
Claim 37
Dependent Claim
20 words
The coextrudate material of claim 29, wherein said modifier is thermally and chemically stable at temperatures below about 130° C.
Claim 38
Dependent Claim
91 words
The coextrudate material of claim 29, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, ε-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, ketones, amides, nitriles, and combinations of the foregoing.
Claim 39
Dependent Claim
70 words
The coextrudate material of claim 25, wherein said modifier comprises modifier selected from the group consisting of adipic acid derivatives, azelaic acid derivatives, cyclic esters of oligomers of lactic acid, esters of oligomers of lactic acid, citric acid derivatives, polyesters of adipic acid, polyesters of azelaic acid, polyesters of sebacic acid, sebacic acid derivatives, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, and combinations thereof.
Claim 40
Dependent Claim
158 words
The coextrudate material of claim 29, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, bis(2-ethylhexyl)adipate, diisodecyl adipate, bis (2-butoxyethyl) adipate, bis (2-ethylhexyl) azelate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, acetylated lactoyllactate ethyl ester, tri-n-butyl citrate, tri-n-butyl acetylcitrate, diethylene glycol dibenzoate, dipropylene glycol dibenzoate, epoxidized soy oil, 2-ethylhexyl epoxy tallate, diethylene glycol dinonanoate, triethylene glycol di(2-ethylbutyrate), pentaerythritol esters, alkoxy sucrose and glucose, acylated sucrose and glucose, alkylated and acylated glycols, starch esters, N-acylated amino acid esters, amide derivatives and oligomers of N-acylated amino acid esters, polyethylene glycol ethers, sulfonamides and derivatives, tri(2-ethylhexyl)phosphate, dimethyl phthalate, diethyl phthalate, butyl 2-ethylhexyl phthalate, bis (2-ethylhexyl)phthalate, dicyclohexyl phthalate, diphenyl phthalate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, sebacic acid polyester with molecular weight from about 232 to about 7500, di-n-butyl sebacate, and bis(2-ethylhexyl)sebacate, and combinations thereof.
Claim 41
Dependent Claim
75 words
The coextrudate material of claim 29, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, epsilon-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, and combinations of the foregoing.
Claim 42
Dependent Claim
60 words
The coextrudate material of claim 29, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, tri-n-butyl acetylcitrate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, and combinations thereof.
Claim 43
Dependent Claim
52 words
The coextrudate material of claim 29, wherein said modifier comprises modifiers selected from the group consisting of lactic acid, lactide, oligomers of lactic acid, oligomers of lactide and mixtures thereof, wherein said oligomers of lactic acid and oligomers of lactide are defined by the formula: ##STR11## where m is an integer: 2<m<75.
Claim 44
Dependent Claim
42 words
The coextrudate material of claim 29, wherein said modifier comprises modifiers selected from the group consisting of acetyl tributyl citrate, lactide, glycolide, lactic acid esters, dimethyl adipate, diethyl adipate, caprolactone, acetyl triethyl citrate, bis 2-ethyl hexyl sebacate, and bis 2-ethyl hexyl adipate.
Claim 45
Dependent Claim
143 words
A foam material comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR12## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said foam material has a weight average molecular weight of between about 50,000 and about 500,000.
Claim 46
Dependent Claim
143 words
A foam material comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR12## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said foam material has a weight average molecular weight of between about 50,000 and about 500,000.
Claim 47
Dependent Claim
23 words
The foam material of claim 42, wherein said foam material has a T g of between about 100° C. and about 105° C.
Claim 48
Dependent Claim
14 words
The foam material of claim 42, wherein said polymer is semi-crystalline and not transparent.
Claim 49
Dependent Claim
61 words
The foam material of claim 42, wherein said repeating monomer or comonomer units comprise repeating monomer or comonomer units derived from monomers selected from the group consisting of alpha-hydroxycarboxylic acids, beta-hydroxycarboxylic acids, gamma-hydroxycarboxylic acids, delta-hydroxycarboxylic acids, epsilon-hydroxycarboxylic acids, beta-lactones, gamma-lactones, delta-lactones, epsilon-lactones, beta-lactams, gamma-lactams, delta-lactams, epsilon-lactams, cyclic diesters of alpha-hydroxycarboxylic acids, dioxanones, substituted variations of the foregoing compounds, and combinations thereof.
Claim 50
Dependent Claim
36 words
The foam material of claim 42, wherein said polymer is produced by polymerization of monomers, at least 50% by weight of which are monomers selected from the group consisting of lactic acid, lactide, and combinations thereof.
Claim 51
Dependent Claim
36 words
The foam material of claim 42, wherein said lactide monomers comprise a preponderance of optically active lactide and a lesser amount of optically inactive lactide selected from the group consisting of racemic L,D-lactide and meso L,D-lactide.
Claim 52
Dependent Claim
20 words
The foam material of claim 42, wherein said modifier is thermally and chemically stable at temperatures below about 130° C.
Claim 53
Dependent Claim
91 words
The foam material of claim 42, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, e-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, ketones, amides, nitrites, and combinations of the foregoing.
Claim 54
Dependent Claim
70 words
The foam material of claim 42, wherein said modifier comprises modifier selected from the group consisting of adipic acid derivatives, azelaic acid derivatives, cyclic esters of oligomers of lactic acid, esters of oligomers of lactic acid, citric acid derivatives, polyesters of adipic acid, polyesters of azelaic acid, polyesters of sebacic acid, sebacic acid derivatives, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, and combinations thereof.
Claim 55
Dependent Claim
155 words
The foam material of claim 42, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, bis(2-ethylhexyl)adipate, diisodecyl adipate, bis (2-butoxyethyl) adipate; bis (2-ethylhexyl) azelate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, acetylated lactoyllactate ethyl ester, tri-n-butyl citrate, tri-n-butyl acetylcitrate, diethylene glycol dibenzoate, dipropylene glycol dibenzoate, epoxidized soy oil, 2-ethylhexyl epoxy tallate, diethylene glycol dinonanoate, triethylene glycol di(2-ethylbutyrate), pentaerythritol esters, alkoxy sucrose and glucose, acylated sucrose and glucose, alkylated and acylated glycols, starch esters, N-acylated amino acid esters, amide derivatives and oligomers of N-acylated amino acid esters, polyethylene glycol ethers, sulfonamides and derivatives, tri(2-ethylhexyl)phosphate, dimethyl phthalate, diethyl phthalate, butyl 2-ethylhexyl phthalate, bis(2-ethylhexyl)phthalate, dicyclohexylphthalate, diphenyl phthalate, adipic acid polyester with molecular weight from about 190 to about 6000,.azelaic acid polyester with molecular weight from about 232 to about 7500, sebacic acid polyester with molecular weight from about 232 to about 7500, di-n-butyl sebacate, and bis(2-ethylhexyl)sebacate, and combinations thereof.
Claim 56
Dependent Claim
75 words
The foam material of claim 42, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, epsilon-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, and combinations of the foregoing.
Claim 57
Dependent Claim
60 words
The foam material of claim 42, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, tri-n-butyl acetylcitrate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, and combinations thereof.
Claim 58
Dependent Claim
52 words
The foam material of claim 42, wherein said modifier comprises modifiers selected from the group consisting of lactic acid, lactide, oligomers of lactic acid, oligomers of lactide and mixtures thereof, wherein said oligomers of lactic acid and oligomers of lactide are defined by the formula: ##STR13## where m is an integer: 2<m<75.
Claim 59
Dependent Claim
42 words
The foam material of claim 42, wherein said modifier comprises modifiers selected from the group consisting of acetyl tributyl citrate, lactide, glycolide, lactic acid esters, dimethyl adipate, diethyl adipate, caprolactone, acetyl triethyl citrate, bis 2-ethyl hexyl sebacate, and bis 2-ethyl hexyl adipate.
Claim 60
Dependent Claim
143 words
An adhesive material comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR14## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said adhesive material has a weight average molecular weight of between about 5,000 and about 200,000.
Claim 61
Dependent Claim
143 words
An adhesive material comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR14## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said adhesive material has a weight average molecular weight of between about 5,000 and about 200,000.
Claim 62
Dependent Claim
22 words
The adhesive material of claim 56, wherein said polymer has a T g of less than room temperature to about 100° C.
Claim 63
Dependent Claim
61 words
The adhesive material of claim 56, wherein said repeating monomer or comonomer units comprise repeating monomer or comonomer units derived from monomers selected from the group consisting of alpha-hydroxycarboxylic acids, beta-hydroxycarboxylic acids, gamma-hydroxycarboxylic acids, delta-hydroxycarboxylic acids, epsilon-hydroxycarboxylic acids, beta-lactones, gamma-lactones, delta-lactones, epsilon-lactones, beta-lactams, gamma-lactams, delta-lactams, epsilon-lactams, cyclic diesters of alpha-hydroxycarboxylic acids, dioxanones, substituted variations of the foregoing compounds, and combinations thereof.
Claim 64
Dependent Claim
36 words
The adhesive material of claim 56, wherein said polymer is produced by polymerization of monomers, at least 50% by weight of which are monomers selected from the group consisting of lactic acid, lactide, and combinations thereof.
Claim 65
Dependent Claim
36 words
The adhesive material of claim 56, wherein said lactide monomers comprise a preponderance of optically active lactide and a lesser amount of optically inactive lactide selected from the group consisting of racemic L,D-lactide and meso L,D-lactide.
Claim 66
Dependent Claim
20 words
The adhesive material of claim 56, wherein said modifier is thermally and chemically stable at temperatures below about 130° C.
Claim 67
Dependent Claim
91 words
The adhesive material of claim 56, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, e-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, ketones, amides, nitriles, and combinations of the foregoing.
Claim 68
Dependent Claim
70 words
The adhesive material of claim 56, wherein said modifier comprises modifier selected from the group consisting of adipic acid derivatives, azelaic acid derivatives, cyclic esters of oligomers of lactic acid, esters of oligomers of lactic acid, citric acid derivatives, polyesters of adipic acid, polyesters of azelaic acid, polyesters of sebacic acid, sebacic acid derivatives, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, and combinations thereof.
Claim 69
Dependent Claim
156 words
The adhesive material of claim 56, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, bis(2-ethylhexyl)adipate, diisodecyl adipate, bis (2-butoxyethyl) adipate, bis (2-ethylhexyl) azelate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, acetylated lactoyllactate ethyl ester, tri-n-butyl citrate, tri-n-butyl acetylcitrate, diethylene glycol dibenzoate, dipropylene glycol dibenzoate, epoxidized soy oil, 2-ethylhexyl epoxy tallate, diethylene glycol dinonanoate, triethylene glycol di(2-ethylbutyrate), pentaerythritol esters, alkoxy sucrose and glucose, acylated sucrose and glucose, alkylated and acylated glycols, starch esters, N-acylated amino acid esters, amide derivatives and oligomers of N-acylated amino acid esters, polyethylene glycol ethers, sulfonamides and derivatives, tri(2-ethylhexyl)phosphate, dimethyl phthalate, diethyl phthalate, butyl 2-ethylhexyl phthalate, bis(2-ethylhexyl)phthalate, dicyclohexylphthalate, diphenyl phthalate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, sebacic acid polyester with molecular weight from about 232 to about 7500, di-n-butyl sebacate, and bis(2-ethylhexyl)sebacate, and combinations thereof.
Claim 70
Dependent Claim
75 words
The adhesive material of claim 56, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, epsilon-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, and combinations of the foregoing.
Claim 71
Dependent Claim
60 words
The adhesive material of claim 56, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, tri-n-butyl acetylcitrate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, and combinations thereof.
Claim 72
Dependent Claim
52 words
The adhesive material of claim 56, wherein said modifier comprises modifiers selected from the group consisting of lactic acid, lactide, oligomers of lactic acid, oligomers of lactide and mixtures thereof, wherein said oligomers of lactic acid and oligomers of lactide are defined by the formula: ##STR15## where m is an integer: 2<m<75.
Claim 73
Dependent Claim
42 words
The adhesive material of claim 56, wherein said modifier comprises modifiers selected from the group consisting of acetyl tributyl citrate, lactide, glycolide, lactic acid esters, dimethyl adipate, diethyl adipate, caprolactone, acetyl triethyl citrate, bis 2-ethyl hexyl sebacate, and bis 2-ethyl hexyl adipate.
Claim 74
Dependent Claim
144 words
A coating material comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR16## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said coating material has a molecular weight in the range of from about 10,000 to about 100,000.
Claim 75
Dependent Claim
144 words
A coating material comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR16## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said coating material has a molecular weight in the range of from about 10,000 to about 100,000.
Claim 76
Dependent Claim
61 words
The coating material of claim 69, wherein said repeating monomer or comonomer units comprise repeating monomer or comonomer units derived from monomers selected from the group consisting of alpha-hydroxycarboxylic acids, beta-hydroxycarboxylic acids, gamma-hydroxycarboxylic acids, delta-hydroxycarboxylic acids, epsilon-hydroxycarboxylic acids, beta-lactones, gamma-lactones, delta-lactones, epsilon-lactones, beta-lactams, gamma-lactams, delta-lactams, epsilon-lactams, cyclic diesters of alpha-hydroxycarboxylic acids, dioxanones, substituted variations of the foregoing compounds, and combinations thereof.
Claim 77
Dependent Claim
36 words
The coating material of claim 69, wherein said polymer is produced by polymerization of monomers, at least 50% by weight of which are monomers selected from the group consisting of lactic acid, lactide, and combinations thereof.
Claim 78
Dependent Claim
36 words
The coating material of claim 69, wherein said lactide monomers comprise a preponderance of optically active lactide and a lesser amount of optically inactive lactide selected from the group consisting of racemic L,D-lactide and meso L,D-lactide.
Claim 79
Dependent Claim
20 words
The coating material of claim 69, wherein said modifier is thermally and chemically stable at temperatures below about 130° C.
Claim 80
Dependent Claim
91 words
The coating material of claim 69, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, ε-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, ketones, amides, nitriles, and combinations of the foregoing.
Claim 81
Dependent Claim
70 words
The coating material of claim 69, wherein said modifier comprises modifier selected from the group consisting of adipic acid derivatives, azelaic acid derivatives, cyclic esters of oligomers of lactic acid, esters of oligomers of lactic acid, citric acid derivatives, polyesters of adipic acid, polyesters of azelaic acid, polyesters of sebacic acid, sebacic acid derivatives, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, and combinations thereof.
Claim 82
Dependent Claim
159 words
The coating material of claim 69, wherein said modified comprises modifier selected from the group consisting of di-n-hexyl adipate, bis(2-ethylhexyl)adipate, diisodecyl adipate, bis (2-butoxyethyl) adipate, bis (2-ethylhexyl) azelate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, acetylated lactoyllactate ethyl ester, tri-n-butyl citrate, tri-n-butyl acetylcitrate, diethylene glycol dibenzoate, dipropylene glycol dibenzoate, epoxidized soy oil, 2-ethylhexyl epoxy tallate, diethylene glycol dinonanoate, triethylene glycol di(2-ethylbutyrate), pentaerythritol esters, alkoxy sucrose and glucose, acylated sucrose and glucose, alkylated and acylated glycols, starch esters, N-acylated amino acid esters, amide derivatives and oligomers of N-acylated amino acid esters, polyethylene glycol ethers, sulfonamides and derivatives, tri(2-ethylhexyl)phosphate, dimethyl phthalate, diethyl phthalate, butyl 2-ethylhexyl phthalate, bis (2-ethylhexyl) phthalate, dicyclohexyl phthalate, diphenyl phthalate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, sebacic acid polyester with molecular weight from about 232 to about 7500, di-n-butyl sebacate, and bis(2-ethylhexyl)sebacate, and combinations thereof.
Claim 83
Dependent Claim
75 words
The coating material of claim 69, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, epsilon-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, and combinations of the foregoing.
Claim 84
Dependent Claim
60 words
The coating material of claim 69, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, tri-n-butyl acetylcitrate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, and combinations thereof.
Claim 85
Dependent Claim
52 words
The coating material of claim 69, wherein said modifier comprises modifiers selected from the group consisting of lactic acid, lactide, oligomers of lactic acid, oligomers of lactide and mixtures thereof, wherein said oligomers of lactic acid and oligomers of lactide are defined by the formula: ##STR17## where m is an integer: 2<m<75.
Claim 86
Dependent Claim
42 words
The coating material of claim 69, wherein said modifier comprises modifiers selected from the group consisting of acetyl tributyl citrate, lactide, glycolide, lactic acid esters, dimethyl adipate, diethyl adipate, caprolactone, acetyl triethyl citrate, bis 2-ethyl hexyl sebacate, and bis 2-ethyl hexyl adipate.
Claim 87
Dependent Claim
140 words
A spun-bonded nonwoven material comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR18## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said polymer has a tensile strength of less than about 20,000 psi.
Claim 88
Dependent Claim
140 words
A spun-bonded nonwoven material comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR18## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said polymer has a tensile strength of less than about 20,000 psi.
Claim 89
Dependent Claim
31 words
The spun-bonded nonwoven material as claimed in claim 81, wherein said spun-bonded nonwoven material is fabricated into a product selected from the group consisting of envelopes, towels, cloth wipes and fabrics.
Claim 90
Dependent Claim
22 words
The spun-bonded nonwoven material of claim 81, wherein said polymer has a weight average molecular weight from about 100,000 to about 500,000.
Claim 91
Dependent Claim
62 words
The spun-bonded nonwoven material of claim 81, wherein said repeating monomer or comonomer units comprise repeating monomer or comonomer units derived from monomers selected from the group consisting of alpha-hydroxycarboxylic acids, beta-hydroxycarboxylic acids, gamma-hydroxycarboxylic acids, delta-hydroxycarboxylic acids, epsilon-hydroxycarboxylic acids, beta-lactones, gamma-lactones, delta-lactones, epsilon-lactones, beta-lactams, gamma-lactams, delta-lactams, epsilon-lactams, cyclic diesters of alpha-hydroxycarboxylic acids, dioxanones, substituted variations of the foregoing compounds, and combinations thereof.
Claim 92
Dependent Claim
37 words
The spun-bonded nonwoven material of claim 81, wherein said polymer is produced by polymerization of monomers, at least 50% by weight of which are monomers selected from the group consisting of lactic acid, lactide, and combinations thereof.
Claim 93
Dependent Claim
37 words
The spun-bonded nonwoven material of claim 81, wherein said lactide monomers comprise a preponderance of optically active lactide and a lesser amount of optically inactive lactide selected from the group consisting of racemic L,D-lactide and meso L,D-lactide.
Claim 94
Dependent Claim
21 words
The spun-bonded nonwoven material of claim 81, wherein said modifier is thermally and chemically stable at temperatures below about 130° C.
Claim 95
Dependent Claim
92 words
The spun-bonded nonwoven material of claim 81, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, e-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, ketones, amides, nitriles, and combinations of the foregoing.
Claim 96
Dependent Claim
71 words
The spun-bonded nonwoven material of claim 81, wherein said modifier comprises modifier selected from the group consisting of adipic acid derivatives, azelaic acid derivatives, cyclic esters of oligomers of lactic acid, esters of oligomers of lactic acid, citric acid derivatives, polyesters of adipic acid, polyesters of azelaic acid, polyesters of sebacic acid, sebacic acid derivatives, benzoic acid derivatives, epoxy derivatives, glycol derivatives, phthalic acid derivatives, phosphoric acid derivatives, and combinations thereof.
Claim 97
Dependent Claim
155 words
The spun-bonded nonwoven material of claim 81, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, bis(2-ethylhexyl)adipate, diisodecyl adipate, bis(2-butoxyethyl) adipate, bis(2-ethylhexyl)azelate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, acetylated lactoyllactate ethyl ester, tri-n-butyl citrate, tri-n-butyl acetylcitrate, diethylene glycol dibenzoate, dipropylene glycol dibenzoate, epoxidized soy oil, 2-ethylhexyl epoxy tallate, diethylene glycol dinonanoate, triethylene glycol di(2-ethylbutyrate), pentaerythritol esters, alkoxy sucrose and glucose, acylated sucrose and glucose, alkylated and acylated glycols, starch esters, N-acylated amino acid esters, amide derivatives and oligomers of N-acylated amino acid esters, polyethylene glycol ethers, sulfonamides and derivatives, tri(2-ethylhexyl)phosphate, dimethyl phthalate, diethyl, phthalate, butyl 2-ethylhexyl phthalate, bis(2-ethylhexyl)phthalate, dicyclohexyl phthalate, diphenyl phthalate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, sebacic acid polyester with molecular weight from about 232 to about 7500, di-n-butyl sebacate, and bis(2-ethylhexyl)sebacate, and combinations thereof.
Claim 98
Dependent Claim
76 words
The spun-bonded nonwoven material of claim 81, wherein said modifier comprises modifier selected from the group consisting of dicarboxylic acids, derivatives of dicarboxylic acids, polyesters of dicarboxylic acids, tricarboxylic acids, derivatives of tricarboxylic acids, polyesters of tricarboxylic acids, cyclic diesters of alpha-hydroxycarboxylic acids, derivatives of cyclic diesters of alpha-hydroxycarboxylic acids, oligomers of cyclic diesters of alpha-hydroxycarboxylic acids, beta-lactones, delta-lactones, gamma-lactones, epsilon-lactones, oligomers of alpha-hydroxycarboxylic acids, esters of oligomers of alpha-hydroxycarboxylic acids, and combinations of the foregoing.
Claim 99
Dependent Claim
61 words
The spun-bonded nonwoven material of claim 81, wherein said modifier comprises modifier selected from the group consisting of di-n-hexyl adipate, lactide, epsilon-caprolactone, glycolide, delta-valerolactone, oligomeric lactic acid, oligomeric lactic acid ethyl ester, tri-n-butyl acetylcitrate, adipic acid polyester with molecular weight from about 190 to about 6000, azelaic acid polyester with molecular weight from about 232 to about 7500, and combinations thereof.
Claim 100
Dependent Claim
53 words
The spun-bonded nonwoven material of claim 81, wherein said modifier comprises modifiers selected from the group consisting of lactic acid, lactide, oligomers of lactic acid, oligomers of lactide and mixtures thereof, wherein said oligomers of lactic acid and oligomers of lactide are defined by the formula: ##STR19## where m is an integer: 2<m<75.
Claim 101
Dependent Claim
43 words
The spun-bonded nonwoven material of claim 81, wherein said modifier comprises modifiers selected from the group consisting of acetyl tributyl citrate, lactide, glycolide, lactic acid esters, dimethyl adipate, diethyl adipate, caprolactone, acetyl triethyl citrate, bis 2-ethyl hexyl sebacate, and bis 2-ethyl hexyl adipate.
Claim 102
Dependent Claim
138 words
A garbage bag comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR20## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R2, R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said garbage bag has a tensile strength of less than about 20,000 psi.
Claim 103
Dependent Claim
138 words
A garbage bag comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR20## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R2, R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said garbage bag has a tensile strength of less than about 20,000 psi.
Claim 104
Dependent Claim
140 words
A flexible bottle comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR21## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said flexible bottle has a tensile strength of less than about 20,000 psi.
Claim 105
Dependent Claim
140 words
A flexible bottle comprising: a) a nontoxic hydrolytically degradable polymer comprising repeating monomer or comonomer units selected from the group consisting of: ##STR21## wherein X is the same or different and is O or NR' with R' being the same or different and being H, hydrocarbyl, or substituted hydrocarbyl; R 1 , R 2 , R 3 and R 4 can be the same or different and are hydrogen, hydrocarbyl containing 1 to 24 carbon atoms, or substituted hydrocarbyl containing 1 to 24 carbon atoms, and where n 1 and n 2 can be the same or different and are an integer of from 1-12; b) a nontoxic modifier, wherein said modifier is compatible with said polymer and said modifier is nonvolatile and nonfugitive; and c) wherein said flexible bottle has a tensile strength of less than about 20,000 psi.
References Cited (Backward Citations)
US5502158A
Cited
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