US4365031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and process for making a green colored polyester
Assignee: Shell USA Inc
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Filing: 1981-03-04
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Granted: 1982-12-21
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Expires: 2001-03-04
Abstract
Abstract Specific color imparting compounds, including pigments and catalysts are used to produce a polyester resin having a green color. The compounds are added during polymerization of the polymer and the resins produced can be utilized to make various containers or packages to hold liquids or solids.
Inventors
- 👤 Fred L. Massey
- 👤 Douglas D. Callander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:55
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/82; C08G63/85; C08G63/826; C08K; C08K5/00; C08K5/0008; C08K5/0041
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
117 words
In a polyester article the improvement comprising: a small amount of various color-imparting compounds contained in the polyester for imparting a green color thereto, said color-imparting compounds comprising a niobium catalyst compound, and a blue pigment, the amount of said niobium catalyst compound utilized is such that the amount of elemental niobium in said niobium catalyst compound ranges from about 5 to about 150 parts by weight based upon one million parts by weight of said polyester, and the amount of said blue pigment ranges from about 20 parts to about 100 parts by weight based upon one million parts by weight of said polyester, said amount of said compounds imparting a green color to said article.
Claim 2
Dependent Claim
117 words
In a polyester article the improvement comprising: a small amount of various color-imparting compounds contained in the polyester for imparting a green color thereto, said color-imparting compounds comprising a niobium catalyst compound, and a blue pigment, the amount of said niobium catalyst compound utilized is such that the amount of elemental niobium in said niobium catalyst compound ranges from about 5 to about 150 parts by weight based upon one million parts by weight of said polyester, and the amount of said blue pigment ranges from about 20 parts to about 100 parts by weight based upon one million parts by weight of said polyester, said amount of said compounds imparting a green color to said article.
Claim 3
Dependent Claim
14 words
A polyester article according to claim 1, wherein said blue pigment is phthalocyanine blue.
Claim 4
Dependent Claim
32 words
A polyester article according to claim 2, wherein said niobium catalyst is selected from the group consisting of niobium penta-hydrogen oxalate, niobium oxalate, hydrated niobium pentoxide, calcined niobium pentoxide, and combinations thereof.
Claim 5
Dependent Claim
26 words
A polyester article according to claim 3 wherein said niobium catalyst is selected from the group consisting of niobium oxalate, hydrated niobium pentoxide, and combinations thereof.
Claim 6
Dependent Claim
54 words
A polyester article according to claim 4, wherein the amount of said niobium ranges from about 20 parts to about 50 parts, and wherein the amount of said phthalocyanine blue compound ranges from about 30 to about 70 parts, and said blue pigment has a pigment blue number of 15, Colour Index Number 74160.
Claim 7
Dependent Claim
67 words
A polyester article according to claims 1, 3, or 5, including a titanium compound, said titanium compound selected from the group consisting of a titanium chelate, a titanium alkyl ester having from 3 to 10 carbon atoms, and combinations thereof, the amount of said titanium compound ranging from about 5 to about 150 parts by weight of titanium per one million parts by weight of said polymer.
Claim 8
Dependent Claim
63 words
A polyester article according to claim 6, wherein said titanium compound is selected from the group consisting of titanium triethanolamine, titanium acetyl acetonate, tetrabutyl titanate, tetraisopropyl titanate, titanium glycolate, lactic acid titanium chelate, tetraoctylene glycol titanium chelate, and combinations thereof, and wherein the amount of said titanium compound ranges from about 10 parts to about 50 parts per million parts of said polymer.
Claim 9
Dependent Claim
52 words
A polyester article according to claim 1, 3, or 5, wherein said polyester article is in the form of a bottle, and wherein said color has a Hunter (a) coordinate value of from about minus 10 to about minus 40 and a (b) coordinate value of from about 1 to about 15.
Claim 10
Dependent Claim
49 words
A polyester article according to claim 6, wherein said polyester article is in the form of a bottle, and wherein said color has a Hunter (a) coordinate value of from about minus 10 to about minus 40 and a (b) coordinate value of from about 1 to about 15.
Claim 11
Dependent Claim
63 words
A polyester article according to claim 9, wherein said titanium compound is selected from the group consisting of titanium triethanolamine, titanium acetyl acetonate, tetrabutyl titanate, tetraisopropyl titanate, titanium glycolate, lactic acid titanium chelate, tetraoctylene glycol titanium chelate, and combinations thereof, and wherein the amount of said titanium compound ranges from about 10 parts to about 50 parts per million parts of said polymer.
Claim 12
Dependent Claim
93 words
A green colored polyester resin, comprising: color-imparting compounds dispersed in the polyester resin, said compounds being a niobium compound and a blue pigment, the amount of elemental niobium in said niobium compound ranges from about 5 to about 150 parts by weight per million parts by weight of said polyester resin, and the amount of said blue pigment ranges from about 20 parts to about 100 parts by weight based upon one million parts by weight of said polyester resin, said amount of said compounds imparting a green color to said polyester resin.
Claim 13
Dependent Claim
93 words
A green colored polyester resin, comprising: color-imparting compounds dispersed in the polyester resin, said compounds being a niobium compound and a blue pigment, the amount of elemental niobium in said niobium compound ranges from about 5 to about 150 parts by weight per million parts by weight of said polyester resin, and the amount of said blue pigment ranges from about 20 parts to about 100 parts by weight based upon one million parts by weight of said polyester resin, said amount of said compounds imparting a green color to said polyester resin.
Claim 14
Dependent Claim
23 words
A green colored polyester resin according to claim 11, wherein said blue pigment is phthalocyanine blue, having a Colour Index Number of 74160.
Claim 15
Dependent Claim
34 words
A green colored polyester resin according to claim 12, wherein said niobium compound is selected from the group consisting of niobium pentahydrogen oxalate, niobium oxalate, hydrated niobium pentoxide, calcined niobium pentoxide, and combinations thereof.
Claim 16
Dependent Claim
23 words
A green colored polyester resin according to claim 13, wherein the intrinsic viscosity of said resin ranges from about 0.60 to about 1.0.
Claim 17
Dependent Claim
28 words
A green colored polyester resin according to claim 14, wherein said niobium compound is selected from the group consisting of niobium oxalate, hydrated niobium pentoxide, and combinations thereof.
Claim 18
Dependent Claim
54 words
A green colored polyester resin according to claim 13, wherein the amount of niobium compound ranges from about 20 parts to about 50 parts, and wherein the amount of said phthalocyanine blue compound ranges from about 30 parts to about 70 parts, and wherein said intrinsic viscosity ranges from about 0.70 to about 0.85.
Claim 19
Dependent Claim
66 words
A green colored polyester resin according to claim 16, wherein said green color has a solid state Gardner (a) coordinate of from about minus 15 to about minus 30 and a (b) coordinate of from about 3 to about 12, and a Feed Gardner (a) coordinate of from about minus 8 to about minus 25 and a (b) coordinate of from about 2 to about 10.
Claim 20
Dependent Claim
69 words
A green colored polyester resin according to claims 11, 14, 16, or 17, including a titanium compound, said titanium compound selected from the group consisting of a titanium chelate, a titanium ester having from 3 to 10 carbon atoms, and combinations thereof, the amount of said titanium compound ranging from about 5 to about 150 parts by weight of titanium per one million parts by weight of said resin.
Claim 21
Dependent Claim
65 words
A green colored polyester resin according to claim 18, wherein said titanium compound is selected from the group consisting of titanium triethanolamine, titanium acetyl acetonate, tetrabutyl titanate, tetraisopropyl titanate, titanium glycolate, lactic acid titanium chelate, tetraoctylene glycol titanium chelate, and combinations thereof, and wherein the amount of said titanium compound ranges from about 10 parts to about 50 parts per million parts of said resin.
Claim 22
Dependent Claim
61 words
A process for making a polyester resin having a green color, comprising the steps of: preparing a polyester resin, adding a niobium compound to said polyester resin during preparation thereof, adding a blue pigment to said polyester resin during preparation thereof, and imparting a green color to said resin by utilizing sufficient amounts of said niobium compound, and said blue pigment.
Claim 23
Dependent Claim
61 words
A process for making a polyester resin having a green color, comprising the steps of: preparing a polyester resin, adding a niobium compound to said polyester resin during preparation thereof, adding a blue pigment to said polyester resin during preparation thereof, and imparting a green color to said resin by utilizing sufficient amounts of said niobium compound, and said blue pigment.
Claim 24
Dependent Claim
70 words
A process according to claim 20, wherein, based upon one million parts of said polyester resin, the amount of niobium contained in said niobium compound is from about 5 to about 150 parts by weight per one million parts by weight of said polyester resin, wherein said blue pigment is phthalocyanine blue, and wherein the amount of said phthalocyanine blue is from about 20 to about 100 parts by weight.
Claim 25
Dependent Claim
39 words
A process according to claim 21, wherein said niobium compound added to said polyester article during preparation thereof is selected from the group consisting of niobium penta-hydrogen oxalate, niobium oxalate, hydrated niobium pentoxide, calcined niobium pentoxide, and combinations thereof.
Claim 26
Dependent Claim
26 words
A process according to claim 22, including polymerizing said polyester resin during preparation thereof so that the intrinsic viscosity ranges from about 0.60 to about 1.0.
Claim 27
Dependent Claim
34 words
A process according to claim 23, wherein said niobium compound is niobium oxalate, hydrated niobium pentoxide, and combinations thereof, and wherein said intrinsic viscosity of said resin ranges from about 0.70 to about 0.85.
Claim 28
Dependent Claim
38 words
A process according to claim 24, wherein the amount of said niobium compound ranges from about 20 to about 50 parts, and wherein the amount of said phthalocyanine blue compound ranges from about 30 to about 70 parts.
Claim 29
Dependent Claim
68 words
A process according to claim 21, 22, 24, or 25, including adding a titanium compound, said titanium compound selected from the group consisting of a titanium chelate, a titanium alkyl ester having from 3 to 10 carbon atoms, and combinations thereof, the amount of said titanium compound ranging from about 5 to about 150 parts by weight of titanium per one million parts by weight of said polymer.
Claim 30
Dependent Claim
66 words
A process according to claim 26, wherein said titanium compound is selected from the group consisting of titanium triethanolamine, titanium acetyl acetonate, tetrabutyl titanate, tetraisopropyl titanate, titanium glycolate, lactic acid titanium chelate, tetraoctylene glycol titanium chelate, and combinations thereof, and wherein the amount of titanium in said titanium compound ranges from about 10 to about 50 150 parts per million parts by weight of said resin.
Claim 31
Dependent Claim
34 words
A process according to claim 27, including adding said niobium compound and said titanium catalysts during the polycondensation stage of preparation and including adding said phthalocyanine blue compound during the esterification stage of preparation.
Claim 32
Dependent Claim
17 words
A process according to claim 21, 22, or 25, including making said polyester resin into a bottle.
Claim 33
Dependent Claim
14 words
A process according to claim 26, including making said polyester resin into a bottle.
Claim 34
Dependent Claim
14 words
A process according to claim 26, including forming said polyester resin by melt polymerization.
Claim 35
Dependent Claim
15 words
A process according to claim 26, including forming said polyester resin by solid state polymerization.
Claim 36
Dependent Claim
14 words
A process according to claim 27, including making said polyester resin into a bottle.
Claim 37
Dependent Claim
14 words
A process according to claim 27, including forming said polyester resin by melt polymerization.
Claim 38
Dependent Claim
15 words
A process according to claim 27, including forming said polyester resin by solid state polymerization.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |