US4331786A
Expired / Lapsed
US
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Moldable and/or extrudable polyether-ester-amide block copolymers
Assignee: ATO Chimie SA
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Filing: 1980-09-30
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Granted: 1982-05-25
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Expires: 2000-09-30
Abstract
Abstract A moldable and/or extrudable polyether-ester-amide block copolymer is disclosed which has the formula ##STR1## wherein A is a linear saturated aliphatic polyamide sequence formed from a lactam or amino acid having a hydrocarbon chain containing 4 to 14 carbon atoms or from an aliphatic C 6 -C 12 dicarboxylic acid and a C 6 -C 9 diamine, in the presence of a chain-limiting aliphatic carboxylic diacid having 4 to 20 carbon atoms; said polyamide having an average molecular weight between 300 and 15,000; and B is a polyoxyalkylene sequence formed from linear or branched aliphatic polyoxyalkylene glycols, mixtures thereof or copolyethers derived therefrom said polyoxyalkylene glycols having a molecular weight of between 200-6,000 and n indicates a sufficient number of repeating units so that said polyether-ester-amide block copolymer has an intrinsic viscosity of from about 0.8 to about 2.05. The polyether-ester-amide block copolymer is prepared by reacting a dicarboxylic polyamide, the COOH groups of which are located at the chain ends, with a pol-oxyalkylene glycol hydroxylated at the chain ends, in the presence of a catalyst constituted by a tetraalkylorthotitanate having the general formula Ti(OR) 4 , wherein R is a linear branched aliphatic hydrocarbon radical having 1 to 24 carbon atoms.
Inventors
- 👤 Paul R. Foy
- 👤 Camille Jungblut
- 👤 Gerard E. Deleens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
134 words
A moldable and extrudable polyether-esteramide block copolymer of the formula ##STR4## wherein A is a linear saturated aliphatic polyamide sequence formed from a lactam or amino acid having a hydrocarbon chain containing 4 to 14 carbon atoms or from an aliphatic C 6 -C 12 dicarboxylic acid and a C 6 -C 9 diamine, in the presence of a chain-limiting aliphatic carboxylic diacid having 4 to 20 carbon atoms; said polyamide having an average molecular weight between 300 and 15000; and B is a polyoxyalkylene sequence formed from linear or branched aliphatic polyoxyalkylene glycols, said polyoxyalkylene glycols having a molecular weight of from about 200 to about 6000 and n indicates a sufficient number of repeating units so that said polyether-ester-amide block copolymer has an intrinsic viscosity of from about 0.8 to about 2.05.
Claim 2
Dependent Claim
134 words
A moldable and extrudable polyether-esteramide block copolymer of the formula ##STR4## wherein A is a linear saturated aliphatic polyamide sequence formed from a lactam or amino acid having a hydrocarbon chain containing 4 to 14 carbon atoms or from an aliphatic C 6 -C 12 dicarboxylic acid and a C 6 -C 9 diamine, in the presence of a chain-limiting aliphatic carboxylic diacid having 4 to 20 carbon atoms; said polyamide having an average molecular weight between 300 and 15000; and B is a polyoxyalkylene sequence formed from linear or branched aliphatic polyoxyalkylene glycols, said polyoxyalkylene glycols having a molecular weight of from about 200 to about 6000 and n indicates a sufficient number of repeating units so that said polyether-ester-amide block copolymer has an intrinsic viscosity of from about 0.8 to about 2.05.
Claim 3
Dependent Claim
49 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 1 wherein the polyoxyalkylene glycol is a polymer of an alkylene glycol containing 2 to 4 carbon atoms or of a cyclic derivative thereof or a copolymer of a mixture of said alkylene glycols or cyclic derivatives thereof.
Claim 4
Dependent Claim
28 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 2 wherein the polyoxyalkylene glycol has an average molecular weight of from about 200 to about 3000.
Claim 5
Dependent Claim
28 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 3 wherein the polyoxyalkylene glycol has an average molecular weight of from about 200 to about 400.
Claim 6
Dependent Claim
28 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 3 wherein the polyoxyalkylene glycol has an average molecular weight of from about 400 to about 3000.
Claim 7
Dependent Claim
28 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 2 wherein the polyoxyalkylene glycol has an average molecular weight of from about 500 to about 5000.
Claim 8
Dependent Claim
26 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 1 wherein the polyamide has a molecular weight of from about 800 and about 5000.
Claim 9
Dependent Claim
28 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 1 wherein the proportion by weight of the polyoxyalkylene glycol is from about 5 to about 85%.
Claim 10
Dependent Claim
29 words
The moldable and extrudable polyether-ester amide block copolymer as defined in claim 8 wherein the proportion by weight of the polyoxyalkylene glycol is from about 5 to about 50%.
Claim 11
Dependent Claim
28 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 9 wherein the proportion by weight of the polyoxyalkylene glycol is from about 5 to about 10%.
Claim 12
Dependent Claim
28 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 9 wherein the proportion by weight of the polyalkylene glycol is from about 10 to about 50%.
Claim 13
Dependent Claim
24 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 8 wherein the proportion by weight is from about 45 to about 85%.
Claim 14
Dependent Claim
28 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 12 wherein the proportion by weight of the polyoxyalkylene glycol is from about 50 to about 85%.
Claim 15
Dependent Claim
28 words
The moldable and extrudable polyether-ester-amide block copolymer as defined in claim 13 wherein the proportion by weight of the polyoxyalkylene glycol is from about 60 to about 80%.
Claim 16
Dependent Claim
40 words
The polyether-ester-amide block copolymer of claim 1 wherein the lactam or amino acid having a hydrocarbon chain of 4 to 14 carbon atoms is selected from the group consisting of caprolactam, oenantholactam, dodecalactam, undecanolcatam, dodecanolactam, 11-aminoundecanoic acid, and 12-aminododecanoic acid.
Claim 17
Dependent Claim
41 words
The polyether-ester-amide block copolymer of claim 1 wherein the polyamide is formed from a dicarboxylic acid and a diamine wherein the diamine is hexamethylene diamine or nonamethylene diamine and the acid is adipic acid, azelaic acid, sebacic acid, or 1,12-dodecanedioic acid.
Claim 18
Dependent Claim
36 words
The polyether-ester-amide block copolymer of claim 1 wherein the chain-limiting carboxylic aliphatic diacid is acid selected from the group consisting of succinic acid, adipic acid, suberic acid, azelaic acid, sebacic acid, undecanedioic acid and dodecanedioic acid.
Claim 19
Dependent Claim
31 words
The polyether-ester-amide block copolymer of claim 2 wherein the polyoxyalkylene glycol is selected from the group consisting of polyoxyethylene glycol, polyoxypropylene glycol, polyoxytetramethylene glycol, mixtures thereof and a copolyether derived therefrom.
Claim 20
Dependent Claim
102 words
A process for preparing the polyether-ester-amide block copolymer as defined in claim 1 which comprises the step of reacting a dicarboxylic polyamide as defined in claim 1, the COOH groups of which are located at the chain ends, with a polyoxyalkylene glycol as defined in claim 1 hydroxylated at the chain ends, in the presence of a catalyst constituted by a tetraalkylorthotitanate having the formula Ti(OR) 4 , wherein R is a linear branched aliphatic hydrocarbon radical having 1 to 24 carbon atoms at a sufficiently high temperature and under sufficiently high vacuum so that the reactants are in the fused state.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |