Claims
- 1. An amorphous melt-processible polyamide having an inherent viscosity of at least 0.5 determined at 25.degree. C. using a solution of a 0.5 g of polymer per 100 ml of a solution of 4 wt. % LiCl in dimethylacetamide and consisting essentially of the following repeat units: ##STR13## wherein n is 4 or 5; with the proviso that when n is 4, X is from 0.05 to 0.25, and, when n is 5, X is from 0.1 to 0.45; and when n is 4, Ar is selected from the group consisting of
- a) 3,4'-oxydiphenylene or a mixture thereof with up to b 75 mol percent of 1,3-phenylene or 4,4'-oxydiphenylene or with up to 35 mol percent of 1,4-phenylene;
- b) a mixture of from 65 to 75 mol percent 1,3-phenylene and from 25 to 35 mol percent of 1,4-phenylene;
- c) a mixture of 20 to 80 mol percent 4,4'-oxydiphenylene and from 20 to 80 mol percent of 1,3-phenylene; and
- when n is 5, Ar is selected from the group consisting of
- a) 3,4'-oxydiphenylene or a mixture thereof with up to 80 mol percent of 4,4'-oxydiphenylene, up to 90 mol percent of 1,3-phenylene, or up to 50 mol percent of 1,4-phenylene;
- b) a mixture of 50 to 90 mol percent 1,3-phenylene and 10 to 50 mol percent of 1,4-phenylene;
- c) a mixture of 10 to 90 mol percent 1,3-phenylene and 10 to 90 mol percent of 4,4'-oxydiphenylene; and
- d) a mixture of 60 to 75 mol percent 4,4'-oxydiphenylene and 25 to 40 mol percent of b 1,4-phenylene.
- 2. A polyamide according to claim 1 having an inherent viscosity of at least 0.7.
- 3. A polymer according to claim 1 wherein n is 4, X is from 0.05 to 0.25 and Ar is selected from the group consisting of 3,4'-oxydiphenylene and mixtures thereof with up to 75 mol percent of 1,3-phenylene or 4,4'-oxydiphenylene or with up to 35 mol percent of 1,4-phenylene.
- 4. A polymer according to claim 1 wherein n is 4, X is from 0.05 to 0.25 and Ar is a mixture of from 20 to 80 mol percent 4,4'-oxydiphenylene and from 20 to 80 mol percent of 1,3-phenylene
- 5. A polymer according to claim 1 wherein n is 4, X is from 0.05 to 0.25 and Ar is a mixture of from 65 to 75 mol percent 1,3-phenylene and from 25 to 35 mol percent of 1,4-phenylene.
- 6. A polymer according to claim 1 wherein n is 5, X is from 0.1 to 0.45 and Ar is selected from the group consisting of 3,4'-oxydiphenylene or a mixture thereof with up to 80 mol percent of 4,4'-oxydiphenylene, up to 90 mol percent of 1,3-phenylene, or up to 50 mol percent of 1,4-phenylene.
- 7. A polymer according to claim 1 wherein n is 5, X is from 0.1 to 0.45 and Ar is a mixture of 60 to 75 mol percent 4,4'-oxydiphenylene and 25 to 40 mol percent of 1,4-phenylene.
- 8. A polymer according to claim 1 wherein n is 5, X is from 0.1 to 0.45 and Ar is a mixture of 10 to 90 mol percent 1,3-phenylene and 10 to 90 mol percent of 4,4'-oxydiphenylene.
- 9. A polymer according to claim 1 wherein n is 5, X is from 0.1 to 0.45 and Ar is a mixture of 50 to 90 mol percent 1,3-phenylene and 10 to 50 mol percent of 1,4-phenylene.
- 10. A melt-processible composition consisting essentially of a polyamide of claim 1 plasticized with a lactam of the group consisting of caprolactam and valerolactam.
- 11. A fiber or film of the polymer of claim 1.
RELATED APPLICATIONS
This application is a continuation-in-part of application Ser. No. 07/402,295, filed Sep. 5, 1989, which is a continuation-in-part of application Ser. No. 07/257,548, filed Oct. 14, 1988, both now abandoned.
US Referenced Citations (2)
Number |
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Date |
Kind |
3759877 |
Huhn et al. |
Sep 1973 |
|
3983306 |
Nielinger et al. |
Sep 1976 |
|
Foreign Referenced Citations (2)
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Country |
45-19714 |
May 1970 |
JPX |
57-114575 |
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JPX |
Non-Patent Literature Citations (1)
Entry |
Synthesis of alpha-alkyl- or aryl-N-(omega-aminotetramethylene)-upsil on-valerolactams and corresponding bislactams, Arm. Khim. ZH. 1974, 27(10) 868-71. |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
402295 |
Sep 1989 |
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Parent |
257548 |
Oct 1988 |
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