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US4755585A
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Injection moldable polyamide imide from trimellitic anhydride end capped with aniline
Assignee: Syensqo Specialty Polymers USA LLC
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Filing: 1986-07-25
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Granted: 1988-07-05
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Expires: 2006-07-25
Abstract
Abstract Novel polymers and molding compositions are prepared from acyl halide derivatives of tricarboxylic acids and diamines and about 1 to about 10 percent by weight of phthalic anhydride, trimellitic anhydride or aniline moieties. The polymers are useful in engineering plastics.
Inventors
- 👤 Robert B. Hanson
- 👤 Jeffrey D. Felberg
- 👤 Gary T. Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:41
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G73/00; C08G73/06; C08G73/10; C08G73/14
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
22 words
An injection moldable polyamide-imide polymer end-capped with about 1 to about 5 percent aniline moieties and comprising recurring amide-imide moieties of: ##STR10##
Claim 2
Dependent Claim
22 words
An injection moldable polyamide-imide polymer end-capped with about 1 to about 5 percent aniline moieties and comprising recurring amide-imide moieties of: ##STR10##
Claim 3
Dependent Claim
19 words
The polyamide-imide polymer of claim 1 in combination with about 1 to about 5 percent of an amorphous polyamide.
Claim 4
Dependent Claim
16 words
The polyamide-imide polymer of claim 2 wherein said amorphous polyamide has the following recurring structure. ##STR11##
Claim 5
Dependent Claim
96 words
An injection moldable polyamide-imide polymer end-capped with about 1 to about 5 percent aniline moieties and comprising recurring units of: ##STR12## and units of: ##STR13## and units of: ##STR14## wherein one carbonyl group is meta to and one carbonyl group is para to each amide group and wherein Z is a trivalent benzene ring or a lower-alkyl-substituted trivalent benzene ring, R 1 and R 2 are the same or different and are selected from the group consisting of ##STR15## and R 3 is the same as R 1 or R 2 or has the structure ##STR16##
Claim 6
Dependent Claim
96 words
An injection moldable polyamide-imide polymer end-capped with about 1 to about 5 percent aniline moieties and comprising recurring units of: ##STR12## and units of: ##STR13## and units of: ##STR14## wherein one carbonyl group is meta to and one carbonyl group is para to each amide group and wherein Z is a trivalent benzene ring or a lower-alkyl-substituted trivalent benzene ring, R 1 and R 2 are the same or different and are selected from the group consisting of ##STR15## and R 3 is the same as R 1 or R 2 or has the structure ##STR16##
Claim 7
Dependent Claim
44 words
The polyamide-imide polymer of claim 4 wherein R 1 and R 2 have the following structure: ##STR17## and R 3 has the structure: ##STR18## wherein the mole ratio of R 3 to both R 1 and R 2 is about 5:95 to about 30:70.
Claim 8
Dependent Claim
20 words
The polyamide-imide polymer of claim 4 wherein R 1 , R 2 and R 3 have the following structure: ##STR19##
Claim 9
Dependent Claim
20 words
The polyamide-imide polymer of claim 4 wherein R 1 , R 2 and R 3 have the following structure: ##STR20##
Claim 10
Dependent Claim
45 words
The polyamide-imide polymer of claim 4 wherein R 1 and R 2 have the following structure: ##STR21## and R 3 is a divalent aliphatic hydrocarbon wherein the mole ratio of R 3 to both R 1 and R 2 is about 5:95 to about 30:70.
Claim 11
Dependent Claim
26 words
The polyamide-imide polymer of claim 5 wherein the mole ratio of R 3 to both R 1 and R 2 is about 10:90 to about 20:80.
Claim 12
Dependent Claim
14 words
The polyamide-imide polymer of claim 8 wherein R 3 has the following structure: ##STR22##
Claim 13
Dependent Claim
96 words
An injection moldable polyamide-imide polymer end-capped with about 1 to about 5 percent aniline moieties and comprising recurring amide-imide units of: ##STR23## and units of: ##STR24## and units of: ##STR25## wherein one carbonyl group is meta to and one carbonyl group is para to each amide group and wherein Z is a trivalent benzene ring or lower-alkyl-substituted trivalent benzene ring, R 1 and R 2 are the same or different and are selected from the group consisting of ##STR26## and R 3 is the same as R 1 or R 2 or has the structure ##STR27##
Claim 14
Dependent Claim
96 words
An injection moldable polyamide-imide polymer end-capped with about 1 to about 5 percent aniline moieties and comprising recurring amide-imide units of: ##STR23## and units of: ##STR24## and units of: ##STR25## wherein one carbonyl group is meta to and one carbonyl group is para to each amide group and wherein Z is a trivalent benzene ring or lower-alkyl-substituted trivalent benzene ring, R 1 and R 2 are the same or different and are selected from the group consisting of ##STR26## and R 3 is the same as R 1 or R 2 or has the structure ##STR27##
Claim 15
Dependent Claim
20 words
The polyamide-imide polymer of claim 11 wherein R 1 , R 2 and R 3 have the following structure: ##STR28##
Claim 16
Dependent Claim
45 words
The polyamide-imide polymer of claim 11 wherein R 1 and R 2 have the following structure: ##STR29## and R 3 has the following structure: ##STR30## wherein the mole ratio of R 3 to both R 1 and R 2 is about 5:95 to about 30:70.
Claim 17
Dependent Claim
42 words
The polyamide-imide polymer of claim 11 wherein R 1 and R 2 have the following structure: ##STR31## and R 3 is ##STR32## wherein the mole ratio of R 3 to both R 1 and R 2 is about 20:80 to about 40:60.
Claim 18
Dependent Claim
20 words
The polyamide-imide polymer of claim 11 wherein R 1 , R 2 and R 3 have the following structure: ##STR33##
Claim 19
Dependent Claim
45 words
The polyamide-imide polymer of claim 11 wherein R 1 and R 2 have the following structure: ##STR34## and R 3 is a divalent aliphatic hydrocarbon wherein the mole ratio of R 3 to both R 1 and R 2 is about 5:95 to about 30:70.
Claim 20
Dependent Claim
26 words
The polyamide-imide polymer of claim 13 wherein the mole ratio of R 3 to both R 1 and R 2 is about 10:90 to about 20:80.
Claim 21
Dependent Claim
14 words
The polyamide-imide polymer of claim 16 wherein R 3 has the following structure: ##STR35##
References Cited (Backward Citations)
US4136085A
Cited
US4258155A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-07-05 | 1992-01-04 | 1992-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-05 | 1996-01-04 | 1996-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-05 | 2000-01-04 | 2000-07-05 | $7700.00 | Window Closed / Lapsed |