US4382138A
Expired / Lapsed
US
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Polyamide containing 4,4'-diamino-2,2', 6,6'-tetramethylbiphenyl moieties
Assignee: BP Corp North America Inc
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Filing: 1981-09-28
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Granted: 1983-05-03
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Expires: 2001-09-28
Abstract
Abstract Novel copolyamides and polyamides and molding compositions are prepared from 4,4'-diamino-2,2', 6,6'-tetramethylbiphenyl and aliphatic or aromatic diacids, dianhydride and mixtures of diamines. The polyamides and copolyamides are useful as engineering plastics.
Inventors
- 👤 Edward E. Paschke
- 👤 J. A. Donohue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:55
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08G69/265; C08G69/32
Claims Analysis
Total Claims: 66
Claim 1
Independent Claim
39 words
An injection moldable polyamide comprising the following recurring structure: ##STR5## wherein R is a divalent aliphatic or aromatic hydrocarbon radical or a mixture of hydrocarbon radicals and the polyamide has a glass transition temperature in excess of 171° C.
Claim 2
Dependent Claim
39 words
An injection moldable polyamide comprising the following recurring structure: ##STR5## wherein R is a divalent aliphatic or aromatic hydrocarbon radical or a mixture of hydrocarbon radicals and the polyamide has a glass transition temperature in excess of 171° C.
Claim 3
Dependent Claim
17 words
The polyamide of claim 1 wherein R is an aliphatic hydrocarbon from 2 to 18 carbon atoms.
Claim 4
Dependent Claim
17 words
The polyamide of claim 1 wherein R is an aromatic hydrocarbon from 6 to 20 carbon atoms.
Claim 5
Dependent Claim
34 words
The polyamide of claim 1 wherein the aromatic hydrocarbon radical contains from 6 to 10 carbon atoms joined directly or by stable linkage comprising --O--, methylene, ##STR6## --SO--, --SO 2 -- or --S-- radicals.
Claim 6
Dependent Claim
16 words
The polyamide of claim 1 wherein the polyamide is in the form of a molded object.
Claim 7
Dependent Claim
15 words
The polyamide of claim 1 wherein the polyamide is in the form of a laminate.
Claim 8
Dependent Claim
15 words
The polyamide of claim 1 wherein the polyamide is in the form of a fiber.
Claim 9
Dependent Claim
15 words
The polyamide of claim 1 wherein the polyamide is in the form of a film.
Claim 10
Dependent Claim
25 words
The polyamide of claim 1 wherein R is a mixture of: ##STR7## wherein the weight range of the aromatic moieties is about 99:1 to 1:99.
Claim 11
Dependent Claim
16 words
The polyamide of claim 9 wherein the polyamide is in the form of a molded object.
Claim 12
Dependent Claim
15 words
The polyamide of claim 9 wherein the polyamide is in the form of a film.
Claim 13
Dependent Claim
15 words
The polyamide of claim 9 wherein the polyamide is in the form of a fiber.
Claim 14
Dependent Claim
15 words
The polyamide of claim 9 wherein the polyamide is in the form of a laminate.
Claim 15
Dependent Claim
13 words
The polyamide of claim 1 wherein R is --(CH 2 ) 10 --.
Claim 16
Dependent Claim
16 words
The polyamide of claim 14 wherein the polyamide is in the form of a molded object.
Claim 17
Dependent Claim
15 words
The polyamide of claim 14 wherein the polyamide is in the form of a film.
Claim 18
Dependent Claim
15 words
The polyamide of claim 14 wherein the polyamide is in the form of a fiber.
Claim 19
Dependent Claim
15 words
The polyamide of claim 14 wherein the polyamide is in the form of a laminate.
Claim 20
Dependent Claim
13 words
The polyamide of claim 1 wherein R is --(CH 2 ) 4 --.
Claim 21
Dependent Claim
16 words
The polyamide of claim 19 wherein the polyamide is in the form of a molded object.
Claim 22
Dependent Claim
15 words
The polyamide of claim 19 wherein the polyamide is in the form of a film.
Claim 23
Dependent Claim
15 words
The polyamide of claim 19 wherein the polyamide is in the form of a fiber.
Claim 24
Dependent Claim
15 words
The polyamide of claim 19 wherein the polyamide is in the form of a laminate.
Claim 25
Dependent Claim
9 words
The polyamide of claim 1 wherein R is: ##STR8##
Claim 26
Dependent Claim
16 words
The polyamide of claim 24 wherein the polyamide is in the form of a molded object.
Claim 27
Dependent Claim
15 words
The polyamide of claim 24 wherein the polyamide is in the form of a film.
Claim 28
Dependent Claim
15 words
The polyamide of claim 24 wherein the polyamide is in the form of a fiber.
Claim 29
Dependent Claim
15 words
The polyamide of claim 24 wherein the polyamide is in the form of a laminate.
Claim 30
Dependent Claim
9 words
The polyamide of claim 1 wherein R is: ##STR9##
Claim 31
Dependent Claim
16 words
The polyamide of claim 29 wherein the polyamide is in the form of a molded object.
Claim 32
Dependent Claim
15 words
The polyamide of claim 29 wherein the polyamide is in the form of a film.
Claim 33
Dependent Claim
15 words
The polyamide of claim 29 wherein the polyamide is in the form of a fiber.
Claim 34
Dependent Claim
15 words
The polyamide of claim 29 wherein the polyamide is in the form of a laminate.
Claim 35
Dependent Claim
28 words
The polyamide of claim 1 wherein R is a mixture of: --(CH.sub.2).sub.4 -- and --(CH.sub.2).sub.10 -- wherein the weight range of the moieties is about 99:1 to 1:99.
Claim 36
Dependent Claim
16 words
The polyamide of claim 34 wherein the polyamide is in the form of a molded object.
Claim 37
Dependent Claim
15 words
The polyamide of claim 34 wherein the polyamide is in the form of a film.
Claim 38
Dependent Claim
15 words
The polyamide of claim 34 wherein the polyamide is in the form of a fiber.
Claim 39
Dependent Claim
15 words
The polyamide of claim 34 wherein the polyamide is in the form of a laminate.
Claim 40
Dependent Claim
59 words
An injection moldable copolyamide comprising the following recurring structure: ##STR10## wherein R and R' are the same or different aliphatic hydrocarbon radicals having from 2 to 18 carbon atoms or aromatic hydrocarbon radicals having from 6 to 20 carbon atoms or a mixture of hydrocarbon radicals and the copolyamide has a glass transition temperature in excess of 171° C.
Claim 41
Dependent Claim
59 words
An injection moldable copolyamide comprising the following recurring structure: ##STR10## wherein R and R' are the same or different aliphatic hydrocarbon radicals having from 2 to 18 carbon atoms or aromatic hydrocarbon radicals having from 6 to 20 carbon atoms or a mixture of hydrocarbon radicals and the copolyamide has a glass transition temperature in excess of 171° C.
Claim 42
Dependent Claim
13 words
The copolyamide of claim 39 wherein R is --(CH 2 ) 6 --.
Claim 43
Dependent Claim
16 words
The copolyamide of claim 40 wherein the copolyamide is in the form of a molded object.
Claim 44
Dependent Claim
15 words
The copolyamide of claim 40 wherein the copolyamide is in the form of a film.
Claim 45
Dependent Claim
15 words
The copolyamide of claim 40 wherein the copolyamide is in the form of a fiber.
Claim 46
Dependent Claim
15 words
The copolyamide of claim 40 wherein the copolyamide is in the form of a laminate.
Claim 47
Dependent Claim
13 words
The copolyamide of claim 39 wherein R is --(CH 2 ) 10 --.
Claim 48
Dependent Claim
16 words
The copolyamide of claim 45 wherein the copolyamide is in the form of a molded object.
Claim 49
Dependent Claim
15 words
The copolyamide of claim 45 wherein the copolyamide is in the form of a film.
Claim 50
Dependent Claim
15 words
The copolyamide of claim 45 wherein the copolyamide is in the form of a fiber.
Claim 51
Dependent Claim
15 words
The copolyamide of claim 45 wherein the copolyamide is in the form of a laminate.
Claim 52
Dependent Claim
9 words
The copolyamide of claim 39 wherein R is: ##STR11##
Claim 53
Dependent Claim
16 words
The copolyamide of claim 50 wherein the copolyamide is in the form of a molded object.
Claim 54
Dependent Claim
15 words
The copolyamide of claim 50 wherein the copolyamide is in the form of a film.
Claim 55
Dependent Claim
15 words
The copolyamide of claim 50 wherein the copolyamide is in the form of a fiber.
Claim 56
Dependent Claim
15 words
The copolyamide of claim 50 wherein the copolyamide is in the form of a laminate.
Claim 57
Dependent Claim
9 words
The copolyamide of claim 49 wherein R is: ##STR12##
Claim 58
Dependent Claim
16 words
The copolyamide of claim 55 wherein the copolyamide is in the form of a molded object.
Claim 59
Dependent Claim
15 words
The copolyamide of claim 55 wherein the copolyamide is in the form of a film.
Claim 60
Dependent Claim
15 words
The copolyamide of claim 55 wherein the copolyamide is in the form of a fiber.
Claim 61
Dependent Claim
15 words
The copolyamide of claim 55 wherein the copolyamide is in the form of a laminate.
Claim 62
Dependent Claim
25 words
The copolyamide of claim 39 wherein R is a mixture of: ##STR13## wherein the weight range of the aromatic moieties is about 99:1 to 1:99.
Claim 63
Dependent Claim
16 words
The copolyamide of claim 60 wherein the copolyamide is in the form of a molded object.
Claim 64
Dependent Claim
15 words
The copolyamide of claim 60 wherein the copolyamide is in the form of a film.
Claim 65
Dependent Claim
15 words
The copolyamide of claim 60 wherein the copolyamide is in the form of a fiber.
Claim 66
Dependent Claim
15 words
The copolyamide of claim 60 wherein the copolyamide is in the form of a laminate.
References Cited (Backward Citations)
US3354127A
Cited
US3901854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-02 | 1986-11-01 | 1987-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-02 | 1990-11-01 | 1991-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-02 | 1994-11-01 | 1995-05-03 | $7700.00 | Window Closed / Lapsed |