US4358580A
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Polyimides from tricyclo dodecane-3,6-diphenyl-1,8,4,5-tetracarboxylic acid dianhydride and tricyclo dodecane tetracarboxylic acid anhydride
Assignee: BP Corp North America Inc
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Filing: 1981-08-19
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Granted: 1982-11-09
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Expires: 2001-08-19
Abstract
Abstract Novel polyimides, copolyimides and molding compositions are prepared from novel dianhydrides such as tricyclo[6.4.0.0 2 ,7 ] dodecane-3,6-diphenyl-1,8,4,5-tetracarboxylic acid dianhydride and tricyclo[6.4.0.0 2 ,7 ] dodecane-1,8,4,5-tetracarboxylic acid dianhydride. The novel polyimides are useful as engineering plastics. The novel dianhydrides are useful for the preparation of the polyimides. Other dianhydrides can be mixed with our novel dianhydrides to make novel copolyimides useful as engineering plastics.
Inventors
- 👤 Tayseer S. Nimry
- 👤 Ellis K. Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:03
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/1042
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
32 words
A polyimide consisting essentially of the following recurring structure: ##STR8## wherein R is a divalent aliphatic, cycloaliphatic, araliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radical and Z is a hydrogen or benzene radical,
Claim 2
Dependent Claim
32 words
A polyimide consisting essentially of the following recurring structure: ##STR8## wherein R is a divalent aliphatic, cycloaliphatic, araliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radical and Z is a hydrogen or benzene radical,
Claim 3
Dependent Claim
17 words
The polyimide of claim 1 wherein R is an aliphatic hydrocarbon from 2 to 18 carbon atoms.
Claim 4
Dependent Claim
17 words
The polyimide of claim 1 wherein R is an aromatic hydrocarbon from 6 to 20 carbon atoms.
Claim 5
Dependent Claim
39 words
The polyimide of claim 1 wherein the aromatic hydrocarbon radical contains from 6 to 10 carbon atoms joined directly or by stable linkage selected from the group consisting of --O--, methylene, ##STR9## --SO--, --SO 2 --, and --S-- radicals.
Claim 6
Dependent Claim
16 words
The polyimide of claim 1 wherein the polyimide is in the form of a molded object.
Claim 7
Dependent Claim
15 words
The polyimide of claim 1 wherein the polyimide is in the form of a fiber.
Claim 8
Dependent Claim
15 words
The polyimide of claim 1 wherein the polyimide is in the form of a film.
Claim 9
Dependent Claim
20 words
The polyimide of claim 1 wherein the polyimide is in the form of a metal coating suitable for electrical service.
Claim 10
Dependent Claim
10 words
A polyimide consisting essentially of the following recurring structure: ##STR10##
Claim 11
Dependent Claim
10 words
A polyimide consisting essentially of the following recurring structure: ##STR10##
Claim 12
Dependent Claim
16 words
The polyimide of claim 9 wherein the polyimide is in the form of a molded object.
Claim 13
Dependent Claim
15 words
The polyimide of claim 9 wherein the polyimide is in the form of a laminate.
Claim 14
Dependent Claim
15 words
The polyimide of claim 9 wherein the polyimide is in the form of a film.
Claim 15
Dependent Claim
10 words
A polyimide consisting essentially of the following recurring structure: ##STR11##
Claim 16
Dependent Claim
10 words
A polyimide consisting essentially of the following recurring structure: ##STR11##
Claim 17
Dependent Claim
16 words
The polyimide of claim 13 wherein the polyimide is in the form of a molded object.
Claim 18
Dependent Claim
15 words
The polyimide of claim 13 wherein the polyimide is in the form of a laminate.
Claim 19
Dependent Claim
15 words
The polyimide of claim 13 wherein the polyimide is in the form of a film.
Claim 20
Dependent Claim
10 words
A polyimide consisting essentially of the following recurring structure: ##STR12##
Claim 21
Dependent Claim
10 words
A polyimide consisting essentially of the following recurring structure: ##STR12##
Claim 22
Dependent Claim
16 words
The polyimide of claim 17 wherein the polyimide is in the form of a molded object.
Claim 23
Dependent Claim
15 words
The polyimide of claim 17 wherein the polyimide is in the form of a laminate.
Claim 24
Dependent Claim
15 words
The polyimide of claim 17 wherein the polyimide is in the form of a film.
Claim 25
Dependent Claim
10 words
A polyimide consisting essentially of the following recurring structure: ##STR13##
Claim 26
Dependent Claim
10 words
A polyimide consisting essentially of the following recurring structure: ##STR13##
Claim 27
Dependent Claim
16 words
The polyimide of claim 21 wherein the polyimide is in the form of a molded object.
Claim 28
Dependent Claim
15 words
The polyimide of claim 21 wherein the polyimide is in the form of a fiber.
Claim 29
Dependent Claim
15 words
The polyimide of claim 21 wherein the polyimide is in the form of a film.
Claim 30
Dependent Claim
10 words
The polyimide consisting essentially of the following recurring structure: ##STR14##
Claim 31
Dependent Claim
10 words
The polyimide consisting essentially of the following recurring structure: ##STR14##
Claim 32
Dependent Claim
16 words
The polyimide of claim 25 wherein the polyimide is in the form of a molded object.
Claim 33
Dependent Claim
15 words
The polyimide of claim 25 wherein the polyimide is in the form of a film.
Claim 34
Dependent Claim
10 words
A polyimide consisting essentially of the following recurring structure: ##STR15##
Claim 35
Dependent Claim
10 words
A polyimide consisting essentially of the following recurring structure: ##STR15##
Claim 36
Dependent Claim
20 words
The copolyimide of claim 28 wherein R 1 and R 2 are aliphatic hydrocarbons from 2 to 18 carbon atoms.
Claim 37
Dependent Claim
20 words
The copolyimide of claim 28 wherein R 1 and R 2 are aromatic hydrocarbons from 6 to 20 carbon atoms.
Claim 38
Dependent Claim
39 words
The copolyimide of claim 28 wherein the aromatic hydrocarbon radical contains from 6 to 10 carbon atoms joined directly or by stable linkage selected from the group consisting of --O--, methylene, ##STR16## --SO--, --SO 2 --, and --S-- radicals.
Claim 39
Dependent Claim
16 words
The copolyimide of claim 28 wherein the copolyimide is in the form of a molded object.
Claim 40
Dependent Claim
15 words
The copolyimide of claim 28 wherein the copolyimide is in the form of a laminate.
Claim 41
Dependent Claim
15 words
The copolyimide of claim 28 wherein the copolyimide is in the form of a film.
Claim 42
Dependent Claim
31 words
A copolyimide consisting essentially of the following recurring structure: ##STR17## wherein Z is a hydrogen or benzene radical, X is a divalent hydrocarbon radical, and X' is a tetravalent hydrocarbon radical.
Claim 43
Dependent Claim
31 words
A copolyimide consisting essentially of the following recurring structure: ##STR17## wherein Z is a hydrogen or benzene radical, X is a divalent hydrocarbon radical, and X' is a tetravalent hydrocarbon radical.
Claim 44
Dependent Claim
18 words
The copolyimide of claim 35 wherein X and X' are aliphatic hydrocarbons from 2 to 18 carbon atoms.
Claim 45
Dependent Claim
18 words
The copolyimide of claim 35 wherein X and X' are aromatic hydrocarbons from 6 to 20 carbon atoms.
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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) | 1985-11-08 | 1986-05-10 | 1986-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-08 | 1990-05-10 | 1990-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-08 | 1994-05-10 | 1994-11-09 | $7700.00 | Window Closed / Lapsed |