US4404350A
Expired / Lapsed
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Silicone-imide copolymers and method for making
Assignee: General Electric Co
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Filing: 1982-07-07
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Granted: 1983-09-13
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Expires: 2002-07-07
Abstract
Abstract There is provided organopolysiloxane-polyimide copolymers based on the use of norbornane anhydride terminated organopolysiloxane, organic diamine and optionally other aromatic bisanhydride. The organopolysiloxane-polyimide copolymers can be used as insulation for electrical conductors, adhesives, molding compounds, coatings, laminates and tough elastomers.
Inventors
- 👤 Hong-Son Ryang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:45
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/42; C08G77/452; C08G77/455; C08G73/00; C08G73/06; C08G73/10; C08G73/1057; C08G73/106
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
185 words
Silicone-imide copolymers comprising norbornane terminated polydiorganosiloxane groups of the formula ##STR22## where R is selected from the group consisting of C.sub.(1-13) monovalent hydrocarbon radicals and substituted C.sub.(1-13) monovalent hydrocarbon radicals, R 1 -R 6 are selected from the group consisting of hydrogen, halogen and the same or different C.sub.(1-13) monovalent hydrocarbon radicals and substituted C.sub.(1-13) monovalent hydrocarbon radicals, R 7 is a divalent C.sub.(2-20) organic radical selected from the class consisting of (a) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (b) alkylene radicals and cycloalkylene radicals having from 2-20 carbon atoms, C.sub.(2-8) alkylene terminated polydiorganosiloxane, and (c) divalent radicals included by the formula, ##STR23## Q' is a member selected from the class consisting of ##STR24## x is a whole number from 1 to 5 inclusive, Z is a divalent radical selected from --O-- and --C(R 1 ) 2 --, Y is a radical selected from R and ##STR25## n is an integer equal to 0 to 2000 inclusive, m is a whole number equal to 0 to 500, and the sum of n+m is equal to 0 to 2000 inclusive.
Claim 2
Dependent Claim
185 words
Silicone-imide copolymers comprising norbornane terminated polydiorganosiloxane groups of the formula ##STR22## where R is selected from the group consisting of C.sub.(1-13) monovalent hydrocarbon radicals and substituted C.sub.(1-13) monovalent hydrocarbon radicals, R 1 -R 6 are selected from the group consisting of hydrogen, halogen and the same or different C.sub.(1-13) monovalent hydrocarbon radicals and substituted C.sub.(1-13) monovalent hydrocarbon radicals, R 7 is a divalent C.sub.(2-20) organic radical selected from the class consisting of (a) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (b) alkylene radicals and cycloalkylene radicals having from 2-20 carbon atoms, C.sub.(2-8) alkylene terminated polydiorganosiloxane, and (c) divalent radicals included by the formula, ##STR23## Q' is a member selected from the class consisting of ##STR24## x is a whole number from 1 to 5 inclusive, Z is a divalent radical selected from --O-- and --C(R 1 ) 2 --, Y is a radical selected from R and ##STR25## n is an integer equal to 0 to 2000 inclusive, m is a whole number equal to 0 to 500, and the sum of n+m is equal to 0 to 2000 inclusive.
Claim 3
Dependent Claim
184 words
Silicone-imide copolymer in accordance with claim 1, having chemically combined imide of the formula, ##STR26## where Q is a tetravalent organo radical selected from the class consisting of ##STR27## where D is a member selected from ##STR28## where R 8 is selected from hydrogen and R and R 9 is a member selected from the class consisting of ##STR29## and divalent organic radicals of the general formula, ##STR30## where X is a member selected from the class consisting of divalent radicals of the formulas, ##STR31## where m is 0 or 1, y is a whole number from 1 to 5, R 7 is a divalent C.sub.(2-20) organic radical selected from the class consisting of (a) aromatic hydrocarbon radicals having from 6-20 carbon atoms and halogenated derivatives thereof, (b) alkylene radicals and cycloalkylene radicals having from 2-20 carbon atoms, C.sub.(2-8) alkylene terminated polydiorganosiloxane, and (c) divalent radicals included by the formula ##STR32## Q' is a member selected from the class consisting of ##STR33## x is a whole number from 1 to 5 inclusive and b is a whole number equal to 0 to 200 inclusive.
Claim 4
Dependent Claim
13 words
A silicone imide copolymer in accordance with claim 1, where R is methyl.
Claim 5
Dependent Claim
13 words
A silicone imide copolymer in accordance with claim 2, where Q is ##STR34##
Claim 6
Dependent Claim
12 words
A silicone-imide copolymer in accordance with claim 2 where Q is ##STR35##
Claim 7
Dependent Claim
14 words
A silicone imide copolymer in accordance with claim 1, where R 7 is ##STR36##
Claim 8
Dependent Claim
13 words
A silicone-imide copolymer in accordance with claim 1, where R 7 is ##STR37##
Claim 9
Dependent Claim
21 words
A silicone-imide copolymer in accordance with claim 1, where R 1 -R 6 is hydrogen and Z is --CH 2 --.
Claim 10
Dependent Claim
23 words
A silicone-imide copolymer, consisting essentially of chemically combined silicone units of the formula, ##STR38## where R 7 is a divalent C.sub.(2-20) organo radical.
Claim 11
Dependent Claim
23 words
A silicone-imide copolymer, consisting essentially of chemically combined silicone units of the formula, ##STR38## where R 7 is a divalent C.sub.(2-20) organo radical.
Claim 12
Dependent Claim
13 words
A silicone-imide copolymer in accordance with claim 8, where R 7 is ##STR39##
Claim 13
Dependent Claim
13 words
A silicone-imide copolymer in accordance with claim 8, where R 7 is ##STR40##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-12 | 1987-03-14 | 1987-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-12 | 1991-03-14 | 1991-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-12 | 1995-03-14 | 1995-09-13 | $7700.00 | Window Closed / Lapsed |