US4794192A
Expired / Lapsed
US
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Cyclic aminoalkylsilanes and their use as adhesion promoters in room temperature vulcanizable polydiorganosiloxane compositions
Assignee: General Electric Co
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Filing: 1987-07-06
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Granted: 1988-12-27
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Expires: 2007-07-06
Abstract
Abstract Cyclic aminoalkylsilane compositions are prepared by the reaction of approximately equimolar amounts of an aminoalkyltrialkoxysilane such as 3-aminopropyltrimethoxysilane and a glycidyl ether such as methyl glycidyl ether. They are useful as adhesion promoters in room temperature vulcanizable compositions comprising polyalkoxysilyl-terminated polydiorganosiloxanes.
Inventors
- 👤 Judith Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:49
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08K5/549; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C09; C09D; C09D183/00; C09D183/04; Y; Y10; Y10S; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
41 words
A composition comprising cyclic aminoalkylsilanes having the formula ##STR8## wherein R 1 is C 1-8 alkyl, each R 2 is independently hydrogen or C 1-4 primary or secondary alkyl, R 3 is methyl or ethyl and n is 2 or 3.
Claim 2
Dependent Claim
41 words
A composition comprising cyclic aminoalkylsilanes having the formula ##STR8## wherein R 1 is C 1-8 alkyl, each R 2 is independently hydrogen or C 1-4 primary or secondary alkyl, R 3 is methyl or ethyl and n is 2 or 3.
Claim 3
Dependent Claim
16 words
A composition according to claim 1 wherein R 1 is methyl and R 2 is hydrogen.
Claim 4
Dependent Claim
11 words
A composition according to claim 2 wherein R 3 is methyl.
Claim 5
Dependent Claim
10 words
A composition according to claim 3 wherein n is 3.
References Cited (Backward Citations)
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FR2273548A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-27 | 1992-06-27 | 1992-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-27 | 1996-06-27 | 1996-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-27 | 2000-06-27 | 2000-12-27 | $7700.00 | Window Closed / Lapsed |