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US4269991A
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Novel mercaptoorganosiloxanes
Assignee: Dow Silicones Corp
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Filing: 1979-12-03
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Granted: 1981-05-26
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Expires: 1999-12-03
Abstract
Abstract Novel mercaptoorganosiloxane compounds of the formula ##STR1## wherein n has a value of from 1 to 3 inclusive, are useful as components of primer compositions for enchancing the adhesion of silicone elastomers to substrates.
Inventors
- 👤 Gary R. Homan
- 👤 Louis H. Toporcer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:04
CPC Classifications
C; C09; C09D; C09D4/00; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0889; C07F7/18; C07F7/1804
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
17 words
A compound of the formula, ##STR8## wherein n has a value of from 1 to 3 inclusive.
Claim 2
Dependent Claim
17 words
A compound of the formula, ##STR8## wherein n has a value of from 1 to 3 inclusive.
Claim 3
Dependent Claim
7 words
A compound according to claim 1, 1-(7,7-dimethoxy-8-oxa-3-thia-7-silanonyl)-1,1,3,3-tetramethyl-3-vinyldisiloxane.
Claim 4
Dependent Claim
7 words
A compound according to claim 1, 1-(6,6-dimethoxy-7-oxa-3-thia-6-silaoctyl)-1,1,3,3-tetramethyl-3-vinyldisiloxane.
Claim 5
Dependent Claim
7 words
A compound according to claim 1, 1-(5,5-dimethoxy-6-oxa-3-thia-5-silaheptyl)-1,1,3,3-tetramethyl-3-vinyldisiloxane.
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) | 1984-05-25 | 1984-11-24 | 1985-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-25 | 1988-11-24 | 1989-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-25 | 1992-11-24 | 1993-05-26 | $7700.00 | Window Closed / Lapsed |