US3607801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organopolysiloxane compositions
Assignee: Midland Silicones Ltd
•
Filing: 1969-07-16
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Granted: 1971-09-21
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Expires: 1989-07-16
Abstract
Abstract The tin carboxylate catalyst employed in room temperature vulcanizing silicone rubber systems based on hydroxyl endblocked diorganosiloxanes and silicate cross-linking agents is admixed with polyalkoxysilyl endblocked diorganosiloxane fluids for ease and accuracy of measurement and mixing.
Inventors
- 👤 Michael Fulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:07
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/02; C08G77/04; C08G77/12; C08G77/14; C08G77/16; C08G77/18; C08G77/22; C08G77/24; C08G77/26; Y; Y10; Y10S; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
13 words
The composition of claim 1 wherein the alpha, omega-diorganopolysiloxane is a dimethylsiloxane polymer.
Claim 2
Dependent Claim
11 words
The composition of claim 2 wherein R and R'''' are CH3.
Claim 3
Dependent Claim
19 words
The composition of claim 2 wherein a is 1, R is CH3, R'' is CH3CH2CH2 and R'''' is CH3.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |