US4814368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shelf stable curable silicone caulking compositions
Assignee: General Electric Co
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Filing: 1988-05-31
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Granted: 1989-03-21
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Expires: 2008-05-31
Abstract
Abstract Curable silicone caulking compositions are provided, employing an ionically polymerized silicone emulsion, a tetrafunctional organosilane, a tin condensation catalyst, calcium carbonate and tetramethylbutylguanidine, as a shelf stabilizer.
Inventors
- 👤 Judith Stein
- 👤 Tracey M. Leonard
- 👤 Sandra L. Pratt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:41
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08K; C08K5/00; C08K5/16; C08K5/29; C08K5/31; C08K13/00; C08K13/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
78 words
Curable silicone caulking compositions comprising, by weight, (A) 100 parts of a base formulation consisting essentially of an aqueous emulsion having 40 to 60% by weight solids, a pH in the range of from about 9-11, a silanol-terminated polydiorganosiloxane, and an anionic surfactant, (B) 0.1 to 5 parts of a silane cross-linker, (C) 0.3 to 2 parts of a tin catalyst, (D) up to 50 parts of a nonsiliceous filler, and (E) 0.1 to 5 parts of tetraalkylorganoguanidine.
Claim 2
Dependent Claim
78 words
Curable silicone caulking compositions comprising, by weight, (A) 100 parts of a base formulation consisting essentially of an aqueous emulsion having 40 to 60% by weight solids, a pH in the range of from about 9-11, a silanol-terminated polydiorganosiloxane, and an anionic surfactant, (B) 0.1 to 5 parts of a silane cross-linker, (C) 0.3 to 2 parts of a tin catalyst, (D) up to 50 parts of a nonsiliceous filler, and (E) 0.1 to 5 parts of tetraalkylorganoguanidine.
Claim 3
Dependent Claim
18 words
A curable silicone caulking composition in accordance with claim 1, where the silanol-terminated polydiorganosiloxane is a silanol-terminated polydimethylsiloxane.
Claim 4
Dependent Claim
16 words
A curable silicone caulking composition in accordance with claim 1, where the tin catalyst is dibutyltindilaurate.
Claim 5
Dependent Claim
17 words
A curable silicone caulking composition in accordance with claim 1, where the nonsiliceous filler is calcium carbonate.
Claim 6
Dependent Claim
16 words
A curable silicone caulking composition in accordance with claim 1, where the silane cross-linker is ethylorthosilicate.
Claim 7
Dependent Claim
14 words
A curable silicone caulking composition in accordance with claim 1, where tetraalkylorganoguanidine is tetramethylbutylguanidine.
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) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |