US4358558A
Expired / Lapsed
US
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Room temperature curable polyorganosiloxane compositions
Assignee: Momentive Performance Materials Japan LLC
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Filing: 1981-12-23
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Granted: 1982-11-09
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Expires: 2001-12-23
Abstract
Abstract There is provided a paintable room temperature curable polyorganosiloxane composition which is comprised of a silanol-terminated polydiorganosiloxane, an aminoxy functional organosilicon compound, an inorganic filler and a monohydric unsaturated alcohol containing a carbon-to-carbon triple bond and a hydroxyl group bonded with a primary or secondary carbon atom.
Inventors
- 👤 Chiyuki Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:22
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/05; Y; Y10; Y10S; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
85 words
A room temperature curable polyorganosiloxane composition comprising: (A) 100 parts by weight of a silanol group-terminated polydiorganosiloxane having a viscosity at 25° C. of 100-200,000 cSt; (B) 0.1-30 parts by weight of an aminoxy group-containing organosilicon compound containing an average of more than 2 organoaminoxy groups per molecule; (C) 5-300 parts by weight of an inorganic filler, and (D) 0.01-10 parts by weight of a monohydric unsaturated alcohol containing a carbon-to-carbon triple bond and a hydroxyl group bonded with a primary or secondary carbon atom.
Claim 2
Dependent Claim
85 words
A room temperature curable polyorganosiloxane composition comprising: (A) 100 parts by weight of a silanol group-terminated polydiorganosiloxane having a viscosity at 25° C. of 100-200,000 cSt; (B) 0.1-30 parts by weight of an aminoxy group-containing organosilicon compound containing an average of more than 2 organoaminoxy groups per molecule; (C) 5-300 parts by weight of an inorganic filler, and (D) 0.01-10 parts by weight of a monohydric unsaturated alcohol containing a carbon-to-carbon triple bond and a hydroxyl group bonded with a primary or secondary carbon atom.
Claim 3
Dependent Claim
40 words
A composition according to claim 1 wherein component (D) is an unsaturated alcohol of the general formula: R.sup.1 --C.tbd.C--R.sup.2 --OH wherein R 1 represents a hydrogen atom or a monovalent hydrocarbon group and R 2 represents a divalent hydrocarbon group.
Claim 4
Dependent Claim
20 words
A composition according to claim 1 wherein at least 85% of the organic groups of component (A) are methyl groups.
Claim 5
Dependent Claim
17 words
A composition according to claim 3 wherein all the organic groups of component (A) are methyl groups.
Claim 6
Dependent Claim
18 words
A composition according to claim 1 wherein component (A) has a viscosity at 25° C. of 500-50,000 cSt.
Claim 7
Dependent Claim
22 words
A composition according to claim 1 wherein the organic group bonded with the aminoxy group of component (B) is an ethyl group.
Claim 8
Dependent Claim
14 words
A composition according to claim 1 wherein the inorganic filler (C) is calcium carbonate.
Claim 9
Dependent Claim
19 words
A composition according to claim 1 wherein component (C) is used in an amount of 0.05-5 parts by weight.
References Cited (Backward Citations)
US3933880A
Cited
US4221896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-08 | 1986-05-10 | 1986-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-08 | 1990-05-10 | 1990-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-08 | 1994-05-10 | 1994-11-09 | $7700.00 | Window Closed / Lapsed |