Patent US3723567A successfully refreshed from Google Patents.
US3723567A
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US
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Stable organosilicon compositions
Assignee: Dow Silicones Corp
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Filing: 1971-08-25
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Granted: 1973-03-27
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Expires: 1991-08-25
Abstract
Abstract Organosilicon compositions comprising a first component having at least two monovalent hydrocarbon radicals containing aliphatic unsaturation per molecule, a second component containing at least two silicon-bonded hydrogen atoms, and a platinum catalyst are inhibited by the addition of an amine-functional silane to decrease the rate of curing at room temperature. The compositions can be readily cured at elevated temperatures to provide coating resins, potting compounds and silicone elastomers.
Inventors
- 👤 A Mink
- 👤 D Mitchell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:38
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/16; C; C08; C08K; C08K3/00; C08K3/01; C08K3/011; C08K5/00; C08K5/54; C08L; C08L83/00; C08L83/04; B01J2531/00; B01J2531/80; B01J2531/82; B01J2531/828; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/20; C08G77/22; C08G77/24; C08G77/26; C08G77/70
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
22 words
A composition in accordance with claim 1 wherein R is a monovalent hydrocarbon radical containing from 1 to 18 inclusive carbon atoms.
Claim 2
Dependent Claim
50 words
A composition in accordance with claim 2 wherein R'' is selected from the group consisting of the hydrogen atom, monovalent hydrocarbon radicals free of aliphatic unsaturation containing from 1 to 18 inclusive carbon atoms and monovalent halohydrocarbon radicals free of aliphatic unsaturation containing from 1 to 18 inclusive carbon atoms.
Claim 3
Dependent Claim
40 words
A composition in accordance with claim 3 wherein R is selected from the group consisting of methyl, phenyl and vinyl radicals and R'' is selected from the group consisting of the hydrogen atom, the methyl radical and the phenyl radical.
Claim 4
Dependent Claim
13 words
A composition in accordance with claim 3 wherein R'''' is a -(CH2)3- radical.
Claim 5
Dependent Claim
34 words
A composition in accordance with claim 3 wherein the amine-functional silane d is present in an amount sufficient to provide at least one mole of nitrogen per mole of platinum present in catalyst c.
Claim 6
Dependent Claim
14 words
A composition in accordance with claim 6 wherein the amine-functional silane d is H2NCH2CH2NHCH2CH2CH2Si(OCH3)3.
Claim 7
Dependent Claim
14 words
A composition in accordance with claim 6 wherein the amine-functional silane d is H2NCH2CH2CH2Si(OC2H5)3.
Claim 8
Dependent Claim
35 words
A composition in accordance with claim 6 wherein the amine-functional silane d is present in an amount sufficient to provide from 2 to 200 moles of nitrogen per mole of platinum present in catalyst c.
Claim 9
Dependent Claim
41 words
A composition in accordance with claim 9 wherein the catalyst c is a platinum halide and is present in an amount in the range of from 1 to 20 parts per million part of the combined weight of a and b.
References Cited (Backward Citations)
US3020260A
Cited
US3453233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |