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US4278783A
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Method of curing an organoalkoxysilane compound
Assignee: Mitsubishi Gas Chemical Co Inc
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Filing: 1979-09-04
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Granted: 1981-07-14
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Expires: 1999-09-04
Abstract
Abstract A method is herein disclosed for curing an organoalkoxysilane compound characterized by using as a catalyst at least one compound selected from the group consisting of a phosphite of the formula: (RO)n P-OH)3-n and a phosphate of the formula: <IMAGE> (wherein R is an alkyl group having 1 to 4 carbon atoms and/or an aromatic group; n is an integer of 1 or 2).
Inventors
- 👤 Susumu Taniyama
- 👤 Goro Shimaoka
- 👤 Shoichi Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:09
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C08G77/08; C09; C09D; C09D4/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
45 words
A method of curing an organoalkoxysilane compound characterized by using as a catalyst a phosphite of the formula: (RO).sub.n P--OH).sub.3-n wherein R is an alkyl group having 1 to 4 carbon atoms and/or an aromatic group; and n is an integer of 1 or 2.
Claim 2
Independent Claim
45 words
A method of curing an organoalkoxysilane compound characterized by using as a catalyst a phosphite of the formula: (RO).sub.n P--OH).sub.3-n wherein R is an alkyl group having 1 to 4 carbon atoms and/or an aromatic group; and n is an integer of 1 or 2.
Claim 3
Dependent Claim
27 words
A method according to claim 1 wherein the catalyst is used in an amount of from 1 to 10% based on the weight of the organoalkoxysilane compound.
Claim 4
Dependent Claim
41 words
A method according to claim 1 wherein the organoalkoxysilane compound is selected from the group consisting of organoalkoxysilanes, carbon-functional silanes, reaction products of the organoalkoxysilanes and/or the carbon-functional silanes and compositions which mainly consist of the organoalkoxysilanes and/or the carbon-functional silanes.
Claim 5
Dependent Claim
16 words
A method according to claim 3 wherein said carbon-functional silanes are aminoalkyl alkoxysilane and epoxyalkyl alkoxysilane.
Claim 6
Dependent Claim
25 words
A method according to claim 1 wherein the organoalkoxysilane compound is cured at a temperature of at least 50° C., preferably at least 100° C.
Claim 7
Dependent Claim
12 words
A method according to claim 1 wherein the phosphite is diethyl phosphite.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-13 | 1985-01-12 | 1985-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-13 | 1989-01-12 | 1989-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-13 | 1993-01-12 | 1993-07-14 | $7700.00 | Window Closed / Lapsed |