US4578417A
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US
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Stabilized moisture curable composition
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1984-10-02
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Granted: 1986-03-25
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Expires: 2004-10-02
Abstract
Abstract A moisture curable composition having an improved storage stability comprising a hydrolyzable silyl group-containing vinyl polymer and an orthoacetic acid ester as a stabilizer. The storage stability of the composition containing the hydrolyzable silyl group-containing vinyl polymer, which is curable in the presence of moisture at low temperatures, can be remarkably improved by the presence of the orthoacetic acid ester.
Inventors
- 👤 Hisao Furukawa
- 👤 Keiko Okada
- 👤 Joe Kawamura
- 👤 Yasushi Kato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:45
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/42; Y; Y10; Y10S; Y10S528/00; Y10S528/901
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
86 words
A composition comprising (A) a silyl group-containing vinyl polymer whose main chain consists essentially of a vinyl polymer and which has on the polymer chain end or a side chain thereof at least one silicon atom to which a hydrolyzable group is linked per one polymer molecule, and (B) 0.5 to 25 parts by weight per 100 parts by weight of (A) of an orthoacetic acid ester of the formula: H.sub.3 CC(OR.sup.1).sub.3 wherein R 1 is a monovalent hydrocarbon group having 1 to 16 carbon atoms.
Claim 2
Dependent Claim
86 words
A composition comprising (A) a silyl group-containing vinyl polymer whose main chain consists essentially of a vinyl polymer and which has on the polymer chain end or a side chain thereof at least one silicon atom to which a hydrolyzable group is linked per one polymer molecule, and (B) 0.5 to 25 parts by weight per 100 parts by weight of (A) of an orthoacetic acid ester of the formula: H.sub.3 CC(OR.sup.1).sub.3 wherein R 1 is a monovalent hydrocarbon group having 1 to 16 carbon atoms.
Claim 3
Dependent Claim
13 words
The composition of claim 1, wherein said orthoacetic acid ester is methyl orthoacetate.
Claim 4
Dependent Claim
22 words
The composition of claim 1, wherein said silyl group-containing vinyl polymer (A) has a number average molecular weight of 1,000 to 30,000.
Claim 5
Dependent Claim
11 words
The composition of claim 1, which further contains an alkyl alcohol.
Claim 6
Dependent Claim
18 words
The composition of claim 4, wherein said alkyl alcohol is a C 1 to C 10 alkyl alcohol.
Claim 7
Dependent Claim
33 words
The composition of claim 4, wherein said alkyl alcohol is present in an amount of 0 to 50 parts by weight per 100 parts by weight of the silyl group-containing vinyl polymer (A).
Claim 8
Dependent Claim
97 words
A composition comprising (A) a silyl group-containing vinyl polymer whose main chain consists essentially of a vinyl polymer and which has on the polymer chain end or a side chain thereof at least one silicon atom to which a hydrolyzable group is linked per one polymer molecule, (B) an orthoacetic acid ester of the formula; H.sub.3 CC(OR.sup.1).sub.3 wherein R 1 is a monovalent hydrocarbon group having 1 to 16 carbon atoms, (C) a catalyst for curing said silyl group-containing vinyl polymer (A), and (D) A solvent for the silyl group-containing vinyl polymer (A) and the catalyst (C).
Claim 9
Dependent Claim
97 words
A composition comprising (A) a silyl group-containing vinyl polymer whose main chain consists essentially of a vinyl polymer and which has on the polymer chain end or a side chain thereof at least one silicon atom to which a hydrolyzable group is linked per one polymer molecule, (B) an orthoacetic acid ester of the formula; H.sub.3 CC(OR.sup.1).sub.3 wherein R 1 is a monovalent hydrocarbon group having 1 to 16 carbon atoms, (C) a catalyst for curing said silyl group-containing vinyl polymer (A), and (D) A solvent for the silyl group-containing vinyl polymer (A) and the catalyst (C).
Claim 10
Dependent Claim
54 words
The composition of claim 7, wherein the orthoacetic acid ester (B), curing catalyst (C) and solvent (D) are present in amounts of 0.5 to 25 parts by weight, 0.5 to 5 parts by weight and 75 to 500 parts by weight, respectively, per 100 parts by weight of the silyl group-containing vinyl polymer (A).
Claim 11
Dependent Claim
13 words
The composition of claim 7, wherein said orthoacetic acid ester is methyl orthoacetate.
Claim 12
Dependent Claim
22 words
The composition of claim 7, wherein said silyl group-containing vinyl polymer (A) has a number average molecular weight of 1,000 to 30,000.
Claim 13
Dependent Claim
12 words
The composition of claim 7, wherein said solvent contains an alkyl alcohol.
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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) | 1989-03-24 | 1989-09-23 | 1990-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-24 | 1993-09-23 | 1994-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-24 | 1997-09-23 | 1998-03-25 | $7700.00 | Window Closed / Lapsed |