US4435536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-pack composition
Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1982-03-22
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Granted: 1984-03-06
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Expires: 2002-03-22
Abstract
Abstract A one-pack type of curable composition comprising a blend consisting essentially of a silyl group containing resin having a backbone substantially comprising a vinyl type polymer chain and containing at least one silicon atom attached to a hydrolyzable group at a terminal or in a side chain of its molecule, a curing catalyst, and a solvent. This composition has excellent storage stability, excellent workability, excellent weather resistance, and excellent weather resistance after coating and curing, and high hardness of the coated surface after curing.
Inventors
- 👤 Yasushi Kato
- 👤 Hisao Furukawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:07
CPC Classifications
C; C08; C08L; C08L57/00; C08L57/04; C09; C09D; C09D143/00; C09D143/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
146 words
A one-pack curable composition comprising a mixture consisting essentially of (A) 100 parts by weight of a silyl group containing resin having a backbone substantially comprising a vinyl polymer chain and containing at least one silicon atom attached to a hydrolyzable group at a terminal or in a side chain of its molecule; (B) 0.1 to 10 parts by weight of a curing catalyst; and (C) a solvent; wherein said curing catalyst is selected from the group consisting of a carboxylic acid type organic tin compound, a mercaptide type organic tin compound having a Sn-S bond, and a sulfide type organic tin compound having a Sn═S bond; wherein said solvent comprises hydrolyzable ester and/or alkyl alcohol; and wherein said silyl group containing resin has a molecular weight of between 1,000 and 30,000 and contains an ethylenically unsaturated organic monomer containing active hydrogen as a copolymerization component.
Claim 2
Dependent Claim
146 words
A one-pack curable composition comprising a mixture consisting essentially of (A) 100 parts by weight of a silyl group containing resin having a backbone substantially comprising a vinyl polymer chain and containing at least one silicon atom attached to a hydrolyzable group at a terminal or in a side chain of its molecule; (B) 0.1 to 10 parts by weight of a curing catalyst; and (C) a solvent; wherein said curing catalyst is selected from the group consisting of a carboxylic acid type organic tin compound, a mercaptide type organic tin compound having a Sn-S bond, and a sulfide type organic tin compound having a Sn═S bond; wherein said solvent comprises hydrolyzable ester and/or alkyl alcohol; and wherein said silyl group containing resin has a molecular weight of between 1,000 and 30,000 and contains an ethylenically unsaturated organic monomer containing active hydrogen as a copolymerization component.
Claim 3
Dependent Claim
13 words
The composition of claim 1, wherein said hydrolyzable group is an alkoxy group.
Claim 4
Dependent Claim
22 words
The composition of claim 1, wherein said curing catalyst is used in an amount of from 0.1 to 8 parts by weight.
References Cited (Backward Citations)
US4043953A
Cited
US4157321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-06 | 1987-09-05 | 1988-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-06 | 1991-09-05 | 1992-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-06 | 1995-09-05 | 1996-03-06 | $7700.00 | Window Closed / Lapsed |