Patent US4826904A successfully refreshed from Google Patents.
US4826904A
Expired / Lapsed
US
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Coating composition
Assignee: KANEFAGUCHI KAGAKU KOGYO 2-4 NAKANOSHIMA 3-CHOME KITA-KU OSAKA-SHI JAPAN KK
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Filing: 1987-11-23
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Granted: 1989-05-02
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Expires: 2007-11-23
Abstract
Abstract A coating composition comprising: (A) 100 parts by weight of a vinyl polymer having on the main polymer chain end or a side chain thereof at least one silyl group containing a silicon atom to which a hydrolyzable group is linked, per one polymer molecule, the main chain of the vinyl polymer consisting essentially of a polymer of a vinyl monomer, (B) 0 to 10 parts by weight of a curing catalyst, (C) 0 to 10 parts by weight of a hydrolyzable ester compound, and (D) 0.5 to 100 parts by weight of a dialkyl ester of dibasic acid having the formula (1): ##STR1## The coating composition of the present invention has excellent adhesion to under coats, and therefore it is suitable for use as automotive refinishing paints and industrial coatings.
Inventors
- 👤 Shoichi Matsumura
- 👤 Toshiro Nanbu
- 👤 Hisao Furukawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:16
CPC Classifications
C; C09; C09D; C09D157/00; C09D157/06; C09D143/00; C09D143/04; C09D201/00; C09D201/02; C09D201/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
141 words
A coating composition comprising: (a) 100 parts by weight of a hydrolyzable silyl group-containing vinyl polymer having on the main polymer chain end or a side chain thereof at least one silyl group containing a silicon atom to which a hydrolyzable group is linked, per one polymer molecule, the main chain of said hydrolyzable silyl group-containing vinyl polymer consisting essentially of a polymer of a vinyl monomer; and (b) 0.5 to 100 parts by weight of a dialkyl ester of a dibasic acid having the formula (1): ##STR4## wherein R 1 is a bivalent group having 1 to 10 carbon atoms selected from the group consisting of alkylene, arylene and aralkylene, R 2 and R 3 are the same or different and each is an alkyl having 1 to 4 carbon atoms, and n is an integer of 1 to 10.
Claim 2
Dependent Claim
141 words
A coating composition comprising: (a) 100 parts by weight of a hydrolyzable silyl group-containing vinyl polymer having on the main polymer chain end or a side chain thereof at least one silyl group containing a silicon atom to which a hydrolyzable group is linked, per one polymer molecule, the main chain of said hydrolyzable silyl group-containing vinyl polymer consisting essentially of a polymer of a vinyl monomer; and (b) 0.5 to 100 parts by weight of a dialkyl ester of a dibasic acid having the formula (1): ##STR4## wherein R 1 is a bivalent group having 1 to 10 carbon atoms selected from the group consisting of alkylene, arylene and aralkylene, R 2 and R 3 are the same or different and each is an alkyl having 1 to 4 carbon atoms, and n is an integer of 1 to 10.
Claim 3
Dependent Claim
36 words
The composition of claim 1, wherein the amount of said dialkyl ester of a dibasic acid is from 2 to 50 parts by weight per 100 parts by weight of said hydrolyzable silyl group-containing vinyl polymer.
Claim 4
Dependent Claim
52 words
The composition of claim 1, further comprising: (c) 0 to 10 parts by weight of a curing catalyst for curing said hydrolyzable silyl group-containing vinyl polymer; and (d) 0 to 10 parts by weight of a stabilizer for stabilizing said hydrolyzable silyl group-containing vinyl polymer, said stabilizer being selected from hydrolyzable esters.
Claim 5
Dependent Claim
24 words
The composition of claim 1, wherein said hydrolyzable silyl group-containing vinyl polymer is obtained by copolymerizing a polymerizable organic silane and a vinyl monomer.
Claim 6
Dependent Claim
21 words
The composition of claim 4, wherein said polymerizable organic silane is selected from the group consisting of γ-methacryloyloxypropyltrimethoxysilane, vinyltrimethoxysilane, and vinyltriethoxysilane.
Claim 7
Dependent Claim
40 words
The composition of claim 4, wherein said vinyl monomer is selected from the group consisting of styrene, esters of acrylic acid, esters of methacrylic acid, acrylamide, acrylonitrile, methacrylamide, N-methyloylacrylamide, maleic anhydride, acrylic acid, methacrylic acid and hydroxyl group-containing vinyl monomers.
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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) | 1992-05-01 | 1992-10-31 | 1993-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-01 | 1996-10-31 | 1997-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-01 | 2000-10-31 | 2001-05-02 | $7700.00 | Window Closed / Lapsed |