US4871591A
Expired / Lapsed
US
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Finish coating method
Assignee: Kansai Paint Co Ltd
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Filing: 1988-01-26
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Granted: 1989-10-03
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Expires: 2008-01-26
Abstract
Abstract Disclosed is a finish coating method for forming a finish coat, comprising the steps of applying to a substrate a base coating composition containing a pigment and applying a clear top coating composition to the coated surface, the method being characterized in that the clear top coating composition is a curable one comprising predominantly a nonaqueous dispersion of a polymer of radically polymerizable monomer, the dispersion being prepared by polymerization of the radically polymerizable monomer in an organic solvent in which the monomer is soluble and in which the polymer produced from the monomer is insoluble and in the presence of a fluoroolefin polymer as a dispersion stabilizer which is soluble in the organic solvent and which has a weight-average molecular weight of about 5,000 to about 120,000 and a fluorine content of about 1 to about 60% by weight.
Inventors
- 👤 You Sugimura
- 👤 Tadashi Watanabe
- 👤 Yutaka Sugiyama
- 👤 Kazuhiko Ohira
- 👤 Nobushige Numa
- 👤 Sachio Yamaguchi
- 👤 Akira Kasari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:49
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/50; B05D7/52; B05D7/53; B05D7/532; B05D5/00; B05D5/06; B05D5/067; B05D5/068; C; C08; C08F; C08F2/00; C08F2/04; C08F2/06; C08F2/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
177 words
A finish coating method for forming a finish coat, comprising the steps of applying to a substrate a base coating composition containing a pigment and applying a clear top coating composition to the coated surface, the method being characterized in that: (1) the clear top coating composition is a curable coating comprising predominantly a nonaqueous dispersion of a polymer of a radically polymerizable monomer, the dispersion being prepared by polymerization of the radically polymerizable monomer in an organic solvent in which the monomer is soluble and in which the polymer produced from the monomer is insoluble and in the presence of a fluoroolefin polymer as a dispersion stabilizer which is soluble in the organic solvent and which has a weight-average molecular weight of about 5,000 to about 120,000 and a fluorine content of about 1 to about 60% by weight, and (2) the top coat formed from the top coating composition is comprised of a continuous phase composed of the fluoroolefin polymer and polymer particles produced from the radically polymerizable monomer and dispersed in the top coat.
Claim 2
Dependent Claim
177 words
A finish coating method for forming a finish coat, comprising the steps of applying to a substrate a base coating composition containing a pigment and applying a clear top coating composition to the coated surface, the method being characterized in that: (1) the clear top coating composition is a curable coating comprising predominantly a nonaqueous dispersion of a polymer of a radically polymerizable monomer, the dispersion being prepared by polymerization of the radically polymerizable monomer in an organic solvent in which the monomer is soluble and in which the polymer produced from the monomer is insoluble and in the presence of a fluoroolefin polymer as a dispersion stabilizer which is soluble in the organic solvent and which has a weight-average molecular weight of about 5,000 to about 120,000 and a fluorine content of about 1 to about 60% by weight, and (2) the top coat formed from the top coating composition is comprised of a continuous phase composed of the fluoroolefin polymer and polymer particles produced from the radically polymerizable monomer and dispersed in the top coat.
Claim 3
Dependent Claim
50 words
A finish coating method according to claim 1 wherein the pigment-containing base coating composition is applied to a substrate, then a clear top coating composition is applied to the coated surface, and the coated substrate is heated to cure the base coat and the top coat at the same time.
Claim 4
Dependent Claim
19 words
A finish coating method according to claim 1 wherein the pigment-containing base coating composition is a metallic coating composition.
Claim 5
Dependent Claim
20 words
A finish coating method according to claim 1 wherein the pigment-containing base coating composition is a solid color coating composition.
Claim 6
Dependent Claim
24 words
A finish coating method according to claim 3 wherein the pigment-containing base coating composition is an organic solvent-type or nonaqueous dispersion-type metallic coating composition.
Claim 7
Dependent Claim
20 words
A finish coating method according to claim 3 wherein the pigment-containing base coating composition is an aqueous metallic coating composition.
Claim 8
Dependent Claim
29 words
A finish coating method according to claim 1 wherein the fluoroolefin polymer contains as a constituent fluoroolefin having 1 to 6 fluorine atoms and 2 to 3 carbon atoms.
Claim 9
Dependent Claim
33 words
A finish coating method according to claim 7 wherein the fluoroolefin polymer contains as a constituent at least one fluoroolefin selected from the group consisting of tetrafluoroethylene, chlorotrifluoroethylene, vinyl fluoride, and vinylidene fluoride.
Claim 10
Dependent Claim
34 words
A finish coating method according to claim 7 wherein the fluoroolefin polymer contains as the copolymerizing component at least one unsaturated monomer selected from the group consisting of vinyl ether compounds and olefin compounds.
Claim 11
Dependent Claim
40 words
A finish coating method according to claim 9 wherein the copolymerizing component is at least one unsaturated monomer selected from the group consisting of alkyl vinyl ether, alicyclic vinyl ether, hydroxy vinyl ether, glycidyl group-containing vinyl ether, olefin and haloolefin.
Claim 12
Dependent Claim
22 words
A finish coating method according to claim 1 wherein the fluoroolefin polymer has a fluorine content of 10 to 40% by weight.
Claim 13
Dependent Claim
29 words
A finish coating method according to claim 1 wherein the fluoroolefin polymer has 0.1 to 2 moles of polymerizable double bonds on the average per mole of the polymer.
References Cited (Backward Citations)
US4314004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-02 | 1993-04-03 | 1993-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-02 | 1997-04-03 | 1997-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-02 | 2001-04-03 | 2001-10-03 | $7700.00 | Window Closed / Lapsed |