US4514445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming a corrosion resistant coating
Assignee: Dai Nippon Toryo Co Ltd
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Filing: 1983-11-08
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Granted: 1985-04-30
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Expires: 2003-11-08
Abstract
Abstract A process for forming a corrosion resistant coating, which comprises (i) a step of priming a solvent-type coating composition on a substrate and drying it to form a prime coat, and (ii) a step of coating a radical-polymerizable and oxidation-polymerizable, room temperature curing type solventless coating composition on the prime coat and polymerizing it to form a cured coating.
Inventors
- 👤 Sadakazu Hokamura
- 👤 Seiji Yamada
- 👤 Mitsutoshi Aritomi
- 👤 Yuji Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:06
CPC Classifications
B; B05; B05D; B05D7/00; B05D7/50; B05D7/52; B05D7/54; B05D7/542; B05D2202/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
212 words
A process for forming a corrosion resistant coating, which comprises (i) a step of priming a solvent-type coating composition on a corrodible substrate and drying it to form a prime coat, and (ii) a step of coating a radical-polymerizable, and oxidation-polymerizable, room temperature curing solventless coating composition on the dry prime coat and polymerizing it to form a cured coating, wherein the solvent-type coating composition contains a volatile organic solvent and is selected from the group consisting of a boiled drying oil coating composition, an alkyd resin coating composition, an epoxy resin coating composition, a polyurethane resin coating composition, a chlorinated rubber coating composition and a vinyl resin coating composition, and wherein the radical-polymerizable and oxidation-polymerizable, room temperature curing solventless coating composition is composed essentially of a curing catalyst and a resin component comprising (A) from 30 to 70% by weight an oil-modified alkyd resin having an oil length of from 30 to 70% and modified with an α,β-unsaturated monocarboxylic acid selected from the group consisting of sorbic acid, crotonic acid and 2-(β-furyl) acrylic acid, the content of the α,β-unsaturated monocarboxylic acid in the alkyd resin being from 0.5 to 30% by weight, and (B) from 70 to 30% by weight of a polymerizable monomer in which the ingredient (A) is dissolved.
Claim 2
Dependent Claim
212 words
A process for forming a corrosion resistant coating, which comprises (i) a step of priming a solvent-type coating composition on a corrodible substrate and drying it to form a prime coat, and (ii) a step of coating a radical-polymerizable, and oxidation-polymerizable, room temperature curing solventless coating composition on the dry prime coat and polymerizing it to form a cured coating, wherein the solvent-type coating composition contains a volatile organic solvent and is selected from the group consisting of a boiled drying oil coating composition, an alkyd resin coating composition, an epoxy resin coating composition, a polyurethane resin coating composition, a chlorinated rubber coating composition and a vinyl resin coating composition, and wherein the radical-polymerizable and oxidation-polymerizable, room temperature curing solventless coating composition is composed essentially of a curing catalyst and a resin component comprising (A) from 30 to 70% by weight an oil-modified alkyd resin having an oil length of from 30 to 70% and modified with an α,β-unsaturated monocarboxylic acid selected from the group consisting of sorbic acid, crotonic acid and 2-(β-furyl) acrylic acid, the content of the α,β-unsaturated monocarboxylic acid in the alkyd resin being from 0.5 to 30% by weight, and (B) from 70 to 30% by weight of a polymerizable monomer in which the ingredient (A) is dissolved.
Claim 3
Dependent Claim
23 words
The process according to claim 1, wherein the solvent-type coating composition is a coating composition comprising a bisphenol epoxy resin as the vehicle.
Claim 4
Dependent Claim
17 words
Process according to claim 2, wherein the polymerizable monomer (B) has a boiling point exceeding 200° C.
Claim 5
Dependent Claim
20 words
The process according to claim 2, wherein both the solvent-type coating composition and the solventless coating compositions includes a pigment.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |