Patent US4133790A successfully refreshed from Google Patents.
US4133790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air drying thermosetting aqueous epoxy-acrylic copolymer coating systems
Assignee: Sherwin Williams Co
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Filing: 1976-12-20
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Granted: 1979-01-09
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Expires: 1996-12-20
Abstract
Abstract Thermosetting aqueous epoxy-acrylic copolymer coating systems adapted to cure on air drying are provided using a first package constituted by acid-neutralized organic solvent soluble tertiary amine copolymer comprising at least about 40% of nonreactive monoethylenic monomer, from 5-35% of monoethylenic hydroxy-functional monomer, and from 5-35% of monoethylenic tertiary amine monomer, said copolymer being in solution in a water-miscible organic solvent, and a second component comprising a resinous polyepoxide in solution in at least partially water miscible organic solvent.
Inventors
- 👤 Kazys Sekmakas
- 👤 Raj Shah
- 👤 John F. DeRossi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:17
CPC Classifications
C; C09; C09D; C09D163/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
107 words
A method of providing a thermosetting aqueous epoxy resin-acrylic copolymer coating system adapted to cure on air drying comprising providing a mixture in water consisting essentially of a first component constituted by acid-neutralized organic solvent soluble tertiary amine copolymer of copolymerized monomers comprising at least about 40% of nonreactive monoethylenic monomer, from 5-35% of monoethylenic hydroxy-functional monomer, and from 5-35% of monoethylenic tertiary amine monomer selected from the group consisting of esters and amides of monoethylenic carboxylic acids, said copolymer being in solution in a water-miscible inert organic solvent, and a second component constituted by a resinous polyepoxide in solution in at least partially water-miscible organic solvent.
Claim 2
Independent Claim
107 words
A method of providing a thermosetting aqueous epoxy resin-acrylic copolymer coating system adapted to cure on air drying comprising providing a mixture in water consisting essentially of a first component constituted by acid-neutralized organic solvent soluble tertiary amine copolymer of copolymerized monomers comprising at least about 40% of nonreactive monoethylenic monomer, from 5-35% of monoethylenic hydroxy-functional monomer, and from 5-35% of monoethylenic tertiary amine monomer selected from the group consisting of esters and amides of monoethylenic carboxylic acids, said copolymer being in solution in a water-miscible inert organic solvent, and a second component constituted by a resinous polyepoxide in solution in at least partially water-miscible organic solvent.
Claim 3
Dependent Claim
39 words
A thermosetting aqueous coating system method as recited in claim 1 in which the polyepoxide is used in an amount providing approximate stoichiometry between epoxy groups in the polyepoxide and tertiary nitrogen atoms in the amine copolymer ± 50%.
Claim 4
Dependent Claim
20 words
A thermosetting aqueous coating system method as recited in claim 1 in which said water miscible organic solvent is alcoholic.
Claim 5
Dependent Claim
44 words
A thermosetting aqueous coating system method as recited in claim 1 in which said amine copolymer consists essentially of from about 50% to about 80% of said nonreactive monomer, from 10-25% of said hydroxy functional monomer, and from 10-25% of said tertiary amine monomer.
Claim 6
Dependent Claim
23 words
A thermosetting aqueous coating system method as recited in claim 4 in which said hydroxy-functional monomer is an hydroxy alkyl acrylate or methacrylate.
Claim 7
Dependent Claim
29 words
A thermosetting aqueous coating system method as recited in claim 4 in which said tertiary amine monomer is a dimethyl or diethyl amino alkyl acrylate, methacrylate, acrylamide or methacrylamide.
Claim 8
Dependent Claim
78 words
A thermosetting aqueous epoxy resin-acrylic copolymer coating composition consisting essentially of water having dissolved therein an acid-neutralized organic solvent soluble tertiary amine copolymer of copolymerized monomers comprising at least about 40% of nonreactive monoethylenic monomer, and from 5-35% of monoethylenic hydroxy-functional monomer, and from 5-35% of monoethylenic tertiary amine monomer selected from the group consisting of esters and amides of monoethylenic carboxylic acids, said water further having emulsified therein with the aid of a surfactant a resinous polyepoxide.
Claim 9
Dependent Claim
78 words
A thermosetting aqueous epoxy resin-acrylic copolymer coating composition consisting essentially of water having dissolved therein an acid-neutralized organic solvent soluble tertiary amine copolymer of copolymerized monomers comprising at least about 40% of nonreactive monoethylenic monomer, and from 5-35% of monoethylenic hydroxy-functional monomer, and from 5-35% of monoethylenic tertiary amine monomer selected from the group consisting of esters and amides of monoethylenic carboxylic acids, said water further having emulsified therein with the aid of a surfactant a resinous polyepoxide.
Claim 10
Dependent Claim
31 words
A thermosetting aqueous composition as recited in claim 7 in which said resinous polyepoxide is a diglycidyl ether of a bisphenol having an average molecular weight in the range of 350-4000.
Claim 11
Dependent Claim
103 words
A thermosetting aqueous epoxy resin-acrylic copolymer coating mixture which cures on air drying consisting essentially of an aqueous mixture constituted by an acid-neutralized organic solvent soluble tertiary amine copolymer of copolymerized monomers comprising at least about 40% of nonreactive monoethylenic monomer, from 5-35% of monoethylenic hydroxy-functional monomer, and from 5-35% of monoethylenic tertiary amine monomer selected from the group consisting of esters and amides of monoethylenic carboxylic acids, said copolymer being in solution in a mixture of water and a water-miscible inert organic solvent, and a resinous polyepoxide in solution in at least partially water-miscible inert organic solvent emulsified in said copolymer solution.
Claim 12
Dependent Claim
103 words
A thermosetting aqueous epoxy resin-acrylic copolymer coating mixture which cures on air drying consisting essentially of an aqueous mixture constituted by an acid-neutralized organic solvent soluble tertiary amine copolymer of copolymerized monomers comprising at least about 40% of nonreactive monoethylenic monomer, from 5-35% of monoethylenic hydroxy-functional monomer, and from 5-35% of monoethylenic tertiary amine monomer selected from the group consisting of esters and amides of monoethylenic carboxylic acids, said copolymer being in solution in a mixture of water and a water-miscible inert organic solvent, and a resinous polyepoxide in solution in at least partially water-miscible inert organic solvent emulsified in said copolymer solution.
Claim 13
Dependent Claim
39 words
A thermosetting aqueous coating system method as recited in claim 1 in which said nonreactive monoethylenic monomer is selected from styrene, vinyl toluene, methyl methacrylate, acrylonitrile, vinyl acetate and C 2 -C 18 alkanol esters of monoethylenic carboxylic acids.
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) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |