US4303565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising ester of epoxy, unsaturated fatty acid dimer or trimer and acid containing addition polymer, and aqueous coating compositions prepared therefrom
Assignee: Valspar Corp
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Filing: 1980-08-29
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Granted: 1981-12-01
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Expires: 2000-08-29
Abstract
Abstract Non-gelled compositions containing hydroxy ester copolymer having carboxyl groups and substantially free of oxirane groups are disclosed which are the esterification reaction product of (a) acidic addition copolymer; and (b) a polyepoxide which has been partially defunctionalized by reaction with a dimer or a trimer of a fatty acid. The resulting composition is neutralized with amine, is self-emulsifiable in water and is useful for coatings.
Inventors
- 👤 Michael A. Tobias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:29
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4215; C09; C09D; C09D163/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
119 words
A stable aqueous emulsion comprising an adduct containing carboxyl groups and substantially free of oxirane groups, which adduct is the esterification reaction product of (a) an acidic addition copolymer comprising a solution copolymer of alpha, beta monoethylenically unsaturated monomers containing at least 10 weight percent of alpha, beta monoethylenically unsaturated carboxylic acid monomer based on the total weight of the monomers; and (b) a partially defunctionalized epoxy resin containing free epoxide groups, which is the reaction product of polyepoxide and a dimer or trimer of an unsaturated fatty acid containing 12 to 24 carbon atoms; in which at least a portion of the carboxyl groups in said adduct are reacted with base to render the composition self-emulsifiable in water.
Claim 2
Dependent Claim
119 words
A stable aqueous emulsion comprising an adduct containing carboxyl groups and substantially free of oxirane groups, which adduct is the esterification reaction product of (a) an acidic addition copolymer comprising a solution copolymer of alpha, beta monoethylenically unsaturated monomers containing at least 10 weight percent of alpha, beta monoethylenically unsaturated carboxylic acid monomer based on the total weight of the monomers; and (b) a partially defunctionalized epoxy resin containing free epoxide groups, which is the reaction product of polyepoxide and a dimer or trimer of an unsaturated fatty acid containing 12 to 24 carbon atoms; in which at least a portion of the carboxyl groups in said adduct are reacted with base to render the composition self-emulsifiable in water.
Claim 3
Dependent Claim
35 words
The composition of claim 1 in which said partially defunctionalized epoxy resin is the reaction product of an aromatic polyether epoxide and a dimer of an unsaturated fatty acid containing 12 to 24 carbon atoms.
Claim 4
Dependent Claim
27 words
The composition of claim 1 in which said partially defunctionalized epoxy resin is the reaction product of an aromatic polyether epoxide and the dimer of linoleic acid.
Claim 5
Dependent Claim
18 words
The composition of claim 1 which is emulsified in water in the substantial absence of added emulsifying agent.
Claim 6
Dependent Claim
19 words
The composition of claims 1, 2, or 3 in which said monoethylenically unsaturated carboxylic acid monomer is methacrylic acid.
Claim 7
Dependent Claim
21 words
The composition of claim 2 in which said aromatic polyether epoxide has an epoxy equivalent weight of between 200 and 1000.
Claim 8
Dependent Claim
36 words
The composition of claim 1 which further contains from 1 to 25 weight percent of a curing agent selected from aminoplast resins, phenoplast resins, and mixtures thereof, based on the weight of the total resin content.
Claim 9
Dependent Claim
48 words
A stable aqueous emulsion comprising the composition of claim 1 in which amine is used to form a salt with from 50 to 90 percent of the available carboxyl groups, and water is present in an amount to provide a solids content of about 10 to 50 percent.
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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) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |