Patent EP0357110A1 successfully refreshed from Google Patents.
EP0357110A1
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Two component coating curable at ambient temperature via a Diels-Alder reaction
Assignee: Akzo NV
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Filing: 1989-07-27
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Granted: —
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Expires: 2009-07-27
Abstract
Abstract A two component composition curable at ambient temperature via a Diels-Alder reaction is provided. The two components of the coating system can be water-based, they can be solvent-based, or a combination thereof. The first component of the coating composition comprises a binder polymer functionalized with at least two conjugated diene groups. Although numerous binder polymers are contemplated, due to their excellent film-forming properties, examples of preferred binder polymers are those built up from reactants selected from the group consisting of furfuryl methacrylate, an aduct of sorbic acid to a polyfunctional glydicyl methacrylate copolymer, or combinations thereof, reacted in combination with at least one other monoethylenically unsaturated compound. The second component of the coating composition comprises a multifunctional maleimide curing agent. A mixture of the first and second coating components can be cured over a temperature range from about 0°C to about 120°C, and preferably from about 0°C to about 30°C.
Inventors
- 👤 Gerardus Johannes Wilhelmus Maria Maters
- 👤 Tamme Bartels
- 👤 Arie Noomen
- 👤 Michael Wallrabenstein
- 👤 Joachim Kehlenbach
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 17:25
CPC Classifications
C; C09; C09D; C09D4/00; C09D4/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
38 words
A two component coating composition comprising a binder polymer and a curing agent characterized in that said polymer binder comprises a polymer functionalized with at least two conjugated diene groups and said curing agent comprises a polyfunctional maleimide.
Claim 2
Dependent Claim
38 words
A two component coating composition comprising a binder polymer and a curing agent characterized in that said polymer binder comprises a polymer functionalized with at least two conjugated diene groups and said curing agent comprises a polyfunctional maleimide.
Claim 3
Dependent Claim
30 words
A coating composition according to Claim 1 characterized in that said binder polymer and said curing agent are soluble in an organic solvent or in a combination of organic solvents.
Claim 4
Dependent Claim
25 words
A coating composition according to Claim 1 characterized in that said binder polymer and said curing agent each comprises an aqueous dispersion, emulsion, or solution.
Claim 5
Dependent Claim
31 words
A coating composition according to Claim 1 characterized in that said binder polymer or said curing agent or both include components which include both water and at least one organic solvent.
Claim 6
Dependent Claim
51 words
A coating composition according to Claims 1-4 characterized in that said binder polymer is built up from reactants selected from the group consisting of furfuryl methacrylate, an adduct of sorbic acid to a polyfunctional glycidyl methacrylate copolymer or combinations thereof reacted in combination with at least one other monoethylenically unsaturated compound.
Claim 7
Dependent Claim
22 words
A coating composition according to Claim 5 characterized in that said at least one other monoethylenically unsaturated compound comprises a (meth)acrylate monomer.
Claim 8
Dependent Claim
16 words
A coating composition according to Claims 1-4 characterized in that said curing agent is a bismaleimide.
Claim 9
Dependent Claim
16 words
A coating composition according to Claim 5 characterized in that said curing agent comprises a bismaleimide.
Claim 10
Independent Claim
80 words
A method of preparing a coated substrate characterized in that the method comprises the steps of: (a) providing a first coating component comprising a polymer functionalized with at least two conjugated diene groups; (b) providing a second component comprising a polyfunctional maleimide; (c) mixing said first component with said second component; (d) applying said mixture of said first and second components to a substrate; and (e) curing said applied mixture over a temperature range from about 0°C to about 120°C.
Claim 11
Independent Claim
80 words
A method of preparing a coated substrate characterized in that the method comprises the steps of: (a) providing a first coating component comprising a polymer functionalized with at least two conjugated diene groups; (b) providing a second component comprising a polyfunctional maleimide; (c) mixing said first component with said second component; (d) applying said mixture of said first and second components to a substrate; and (e) curing said applied mixture over a temperature range from about 0°C to about 120°C.
Claim 12
Dependent Claim
26 words
The method according to Claim 9, characterized in that said curing step (e) is carried out over a temperature range from about 0°C to about 30°C.
Claim 13
Dependent Claim
44 words
The method according to Claim 9, characterized in that the ratio of the number of equivalents of the conjugated diene groups of said first component to the number of equivalents of maleimide groups of said second component ranges from about 0,3 to about 2,0.
Claim 14
Independent Claim
51 words
The method according to Claims 9-11, characterized in that said first coating component is built up from reactants selected from the group consisting of furfuryl methacrylate, an adduct of sorbic acid to a polyfunctional glycidyl methacrylate copolymer or combinations thereof reacted in combination with at least one other monoethylenically unsaturated compound.
Claim 15
Dependent Claim
21 words
The method according to Claim 12, characterized in that said at least one other monoethylenically unsaturated compound comprises a (meth)acrylate monomer.
Claim 16
Independent Claim
16 words
A method according to Claims 9-11, characterized in that said second coating component comprises a bismaleimide.
References Cited (Backward Citations)
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