Epoxy/thermoplastic photocurable adhesive composition
First Claim
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1. A curable composition formed by mixing components comprising:
- a) from about 30 to about 70 weight percent of a curable epoxy resin;
b) from about 30 to about 70 weight percent of a thermoplastic ethylene-vinyl acetate copolymer resin containing at least 40 percent by weight vinyl acetate; and
c) an effective amount of a sulfonium or cationic organometallic salt photocatalyst for the curable epoxy resin, such that the total of components a) and b) is 100 weight percent and wherein the composition is free from hydrocarbon polyolefins and solvent and is a homogeneous mixture.
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Abstract
A curable composition comprising a) a curable epoxy resin, a thermoplastic ethylene-vinyl acetate copolymer resin, and an effective amount of a photocatalyst for the curable epoxy resin, wherein the composition is free from hydrocarbon polyolefins and wherein the sum of a) and b) is 100 weight percent.
109 Citations
15 Claims
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1. A curable composition formed by mixing components comprising:
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a) from about 30 to about 70 weight percent of a curable epoxy resin; b) from about 30 to about 70 weight percent of a thermoplastic ethylene-vinyl acetate copolymer resin containing at least 40 percent by weight vinyl acetate; and c) an effective amount of a sulfonium or cationic organometallic salt photocatalyst for the curable epoxy resin, such that the total of components a) and b) is 100 weight percent and wherein the composition is free from hydrocarbon polyolefins and solvent and is a homogeneous mixture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15)
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14. A curable composition comprising an homogenous molten mixture containing:
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a) from about 40 to about 60 weight percent of a curable epoxy resin; b) from about 40 to about 60 weight percent of a thermoplastic ethylene-vinyl acetate copolymer resin wherein said copolymer contains at least 50 percent by weight vinyl acetate; and c) an effective amount of an onium salt or a cationic organometallic salt photocatalyst for the curable epoxy resin, such that the total of components a) and b) is 100 weight percent, the components a), b) and c) are a homogeneous mixture, and wherein the composition is free from hydrocarbon polyolefins and solvent.
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Specification