Curable arcylic/fumaric pressure-sensitive adhesives

Details Curable arcylic/fumaric pressure-sensitive adhesives Curable arcylic/fumaric pressure-sensitive adhesives

1986-07-07

1988-11-22

Herbert, Thomas J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

427 35, 427 541, 4272084, 428343, 428352, 428354, 526325, 5263295, C09J 702

Patent

active

047865520

ABSTRACT:
There is provided a curable pressure-sensitive-adhesive layer comprising an interpolymerized hard-monomer system including one alkyl methacrylate present in an amount up to about 25% by weight, based on the total weight of the monomers, and a soft-monomer system present in an amount of from about 50% to about 95% by weight, and comprising at least one alkyl monoester or diester of an unsaturated dicarboxylic acid containing 4 carbon atoms wherein each alkyl group independently contains from 4 to about 8 carbon atoms, the monoester or diester being present in a total amount of up to about 30% by weight, based on the total weight of the monomers, and at least one alkyl acrylate. Cure occurs by electron-beam radiation or by ultraviolet radiation, the former at a dosage of up to 200 kiloGray, after application to a substrate. A multifunctional monomer may be used to enhance radiant-energy cure.

REFERENCES:
patent: 2544692 (1951-03-01), Kugler et al.
patent: 2642414 (1953-06-01), Bauer et al.
patent: 3725115 (1973-04-01), Christenson et al.
patent: 4069123 (1978-01-01), Skoultchi et al.
patent: 4220744 (1980-09-01), Tulacs et al.

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