Back to results
US 4,303,760 AGranted
Adhesive
AssigneeSony Corporation
InventorsMakoto Nishimura, Yoshio Omori, Yoshio Fujiwara
Life of this patent
Estimating the term…
Abstract
An adhesive particularly suitable for use with polyvinyl fluoride sheets consisting predominantly of a copolymer of two vinyl compounds, compound (1) containing an aziridinyl group and the other vinyl compound (2) being capable of copolymerizing with the first named compound. The vinyl compound (1) has the following formula: ##STR1## where R.sub.1 is H or CH.sub.3, and R.sub.2 is an alkylene group containing from 1 to 8 carbon atoms. The adhesive may further contain an epoxy resin.
Claims4
An adhesive comprising:
- (A) a copolymer of (1) a vinyl compound containing an aziridinyl group and (2) another vinyl compound copolymerizable therewith, said vinyl compound (1) having the formula:
- ##STR5## wherein R.sub.1 is H or CH.sub.3, and R.sub.2 is an alkylene group containing 1 to 8 carbon atoms, said vinyl compound (2) being an acrylic acid ester or a methacrylic acid ester, said copolymer having a number-average molecular weight of from 10,000 to 80,000 and a weight average molecular weight of 30,000 to 400,000, and containing nitrogen atoms derived from the aziridinyl group in the range from 0.009 to 1.8% by weight of said copolymer,
- (B) an epoxy resin of the bisphenol or novolak type having an epoxy value of 100 to 3000, said epoxy resin being present in the range from 0.1 to 100 parts by weight per 100 weight parts of said copolymer.
Dependencies are inferred from the claim text.