Patent ID: 6514584
Filing Date: 2003-02-04
Classification: C08F,C08L,C09D,Y10T

Abstract:
A method of manufacturing a laminate having barrier properties comprising:(I) coating at least one side of a substrate with a laminating adhesive, (II) bringing a coated side of said substrate into contact with a second substrate to form a multi-layer film, and (III) treating said multi-layer film with a free radical initiator, wherein said laminating adhesive is the reaction product of a tri or higher functional acrylate, an aminofunctional silane, and an ethylenically unsaturated dicarboxylic acid or a monoalkylester thereof, optionally dissolved in a solvent, wherein the tri or higher functional acrylate has a molecular weight of from 100 to 3000, and the aminofunctional silane has the formula wherein0&lE;a&gE;4 R1 is independently hydrogen, alkyl, substituted alkyl, aryl, substituted aryl, arylalkyl, acryl, methacryl, alkylaryl, R2â€”SiRm(OR)3âˆ’m, or R1 is an alkylene linking group having 2 to 12 carbon atoms connected to one or two nitrogen atoms, with the proviso that at least one R1 is a hydrogen atom and at least one R1 is an R2â€”SiRm(OR)3âˆ’m group, where m is 0, 1 or 2, and R is independently an alkyl group having from 1 to 6 carbon atoms; R2 is independently selected from the group consisting of: linear or branched alkylene groups having from 1 to 12 carbon atoms; arylene groups having from 6 to 12 carbon atoms; and linear or branched hydrocarbon groups having from 1 to 16 carbon atoms and at least one alcohol, alcohol ether, ester, amide, urea, thiourea or polyether group.