Patent ID: 8278401
Filing Date: 2012-10-02
Classification: C08G,C08L,G03F,H01L

Abstract:
1. A cationically curable barrier composition consisting essentially of: (a) a meta-substituted aromatic epoxy compound having the general structure: in which R R L EP is an epoxy group selected from the group consisting of aliphatic epoxy, glycidyl ether, and cycloaliphatic epoxy, in which the hydrogens on any of the epoxy groups is optionally substituted by one or more alkyl or halogen groups: RF is a reactive functionality selected from the groups consisting of EP, an hydroxyl (—OH), a vinyl ether (—O—CH═CH (b) a cationic inititiator, and (c) one or more epoxy resins selected from the group consisting of bisphenol F diglycidyl ether, novolac glycidyl ethers, polycyclic epoxies, and halogenated glycidyl ethers.