Patent ID: 8202932

Claim:
A polymerizable composition for bonding a low surface energy substrate to a similar or different substrate, comprising: a) at least one free-radically polymerizable monomer component, and b) an effective amount of an initiator system for initiating polymerization of the free-radically polymerizable monomer, said initiator system comprising: alkylated borohydride or tetraalkyl borane metal or ammonium salts comprising formula VI below: wherein R 10 is C 1 -C 10 alkyl, R 11 and R 12 , which may be the same or different, are selected from the group consisting of H, D, C 1 -C 10 alkyl, C 3 -C 10 cycloalkyl, phenyl, phenyl-substituted C 1 -C 10 alkyl and phenyl-substituted C 3 -C 10 cycloalkyl, provided that any two of R 10 -R 12 may optionally be part of a carbocyclic ring, R 13 is H, D or C 1 -C 10 alkyl, and M + is a metal ion or a quaternary ammonium ion comprising formula VII below wherein R 14 -R 17 , which may be the same or different, are selected from the group consisting of C 1 -C 10 alkyl, C 2 -C 10 alkenyl, C 3 -C 10 cycloalkyl, aryl, C 1 -C 10 alkylaryl, aryl C 1 -C 10 alkyl and aryl C 1 -C 10 cycloalkyl, provided that any two of R 14 -R 17 may be part of an optionally unsaturated carbocyclic ring; and c) a carrier comprising an amino silane or an amino silane capped polymer.