Photocuring adhesive containing an oligo siloxanyl di(meth)acrylate

摘要

PCT No. PCT/JP92/00203 Sec. 371 Date Dec. 14, 1993 Sec. 102(e) Date Dec. 14, 1993 PCT Filed Feb. 25, 1992 PCT Pub. No. WO93/17078 PCT Pub. Date Sep. 2, 1993.This invention relates to a photocuring adhesive characterized in that a photoinitiator is added to a monomer composition comprising 20 to 50 wt % of the oligosiloxanyl di(meth)acrylate represented by the structural formula (1) shown below, 20 to 60 wt % of a hydrophobic mono (meth)acrylate having a hydrocarbon group containing no less than six carbon atoms in a side chain, and 1 to 80% of a hydrophilic monomer capable of undergoing free radical polymerization: <IMAGE> (1) <IMAGE> R1 and R2 both being either hydrogen or methyl, m1 and m2 being an integer in the range 2 to 5, and n being an integer in the range 5 to 30.