| 摘要 |
<p>A photocurable organopolysiloxane composition with improved adhesive bonding strength which comprises (a) an organopolysiloxane having, at least one group represented by the general formula [CH2=CR<1>-CO-O-(CH2)a-SiR2-O]b(X)c(R)3-b-cSi-R<2>-, in which R<1> is a hydrogen atom or a methyl group, each R is a monovalent hydrocarbon group, X is a hydrolyzable group, R<2> is an oxygen atom or a divalent hydrocarbon group, the subscript a is 1, 2 or 3, the subscript b is 1, 2 or 3 and the subscript c is 0, 1 or 2 with the proviso that b+c is 2 or 3, bonded to the silicon atom forming the siloxane linkage of the organopolysiloxane; (b) an organosilane compound represented by the general formula (R<3>O)3-w(R<3>)wSi-R<4>-Z, in which R<3> is a monovalent hydrocarbon group having 1 to 9 carbon atoms, the subscript w is zero or 1, R<4> is a divalent hydrocarbon group having 1 to 8 carbon atoms and Z is a group selected from groups of the formula -NH-Y, groups of the formula -NR<3>2 and N-morpholino group, R<3> having the same meaning as defined above and Y being a hydrogen atom, a substituted or unsubstituted monovalent hydrocarbon group or a group represented by the general formula -CO-O-R<4>-O-CO-CR<5>=CH2, in which R<4> has the same meaning as defined above and R<5> is a hydrogen atom or a monovalent hydrocarbon group having 1 to 8 carbon atoms, or a partial hydrolysis product thereof; and (c) a photoinitiator.</p> |
