Patent ID: 6187890
Filing Date: 2001-02-13
Classification: C07F,C08G,C08K,C08L

Abstract:
A curable organopolysiloxane composition, comprising: an addition-crosslinkable organopolysiloxane component, comprising(A) compounds having radicals containing aliphatic carbon--carbon multiple bonds,(B) organopolysiloxanes containing Si-bonded hydrogen atoms, and/or(C) organopolysiloxanes having SiC-bonded radicals containing aliphatic carbon--carbon multiple bonds and Si-bonded hydrogen atoms, and a catalyst component comprising(D) a platinum catalyst selected from the group consisting of(PR.sup.2.sub.3).sub.2 Pt(--C.tbd.C--R.sup.3).sub.2 (III),(R.sup.2.sub.2 P--R.sup.4 --PR.sup.2.sub.2)Pt(--C.tbd.C--R.sup.3).sub.2 (IV)andH--C.tbd.C--R.sup.5 --C.tbd.C--[--Pt(PR.sup.2.sub.3).sub.2 --C.tbd.C--R.sup.5 --C.tbd.C--].sub.e --H (V)whereR.sup.2 may be identical or different and are monovalent, substituted or unsubstituted hydrocarbon radicals having from 1 to 24 carbon atoms, halogen atoms, hydrogen atoms, hydroxy radicals, --CN or --SCN, which are bound to phosphorus either directly or via oxygen, nitrogen or sulfur,R.sup.3 are identical or different monovalent, substituted or unsubstituted hydrocarbon radicals having from 1 to 24 carbon atoms,R.sup.4 are identical or different divalent, substituted or unsubstituted hydrocarbon radicals having from 1 to 14 carbon atoms,R.sup.5 are identical or different divalent, substituted or unsubstituted hydrocarbon radicals having from 1 to 24 carbon atoms, ande is an integer greater than or equal to 1.