Patent ID: 6013643
Filing Date: 2000-01-11
Classification: C08K

Abstract:
A mildew resistant organopolysiloxane composition comprising:(A) 100 parts by weight of an organopolysiloxane represented by the general formula (1):HO--(SiR.sup.1.sub.2 O).sub.n --H (1)wherein R.sup.1 is independently an unsubstituted or substituted monovalent hydrocarbon group with 1 to 10 carbon atoms, and n is a number such that said organopolysiloxane has a viscosity at 25.degree. C. of 25 to 500,000 cSt, an organopolysiloxane represented by the general formula (2): ##STR12## wherein R.sup.1 and n are the same as in the general formula (1), R.sup.2 is an alkyl group having 1 to 4 carbon atoms, and m is 0 or 1, or a mixture thereof;(B) 0.1 to 30 parts by weight of a silane compound represented by the general formula (3):R.sup.3.sub.a SiX.sub.4-a ( 3)wherein R.sup.3 represents the same group as R.sup.1 represents, X is a hydrolyzable group, and a is 0, 1 or 2, a partially hydrolyzed product of said silane compound, or a mixture thereof;(C) 0.1 to 5 parts by weight of a triazolyl group-containing compound represented by the general formula (4):Y--CR.sup.4 R.sup.5 --CR.sup.6 R.sup.7 --Z (4)wherein R.sup.4 and R.sup.5 are independently a hydrogen atom or an substituted or unsubstituted monovalent hydrocarbon group, R.sup.6 and R.sup.7 are independently an alkoxyl group, a hydrogen atom or an alkyl group, Y is a hydroxyl group or a nitrile group, and Z is a triazolyl group; and(D) 0.001 to 2 parts by weight of bis(2-pyridylthio-1-oxide) zinc salt.