Patent ID: 6329456
Filing Date: 2001-12-11
Classification: C03C,C04B,C08L,C09D

Abstract:
A coating resin composition comprising:(A) a silica-dispersed oligomer solution of oranosilane prepared by partially hydrolyzing a hydrolyzable organosilane represented by a general formulaR.sup.1.sub.n SiX.sub.4-n (I)wherein R.sup.1 is a homo- or hetero-substituted or non-substituted univalent hydrocarbon group or phenyl group having a carbon number of 1 to 9, n is an integer of 0 to 3, and X is a hydrolyzable functional group, in colloidal silica dispersed in an organic solvent, water or a mixture thereof;(B) an acrylic resin which is a copolymer of:at least one acrylate or methacrylate comonomer represented by a formulaCH.sub.2.dbd.CR.sup.2 (COOR.sup.3) (II)wherein R.sup.2 is a hydrogen atom or a methyl group, and R.sup.3 is a substituted or non-substituted univalent hydrocarbon having a carbon number of 1 to 9;at least one acrylate or methacrylate comonomer represented by the formula (II) wherein R.sup.2 is a hydrogen or a methyl group, and R.sup.3 is an epoxy group, a glycidyl group or a hydrocarbon group containing an epoxy group, a glycidyl group or both; andat least one acrylate or methacrylate comonomer represented by the formula (II) wherein R.sup.2 is a hydrogen atom or a methyl group, and R.sup.3 is a hydrocarbon group containing an alkoxysilyl group or a halogenated silyl group;(C) a curing catalyst; and(D) a polyorganosiloxane which is represented by a mean composition formulaR.sup.4.sub.a Si(OH).sub.b O.sub.(4-a-b)/2 (III)wherein R.sup.4 is a homo- or hetero-substituted or non-substituted univalent hydrocarbon group or phenyl group having a carbon number of 1 to 9, and a and b are numerals satisfying the relationships of 0.2.ltoreq.a.ltoreq.2, 0.0001.ltoreq.b.ltoreq.3, and a+b<4, respectively, and which contains a silanol group in the molecule.