Patent ID: 6071987
Filing Date: 2000-06-06
Classification: C08G,C08L

Abstract:
A silicone emulsion composition comprising:(A) 100 parts by weight of a colloidal silica-silicone core/shell material comprising(a) from 80 to 5 wt % of cores comprising a colloidal silica having an average particle diameter of from 4 to 300 nm, and(b) from 20 to 95 wt % of shells comprising a polyorganosiloxane represented by the average compositional formulaR.sup.1.sub.a SiO.sub.(4-a)/2 (I)wherein R.sup.1 's each represent a substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms and ""a"" is a number of from 1.80 to 2.20, provided that from 0.01 to 25% by mole of the R.sup.1 's each is a group containing an ethylenically unsaturated group;(B) a polyorganohydrogensiloxane having per molecule at least two units represented by the general formulaR.sup.2.sub.b H.sub.c SiO.sub.(4-(b+c))2 (II)wherein R.sup.2 's may be the same or different and each represent a substituted or unsubstituted monovalent hydrocarbon group having no ethylenically unsaturated group, b is an integer of from 0 to 2, and c is an integer of 1 or 2, provided that b+c is an integer of from 1 to 3, the amount of the polyorganohydrogensiloxane being such that the number of the silicon-bonded hydrogen atoms contained therein per ethylenically unsaturated group contained in ingredient (A) is from 0.01 to 100;(C) from 1.times.10-6 to 1 part by weight of a curing catalyst;(D) from 1 to 20 parts by weight of an emulsifying agent; and(E) from 50 to 1,000 parts by weight of water.