Patent ID: 8101683

Claim:
A curable emulsion composition composed of 30 to 70 parts by mass of an emulsion A and 30 to 70 parts by mass of an emulsion B described below which are mixed together at time of use, wherein a ratio of [number-average particle size of dispersed particles in emulsion A]/[number-average particle size of dispersed particles in emulsion B] is within a range from 0.4 to 2.0, the emulsion A comprises components (a) to (e) described below and having a number-average particle size measured by a dynamic light scattering method of 300 to 1,000 nm: (a) 100 parts by mass of an organopolysiloxane I represented by formula (1) shown below: wherein each R 1 independently represents an unsubstituted or substituted monovalent hydrocarbon group of 1 to 10 carbon atoms, provided that at least two R 1 groups are alkenyl groups, each of n, m and p represents a positive number, and q represents a number within a range from 0 to 10, provided that n, m, p and q are numbers that yield a viscosity at 25° C. for the organopolysiloxane I of 30 to 10,000 mPa·s, (b) 1 to 50 parts by mass of an organohydrogenpolysiloxane I comprising at least three hydrogen atoms bonded directly to silicon atoms within each molecule, represented by formula (2) shown below: wherein each R 2 independently represents an unsubstituted or substituted monovalent hydrocarbon group of 1 to 10 carbon atoms or a hydrogen atom, provided that at least three R 2 are hydrogen atoms, each of r, s and t represents a positive number, and u represents a number within a range from 0 to 10, provided that r, s, t and u are numbers that yield a viscosity at 25° C. for the organohydrogenpolysiloxane I of 5 to 2,000 mPa·s, (c) 0.5 to 10 parts by mass of a nonionic surfactant, (d) 1 to 20 parts by mass of a polyvinyl alcohol, and (e) water, and the emulsion B comprises components (f) to (j) described below and having a number-average particle size measured by a dynamic light scattering method of 300 to 1,000 nm: (f) 100 parts by mass of an organopolysiloxane II represented by formula (3) shown below: wherein each R 3 independently represents an unsubstituted or substituted monovalent hydrocarbon group of 1 to 10 carbon atoms, provided that at least two R 3 groups are alkenyl groups, each of v, w and x represents a positive number, and y represents a number within a range from 0 to 10, provided that v, w, x and y are numbers that yield a viscosity at 25° C. for the organopolysiloxane II of 30 to 10,000 mPa·s, (g) a platinum-based complex, in an amount that provides from 0.001 to 0.05 parts by mass of elemental platinum, (h) 0.5 to 10 parts by mass of a nonionic surfactant, (i) 1 to 20 parts by mass of a polyvinyl alcohol, and (j) water.