Patent ID: 8329816

Claim:
A silicone microemulsion composition comprising: (A) 100 parts by mass of a carboxy-modified organopolysiloxane represented by a general formula [1] shown below, R 2 —(R 1 2 SiO) m (R 2 R 1 SiO) n R 1 2 Si—R 2 [1] wherein each R 1 independently represents an unsubstituted or substituted monovalent hydrocarbon group of 1 to 20 carbon atoms, each R 2 independently represents R 1 or —R 3 COOH, provided that at least one R 2 group represents —R 3 COOH, R 3 represents a divalent hydrocarbon group, m represents a number of 50 to 1,000 and n represents a number of 0 to 20; (B) 25 to 75 parts by mass of a polyether-modified organopolysiloxane represented by a general formula [2] shown below, R 4 —(R 1 2 SiO) o (R 4 R 1 SiO) p R 1 2 Si—R 4 [2] wherein R 1 is as defined above, each R 4 independently represents R 1 or —(CH 2 ) a O(C 2 H 4 O) b (C 3 H 6 O) c R 5 , provided that at least one R 4 group represents —(CH 2 ) a O(C 2 H 4 O) b (C 3 H 6 O) c R 5 , R 5 represents a hydrogen atom, a hydrocarbon group of 1 to 20 carbon atoms or —(CO)—R 6 , R 6 represents a hydrocarbon group of 1 to 10 carbon atoms, o represents a number of 0 to 3, p represents a number of 1 to 3, a represents a number of 2 to 5, b represents a number of 5 to 15, and c represents a number of 0 to 10; (C) 0.1 to 10 parts by mass of an anionic surfactant; and (D) water; wherein an average particle size of emulsion particles is not more than 100 nm.