Patent ID: 6316545
Filing Date: 2001-11-13
Classification: C08J

Abstract:
An oil-in-water aqueous emulsion composition of an organopolysiloxane compound which comprises:(A) 100 parts by weight of an organopolysiloxane compound having a viscosity of at least 10,000 mm.sup.2 /s at 25.degree. C. and expressed by the average unit formulaR.sup.1.sub.a SiO.sub.(4-a)/2,in which the groups denoted by R.sup.1 are, each independently from the others, a monovalent hydrocarbon group having 1 to 20 carbon atoms and the subscript a is a positive number in the range from 1.8 to 2.2;(B) from 0.1 to 10 parts by weight of a fatty acid amidoamine compound of the formulaR.sup.3 --CO--NR.sup.4 --(CH.sub.2).sub.m --NR.sup.4.sub.2,in which R.sup.3 is a monovalent hydrocarbon group having 15 to 19 carbon atoms, each R.sup.4 is, independently from the others, a hydrogen atom or a monovalent hydrocarbon group having 1 to 5 carbon atoms and the subscript m is a positive integer of 2, 3 or 4;(C) from 0.05 to 5 parts by weight of an amino acid;(D) from 0.05 to 10 parts by weight of a polyoxyalkylene-modified organopolysiloxane compound having a molecular weight not exceeding 3000 and expressed by the average unit formulaR.sup.2.sub.b R.sup.5.sub.c SiO.sub.(4-b-c)/2,in which the groups denoted by R.sup.2 are, each independently from the others, a monovalent hydrocarbon group having 1 to 20 carbon atoms, the groups denoted by R.sup.5 are, each independently from the others, a polyoxyalkylene-substituted alkyl group of the formula--(C.sub.d H.sub.2d)--O--(C.sub.2 H.sub.4 O).sub.e --(C.sub.3 H.sub.6 O).sub.f --R.sup.6,R.sup.6 being a hydrogen atom, a monovalent hydrocarbon group having 1 to 20 carbon atoms or an acyl group having 2 to 20 carbon atoms, the subscript d being a positive integer of 2 to 15, the subscript e being a positive integer of at least 3 and the subscript f being 0 or a positive integer, the subscript b is a positive number in the range from 1.0 to 2.5 and the subscript c is a positive number in the range from 0.005 to 1.2 with the proviso that b+c is in the range from 1.5 to 2.8; and(E) from 10 to 300 parts by weight of water as a dispersion medium of the components (A) to (D);wherein components (B) and (C) together form at least some fatty acid amidoamine-amino acid salt, andwherein droplets in the emulsion have an average diameter in the range from 0.5 to 20 .mu.m.