C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/7204, 400/72
C08L 83/06 (2006.01) C08G 77/06 (2006.01) C08L 83/08 (2006.01) D06M 15/643 (2006.01)
Patent
CA 1326577
ABSTRACT A microemulsion with an average particle size not exceeding 0.15 micrometers of organopolysiloxane composed of trifunctional siloxane units with the formula RSiO3/2 and difunctional siloxane units with the formula R12SiO is characterized by transparency, by excellent mechanical, dilution, and blending stabilities and by an excellent stability against pH variations. The microemulsion is prepared by process comprising the slow addition, to an aqueous emulsion-polymerization catalyst solution, of a crude emulsion prepared from an organotrialkoxysilane having the formula RSi(OR1)3, a cyclic organopolysiloxane having the formula (R12SiO)n, a surfactant, and water. A microemulsion which consists of 30 to 95 mol% trifunctional siloxane units and 70 to 5 mol% difunctional siloxane units is useful as a fiber-treatment agent that can impart slip resistance to fibrous material without stiffening the hand, while at the same time not causing oil spots.
565500
Ona Isao
Ozaki Masaru
Dow Corning Toray Silicone Company Limited
Gowling Lafleur Henderson Llp
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