Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1998-11-17
1999-10-26
Moore, Margaret G.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
516 55, 516 67, 516 72, B01J 1300
Patent
active
059730668
ABSTRACT:
An oil-in-water aqueous organopolysiloxane emulsion suitable as an adjuvant, in particular, in a toiletry preparation such as a hair-care treatment preparation is disclosed by using a unique emulsification system including a quaternary ammonium chloride as a cationic surface active agent, in order to provide a solution for the problem of a dilemma between the use of a C.sub.16 or lower-alkyl quaternary ammonium salt having high emulsification power but exhibiting irritativeness to the human body and the use of a higher-alkyl quaternary ammonium salt having lower emulsification power but exhibiting no irritativeness. The emulsion composition comprises: (A) a high-polymeric organopolysiloxane mixed with and diluted by an organopolysiloxane of a lower viscosity; (B) a quaternary ammonium chloride having 1 or 2 stearyl or behenyl groups; (C) a polyoxyalkylene-modified organopolysiloxane or a polyhydric alcohol as an activity-promoting agent for the component (B); and (D) water each in a specified weight proportion. The emulsion can be prepared by first forming a water-in-oil emulsion from the respective ingredients though with a reduced amount of water, then effecting phase inversion of the emulsion by continued agitation from the water-in-oil emulsion to an oil-in-water emulsion; and diluting the emulsion with an additional amount of water.
REFERENCES:
patent: 3208911 (1965-09-01), Oppliger
patent: 5286476 (1994-02-01), Nanba et al.
patent: 5482703 (1996-01-01), Pings
patent: 5788884 (1998-08-01), Kuwata et al.
Patent Abstracts of Japan, vol. 95, No. 010, Nov. 30, 1995; Pub. No. 07188557.
Ikeda Teruki
Nakazato Morizo
Sakuta Koji
Moore Margaret G.
Shin-Etsu Chemical Co. , Ltd.
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