申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP2280040A1
公开(公告)日:2011-02-02
Provided are an organopolysiloxane that exhibits good dispersion stability within not only organic oil agents but also cosmetic materials that contain a powder, and is able to produce a cosmetic material that exhibits excellent skin affinity, an organopolysiloxane that does not impart a sticky feeling, and exhibits excellent skin affinity and skin adhesion, and a cosmetic material including such an organopolysiloxane. The organopolysiloxane is represented by formula (1) below:
in which R1 represents a hydrocarbon group such as an alkyl group, R2 represents a group represented by formula (3) or formula (4) below:
in which either R4 represents a specific hydrocarbon group and R5 represents a hydrogen atom or a specific hydrocarbon group, or alternatively, at least one of R4 and R5 represents a hydroxyalkyl group, and
A represents a group containing an organosilyl group or organosiloxane residue.
本发明提供了一种有机聚硅氧烷,该有机聚硅氧烷不仅在有机油剂中,而且在含有粉末的化妆品材料中都具有良好的分散稳定性,并且能够生产出具有优异皮肤亲和性的化妆品材料;一种不会产生粘腻感,并且具有优异皮肤亲和性和皮肤粘附性的有机聚硅氧烷;以及一种包括这种有机聚硅氧烷的化妆品材料。有机聚硅氧烷用下式(1)表示:
其中 R1 代表烃基,如烷基,R2 代表下式(3)或式(4)所代表的基团:
其中 R4 代表一个特定的烃基,R5 代表一个氢原子或一个特定的烃基,或者 R4 和 R5 中至少有一个代表羟烷基,以及
A 代表含有有机硅基团或有机硅氧烷残基的基团。