Ester solvents derived from 4-carboxy-2-pyrrolidinone formulated into UV-screening cosmetic compositions
申请人:Richard Hervé
公开号:US20100143276A1
公开(公告)日:2010-06-10
Stable UV-screening cosmetic compositions contain at least one ester solvent derived from 4-carboxy-2-pyrrolidinone, of formula (I):
in which:
R
1
is a linear or branched C
1
-C
20
alkyl radical, and
R
2
is a linear or branched C
1
-C
20
alkyl radical optionally containing a C
5
-C
6
ring member, the phenyl radical, the benzyl radical or the phenethyl radical, and at least one liquid fatty phase and at least one lipophilic UV-screening active agent, the at least one ester derivative constituting a solvent for the at least one active agent in the at least one liquid fatty phase and/or constituting an agent for improving the solubility of the at least one active agent in the at least one fatty phase.
稳定的紫外线防护化妆品组合物包含至少一种来自4-羧基-2-吡咯烷酮衍生的酯类溶剂,其化学式为(I):其中:R1是线性或支链烷基,其碳数范围为C1-C20;R2是线性或支链烷基,可选含有C5-C6环成员、苯基、苄基或苯乙基,且其碳数范围为C1-C20;至少含有一种液态脂肪相和至少一种亲脂性紫外线防护活性剂,至少一种酯类衍生物在至少一种液态脂肪相中构成至少一种活性剂的溶剂和/或构成至少一种改善至少一种活性剂在至少一种脂肪相中溶解度的剂。