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    • 8. 发明申请
    • Cosmetic Preparations Containing Copolymers of Ethyl Methacrylate and at Least One Monoethylenically Unsaturated Carboxylic Acid
    • 含有甲基丙烯酸乙酯和至少一种单烯属不饱和羧酸的共聚物的化妆品制剂
    • US20080274069A1
    • 2008-11-06
    • US11577672
    • 2005-10-19
    • Gabi WinterMatthias LaubenderClaudia Wood
    • Gabi WinterMatthias LaubenderClaudia Wood
    • A61K8/81C08F226/10A61Q5/06A61Q5/04A61Q5/00
    • C08F220/18A61K8/046A61K8/8147A61K8/8152A61K8/8158A61K8/817A61K8/8182A61Q5/06
    • Copolymers prepared by a process comprising free-radical polymerizing: (a) more than 15 to 40% by weight of at least one monoethylenically unsaturated carboxylic acid; (b) 30 to less than 85% by weight of ethyl methacrylate; and (c) 0 to 50% by weight of at least one additional free-radically polymerizable monomer other than the at least one monoethylenically unsaturated carboxylic acid and ethyl methacrylate; wherein the total amount of (a), (b) and (c) equals 100% by weight; with the proviso that where the process comprises a solution polymerization, (a) consists of acrylic acid and methacrylic acid, and (c) is an ester of (meth)acrylic acid and an aliphatic C8-C18-alcohol, then the ester of (meth)acrylic acid and an aliphatic C8-C18-alcohol is not present in an amount of 5 to 40% by weight; and with the proviso that where (c) is selected from the group consisting of N-vinylpyrrolidone, N-vinylcaprolactam and mixtures thereof; then the N-vinylpyrrolidone, N-vinylcaprolactam or mixture thereof is present in an amount of less than 5% by weight.
    • 通过包括自由基聚合的方法制备的共聚物:(a)大于15至40重量%的至少一种单烯属不饱和羧酸; (b)30至小于85重量%的甲基丙烯酸乙酯; 和(c)0至50重量%的至少一种除了至少一种单烯属不饱和羧酸和甲基丙烯酸乙酯之外的另外的可自由基聚合的单体; 其中(a),(b)和(c)的总量等于100重量% 条件是当方法包括溶液聚合时,(a)由丙烯酸和甲基丙烯酸组成,和(c)是(甲基)丙烯酸和脂族C 8 -C 8烷基酯的酯 然后,(甲基)丙烯酸和脂肪族C 8 -C 18 - 醇的酯不以量 为5〜40重量% 并且条件是其中(c)选自N-乙烯基吡咯烷酮,N-乙烯基己内酰胺及其混合物; 则N-乙烯基吡咯烷酮,N-乙烯基己内酰胺或其混合物的存在量小于5重量%。