Copolymer based on tert-butyl acrylate or methacrylate
    14.
    发明授权
    Copolymer based on tert-butyl acrylate or methacrylate 失效
    基于丙烯酸叔丁酯或甲基丙烯酸酯的共聚物

    公开(公告)号:US5132417A

    公开(公告)日:1992-07-21

    申请号:US438306

    申请日:1989-11-20

    CPC classification number: A61Q5/06 A61K8/046 A61K8/8152 C08F220/18 C08F226/10

    Abstract: Copolymers based on tert-butyl acrylate and/or tert-butyl methacrylate, having a K value of from 10 to 50 and obtainable by free radical polymerization ofA) from 20 to 90% by weight of tert-butyl acrylate and/or tert-butyl methacrylate,B) from 10 to 60% by weight of N-vinylpyrrolidone andC) from 0 to 30% by weight of a C.sub.1 -C.sub.20 -alkyl acrylate, a C.sub.1 -C.sub.20 -alkyl methacrylate, a C.sub.2 -C.sub.4 -hydroxyalkyl acrylate, a C.sub.2 -C.sub.4 -hydroxyalkyl methacrylate or vinyl acetate or a mixture thereof,are used as film formers in hair setting compositions and compositions for the surface protection of two- or three-dimensional structures.

    Abstract translation: 基于丙烯酸叔丁酯和/或甲基丙烯酸叔丁酯的共聚物,其K值为10至50,可通过A)的20至90重量%的丙烯酸叔丁酯和/或叔丁基丙烯酸酯的自由基聚合获得, 甲基丙烯酸丁酯,B)10-60重量%的N-乙烯基吡咯烷酮和C)0-30重量%的丙烯酸C1-C20烷基酯,甲基丙烯酸C1-C20烷基酯,丙烯酸C2-C4-羟烷基酯 ,甲基丙烯酸C2-C4-羟基烷基酯或乙酸乙烯酯或其混合物用作用于二维或三维结构的表面保护的头发定型组合物和组合物中的成膜剂。

    Microcapsules containing bleaching aids
    18.
    发明授权
    Microcapsules containing bleaching aids 失效
    含有漂白助剂的微胶囊

    公开(公告)号:US5972508A

    公开(公告)日:1999-10-26

    申请号:US962547

    申请日:1997-10-31

    Abstract: The microcapsules containing bleaching agents are obtainable by polymerizing monomer mixtures which comprise5-100% by weight of at least one ethylenically unsaturated carboxylic anhydride (a),0-95% by weight of at least one monoethylenically unsaturated monomer (b) different from the monomers of group (a),0-80% by weight of crosslinking monomers (c) which have at least two nonconjugated monoethylenic double bonds in the molecule, and0-20% by weight of water-soluble monoethylenically unsaturated monomers (d),where the total of components (a) to (d) is 100% by weight. The polymerization takes place in the oil phase of a stable oil-in-water emulsion in the presence of free-radical polymerization initiators, where the temperature of the polymerizing reaction mixture is, where appropriate, increased continuously or periodically during the polymerization. The oil phase contains or consists of the bleaching aid.

    Abstract translation: 含有漂白剂的微胶囊可以通过聚合单体混合物获得,所述单体混合物包含5-100重量%的至少一种烯键式不饱和羧酸酐(a),0-95重量%的至少一种不均匀的单烯属不饱和单体(b) (a)的单体,0-80重量%的在分子中具有至少两个非共轭单烯键双键的交联单体(c)和0-20重量%的水溶性单烯属不饱和单体(d), 其中组分(a)至(d)的总量为100重量%。 在自由基聚合引发剂的存在下,在稳定的水包油乳液的油相中进行聚合,其中聚合反应混合物的温度在适当时在聚合期间连续地或周期性地增加。 油相包含或由漂白助剂组成。

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