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    Multistage polymer composition and method of use
    8.
    发明申请
    Multistage polymer composition and method of use 审中-公开
    多级聚合物组成及使用方法

    公开(公告)号：US20070286833A1

    公开(公告)日：2007-12-13

    申请号：US11805796

    申请日：2007-05-24

    申请人： Kathleen Keller ,  Kimberly Kosto ,  Alan Nakatani ,  Miao Wang ,  Fanwen Zeng

    发明人： Kathleen Keller ,  Kimberly Kosto ,  Alan Nakatani ,  Miao Wang ,  Fanwen Zeng

    IPC分类号： A61K8/72

    CPC分类号： C08L51/003 ,  A61K8/8152 ,  A61K8/8158 ,  A61K2800/594 ,  A61Q5/06 ,  C08F265/04 ,  C08F265/06 ,  C08L2666/02

    摘要： There is provided a multistage polymer that comprises (a) at least one soft polymer having glass transition temperature of 40° C. or lower, and (b) at least one hard polymer having glass transition temperature higher than 40° C., wherein the glass transition temperature of said hard polymer is at least 10° C. higher than the glass transition temperature of said soft polymer, wherein the weight ratio of said hard polymer to said soft polymer is from 1.01:1 to 100:1, and wherein said multistage polymer, after exposure to liquid water followed by drying at temperatures below 100° C., shows maximum thermal transition temperature in an atmosphere of 0% relative humidity that differs by 20° C. or less from the maximum thermal transition temperature in an atmosphere of 75% relative humidity. Also provided are an aqueous latex comprising such a multistage polymer, a composition comprising a powder comprising such a multistage polymer, a solution comprising such a multistage polymer, and a method of styling hair comprising applying such a multistage polymer to the hair.

    摘要翻译： 提供了一种多级聚合物，其包含（a）至少一种具有40℃或更低的玻璃化转变温度的软聚合物和（b）至少一种玻璃化转变温度高于40℃的硬聚合物，其中 所述硬聚合物的玻璃化转变温度比所述软质聚合物的玻璃化转变温度高至少10℃，其中所述硬聚合物与所述软质聚合物的重量比为1.01:1至100:1，并且其中所述 多级聚合物在暴露于液态水后在低于100℃的温度下干燥，显示出在0％相对湿度的气氛中的最大热转变温度，其与气氛中的最大热转变温度相差20℃或更低 75％的相对湿度。 还提供了包含这种多级聚合物的水性胶乳，包含这种多级聚合物的粉末的组合物，包含这种多级聚合物的溶液，以及将这种多级聚合物施用于头发的方法。