- 专利标题: MULTISTAGE POLYMER COMPOSITION AND METHOD OF USE
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申请号: US17987928申请日: 2022-11-16
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公开(公告)号: US20230082890A1公开(公告)日: 2023-03-16
- 发明人: Kathleen Keller , Kimberly B. Kosto , Alan Isamu Nakatani , Miao Wang , Fanwen Zeng
- 申请人: Rohm and Haas Company
- 申请人地址: US PA Collegeville
- 专利权人: Rohm and Haas Company
- 当前专利权人: Rohm and Haas Company
- 当前专利权人地址: US PA Collegeville
- 主分类号: C08L51/00
- IPC分类号: C08L51/00 ; A61K8/81 ; A61Q5/06 ; C08F265/04 ; C08F265/06
摘要:
A method for styling hair comprises placing the hair in a desired configuration and applying a hair styling composition to the hair. The hair styling composition comprises a powder of a multistage polymer of a soft polymer of Tg 40° C., and at least 10° C. higher than the Tg of the soft polymer wherein the hard polymer forms a complete or partial shell around the soft polymer the weight ratio of hard polymer to soft polymer being 1.01:1 to 2:1. After exposure to liquid water and drying at temperatures below 100° C., a maximum thermal transition temperature of the multistage polymer 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.
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