| 发明名称 | Water-resistant cosmetic formulations comprising a hydrophobically modified vinylpyrrolidone copolymer | ||
| 摘要 | The present invention relates to the use of copolymers comprising N-vinylpyrrolidone and a hydrophobically modified acrylic acid derivative as agents for improving the water resistance of a cosmetic formulation, and to the use of these copolymers in sunscreen compositions for increasing the sun protection factor, and furthermore the present invention relates to cosmetic formulations comprising these copolymers. | ||
| 申请公布号 | US9364418(B2) | 申请公布日期 | 2016.06.14 |
| 申请号 | US201113519897 | 申请日期 | 2011.01.12 |
| 申请人 | BASF SE | 发明人 | Kessler Veronique;Angel Maximilian;Mathauer Klemens |
| 分类号 | A61Q1/06;A61Q1/10;A61Q17/04;A61K8/81 | 主分类号 | A61Q1/06 |
| 代理机构 | Marshall, Gerstein & Borun LLP | 代理人 | Marshall, Gerstein & Borun LLP |
| 主权项 | 1. A method for improving the water resistance of a cosmetic formulation comprising the step of adding thereto a copolymer comprising a) 60 to 80% by weight of N-vinylpyrrolidone and b) 20 to 40% by weight of a hydrophobically modified acrylic acid derivative, wherein the copolymer comprises more than 99% by weight of N-vinylpyrrolidone and the hydrophobically modified acrylic acid derivative. | ||
| 地址 | Ludwigshafen DE | ||