| 发明名称 |
PH-REGULATED POLYAMIDE POWDER FOR COSMETIC APPLICATIONS |
| 摘要 |
Polyamide powders for cosmetic applications are described which have a pH between 4.0 and 7.0 by applying a buffer system, desirably of naturally occurring acids, such as a phosphate or citrate buffer system. The polyamide powders have an average particle diameter generally from 1 to 400 µm and may be produced by a precipitation method or an anionic solution polymerization.
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| 申请公布号 |
CA2413767(C) |
申请公布日期 |
2011.11.01 |
| 申请号 |
CA20022413767 |
申请日期 |
2002.12.10 |
| 申请人 |
DEGUSSA AG |
发明人 |
RENNERS, HOLGER;SCHIFFER, THOMAS;CHRISTOPH, WOLFGANG;BAUMANN, FRANZ-ERICH;MUGGE, JOACHIM |
| 分类号 |
A61K8/72;A61K8/88;A61K8/02;A61K8/19;A61K8/24;A61K8/30;A61K8/36;A61K8/365;A61K8/96;A61Q1/12;A61Q19/00;C08G69/46;C08J3/12;C08J3/14;C08K3/00;C08K5/00;C08L77/00 |
主分类号 |
A61K8/72 |
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