Title:
【発明の名称】マレイン酸のモノアルキルエステル又はマレイン酸及びその塩とビニルアルキルエーテルとの共重合体の製造法
Document Type and Number:
Japanese Patent JP2956794
Kind Code:
B2
Abstract:
The preparation of copolymers of monoalkyl maleates or maleic acid and salts thereof and vinyl alkyl ethers by free-radical copolymerisation of maleic anhydride and vinyl alkyl ethers and subsequent reaction with alkanol or water and optionally metal hydroxides and/or oxides, where the vinyl alkyl ether component is in excess in the reaction mixture in each phase of the polymerisation, the free-radical copolymerisation is carried out in acetone, and the acetone is removed by distillation during or after the esterification or hydrolysis, the polymerisation initiators used being carboxylic acid peroxy esters derived from carboxylic acids having at least 8 carbon atoms. The copolymers obtained are used in cosmetic preparations.
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Inventors:
HARARUTO MAIYAA
AKUSERU ZANAA
HANSUUYURUGEN RAUBENHAIMAA
FURANTSU FUROTSUSHU
AKUSERU ZANAA
HANSUUYURUGEN RAUBENHAIMAA
FURANTSU FUROTSUSHU
Application Number:
JP13391691A
Publication Date:
October 04, 1999
Filing Date:
June 05, 1991
Export Citation:
Assignee:
BEE AA ESU EFU AG
International Classes:
C08F4/32; A61K8/72; A61K8/81; C08F2/06; C08F4/28; C08F4/34; C08F8/12; C08F8/14; C08F16/12; C08F20/02; C08F22/10; C08F216/12; C08F216/18; C08F222/02; C08F222/06; C08F222/16; (IPC1-7): C08F222/06; C08F2/06; C08F4/32; C08F8/12; C08F8/14; C08F216/18; C08F222/02; C08F222/16
Domestic Patent References:
| JP6377906A | ||||
| JP4504896A | ||||
| JP4504871A | ||||
| JP5500383A |
Attorney, Agent or Firm:
Toshio Yano (2 outside)