发明名称 |
NEW PROCESS FOR THE PREPARATION OF INVERSE LATEX OF ACRYLAMIDE-BASED POLYMERS AND COMPOSITION COMPRISING SAID LATEX |
摘要 |
<p>Process for the preparation of a composition comprising an oil phase, an aqueous phase, at least one emulsifying system of water-in-oil (W/O) type, optionally at least one emulsifying system of oil-in-water (O/W) type, in the form of an inverse latex comprising from 20% to 70% by weight and preferably from 25% to 50% by weight of a branched or crosslinked polyelectrolyte, characterized in that the said polyelectrolyte is a copolymer of 2-acrylamido-2-methylpropanesulfonic acid partially or totally salified with acrylamide and optionally one or more monomers chosen from monomers containing a partially or totally salified weak acid function and/or from neutral monomers other than acrylamide, said production process being characterized in that the preparation of said aqueous phase comprises the dissolution in the aqueous medium of solid 2-acrylamido- 2-methyl propanesulfonic acid before neutralization. Cosmetic, dermopharmaceutical or pharmaceutical composition comprising the inverse latex directly obtained by said process.</p> |
申请公布号 |
WO2009053287(A1) |
申请公布日期 |
2009.04.30 |
申请号 |
WO2008EP63876 |
申请日期 |
2008.10.15 |
申请人 |
SOCIETE D'EXPLOITATION DE PRODUITS POUR LES INDUSTRIES CHIMIQUES SEPPIC;SCOTT BADER COMPANY LIMITED;MALLO, PAUL;BRAUN, OLIVIER;GUY, FRANCOIS;BONNARDEL, AUDREY |
发明人 |
MALLO, PAUL;BRAUN, OLIVIER;GUY, FRANCOIS;BONNARDEL, AUDREY |
分类号 |
C08F220/56;C08F2/32;C08L33/26 |
主分类号 |
C08F220/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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