公开(公告)号：US20080051492A1

公开(公告)日：2008-02-28

申请号：US11832402

申请日：2007-08-01

申请人： Andrea Mitarotonda ,  Arianna Benetti ,  Giuseppe Li Bassi

发明人： Andrea Mitarotonda ,  Arianna Benetti ,  Giuseppe Li Bassi

IPC分类号： C08J3/00 ,  A61K8/06

CPC分类号： C08F220/38 ,  A61K8/064 ,  A61K8/8158 ,  A61K2800/48 ,  A61Q19/00 ,  C08F2/32

摘要： Inverse emulsions, useful in applications such as cosmetics, are those wherein the weight ratio between the aqueous phase and the organic phase is from 4:1 to 2:1 and containing from 20 to 70% by weight of an acrylic polymer comprising monomeric units deriving from: i) 2-acrylamido-2-methylpropanesulfonic acid; ii) at least one cationic acrylic monomer of formula I: wherein R1 is hydrogen or methyl; R2, R3, R4 are, one independently of the others, hydrogen or C1-C4 alkyl; Y is NH or O; A is a C1-C6 alkylene; X is an anion; iii) acrylic or methacrylic acid; iv) at least one polyfunctional monomer, the inverse emulsion being characterized by the fact that in the polymer the monomeric units deriving from 2-acrylamido-2-methylpropanesulfonic acid represent from 1% to 29% molar of the total monomers i), ii) and iii). It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

摘要翻译： 可用于化妆品等应用的反相乳液是水相和有机相之间的重量比为4:1至2:1且含有20至70重量％的包含单体单元的丙烯酸类聚合物 由：i）2-丙烯酰胺基-2-甲基丙磺酸; ii）至少一种式I的阳离子丙烯酸单体：其中R 1是氢或甲基; R 2，R 3，R 4，其中一个独立地为氢或C 1 -C 3 烷基; Y是NH或O; A是C 1 -C 6亚烷基; X是阴离子; iii）丙烯酸或甲基丙烯酸; iv）至少一种多官能单体，反相乳液的特征在于，在聚合物中，衍生自2-丙烯酰胺基-2-甲基丙磺酸的单体单元占总单体i）的1％至29％摩尔，ii） 和iii）。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。