公开(公告)号：EP1694725A1

公开(公告)日：2006-08-30

申请号：EP04803649.5

申请日：2004-12-08

申请人： BASF Aktiengesellschaft

发明人： NGUYEN-KIM, Son ,  MATHAUER, Klemens ,  WOOD, Claudia ,  SCHUH, Gerd ,  PATWARDHAN, Darshan

IPC分类号： C08F220/00

CPC分类号： C08F220/18 ,  A61K8/8158 ,  A61K2800/5428 ,  A61Q3/00 ,  A61Q5/006 ,  A61Q5/02 ,  A61Q5/06 ,  A61Q5/065 ,  A61Q5/12 ,  A61Q19/00 ,  A61Q19/10 ,  C08F220/06

摘要： The invention concerns ampholytic polymers containing molar excess of anionogenic and/or anionic groups, polyelectrolytic complexes containing such an ampholytic copolymer, cosmetic and pharmaceutical agents containing at least one such copolymer or polyelectrolytic complex, as well as the use of said copolymers and polyelectrolytic complexes.

公开(公告)号：EP1709093A1

公开(公告)日：2006-10-11

申请号：EP05700874.0

申请日：2005-01-13

申请人： BASF Aktiengesellschaft

发明人： WINTER, Gabi ,  NGUYEN KIM, Son ,  WOOD, Claudia ,  SIGNORI, Vittoria ,  SCHUH, Gerd

IPC分类号： C08F220/00 ,  C08F220/18

CPC分类号： C08F220/18 ,  A61K8/22 ,  A61K8/8152 ,  A61K8/8158 ,  A61K8/8182 ,  A61Q5/06

摘要： The invention relates to polymers which can be obtained by radical polymerisation of a) 30 - 99 wt.- % tert.-butyl acrylate and/or tert.-butyl methacrylate as monomers A, b) 1 - 70 wt.- % acrylic acid and/or methacrylic acid as monomers B and c) 0 - 12 wt.- % of a radically copolymerisiable monomer or a radically copolymerisiable monomer mixture as monomer C, whereby at least one of the monomers C provides forms a homopolymer having a glass transition temperature of less than 30 °C, under the proviso that the total wt. % is 100. The K-value of the polymers is between 27 and 38 and polymerisation is carried out in the presence of a regulator when the K-value of the polymer is less than or equal to 35. The invention also relates to the use of said polymers in preparations used, especially, in cosmetics and oral hygiene.