公开(公告)号：CA2547753A1

公开(公告)日：2005-06-30

申请号：CA2547753

申请日：2004-12-08

Applicant: BASF AG

Inventor： PATWARDHAN DARSHAN ,  NGUYEN-KIM SON ,  WOOD CLAUDIA ,  SCHUH GERD ,  MATHAUER KLEMENS

IPC: C08F220/00 ,  A61K8/72 ,  A61K8/81 ,  A61Q5/00 ,  A61Q5/02 ,  A61Q5/06 ,  A61Q19/00 ,  C08F220/04 ,  C08F220/06 ,  C08F220/18 ,  C08F220/34 ,  C08F226/06

Abstract: The invention concerns ampholytic polymers containing molar excess of anionogenic and/or anionic groups, polyelectrolytic complexes containing suc h 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：CA2552231A1

公开(公告)日：2005-07-28

申请号：CA2552231

申请日：2005-01-13

Applicant: BASF AG

Inventor： NGUYEN KIM SON ,  SIGNORI VITTORIA ,  WOOD CLAUDIA ,  WINTER GABI ,  SCHUH GERD

IPC: C08F220/00 ,  A61K8/22 ,  A61K8/81 ,  A61Q5/04 ,  A61Q5/06 ,  A61Q5/08 ,  A61Q5/10 ,  C08F220/18

Abstract: 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, whereb y 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-valu e of the polymer is less than or equal to 35. The invention also relates to th e use of said polymers in preparations used, especially, in cosmetics and oral hygiene.

公开(公告)号：DE102004002650A1

公开(公告)日：2005-08-11

申请号：DE102004002650

申请日：2004-01-16

Applicant: BASF AG

Inventor： MUELLER GABI ,  NGUYEN-KIM SON ,  WOOD CLAUDIA ,  SIGNORI VITTORIA ,  SCHUH GERD

IPC: A61K8/22 ,  A61K8/81 ,  A61Q5/04 ,  A61Q5/06 ,  A61Q5/08 ,  A61Q5/10 ,  C08F220/00 ,  C08F220/18 ,  C08F20/18 ,  A61K7/00 ,  A61K7/11 ,  A61K7/16

Abstract: The present invention relates to polymers obtainable by free-radical polymerization of a) 30 to 99% by weight of tert-butyl acrylate and/or tert-butyl methacrylate as monomer A, b) 1 to 70% by weight of acrylic acid and/or methacrylic acid as monomer B and c) 0 to 12% by weight of a free-radically copolymerizable monomer or a free-radically copolymerizable monomer mixture as monomer C, where at least one of the monomers C produces a homopolymer with a glass transition temperature of less than 30° C., with the proviso that the % by weight add up to 100, where the K value of the polymers is between 27 and 38 and where the polymerization is carried out in the presence of a regulator if the K value of the polymers is less than or equal to 35, and to the use of these polymers in preparations for, in particular, cosmetics and oral care and dental care.