公开(公告)号：EP3283201A1

公开(公告)日：2018-02-21

申请号：EP16715562.1

申请日：2016-04-12

申请人： BASF SE

发明人： KONRADI, Rupert ,  CEPRAGA, Christina ,  STAUDT, Claudia ,  VON VACANO, Bernhard Ulrich ,  KELLERMEIER, Matthias ,  STENGEL, Peter ,  BAUMANN, Peter ,  MARTY, Laurent ,  KUHN, Jelan ,  SCHAUKSDAT, Sarah-Jane ,  WEGMANN, Ludger ,  BOHRER, Erik

IPC分类号： B01D65/08 ,  B01D69/02 ,  C09D5/00 ,  A01N25/34 ,  A01N37/12 ,  A01N61/00

CPC分类号： B01D67/0088 ,  A01N25/10 ,  A01N25/34 ,  B01D65/08 ,  B01D69/06 ,  B01D69/08 ,  B01D71/28 ,  B01D71/40 ,  B01D71/52 ,  B01D71/80 ,  C08F283/06 ,  C09D5/1668 ,  C09D151/08

摘要： Process for reducing the fouling of a surface O, wherein an aqueous solution S of at least one polymer P comprising styrene and at least one ester E of (meth)acrylic acid and polyethylene oxide in a molar ratio of 0.05:1 to 50:1 is applied to said surface O.

公开(公告)号：EP2643363A1

公开(公告)日：2013-10-02

申请号：EP11843266.5

申请日：2011-11-21

申请人： BASF SE

发明人： FISCHER, Frank ,  BOHRER, Erik ,  MASCHKE, Angelika ,  KOLTER, Karl ,  KERBER, Michael

IPC分类号： C08F26/06 ,  C08F26/10 ,  A61K47/32

CPC分类号： C08F126/06

摘要： Disclosed is a process for the preparation of low-peroxide crosslinked vinyllactam polymer by free-radical polymerization in the presence of at least one organic substance acting as antioxidant. The vinyllactam polymer is water-insolubly crosslinked polyvinylpyrrolidone or vinylpyrrolidone copolymer with vinylimidazole, vinylcaprolactam and/or vinyl acetate. The obtained vinyllactam polymer has low peroxide contents, and the peroxide contents do not increase or increase slightly within a certain time and low residual monomer contents. The obtained vinyllactam polymer is suitable to use in the field of pharmaceutical and food applications.

公开(公告)号：EP2643363B1

公开(公告)日：2017-05-31

申请号：EP11843266.5

申请日：2011-11-21

申请人： BASF SE

发明人： FISCHER, Frank ,  BOHRER, Erik ,  MASCHKE, Angelika ,  KOLTER, Karl ,  KERBER, Michael

IPC分类号： C08F126/06

CPC分类号： C08F126/06

公开(公告)号：EP1799756B1

公开(公告)日：2008-03-05

申请号：EP05790672.9

申请日：2005-10-06

申请人： BASF SE

发明人： BOHRER, Erik ,  FAUL, Dieter ,  GARCIA CASTRO, Ivette ,  GEBHARDT, Norbert ,  HÖSSEL, Peter ,  MENDERA, Peter ,  PINNEKER, Olga ,  POTZOLLI, Bernd ,  STEIN, Stefan ,  STRUBE, Karl-Hermann ,  WIDMAIER, Ralf ,  NEUTZNER, Josef ,  LEHNERT, Simone

IPC分类号： C08K3/18 ,  C08K3/00

CPC分类号： C08K3/18 ,  C08K3/014 ,  C08L39/06

摘要： The invention relates to aqueous solutions of homopolymers and copolymers of N-vinylpyrrolidones, said solutions being physically stabilised by a hydrogen peroxide content of between 100 and 5000 ppm.