公开(公告)号：DE102006056201A1

公开(公告)日：2007-06-28

申请号：DE102006056201

申请日：2006-11-29

Applicant: BASF AG

Inventor： DOBRAWA RAINER ,  WIDMAIER RALF ,  SCHUPP EBERHARD ,  SCHNELL KLAUS ,  MEISTER MARTIN

IPC: C08F226/06 ,  C08F2/06 ,  C08F218/04 ,  C08F220/00

Abstract: In the production of vinyl-lactam copolymers by free radical polymerization of water-soluble N-vinyl-lactam(s) and hydrophobic comonomer(s) in an organic solvent in the presence of an initiator under reflux conditions, the condensate formed in the reflux is recycled into the polymerization mixture from below.

公开(公告)号：CA2626457A1

公开(公告)日：2007-05-10

申请号：CA2626457

申请日：2006-10-25

Applicant: BASF AG

Inventor： HERRERA TABOADA LIDCAY ,  JAHNEL WOLFGANG ,  WIDMAIER RALF ,  MATHAUER KLEMENS ,  MAURI ANTONIETTA ,  WEGMANN LUDGER ,  NEUBECKER KARIN ,  KHVOROST ALEXANDER

IPC: C08F283/06 ,  C10L3/00 ,  C11D3/37

Abstract: Processes for preparing graft polymers and their use for inhibiting gas hydrates

公开(公告)号：DE502005001494D1

公开(公告)日：2007-10-25

申请号：DE502005001494

申请日：2005-04-14

Applicant: BASF AG

Inventor： CHRISSTOFFELS LYSANDER ,  WIDMAIER RALF ,  STEIN STEFAN ,  TORRES LLOSA JOSE MARIA ,  GARCIA CASTRO IVETTE

IPC: C08F26/10 ,  C08F2/10 ,  C08F226/10 ,  C09J5/00 ,  C21D1/60

公开(公告)号：DE102006056205A1

公开(公告)日：2007-06-28

申请号：DE102006056205

申请日：2006-11-29

Applicant: BASF AG

Inventor： DOBRAWA RAINER ,  WIDMAIER RALF ,  SCHUPP EBERHARD ,  SCHNELL KLAUS ,  STRUBE KARL-HERMANN

IPC: C08F226/06 ,  C08F2/06 ,  C08F218/04 ,  C08F220/00

Abstract: A method for the production of vinyl-lactam copolymers (I) by radical polymerisation of water-soluble N-vinyl-lactams (NVL) and hydrophobic comonomers in refluxing organic solvent in presence of initiators, involves adding NVL to the reflux.

公开(公告)号：DE102006056203A1

公开(公告)日：2007-06-28

申请号：DE102006056203

申请日：2006-11-29

Applicant: BASF AG

Inventor： DOBRAWA RAINER ,  WIDMAIER RALF ,  SCHUPP EBERHARD ,  SCHNELL KLAUS

IPC: C08F226/06 ,  C08F2/06 ,  C08F218/04 ,  C08F220/00

Abstract: A method for the production of vinyl-lactam copolymers (I) by radical polymerisation of water-soluble N-vinyl-lactams (NVL) and hydrophobic comonomers in refluxing organic solvent in presence of initiators, involves distilling off some of the solvent after 90-99 wt% conversion of the NVL and then continuing the polymerisation.

公开(公告)号：DE102006055851A1

公开(公告)日：2007-06-28

申请号：DE102006055851

申请日：2006-11-27

Applicant: BASF AG

Inventor： DOBRAWA RAINER ,  WIDMAIER RALF ,  SCHUPP EBERHARD ,  SCHNELL KLAUS

IPC: C08F226/06 ,  C08F2/06 ,  C08F218/04 ,  C08F220/00

Abstract: In the production of vinyl-lactam copolymers by free radical polymerization of water-soluble N-vinyl-lactam(s) and hydrophobic comonomer(s) in an organic solvent in the presence of an initiator under reflux conditions, the initiator is introduced into the polymerization mixture from below.

公开(公告)号：DE502004003485D1

公开(公告)日：2007-05-24

申请号：DE502004003485

申请日：2004-06-02

Applicant: BASF AG

Inventor： FLORES MIGUEL ANGEL ,  BARTSCH MICHAEL ,  BAUMANN ROBERT ,  HADERLEIN GERD ,  JUNGKAMP TIM ,  SCHEIDEL JENS ,  LUYKEN HERMANN ,  SIEGEL WOLFGANG ,  MEYER CHRISTA ,  WIDMAIER RALF

IPC: C07C37/60 ,  C07C37/11 ,  C07C39/15

Abstract: The invention is a process for preparing tetraalkyl-substituted biphenol which comprises reacting a 2,4- or 2,6-dialkyl substituted phenol in which the alkyl groups contain 1 to 6 carbon atoms with a peroxidase enzyme in the presence of a peroxide in an aqueous medium to yield a tetraalkyl-substituted biphenol by oxidative coupling of the 2,4- or 2,6-dialkyl substituted phenol, or yielding a tetra-alkyl substituted quinone, and reducing the quinone to obtain a tetraalkyl-substituted biphenol. The invention further includes a process for preparing a tetraaryl-substituted biphenol in which the aryl groups contain 6 to 10 carbon atoms which comprises racting a 2,4 or 2,6 diarylphenol with a peroxidase enzyme to yield a tetraaryl-substituted biphenol. A process for reducing a tetraalkyl-substituted quinone to corresponding tetraalkyl-substituted biphenol which comprises reducing the quinone with a phenol in an aqueous medium at a temperature of about 60° to 120° C. is also included.

公开(公告)号：DE102005053066A1

公开(公告)日：2007-05-10

申请号：DE102005053066

申请日：2005-11-04

Applicant: BASF AG

Inventor： BOUILLO NATHALIE ,  PIEROBON MARIANNA ,  WIDMAIER RALF ,  DOBRAWA RAINER ,  MEYER KATHRIN ,  LANGE RONALD FRANS MARIA

IPC: C09K23/52 ,  A23L29/00 ,  C08F2/06 ,  C08F26/06

Abstract: The use of copolymers obtained by free-radical polymerization of a mixture of i) 30 to 80% by weight of N-vinyllactam, ii) 10 to 50% by weight of vinyl acetate, and iii) 10 to 50% by weight of a polyether, with the proviso that the total of components i), ii) and iii) equals 100% by weight, as solubilizers for slightly water-soluble substances.

公开(公告)号：DE10249798A1

公开(公告)日：2004-05-13

申请号：DE10249798

申请日：2002-10-24

Applicant: BASF AG

Inventor： WIDMAIER RALF ,  SCHNEIDER TANJA ,  MATHAUER KLEMENS ,  BURGHARDT ANDRE

IPC: C08F226/02 ,  C08F265/06 ,  C09J5/00 ,  C09J151/00 ,  C08L39/06 ,  C08F26/00 ,  C08L33/08 ,  C09J133/08 ,  C09J139/06

公开(公告)号：BRPI0517066A

公开(公告)日：2008-09-30

申请号：BRPI0517066

申请日：2005-10-27

Applicant: BASF AG

Inventor： SCHICKER PETRA ,  WIDMAIER RALF ,  MUELLER BETTINA ,  WULFF DIRK ,  GERNERT PETER ,  KORB HARDY

IPC: B01J13/16 ,  C09K23/52 ,  C09K23/56

Abstract: The present invention relates to microcapsule dispersions comprising microcapsules in a hydrophobic solvent, wherein the microcapsules have a capsule core, comprising a water-soluble organic substance, and a capsule shell which is composed essentially of reaction products of polyisocyanates with polyfunctional amines, and also to a process for preparing them and additionally to microcapsules obtainable from the corresponding microcapsule dispersions.