公开(公告)号：BR0010993A

公开(公告)日：2002-03-19

申请号：BR0010993

申请日：2000-05-26

Applicant: BASF AG

Inventor： DERSCH ROLF ,  MAAS HEIKO ,  SCHODLER VOLKER

IPC: C08F2/22 ,  C08C19/02 ,  C08F8/00 ,  C08F8/04 ,  C08F236/04 ,  C09D1/04 ,  C09D5/00 ,  C09D109/00

Abstract: The present invention relates to a process for hydrogenating ethylenically unsaturated double bonds in polymers P by reacting an aqueous dispersion of at least one polymer P with hydrogen in the presence of at least one hydrogenation catalyst comprising at least one transition metal selected from rhodium and/or ruthenium and at least one nonionic phosphorus compound capable of forming a coordinative compound with the transition metal, which comprises incorporating the hydrogenation catalyst into the aqueous dispersion of the polymer P without adding a solvent. The present invention also relates to the aqueous dispersions of the hydrogenated polymers P obtainable by this process and to coating compositions comprising such dispersions.

公开(公告)号：BR0211347A

公开(公告)日：2004-09-21

申请号：BR0211347

申请日：2002-07-17

Applicant: BASF AG

Inventor： DISTLER DIETER ,  SCHODLER VOLKER ,  LEMAN TITUS ,  STEINMACHER THOMAS

IPC: D21H19/36 ,  D21H19/58 ,  D21H19/60 ,  D21H25/14 ,  D21H19/44

Abstract: A paper coating slip containing a mineral pigment and an aqueous polymer dispersion as a binder, wherein the polymer dispersion is obtainable by emulsion polymerization of ethylenically unsaturated compounds (monomers) and the paper coating slip gels at above 35° C., i.e. the viscosity of the paper coating slip at from 35 to 60° C. is at least twice the viscosity at 30° C.

公开(公告)号：BRPI0508701A

公开(公告)日：2007-08-07

申请号：BRPI0508701

申请日：2005-03-17

Applicant: BASF AG

Inventor： SCHODLER VOLKER ,  SCHMIDT DANIEL ,  WEISS AXEL

IPC: C08J9/28

公开(公告)号：BR0212868A

公开(公告)日：2004-09-14

申请号：BR0212868

申请日：2002-09-30

Applicant: BASF AG

Inventor： GASCHLER WOLFGANG ,  SCHODLER VOLKER ,  MANDERS LAMBERTUS ,  WIRTH THOMAS ,  NER HUBERTUS KR

IPC: C08F2/22 ,  C08F2/38 ,  C08F212/00 ,  C08F212/08 ,  C08F236/00 ,  C08F236/10 ,  C08F236/06 ,  C08F291/00

Abstract: A process for preparing an aqueous styrene-butadiene polymer dispersion by free-radical aqueous emulsion polymerization of a monomer mixture M containing from 40 to 80% by weight of styrene as monomer M1, from 20 to 60% by weight of butadiene as monomer M2, and from 0 to 40% by weight, based on 100% by weight of monomers, of ethylenically unsaturated comonomers M3 other than styrene and butadiene by a monomer feed technique in the presence of from 0.05 to 0.5% by weight, based on 100% by weight of monomers, of at least one hydrocarbon HC having 6 to 20 carbon atoms, which is selected from compounds which on abstraction of a hydrogen atom form a pentadienyl radical or a 1-phenylallyl radical and from alpha-methylstyrene dimer comprises including at least 30% of the hydrocarbon HC in the initial charge to the polymerization vessel and supplying the remainder of the hydrocarbon HC to the polymerization reaction in the course of that reaction.

公开(公告)号：BRPI0414844A

公开(公告)日：2006-11-21

申请号：BRPI0414844

申请日：2004-10-02

Applicant: BASF AG

Inventor： BIRKERT OLIVER ,  BLUM RAINER ,  BRAIG VOLKER ,  CHAMP SIMON ,  DISTLER DIETER ,  LEYRER REINHOLD J ,  SCHODLER VOLKER ,  KOCH OLIVER

IPC: D21H11/08 ,  D21H17/29 ,  D21H17/33 ,  D21H17/37 ,  D21H17/67 ,  D21H21/10 ,  D21H21/16 ,  D21H21/18 ,  D21H21/52 ,  D21H23/04

Abstract: Paper, board and cardboard are produced by adding (i) at least one retention aid and (ii) ionic, water-insoluble, uncrosslinked, organic microparticles which have an average particle size of less than 500 nm and a content of polymerized ionic monomers of less than 1% by weight or water-insoluble, uncrosslinked, organic microparticles having an average particle size of less than 500 nm and a content of polymerized ionic monomers of not more than 10% by weight, which are obtainable by polymerizing the monomers in the presence of silica, waterglass, bentonite and/or mixtures thereof, to a paper stock and draining the paper stock over a wire.

公开(公告)号：BR0212875A

公开(公告)日：2004-10-13

申请号：BR0212875

申请日：2002-09-30

Applicant: BASF AG

Inventor： GASCHLER WOLFGANG ,  SCHODLER VOLKER ,  MANDERS LAMBERTUS ,  WIRTH THOMAS ,  NER HUBERTUS KR

IPC: C08F2/38 ,  C08F212/08 ,  C08F220/04 ,  C08F220/44 ,  C08F236/06 ,  C08F236/10 ,  C09D5/02 ,  C09D109/06 ,  C09D109/08 ,  C09D125/10 ,  D21H19/58 ,  C08F291/00 ,  D21H17/35

Abstract: A process for preparing an aqueous styrene-butadiene polymer dispersion by free-radical aqueous emulsion polymerization of a monomer mixture M comprising styrene, butadiene, and if desired up to 30% by weight, based on 100% by weight of monomers, of ethylenically unsaturated comonomers other than styrene and butadiene; in a polymerization vessel by a monomer feed technique in the presence of a regulator system containing, based on 100% by weight of monomers, from 0.02 to 0.5% by weight of at least one hydrocarbon HC having from 6 to 20 carbon atoms, selected from compounds which on abstraction of a hydrogen atom form a pentadienyl radical or 1-phenylallyl radical, and alpha-methylstyrene dimer, and from 0.3 to 2% by weight of an organic compound S containing at least one SH group wherein at least 30%, preferably at least 50%, in particular at least 80%, and with particular preference the entirety (or >95%) of hydrocarbon HC is included in the initial charge to the polymerization vessel.