公开(公告)号：CA2461675C

公开(公告)日：2010-09-21

申请号：CA2461675

申请日：2002-09-30

Applicant: BASF AG

Inventor： MANDERS LAMBERTUS ,  WIRTH THOMAS ,  GASCHLER WOLFGANG ,  KROENER HUBERTUS

IPC: C08F2/22 ,  C08F212/08 ,  C08F2/16 ,  C08F2/38 ,  C08F212/00 ,  C08F236/00 ,  C08F236/10

Abstract: The invention relates to a method for producing an aqueous styrene-butadiene polymer dispersion by the radical aqueous emulsion-polymerisation of a monomer mixture M, containing: between 40 and 80 wt. % styrene as monomer M1; between 20 and 60 wt. % butadiene as monomer M2 and between 0 and 40 wt. %, (in relation to l00 wt. % monomers), of ethylenically unsaturated comonomers M3 that differ from styrene and butadiene, according to a monomer feed process in the presence of between 0.05 and 0.5 wt. %, (in relation to l00 wt. % monomers), of at least one hydrocarbon KW comprising between 6 and 20 C atoms, selected from compounds, which form a pentadienyl or a 1-phenylallyl radical during the abstraction of a hydrogen atom, or from .alpha.-methylstyrene dimers. Said method is characterised in that the concentration of the butadiene in the monomer feed is increased by at least 10 wt. % in relation to the monomers in the feed process, for a period of at least 1 % of the entire feed duration, when at least 70 % of the monomers to be polymerised have been fed to the polymerisation reaction.

公开(公告)号：AU2007263813A1

公开(公告)日：2008-01-03

申请号：AU2007263813

申请日：2007-06-19

Applicant: BASF AG

Inventor： GASCHLER WOLFGANG ,  MANDERS LAMBERTUS ,  GUBAYDULLIN ILSHAT

IPC: C08F6/14 ,  C08J3/03

Abstract: A process for preparing an aqueous polymer dispersion using flush water.

公开(公告)号：DE50207217D1

公开(公告)日：2006-07-27

申请号：DE50207217

申请日：2002-09-30

Applicant: BASF AG

Inventor： GASCHLER WOLFGANG ,  SCHAEDLER VOLKER ,  MANDERS LAMBERTUS ,  WIRTH THOMAS ,  KROENER HUBERTUS

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

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.

公开(公告)号：AT329945T

公开(公告)日：2006-07-15

申请号：AT02779444

申请日：2002-09-30

Applicant: BASF AG

Inventor： GASCHLER WOLFGANG ,  SCHAEDLER VOLKER ,  MANDERS LAMBERTUS ,  WIRTH THOMAS ,  KROENER HUBERTUS

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.

公开(公告)号：BR0212879A

公开(公告)日：2004-10-13

申请号：BR0212879

申请日：2002-09-30

Applicant: BASF AG

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

IPC: C08F2/38 ,  C08F212/08 ,  C08F236/06

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 selected from compounds having 6 to 20 carbon atoms which on abstraction of a hydrogen atom form a pentadienyl radical or a 1-phenylallyl radical and from alpha-methylstyrene dimer comprises supplying the monomers to be polymerized to the polymerization reaction over the course of 3 hours.

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.

公开(公告)号：BR0212869A

公开(公告)日：2004-09-14

申请号：BR0212869

申请日：2002-09-30

Applicant: BASF AG

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

IPC: C08F2/22 ,  C08F2/16 ,  C08F2/38 ,  C08F212/00 ,  C08F236/00 ,  C08F236/10 ,  C08F212/08

公开(公告)号：DE10148497A1

公开(公告)日：2003-04-17

申请号：DE10148497

申请日：2001-10-01

Applicant: BASF AG

Inventor： MANDERS LAMBERTUS ,  WIRTH THOMAS ,  GASCHLER WOLFGANG ,  KROENER HUBERTUS

IPC: C08F2/38 ,  C08F212/08 ,  C08F236/06

Abstract: The invention relates to a method for producing an aqueous styrene-butadiene polymer dispersion by carrying out a radical aqueous emulsion polymerization of a monomer mixture M containing: 40 to 80 wt. % of styrene depicted as Monomer M1; 20 to 60 wt. % of butadiene depicted as monomer M2, and; 0 to 40 wt. %, with regard to 100 wt. % of the monomers, of ethylenically unsaturated comonomers M3 that differ from styrene and butadiene. The polymerization is carried out according to a monomer feeding method in the presence of 0.05 to 0.5 wt. %, with regard to 100 wt. % of the monomers, of at least one hydrocarbon KW selected among compounds having 6 to 20 C atoms that form a pentadienyl radical or a 1-phenylallyl radical when a hydrogen atom is abstracted, and the alpha -methylstyrene dimer. The inventive method is characterized in that the monomers to be polymerized are introduced within three hours of the polymerization reaction.

公开(公告)号：DE10148494A1

公开(公告)日：2003-04-17

申请号：DE10148494

申请日：2001-10-01

Applicant: BASF AG

Inventor： GASCHLER WOLFGANG ,  SCHAEDLER VOLKER ,  MANDERS LAMBERTUS ,  WIRTH THOMAS ,  KROENER HUBERTUS

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

Abstract: The invention relates to a method for producing an aqueous styrene-butadiene polymer dispersion by the radical aqueous emulsion-polymerisation of a monomer mixture M, containing: between 40 and 80 wt. % styrene as monomer M1; between 20 and 60 wt. % butadiene as monomer M2 and between 0 and 40 wt. %, (in relation to l00 wt. % monomers), of ethylenically unsaturated comonomers M3 that differ from styrene and butadiene, according to a monomer feed process in the presence of between 0.05 and 0.5 wt. %, (in relation to l00 wt. % monomers), of at least one hydrocarbon KW comprising between 6 and 20 C atoms, selected from compounds, which form a pentadienyl or a 1-phenylallyl radical during the abstraction of a hydrogen atom, or from alpha -methylstyrene dimers. Said method is characterised in that at least 30 % of the hydrocarbon KW is already present in the polymerisation vessel and the residual quantity of the hydrocarbon KW is fed to the polymerisation reaction during the course of the latter.

公开(公告)号：DE10046930A1

公开(公告)日：2002-04-18

申请号：DE10046930

申请日：2000-09-21

Applicant: BASF AG

Inventor： SCHAEDLER VOLKER ,  MANDERS LAMBERTUS ,  ETTL ROLAND ,  WIRTH THOMAS

IPC: C08F2/38 ,  C08F212/08 ,  C08F236/10 ,  D21H19/58 ,  C08F236/06 ,  C08F220/42

Abstract: A method for the production of aqueous styrene-butadiene polymer dispersions by radical emulsion polymerisation (monomer addition method) of a mixture of styrene, butadiene and up to 30 wt% other olefinic monomers, in which a regulator system comprising 0.02-0.4 wt% terpinols and 0.5-2 wt% organic compound (S) with SH group(s) is added during polymerisation. Independent claims are also included for (a) aqueous polymer dispersions obtained by this method; (b) paper coating materials containing inorganic pigment(s), 5-20 parts by weight (pts. wt.) polymer dispersion as above and 0.1-5 pts. wt. conventional additives (all based on 100 pts. wt. pigment).