公开(公告)号：DE3366104D1

公开(公告)日：1986-10-16

申请号：DE3366104

申请日：1983-09-16

Applicant: BASF AG

Inventor： HEIDE WILFRIED DR ,  SCHMITT KARL ,  HARTMANN HEINRICH DR

IPC: C08J3/05 ,  C08K3/26 ,  C08L33/26 ,  C08J3/06

公开(公告)号：DE3244274A1

公开(公告)日：1984-05-30

申请号：DE3244274

申请日：1982-11-30

Applicant: BASF AG

Inventor： SCHNEIDER KURT DR ,  HEIDE WILFRIED DR ,  HARTMANN JUERGEN DR ,  HARTMANN HEINRICH DR

IPC: C08F20/00 ,  C07C67/00 ,  C07C213/00 ,  C07C213/02 ,  C07C219/08 ,  C07C231/00 ,  C07C231/12 ,  C07C231/22 ,  C07C231/24 ,  C07C233/38 ,  C08F20/34 ,  C08F20/52 ,  C07C93/193 ,  C07C103/64 ,  C08F20/56

Abstract: Concentrated aqueous solutions of quaternization products of tertiary aminoalkyl esters or tertiary aminoalkylamides of acrylic or methacrylic acid are prepared by reaction of the corresponding esters or amides with an alkylating agent in a water-soluble ketone as solvent, by a process wherein, in order to isolate the quaternization product, an amount of water is added to the reaction mixture such that two phases form, and the lower aqueous phase, which contains the quaternization product in solution, is separated from the upper phase, which contains the ketone and residual alkylating agent.

公开(公告)号：DE3220114A1

公开(公告)日：1983-12-01

申请号：DE3220114

申请日：1982-05-28

Applicant: BASF AG

Inventor： HEIDE WILFRIED DR ,  HARTMANN HEINRICH DR ,  BURKERT HANS DR ,  BUENSCH HELLMUT DR

IPC: C08F2/20 ,  C08F2/32 ,  C08F4/04 ,  C08F4/34 ,  C08F20/06 ,  C08F20/20 ,  C08F20/56 ,  C08F265/00 ,  C08F265/02 ,  C08F265/10

Abstract: The invention relates to a process for the preparation of bead-form polymers from water-soluble, ethylenically unsaturated monomers by the process of reverse suspension polymerisation. The polymerisation initiators used according to the invention are, based on the monomers, mixtures of 0.01 to 1% by weight of 4,4'-azobis(4-cyanovaleric acid) and 2,2'-azobis(2-amidinopropane) dihydrochloride and/or 2,2'-azobis(N,N'-dimethylisobutyramidine) dihydrochloride. Bead-form polymers having a low residual monomer content and high flocculation activity are obtained.

公开(公告)号：DE3926120A1

公开(公告)日：1991-02-14

申请号：DE3926120

申请日：1989-08-08

Applicant: BASF AG

Inventor： NIESSNER MANFRED DR ,  GRUND NORBERT DR ,  HEIDE WILFRIED DR ,  HARTMANN HEINRICH DR

IPC: B01D21/01 ,  C02F1/50 ,  C02F1/54 ,  C02F1/56 ,  C02F11/00 ,  C02F11/14 ,  C08F2/32 ,  C08F6/00 ,  C08F6/24 ,  C09K3/00

Abstract: Process for the preparation of finely divided polymer powders by polymerisation of water-soluble monomers in the aqueous phase of a water-in-oil emulsion in the presence of water-in-oil emulsifiers and polymerisation initiators, removal of water from the resulting water-in-oil polymer suspension by an azeotropic method and isolation of the suspended finely divided polymer powder, wherein either the polymerisation of the water-soluble monomers is carried out in the presence of 0.1 to 10% by weight, based on the monomers used in the polymerisation, of protective colloids or the protective colloids are added to the water-in-oil polymer suspension after the end of the polymerisation. The polymerisation is preferably carried out in the presence of a wetting agent. The finely divided pulverulent polymers are used as flocculants or thickeners for aqueous systems.

公开(公告)号：DE3861301D1

公开(公告)日：1991-01-31

申请号：DE3861301

申请日：1988-03-18

Applicant: BASF AG

Inventor： REHMER GERD DR ,  NIESSNER MANFRED DR ,  HEIDE WILFRIED DR ,  HARTMANN HEINRICH DR ,  PETERS KARL-CLEMENS DR

IPC: C08F2/00 ,  C08F2/32 ,  C08F257/00

Abstract: Polymers in bead form are prepared from water-soluble ethylenically unsaturated monomers by a reverse suspension polymerization of a liquid in the presence of polymerization initiators and protective colloids obtainable by grafting polymers (A) containing (a) aromatic monovinyl monome from 40 to 100% by weight (b) C3-6 monoethylenically unsaturated carboxylic acid and/or maleic anhydride from 0 to 60% by weight (c) other monoethylenically unsaturated monomers from 0-20% by weight, as copolymerized units with the proviso that the sum of the weight (a) to (c) is always 100 and the polymer (A) has a molecular weight (number average) from 500 to 20,000 and a hydrogenation iodine number from 1.3 to 51 with a fixed monomer mixture at given concentration levels.

公开(公告)号：DE3766149D1

公开(公告)日：1990-12-20

申请号：DE3766149

申请日：1987-04-11

Applicant: BASF AG

Inventor： HEIDE WILFRIED DR ,  HARTMANN HEINRICH DR ,  VAMVAKARIS CHRISTOS DR

IPC: C08F2/32

Abstract: Bead polymers are prepared by reverse suspension polymerization by a process in which an aqueous solution of water-soluble ethylenically unsaturated monomers are polymerized in an aliphatic hydrocarbon using an inorganic suspending agent based on a modified finely divided mineral and, in addition, from 0.1 to 5% by weight, based on the monomers used, of a nonionic surfactant, in the presence of a polymerization initiator, with the formation of a water-in-oil polymer suspension.

公开(公告)号：DE3709921A1

公开(公告)日：1988-10-06

申请号：DE3709921

申请日：1987-03-26

Applicant: BASF AG

Inventor： REHMNER GERD DR ,  NIESSNER MANFRED DR ,  HEIDE WILFRIED DR ,  HARTMANN HEINRICH DR ,  PETERS KARL-CLEMENS DR

IPC: C08F2/00 ,  C08F2/32 ,  C08F257/00 ,  C08F20/04 ,  C08F20/34 ,  C08F20/54 ,  C08F22/02 ,  C08F22/36 ,  C08F26/00

Abstract: Polymers in bead form are prepared from water-soluble ethylenically unsaturated monomers by a reverse suspension polymerization of a liquid in the presence of polymerization initiators and protective colloids obtainable by grafting polymers (A) containing (a) aromatic monovinyl monome from 40 to 100% by weight (b) C3-6 monoethylenically unsaturated carboxylic acid and/or maleic anhydride from 0 to 60% by weight (c) other monoethylenically unsaturated monomers from 0-20% by weight, as copolymerized units with the proviso that the sum of the weight (a) to (c) is always 100 and the polymer (A) has a molecular weight (number average) from 500 to 20,000 and a hydrogenation iodine number from 1.3 to 51 with a fixed monomer mixture at given concentration levels.

公开(公告)号：DE3635489A1

公开(公告)日：1988-04-21

申请号：DE3635489

申请日：1986-10-18

Applicant: BASF AG

Inventor： BARTHOLD KLAUS DR ,  BAUR RICHARD DR ,  CREMA STEFANO CARLO ,  LASOWSKI JUERGEN DR ,  OPPENLAENDER KNUT DR ,  HEIDE WILFRIED DR

IPC: C08F8/00 ,  C08F8/14 ,  C08F8/30 ,  C08G65/26 ,  C08G65/332 ,  C08G81/02 ,  C10G33/04 ,  C08F220/26 ,  C08G18/63

公开(公告)号：DE3334226A1

公开(公告)日：1985-04-11

申请号：DE3334226

申请日：1983-09-22

Applicant: BASF AG

Inventor： MARTISCHIUS FRANZ-DIETER DR ,  HEIDE WILFRIED DR

IPC: C08J3/03 ,  C08L33/26 ,  C08F20/18 ,  C08F20/56 ,  C08J3/06 ,  C08K3/30 ,  C08K3/32 ,  C08K5/09 ,  C08K5/17 ,  C08K5/51

公开(公告)号：DE50014971D1

公开(公告)日：2008-03-27

申请号：DE50014971

申请日：2000-11-10

Applicant: BASF AG

Inventor： HEIDE WILFRIED DR ,  WICKEL STEFAN DR ,  DANIEL THOMAS DR ,  NILGES JOACHIM ,  HOFMANN JUERGEN

IPC: C08F2/10 ,  B01J14/00 ,  B01J19/00 ,  B01J19/20 ,  C08F2/01 ,  C08F220/00