公开(公告)号：ES2061914T3

公开(公告)日：1994-12-16

申请号：ES89123423

申请日：1989-12-19

Applicant: BASF AG

Inventor： NIESSNER MANFRED DR ,  WICKEL STEFAN DR ,  HEIDE WILFRIED DR ,  HARTMANN HEINRICH DR

IPC: A61L15/24 ,  A61L15/60 ,  C08F2/10 ,  C08F2/20 ,  C08F2/24 ,  C08F220/04 ,  C08F220/06 ,  C08F290/00 ,  C08F290/04 ,  C08F299/02

公开(公告)号：AT58382T

公开(公告)日：1990-11-15

申请号：AT87105414

申请日：1987-04-11

Applicant: BASF AG

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

IPC: C08F2/32

公开(公告)号：DE3764407D1

公开(公告)日：1990-09-27

申请号：DE3764407

申请日：1987-06-11

Applicant: BASF AG

Inventor： LINHART FRIEDRICH DR ,  DEGEN HANS-JUERGEN DR ,  AUHORN WERNER ,  KROENER MICHAEL DR ,  HARTMANN HEINRICH DR ,  HEIDE WILFRIED DR

IPC: D21H17/23 ,  D21H17/34 ,  D21H17/37 ,  D21H17/47 ,  D21H17/55 ,  D21H23/76

Abstract: Paper, board and cardboard are produced by draining a pulp slurry in the presence of high molecular weight, water-soluble polymers of N-vinylamides as drainage aids, retention agents and flocculants. These polymers are particularly effective in a pulp slurry which has a high content of interfering substances and other phenolic compounds.

公开(公告)号：DE3235527A1

公开(公告)日：1984-03-29

申请号：DE3235527

申请日：1982-09-25

Applicant: BASF AG

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

IPC: C08J3/05 ,  C08K3/26 ,  C08L33/26 ,  C08F6/00 ,  C08F6/24 ,  C08F20/56

公开(公告)号：DE58907102D1

公开(公告)日：1994-04-07

申请号：DE58907102

申请日：1989-12-19

Applicant: BASF AG

Inventor： NIESSNER MANFRED DR ,  WICKEL STEFAN DR ,  HEIDE WILFRIED DR ,  HARTMANN HEINRICH DR

IPC: A61L15/24 ,  A61L15/60 ,  C08F2/10 ,  C08F2/20 ,  C08F2/24 ,  C08F220/04 ,  C08F220/06 ,  C08F290/00 ,  C08F290/04 ,  C08F299/02

公开(公告)号：AT55789T

公开(公告)日：1990-09-15

申请号：AT87108446

申请日：1987-06-11

Applicant: BASF AG

Inventor： LINHART FRIEDRICH DR ,  DEGEN HANS-JUERGEN DR ,  AUHORN WERNER ,  KROENER MICHAEL DR ,  HARTMANN HEINRICH DR ,  HEIDE WILFRIED DR

IPC: D21H17/23 ,  D21H17/34 ,  D21H17/37 ,  D21H17/47 ,  D21H17/55 ,  D21H23/76

公开(公告)号：DE3613081A1

公开(公告)日：1987-10-29

申请号：DE3613081

申请日：1986-04-18

Applicant: BASF AG

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

IPC: C08F2/32 ,  C08F20/54 ,  C08F20/06 ,  C08F20/14

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：DE3312424A1

公开(公告)日：1984-10-11

申请号：DE3312424

申请日：1983-04-07

Applicant: BASF AG

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

IPC: C08F2/18 ,  C08F2/32 ,  C08F2/38 ,  C08F4/04 ,  A61F13/00 ,  B01J20/26 ,  C02F1/56 ,  C08F20/00 ,  C08F20/56 ,  C09D11/02

Abstract: A process for the preparation of bead-form polymers from water-soluble, ethylenically unsaturated monomers by the process of reverse suspension polymerisation, in which an aqueous solution of the monomers is suspended in an inert hydrophobic liquid, and 2,2'-azobis(2-amidinopropane) dihydrochloride and/or 2,2'-azobis(N,N'-dimethyleneisobutyramidine) dihydrochloride as polymerisation initiator and formic acid or water-soluble salts thereof are polymerised therein in the presence of a protective colloid to give bead-form polymers. Polymer beads which are virtually agglomerate-free and have a low residual monomer content are obtained.

公开(公告)号：AT102220T

公开(公告)日：1994-03-15

申请号：AT89123423

申请日：1989-12-19

Applicant: BASF AG

Inventor： NIESSNER MANFRED DR ,  WICKEL STEFAN DR ,  HEIDE WILFRIED DR ,  HARTMANN HEINRICH DR

IPC: A61L15/24 ,  A61L15/60 ,  C08F2/10 ,  C08F2/20 ,  C08F2/24 ,  C08F220/04 ,  C08F220/06 ,  C08F290/00 ,  C08F290/04 ,  C08F299/02

公开(公告)号：DE3366138D1

公开(公告)日：1986-10-16

申请号：DE3366138

申请日：1983-11-24

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

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.