公开(公告)号：AT42310T

公开(公告)日：1989-05-15

申请号：AT86106760

申请日：1986-05-17

Applicant: BASF AG

Inventor： MESSMER KARLHEINZ DR ,  HENNIG KARL ,  DENZINGER WALTER ,  HETTCHE ALBERT DR ,  TRIESELT WOLFGANG DR ,  RAUBENHEIMER HANS-JUERGEN

IPC: C08F2/00 ,  C08F2/10 ,  C08F2/34 ,  C08F2/36 ,  C08F4/00 ,  C08F4/04 ,  C08F4/28 ,  C08F4/32

公开(公告)号：DE3434138A1

公开(公告)日：1986-03-27

申请号：DE3434138

申请日：1984-09-18

Applicant: BASF AG

Inventor： TSCHANG CHUNG-JI DR ,  MESSMER KARLHEINZ DR ,  DENZINGER WALTER

IPC: C08F218/00 ,  C08F2/12 ,  C08F2/36 ,  C08F2/44 ,  C08F20/00 ,  C08F20/52 ,  C08F26/00 ,  C08F26/10 ,  C08F218/02 ,  C08F218/04 ,  C08F220/00 ,  C08F220/04 ,  C08F220/06 ,  C08F220/10 ,  C08F220/56 ,  C08F226/02 ,  C08F226/10 ,  C08F226/00 ,  B01J20/26 ,  A01N25/10 ,  C12H1/04 ,  B01J39/18

Abstract: Insoluble polymer powders which are only slightly swellable are prepared by polymerization of N-vinylpyrrolidone or a mixture of (a) an N-vinylcarboxamide, acrylamide, methacrylamide, acrylic acid, methacrylic acid, acrylates, methacrylates and/or a vinyl ester and (b) from 0.1 to 10% by weight, based on the total amount of monomers, of, as a crosslinking agent, a compound possessing two or more ethylenically unsaturated double bonds, in a powder bed in the presence of a heat-transfer medium and in the absence of oxygen and polymerization initiators, at from 90 DEG to 220 DEG C., the powder state being maintained, the reaction mass being circulated and the heat-transfer medium evaporated from the polymerization zone. The resulting polymers are used as adsorbents, as formulation assistants for crop protection agents or as ion exchangers.

公开(公告)号：DE3065385D1

公开(公告)日：1983-11-24

申请号：DE3065385

申请日：1980-10-10

Applicant: BASF AG

Inventor： MESSMER KARLHEINZ DR ,  STEDEFEDER JOACHIM DR ,  FISCHER HERMANN DR ,  HARTMANN HEINRICH DR

IPC: C08F2/00 ,  C08F2/06 ,  C08F2/14 ,  C08F2/34

公开(公告)号：DE4213514A1

公开(公告)日：1993-10-28

申请号：DE4213514

申请日：1992-04-24

Applicant: BASF AG

Inventor： NIESSNER MANFRED DR ,  VOELKER DIETER ,  SCHOEPKE HOLGER DR ,  LEITNER HEINZ ,  MESSMER KARLHEINZ DR ,  HARTMANN JUERGEN DR

IPC: C08F8/44 ,  D06M11/38 ,  D06M15/233 ,  D06M15/263 ,  D06M15/285 ,  D06M15/327

公开(公告)号：DE3568443D1

公开(公告)日：1989-04-06

申请号：DE3568443

申请日：1985-09-17

Applicant: BASF AG

Inventor： TSCHANG CHUNG-JI DR ,  MESSMER KARLHEINZ DR ,  DENZINGER WALTER

IPC: C08F218/00 ,  C08F2/12 ,  C08F2/36 ,  C08F2/44 ,  C08F20/00 ,  C08F20/52 ,  C08F26/00 ,  C08F26/10 ,  C08F218/02 ,  C08F220/00 ,  C08F220/10 ,  C08F220/56 ,  C08F226/06 ,  C08F226/10

Abstract: Insoluble polymer powders which are only slightly swellable and are based on N-vinylpyrrolidone are prepared by polymerization of N-vinylpyrrolidone or a mixture of this with copolymerizable monomers and from 0.1 to 10% by weight, based on the total amount of monomers, of a crosslinking agent in a powder bed in the presence of a heat-transfer medium, which is inert to the reactants, and in the absence of oxygen and polymerization initiators, at from 90 DEG to 220 DEG C., while maintaining the powder state, circulating the reaction mass and evaporating the heat-transfer medium from the polymerization zone. The resulting insoluble polymers which are only slightly swellable are used as adsorbents or formulation assistants for fertilizers and crop protection agents.

公开(公告)号：DE3519013A1

公开(公告)日：1986-11-27

申请号：DE3519013

申请日：1985-05-25

Applicant: BASF AG

Inventor： MESSMER KARLHEINZ DR ,  HENNIG KARL ,  DENZINGER WALTER ,  HETTCHE ALBERT DR ,  TRIESELT WOLFGANG DR ,  RAUBENHEIMER HANS-JUERGEN

IPC: C08F2/00 ,  C08F2/10 ,  C08F2/34 ,  C08F2/36 ,  C08F4/00 ,  C08F4/04 ,  C08F4/28 ,  C08F4/32 ,  C08F20/04 ,  C08F20/42 ,  C08F20/44 ,  C08F22/02 ,  C11D3/37 ,  D21H3/46

Abstract: Water-soluble polymer powders are prepared by polymerizing water-soluble ethylenically unsaturated monomers in a powder bed in the presence of polymerization initiators and water while maintaining the powder state, removing the heat of polymerization by distilling off water and circulating the reaction mixture, by a process in which water-insoluble organic peroxides which are liquid at 20 DEG C. are used alone or as a mixture with up to 50% by weight, based on the initiator mixture, of water-soluble, organic azo initiators and/or water-insoluble solid peroxy-containing compounds, as polymerization initiators.

公开(公告)号：DE3364096D1

公开(公告)日：1986-07-17

申请号：DE3364096

申请日：1983-11-28

Applicant: BASF AG

Inventor： HENNIG KARL ,  MESSMER KARLHEINZ DR ,  HARTMANN HEINRICH DR

IPC: C08F2/38 ,  C08F20/06 ,  C11D3/37 ,  D21H19/58 ,  D21H1/28

公开(公告)号：AT20353T

公开(公告)日：1986-06-15

申请号：AT83111890

申请日：1983-11-28

Applicant: BASF AG

Inventor： HENNIG KARL ,  MESSMER KARLHEINZ DR ,  HARTMANN HEINRICH DR

IPC: C08F2/38 ,  C08F20/06 ,  C11D3/37 ,  D21H1/28