公开(公告)号：DE19651299A1

公开(公告)日：1998-06-18

申请号：DE19651299

申请日：1996-12-10

Applicant: BASF AG

Inventor： JUENGLING STEPHAN DR ,  MC KEE GRAHAM EDMUND DR ,  WARZELHAN VOLKER DR ,  GAUSEPOHL HERRMANN DR ,  FISCHER MICHAEL DR

IPC: C08L55/00 ,  C08F2/00 ,  C08F20/00 ,  C08F20/12 ,  C08F287/00 ,  C08F297/02 ,  C08L53/00 ,  C08F220/18 ,  C08L33/04 ,  C08J5/00 ,  C08J5/18 ,  D01F6/36

Abstract: A process is disclosed for producing reaction mixtures including homopolymers, copolymers or block copolymers, and for producing homopolymers, copolymers and block copolymers containing acrylates and/or methacrylates. The process is characterised in that olefinically unsaturated compounds which are not derived from acrylate or methacrylate are used as solvents or as solvent components.

公开(公告)号：DE19614293A1

公开(公告)日：1997-10-16

申请号：DE19614293

申请日：1996-04-11

Applicant: BASF AG

Inventor： GAUSEPOHL HERRMANN DR ,  FISCHER WOLFGANG DR ,  LOTH WOLFGANG DR

IPC: C08F2/00 ,  C08F279/02 ,  C08F287/00 ,  C08F297/04 ,  C08F279/00 ,  C08L25/12 ,  C08L53/02

Abstract: Described is a method for the production in two stages of, in particular, impact modified styrene and styrene-acrylonitrile polymer moulding materials in solution. In a first reaction zone in which at least the last section in the direction of flow consists of a reactor, in particular a tubular reactor without back-mixing, a styrene-butadiene block copolymer is produced by anionic polymerization, the active chain ends optionally being coupled and/or stripped off. Immediately afterwards, the copolymer is fed to a second reaction zone where a styrene homopolymer or copolymer is produced by radical polymerization or copolymerization, respectively.