公开(公告)号：DE19647599A1

公开(公告)日：1998-05-20

申请号：DE19647599

申请日：1996-11-18

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  HAHN KLAUS DR ,  BATSCHEIDER KARL-HEINZ ,  WITT MICHAEL DR ,  WAGNER BERNHARD DR ,  HUSEMANN WOLFRAM DR

IPC: C08F6/00 ,  C08F6/24

Abstract: The invention relates to a method for drying water-containing styrol polymerizates, in which the particles are treated with an aqueous salt solution.

公开(公告)号：DE19548311A1

公开(公告)日：1997-06-26

申请号：DE19548311

申请日：1995-12-22

Applicant: BASF AG

Inventor： LOEFFLER ACHIM DR ,  SCHERZER DIETRICH DR ,  BATSCHEIDER KARL-HEINZ ,  HAHN KLAUS DR ,  WITT MICHAEL DR ,  WAGNER BERNHARD DR ,  HUSEMANN WOLFRAM DR

IPC: C08J9/00 ,  C08J9/20 ,  C08L25/04 ,  C08F12/08 ,  C08J9/14

Abstract: In the preparation of expandable styrene polymer beads by polymerising styrene and optionally comonomers in aqueous suspension in the presence of suspension stabilisers and normal styrene-soluble polymerisation catalysts and with addition of a blowing agent, the novelty is that polymerisation is carried out in the presence of 0.1-1.5 mole electrolyte/l water.