公开(公告)号：EP1861461B1

公开(公告)日：2008-12-31

申请号：EP06708755.1

申请日：2006-03-14

Applicant: BASF SE

Inventor： MATHAUER, Klemens ,  PIEROBON, Marianna ,  PETSCH, Tobias ,  HEILMANN, Karl-Otto ,  KERBER, Michael ,  BAYER, Robert

IPC: C08L23/04 ,  C08L39/06 ,  C08F226/02 ,  B01D39/00

CPC classification number: C08L23/04 ,  C08L25/06 ,  C08L39/06 ,  C08L2312/00 ,  C08L2666/04

Abstract: The invention relates to a method for removing styrene residual monomers from polystyrene and from blends containing water-insoluble cross-linked polyvinyl pyrrolidone by treating with water. The invention is characterized in that the treatment is carried out on a particle-shaped solid blend.