公开(公告)号：AU652866B2

公开(公告)日：1994-09-08

申请号：AU2834892

申请日：1992-11-13

Applicant: BASF AG

Inventor： HAHN KLAUS ,  KAEMPFER KNUT ,  HINTZ HANS ,  SCHAEFER ANTHONY ,  RIETHUES MICHAEL ,  WITT MICHAEL

IPC: C08J9/12 ,  C08J9/00 ,  C08J9/16 ,  C08J9/18 ,  C08K5/00 ,  C08K5/05 ,  C08K5/06 ,  C08K5/17 ,  C08L25/04 ,  C08L71/00 ,  C08L71/02 ,  C08L25/06 ,  C08K5/10 ,  C08K5/04 ,  C08K5/07

Abstract: The invention relates to expandable styrene polymers containing a) a styrene polymer, b) and at least one carbon dioxide absorber, mixed or copolymerized with the above, in an amount of from 0.01 to 50% by weight, based on the sum of a) and b), and c) a blowing agent or blowing agent mixture in an amount of from 0.5 to 12% by weight, where the blowing agent or blowing agent mixture comprises c1) from 10 to 100% by weight of carbon dioxide and c2) from 0 to 90% by weight of at least one further blowing agent. The invention furthermore relates to the styrene polymers containing a carbon dioxide absorber, to the styrene polymer foams obtainable from the expandable styrene polymers, and to an improved process for impregnating styrene polymers with carbon dioxide-containing blowing agents or blowing agent mixtures.