公开(公告)号：CZ9503111A3

公开(公告)日：1996-04-17

申请号：CZ311195

申请日：1994-05-20

Applicant: BASF AG

Inventor： CALLENS JULIEN N R ,  BIESEN ALFONS J S ,  WOLF BERNARDO DR ,  ALICKE GERHARD ,  WEBER REINHOLD ,  DIETZEN FRANZ JOSEF DR ,  HAHN KLAUZ DR

IPC: C08J9/12

CPC classification number: C08J9/127 ,  C08J9/122 ,  C08J2203/12 ,  C08J2325/08 ,  Y10T428/249954 ,  Y10T428/249977

公开(公告)号：CZ311195A3

公开(公告)日：1996-04-17

申请号：CZ311195

申请日：1994-05-20

Applicant: BASF AG

Inventor： CALLENS JULIEN N R ,  BIESEN ALFONS J S ,  WOLF BERNARDO DR ,  ALICKE GERHARD ,  WEBER REINHOLD ,  DIETZEN FRANZ JOSEF DR ,  HAHN KLAUZ DR

IPC: C08J9/12

Abstract: PCT No. PCT/EP94/01631 Sec. 371 Date Nov. 21, 1995 Sec. 102(e) Date Nov. 21, 1995 PCT Filed May 20, 1994 PCT Pub. No. WO94/28058 PCT Pub. Date Dec. 8, 1994Extruded foam boards produced using halogen-free blowing agents from a styrene polymer thermoplastic matrix having a Vicat softening temperature VST B 50 of at most 100 DEG and a melt index MVI 200/5 of at least 5 ml/10 min are at least 20 mm, preferably more than 50 mm and in particular from 80 to 200 mm, thick. Preferred blowing agents for producing the foam boards are carbon dioxide alone, as well as mixtures of carbon dioxide and ethanol and/or dimethyl ether.