公开(公告)号：CZ9403013A3

公开(公告)日：1995-07-12

申请号：CZ301394

申请日：1993-05-26

Applicant: BASF AG

Inventor： ALICKE GERHARD ,  WEILBACHER MANFRED ,  WOLF BERNARDO ,  HEINEN HARTMUT ,  DIETZEN FRANZ-JOSEF ,  WEBER REINHOLD ,  HAHN MANFRED

IPC: C08J9/12 ,  C08J9/14

CPC classification number: C08J9/149 ,  C08J9/127 ,  C08J9/142 ,  C08J2203/12 ,  C08J2203/14 ,  C08J2325/06 ,  Y10S264/05 ,  Y10S521/91

公开(公告)号：CZ301394A3

公开(公告)日：1995-07-12

申请号：CZ301394

申请日：1993-05-26

Applicant: BASF AG

Inventor： ALICKE GERHARD ,  WEILBACHER MANFRED ,  WOLF BERNARDO ,  HEINEN HARTMUT ,  DIETZEN FRANZ-JOSEF ,  WEBER REINHOLD ,  HAHN MANFRED

IPC: C08J9/12 ,  C08J9/14

Abstract: PCT No. PCT/EP93/01320 Sec. 371 Date Nov. 22, 1994 Sec. 102(e) Date Nov. 22, 1994 PCT Filed May 26, 1993 PCT Pub. No. WO93/24560 PCT Pub. Date Dec. 9, 1993.Process for the production of foam boards having a minimum thickness of 20 mm and a cross-sectional area of at least 50 cm2 by extruding a mixture of the styrene polymer, from 1 to 10% by weight, based on the styrene polymer, of a blowing agent, wherein the blowing agent contains at least one ether from the group consisting of dimethyl ether, methyl ethyl ether and methyl vinyl ether.