公开(公告)号：ES2099445T3

公开(公告)日：1997-05-16

申请号：ES93912794

申请日：1993-05-26

Applicant: BASF AG

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

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.

公开(公告)号：NO954782D0

公开(公告)日：1995-11-24

申请号：NO954782

申请日：1995-11-24

Applicant: BASF AG

Inventor： CALLENS JULIEN N R ,  BIESEN ALFONS J S VAN ,  WOLFF BERNARDO ,  ALICKE GERHARD ,  WEBER REINHOLD ,  DIETZEN FRANZ-JOSEF ,  HAHN KLAUS

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.

公开(公告)号：FI955641A0

公开(公告)日：1995-11-23

申请号：FI955641

申请日：1995-11-23

Applicant: BASF AG

Inventor： CALLENS JULIEN N R ,  VAN BIESEN ALFONS J S ,  WOLFF BERNARDO ,  ALICKE GERHARD ,  WEBER REINHOLD ,  DIETZEN FRANZ-JOSEF ,  HAHN KLAUS

IPC: C08J9/12 ,  C08J

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.

公开(公告)号：CA2137273A1

公开(公告)日：1993-12-09

申请号：CA2137273

申请日：1993-05-26

Applicant: BASF AG

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

IPC: C08J9/12 ,  C08J9/14 ,  C08L25/06

Abstract: 2137273 9324560 PCTABS00028 A process is disclosed for manufacturing slabs of cellular material having at least 20 mm thickness and at least 50 cm2 cross-section by extrusion of a mixture of a styrene polymer and 1 to 10% by weight of a foaming agent, in relation to the styrene polymer. The process is characterized in that the foaming agent contains at least one ether from the group of the dimethyl, methylethyl and methylvinyl ethers.

公开(公告)号：AU8838991A

公开(公告)日：1992-06-11

申请号：AU8838991

申请日：1991-12-04

Applicant: BASF AG

Inventor： WOLFF BERNARDO ,  HOHWILLER FRIEDER ,  SEYBOLD GUENTHER

IPC: C08J9/14 ,  C08J9/32 ,  C08J9/35 ,  C08K3/36 ,  C08K7/00 ,  C08K7/26 ,  C08L25/02 ,  C08L25/04

Abstract: A composite foam of low thermal conductivity comprises a) 20-80% by volume of silica aerogel particles having a mean diameter of from 0.1 to 20 mm and a density of from 0.08 to 0.40 g/cm3, b) 20-80% by volume of a styrene polymer foam which surrounds the particles of component a) and binds them to one another and has a density of from 0.01 to 0.15 g/cm3, and, if desired, c) conventional additives in effective amounts.