公开(公告)号：PL311753A1

公开(公告)日：1996-03-18

申请号：PL31175394

申请日：1994-05-20

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 ,  C08J9/00

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：NO954782L

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：FI955641A

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：CA2157604A1

公开(公告)日：1995-03-30

申请号：CA2157604

申请日：1994-09-10

Applicant: BASF AG

Inventor： HENN ROLF ,  SCHERZER DIETRICH ,  BACK WOLF-DIETER ,  WEBER REINHOLD

IPC: C08J9/12 ,  B29C47/00 ,  B29K25/00 ,  B29K105/04 ,  B29L7/00 ,  C08J9/18 ,  C08J11/04 ,  C08J11/06 ,  C08K5/3415 ,  C08K5/34

Abstract: A process for non-modifying recycling of styrene polymers, comprising the steps: a) melting the possibly finely reduced styrene polymers in an extruder, and b) extruding the melt thus obtained, to which expanding agents and/or the usual additives may be added, in which melting is performed in the presence of 0.01 to 4 wt % in relation to the styrene polymer of bismaleic imides, trismaleic imides and/or maleic imides with more than three imide groups.

公开(公告)号：DE3873886D1

公开(公告)日：1992-09-24

申请号：DE3873886

申请日：1988-11-25

Applicant: BASF AG

Inventor： WEBER REINHOLD ,  WEILBACHER MANFRED DR ,  TATZEL HERMANN ,  ZUERN LUDWIG DR ,  ZETTLER HANS DIETER ,  HINSELMANN KLAUS

IPC: B29C47/00 ,  B29C44/00 ,  B29C44/34 ,  B29C44/50 ,  B29C48/355 ,  B29K25/00 ,  B29K105/04 ,  C08J9/04 ,  C08J9/12 ,  C08L25/04 ,  B29C67/22

Abstract: Foams with high compressive strength (I) are mfd. by extruding a mixt. of a styrene polymer (II), 3-9 wt.% blowing agent (III) comprising 80-100 wt.% CO2 and 0-20 wt.% hydrocarbon or halogenated hydrocarbon which is a gas at room temp. (IV), and the usual additives if required; the mixt. is extruded in a zone with an overpressure of 0.1-2 bar and allowed to set at this pressure. Pref. component (IV) has b.pt. -50 to +15 deg.C. (IV) is, e.g. propane, butane, isobutane, MeCl, EtCl, CCl2F2, etc.; pref., overpressure in the extrusion chamber is 0.4-1.6 bar.

公开(公告)号：DE3829632A1

公开(公告)日：1990-03-15

申请号：DE3829632

申请日：1988-09-01

Applicant: BASF AG

Inventor： ALICKE GERHARD ,  WEBER REINHOLD ,  WEILBACHER MANFRED DR

IPC: C08J9/14 ,  B29C44/34 ,  C08J9/12 ,  C08L25/00 ,  C08L25/04

公开(公告)号：DE3829630A1

公开(公告)日：1990-03-15

申请号：DE3829630

申请日：1988-09-01

Applicant: BASF AG

Inventor： ALICKE GERHARD ,  WEBER REINHOLD ,  WEILBACHER MANFRED DR

IPC: C08J9/12 ,  C08J9/14

公开(公告)号：FR1445380A

公开(公告)日：1966-07-08

申请号：FR29612

申请日：1965-08-27

Applicant: BASF AG

Inventor： CADUS ANTON ,  KAISER OTTO ,  WEBER REINHOLD ,  BENKER KLAUS ,  UHR HERMANN

公开(公告)号：DE19746364A1

公开(公告)日：1999-04-22

申请号：DE19746364

申请日：1997-10-21

Applicant: BASF AG

Inventor： HAHN KLAUS DR ,  ALICKE GERHARD ,  TURZNIK GERHARD DR ,  LOTH WOLFGANG DR ,  WEBER REINHOLD ,  EHRMANN GERD DR ,  DIETZEN FRANZ-JOSEF DR

IPC: C08J9/12 ,  C08L25/06 ,  C08J5/18

公开(公告)号：DE59306046D1

公开(公告)日：1997-05-07

申请号：DE59306046

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

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.