公开(公告)号：EP0761728A3

公开(公告)日：1998-06-10

申请号：EP96113236

申请日：1996-08-19

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  WITT MICHAEL DR ,  HAHN KLAUS DR ,  HUSEMANN WOLFRAM DR ,  LOEFFLER ACHIM DR ,  RIETHUES MICHAEL DR

IPC: C08F2/20 ,  C08F2/44 ,  C08J9/00 ,  C08J9/20 ,  C08L25/04

CPC classification number: C08J9/0061 ,  C08J9/20 ,  C08J2325/06 ,  C08J2423/00

Abstract: Verfahren zur Herstellung von perlförmigen expandierbaren Styrolpolymerisaten durch Polymerisation von Styrol, gegebenenfalls unter Mitverwendung weiterer Comonomerer, in wäßriger Suspension in Gegenwart von Suspensionsstabilisatoren und üblicher styrollöslicher Polymerisationskatalysatoren und unter Zusatz eines Treibmittels und 0,01 bis 1 Gew.% eines Polyolefins, welches 1 bis 20 Gew.% Carboxylgruppen enthält.

公开(公告)号：DE59206654D1

公开(公告)日：1996-08-01

申请号：DE59206654

申请日：1992-10-31

Applicant: BASF AG

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

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

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.

公开(公告)号：AT139791T

公开(公告)日：1996-07-15

申请号：AT92118664

申请日：1992-10-31

Applicant: BASF AG

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

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

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.

公开(公告)号：DE4137405A1

公开(公告)日：1993-05-19

申请号：DE4137405

申请日：1991-11-14

Applicant: BASF AG

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

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

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.

公开(公告)号：DE59403492D1

公开(公告)日：1997-09-04

申请号：DE59403492

申请日：1994-02-10

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  HAHN KLAUS DR ,  RIETHUES MICHAEL DR ,  NAEGELE DIETER DR ,  WITT MICHAEL DR ,  HUSEMANN WOLFRAM DR

IPC: C08F2/20 ,  C08F2/44 ,  C08J9/00 ,  C08J9/20 ,  C08K5/00 ,  C08K5/01 ,  C08K5/03 ,  C08L23/06 ,  C08L25/04 ,  C08L25/06 ,  C08L89/00

公开(公告)号：DE4340368A1

公开(公告)日：1995-06-01

申请号：DE4340368

申请日：1993-11-26

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  HENN ROLF DR ,  HAHN KLAUS DR ,  WITT MICHAEL DR ,  HUSEMANN WOLFRAM DR ,  NAEGELE DIETER DR ,  RIETHUES MICHAEL DR ,  MATZKE GUENTER DR

IPC: C08F2/18 ,  C08F2/38 ,  C08F2/44 ,  C08J9/16 ,  C08L25/04 ,  B29B7/60 ,  B29B13/00 ,  B29C44/00 ,  C08F12/08 ,  C08J9/14 ,  C08J9/20 ,  C08K5/01

公开(公告)号：DE4331808A1

公开(公告)日：1995-03-23

申请号：DE4331808

申请日：1993-09-18

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  HENN ROLF DR ,  WITT MICHAEL DR ,  HAHN KLAUS DR ,  RIETHUES MICHAEL DR

IPC: C08J9/16 ,  C08F2/18 ,  C08F2/44 ,  C08J9/20 ,  C08K5/134 ,  C08L25/04 ,  C08K5/13 ,  C08K5/521 ,  C08F12/06

Abstract: Pearl-shaped, expandable styrene polymers contain (a) a styrene polymer; (b) 0.03 to 1.5 % by weight, in relation to (a), of a sterically inhibited phenol homogenously distributed in the styrene polymer and/or applied as a coating on the surface of the styrene polymer; (c) an expanding agent or mixture of expanding agents; and if required (d) effective amounts of usual additives. Also disclosed is a process for producing said polymers, according to which styrene, if required with other comonomers, is polymerised in an aqueous suspension in the presence of suspension stabilisers and usual styrene-soluble polymerisation catalysts, with addition of an expanding agent or mixture of expanding agents, and if required of an effective amount of usual additives and of up to 1.5 % by weight, in relation to styrene and comonomers, of sterically hindered phenols. The thus obtained pearl-shaped, expandable styrene polymers are coated with up to 1.5 % by weight, in relation to the expanding agent-free styrene polymer, of sterically inhibited phenols, provided that the expandable styrene polymers that are homogenously distributed in the styrene polymer and/or applied as a surface coating contain in total 0.03 to 1.5 % by weight of sterically inhibited phenols, in relation to the styrene polymer.

公开(公告)号：DE4321356A1

公开(公告)日：1995-01-05

申请号：DE4321356

申请日：1993-06-26

Applicant: BASF AG

Inventor： NAEGELE DIETER DR ,  RIETHUES MICHAEL DR ,  HAHN KLAUS DR ,  SCHERZER DIETRICH DR

IPC: C08F2/18 ,  C08F2/44 ,  C08J9/16 ,  C08L25/04 ,  C08L25/08 ,  C08F212/08 ,  C08J9/18 ,  C08J9/20 ,  C08J9/232

Abstract: Bead-form, expandable styrene polymers containing a) from 5 to 100% by weight, based on a) and b), of a styrene- alpha -methylstyrene copolymer b) from 0 to 95% by weight, based on a) and b), of polystyrene and/or of a styrene copolymer other than a) where the alpha -methylstyrene content is between 0.003 and 1.2% by weight based on the sum of a) and b), c) from 1 to 10% by weight, based on a) and b), of a C3-C9-hydrocarbon and/or carbon dioxide as blowing agent, and optionally d) conventional additives in effective amounts. fr

公开(公告)号：DE4305697A1

公开(公告)日：1994-09-01

申请号：DE4305697

申请日：1993-02-25

Applicant: BASF AG

Inventor： SCHERZER DIETRICH DR ,  HAHN KLAUS DR ,  RIETHUES MICHAEL DR ,  NAEGELE DIETER DR ,  WITT MICHAEL DR ,  HUSEMANN WOLFRAM DR

IPC: C08F2/20 ,  C08F2/44 ,  C08J9/00 ,  C08J9/20 ,  C08K5/00 ,  C08K5/01 ,  C08K5/03 ,  C08L23/06 ,  C08L25/04 ,  C08L25/06 ,  C08L89/00 ,  C08F12/08

公开(公告)号：DE4038042A1

公开(公告)日：1992-06-04

申请号：DE4038042

申请日：1990-11-29

Applicant: BASF AG

Inventor： HINTZ HANS DR ,  HAHN KLAUS DR ,  GUHR UWE DR ,  RIETHUES MICHAEL DR

IPC: C08J9/14 ,  C08F2/18 ,  C08F2/44 ,  C08J9/00 ,  C08J9/16 ,  C08L25/00 ,  C08L25/04 ,  C08L25/08 ,  C08L25/10

Abstract: Oil-resistant expandable styrene polymers containing …… a) from 10 to 90% by weight of uncrosslinked polystyrene and/or an uncrosslinked styrene copolymer containing at least 50% by weight of copolymerised styrene, … b) from 10 to 90% by weight of a crosslinked styrene polymer which contains at least 0.1% by weight, but less than 2% by weight, of a copolymerised monomer containing at least two olefinic double bonds, … c) from 1 to 10% by weight, based on the sum of a) and b), of a C3- to C6-hydrocarbon as blowing agent, and optionally … d) conventional additives in effective amounts, … where the mixture of a) and b) has a melt flow index MFI (200 DEG C, 5.0 kp) in accordance with DIN 53 735 of between 1 and 20 [g/10 min].