公开(公告)号：ES2088072T3

公开(公告)日：1996-08-01

申请号：ES92118664

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：DE59106887D1

公开(公告)日：1995-12-21

申请号：DE59106887

申请日：1991-04-25

Applicant: BASF AG

Inventor： WITTENBERG DIETMAR DR ,  HAHN KLAUS DR ,  GUHR UWE DR ,  HINTZ HANS DR ,  O'CALLAGHAN MICHAEL P DR ,  RIETHUES MICHAEL DR

IPC: C08F2/44 ,  C08F2/18 ,  C08J9/00 ,  C08J9/16 ,  C08K5/00 ,  C08K5/01 ,  C08K5/05 ,  C08K5/06 ,  C08K5/36 ,  C08K5/41 ,  C08L25/04 ,  C08L33/00

Abstract: Expandable styrene polymers containing …… a) a styrene polymer, … b) from 0.05 to 3 % by weight, based on a), of water, … c) from 0.001 to 1 % by weight, based on a), of a finely divided organic polymer having a water-absorption capacity of at least 10 g/g, … d) from 0.5 to 8 % by weight, based on a), of a C3- to C6-hydrocarbon, and optionally … e) conventional additives in effective amounts, … are distinguished by good flow properties and a low degree of clumping during prefoaming.

公开(公告)号：AT130332T

公开(公告)日：1995-12-15

申请号：AT91106672

申请日：1991-04-25

Applicant: BASF AG

Inventor： WITTENBERG DIETMAR DR ,  HAHN KLAUS DR ,  GUHR UWE DR ,  HINTZ HANS DR ,  O'CALLAGHAN MICHAEL P DR ,  RIETHUES MICHAEL DR

IPC: C08F2/44 ,  C08F2/18 ,  C08J9/00 ,  C08J9/16 ,  C08K5/00 ,  C08K5/01 ,  C08K5/05 ,  C08K5/06 ,  C08K5/36 ,  C08K5/41 ,  C08L25/04 ,  C08L33/00 ,  C08L25/00

Abstract: Expandable styrene polymers containing …… a) a styrene polymer, … b) from 0.05 to 3 % by weight, based on a), of water, … c) from 0.001 to 1 % by weight, based on a), of a finely divided organic polymer having a water-absorption capacity of at least 10 g/g, … d) from 0.5 to 8 % by weight, based on a), of a C3- to C6-hydrocarbon, and optionally … e) conventional additives in effective amounts, … are distinguished by good flow properties and a low degree of clumping during prefoaming.

公开(公告)号：ES2066087T3

公开(公告)日：1995-03-01

申请号：ES90120352

申请日：1990-10-24

Applicant: BASF AG

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

IPC: C08J9/14 ,  C08F2/18 ,  C08F2/20 ,  C08F2/44 ,  C08F12/08 ,  C08F212/00 ,  C08J9/18 ,  C08J9/20

Abstract: In the preparation of expandable styrene polymers by polymerizing styrene, if desired together with up to 50% by weight of other monomers, in aqueous suspension with addition of a C3- to C6-hydrocarbon as blowing agent and, if desired, conventional additives in effective amounts before, during or after the polymerization, foaming is reduced if the aqueous phase contains from 0.05 to 0.3% by weight of polyvinylpyrrolidone having a K value of from 100 to 150 as protective colloid.

公开(公告)号：AT116346T

公开(公告)日：1995-01-15

申请号：AT90120352

申请日：1990-10-24

Applicant: BASF AG

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

IPC: C08J9/14 ,  C08F2/18 ,  C08F2/20 ,  C08F2/44 ,  C08F12/08 ,  C08F212/00 ,  C08J9/18 ,  C08J9/20 ,  C08L25/04

Abstract: In the preparation of expandable styrene polymers by polymerizing styrene, if desired together with up to 50% by weight of other monomers, in aqueous suspension with addition of a C3- to C6-hydrocarbon as blowing agent and, if desired, conventional additives in effective amounts before, during or after the polymerization, foaming is reduced if the aqueous phase contains from 0.05 to 0.3% by weight of polyvinylpyrrolidone having a K value of from 100 to 150 as protective colloid.

公开(公告)号：AT106917T

公开(公告)日：1994-06-15

申请号：AT90111720

申请日：1990-06-21

Applicant: BASF AG

Inventor： HAHN KLAUS DR ,  GUHR UWE DR ,  HINTZ HANS DR ,  RICHTER ROLF

IPC: C08F2/20 ,  C08F2/38 ,  C08F2/44 ,  C08F12/00 ,  C08F12/08 ,  C08J9/20

Abstract: Bead-form expandable styrene polymers containing a styrene polymer having a mean molecular weight (weight average) of less than 130x103 and a steep high-molecular-weight flank of the molecular-weight distribution curve, and 0.15 to 1.5 mol of a C3- to C6-hydrocarbon as blowing agent, and, if desired, customary additives in effective amounts, are distinguished by a particularly high expansion capacity.

公开(公告)号：DE59001988D1

公开(公告)日：1993-08-26

申请号：DE59001988

申请日：1990-02-26

Applicant: BASF AG

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

IPC: C08F2/18 ,  C08F257/02 ,  C08J9/14 ,  C08J9/16 ,  C08J9/18 ,  C08J9/20 ,  C08L51/00

Abstract: Expandable styrene polymers of from 95 to 99.5% by weight of polystyrene and from 0.15 to 5% by weight of a styrene-soluble styrene/acrylonitrile copolymer having a total content of not less than 0.15% by weight of acrylonitrile, which contain from 3 to 10% by weight of a C3-C6-hydrocarbon and may contain conventional additives, give foams which do not shrink. The said styrene polymers can be prepared by suspension polymerization of a solution of the styrene/acrylonitrile copolymer in styrene.

公开(公告)号：DE4014261A1

公开(公告)日：1991-11-07

申请号：DE4014261

申请日：1990-05-04

Applicant: BASF AG

Inventor： WITTENBERG DIETMAR DR ,  HAHN KLAUS DR ,  GUHR UWE DR ,  HINTZ HANS DR ,  O'CALLAGHAN MICHAEL P DR ,  RIETHUES MICHAEL DR

IPC: C08F2/44 ,  C08F2/18 ,  C08J9/00 ,  C08J9/16 ,  C08K5/00 ,  C08K5/01 ,  C08K5/05 ,  C08K5/06 ,  C08K5/36 ,  C08K5/41 ,  C08L25/04 ,  C08L33/00

Abstract: Expandable styrene polymers containing …… a) a styrene polymer, … b) from 0.05 to 3 % by weight, based on a), of water, … c) from 0.001 to 1 % by weight, based on a), of a finely divided organic polymer having a water-absorption capacity of at least 10 g/g, … d) from 0.5 to 8 % by weight, based on a), of a C3- to C6-hydrocarbon, and optionally … e) conventional additives in effective amounts, … are distinguished by good flow properties and a low degree of clumping during prefoaming.

公开(公告)号：DE3904370A1

公开(公告)日：1990-08-16

申请号：DE3904370

申请日：1989-02-14

Applicant: BASF AG

Inventor： HAHN KLAUS DR ,  GUHR UWE DR ,  HINTZ HANS DR ,  GELLERT ROLAND DR

IPC: C08J9/14 ,  C08F2/18 ,  C08F2/44 ,  C08J9/00 ,  C08J9/16 ,  C08J9/20 ,  C08L25/04

Abstract: Bead-form expandable moulding compositions of high heat resistance contain from 80 to 99 % by weight of a styrene polymer, from 1 to 20 % by weight of poly(2,6-dimethyl)-1,4-diphenyl ether, from 3 to 10 % by weight of a C3-C6-hydrocarbon as blowing agent and optionally conventional additives. They are obtained by suspension polymerisation of a solution of the polyphenylene ether in styrene.

公开(公告)号：ES2083412T3

公开(公告)日：1996-04-16

申请号：ES90120264

申请日：1990-10-23

Applicant: BASF AG

Inventor： HAHN KLAUS DR ,  GUHR UWE DR ,  HINTZ HANS DR ,  HOENL HANS DR

IPC: C08J9/14 ,  C08J9/00 ,  C08J9/16 ,  C08J9/22

Abstract: Expandable styrene polymers which contain from 10 to 90% by weight of a crosslinked styrene-diene copolymer containing from 2 to 45% by weight of the diene, and from 1 to 10% by weight of a C3- to C6-hydrocarbon as blowing agent can be processed to give foams which have high resistance to aromatics.