公开(公告)号：DE59005997D1

公开(公告)日：1994-07-14

申请号：DE59005997

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：ES2052080T3

公开(公告)日：1994-07-01

申请号：ES90102190

申请日：1990-02-03

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：AT105574T

公开(公告)日：1994-05-15

申请号：AT90102190

申请日：1990-02-03

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

公开(公告)号：DE59002427D1

公开(公告)日：1993-09-30

申请号：DE59002427

申请日：1990-04-30

Applicant: BASF AG

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

IPC: C08F2/18 ,  C08F283/00 ,  C08F291/02 ,  C08J9/16 ,  C08J9/18 ,  C08J9/20 ,  C08L51/04

Abstract: Expandable styrene polymers comprising a) from 50 to 98% by weight of polystyrene and b) from 2 to 50% by weight of a styrene-soluble elastomer and possibly also containing from 1 to 15% by weight, based on the sum of a) and b), of a low-boiling blowing agent and optionally conventional additives are expanded to give foams having a density of from 0.01 to 0.1 g/cm and increased elasticity. They can be prepared by suspension polymerisation of a styrene solution of the elastomer and addition of a blowing agent.

公开(公告)号：AT85986T

公开(公告)日：1993-03-15

申请号：AT90113835

申请日：1990-07-19

Applicant: BASF AG

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

IPC: C08J9/14 ,  C08F283/00 ,  C08J9/00 ,  C08J9/20 ,  C08L25/06

公开(公告)号：AT84556T

公开(公告)日：1993-01-15

申请号：AT90107704

申请日：1990-04-24

Applicant: BASF AG

Inventor： HAHN KLAUS DR ,  GUHR UWE DR ,  HINTZ HANS DR ,  ROEHRIG KARL HEINZ

IPC: C08J9/14 ,  C08J9/20 ,  C08K3/26 ,  C08K3/30 ,  C08K5/02 ,  C08K5/17 ,  C08K5/3492 ,  C08K13/02 ,  C08L25/02 ,  C08L25/04

公开(公告)号：DE3921148A1

公开(公告)日：1991-01-10

申请号：DE3921148

申请日：1989-06-28

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：DE3915602A1

公开(公告)日：1990-11-15

申请号：DE3915602

申请日：1989-05-12

Applicant: BASF AG

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

IPC: C08F2/18 ,  C08F283/00 ,  C08F291/02 ,  C08J9/16 ,  C08J9/18 ,  C08J9/20 ,  C08L51/04

Abstract: Expandable styrene polymers comprising a) from 50 to 98% by weight of polystyrene and b) from 2 to 50% by weight of a styrene-soluble elastomer and possibly also containing from 1 to 15% by weight, based on the sum of a) and b), of a low-boiling blowing agent and optionally conventional additives are expanded to give foams having a density of from 0.01 to 0.1 g/cm and increased elasticity. They can be prepared by suspension polymerisation of a styrene solution of the elastomer and addition of a blowing agent.

公开(公告)号：ES2078988T3

公开(公告)日：1996-01-01

申请号：ES91106672

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：DE59008132D1

公开(公告)日：1995-02-09

申请号：DE59008132

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.