公开(公告)号：BRPI0513239A

公开(公告)日：2008-04-29

申请号：BRPI0513239

申请日：2005-07-08

Applicant: BASF AG

Inventor： HAHN KLAUS ,  EHRMANN GERD ,  RUCH JOACHIM ,  ALLMENDINGER MARKUS ,  SCHMIED BERNHARD ,  HOLOCH JAN

IPC: C08J9/00

Abstract: A process for producing expandable styrene polymers (EPS) having improved expandability, wherein from 0.1 to 1% by weight, based on the styrene polymer, of a free-radical former is metered into a styrene polymer melt containing blowing agent at a melt temperature in the range from 150 to 220° C. and the melt is extruded through a die plate with subsequent underwater pelletization.

公开(公告)号：DE102005005494A1

公开(公告)日：2006-08-10

申请号：DE102005005494

申请日：2005-02-04

Applicant: BASF AG

Inventor： HAHN KLAUS ,  EHRMANN GERD ,  RUCH JOACHIM ,  ALLMENDINGER MARKUS ,  SCHMIED BERNHARD ,  HOLOCH JAN ,  MUEHLBACH KLAUS

IPC: C08L25/06 ,  C08J7/00 ,  C08J9/04 ,  C08K5/02 ,  C08K5/14

公开(公告)号：DE102004057602A1

公开(公告)日：2006-06-01

申请号：DE102004057602

申请日：2004-11-29

Applicant: BASF AG

Inventor： HAHN KLAUS ,  RUCH JOACHIM ,  EHRMANN GERD ,  TURZNIK GERHARD

IPC: B29C44/00

公开(公告)号：DE50302746D1

公开(公告)日：2006-05-11

申请号：DE50302746

申请日：2003-06-06

Applicant: BASF AG

Inventor： DIETZEN FRANZ-JOSEF ,  EHRMANN GERD ,  SCHMIED BERNHARD ,  LAUN MARTIN ,  HAHN KLAUS ,  RUCH JOACHIM ,  HOLOCH JAN ,  ALLMENDINGER MARKUS ,  DATKO ACHIM

IPC: C08J9/00 ,  C08J9/16 ,  B29B9/10 ,  B29B11/10 ,  B29C44/34 ,  B29C48/345 ,  B29K25/00 ,  B29K105/04

Abstract: A process for the preparation of expandable styrene polymers having a molecular weight Mw of greater than 170,000 g/mol, which comprises conveying a blowing agent-containing styrene polymer melt having a temperature of at least 120° C. through a die plate with holes whose diameter at the die exit is at most 1.5 mm, and subsequently granulating the extrudate, and expandable styrene polymers (EPS) having a molecular weight Mw of more than 170,000 g/mol with 0.05 to 1.5% by weight of internal water.

公开(公告)号：DE102004034516A1

公开(公告)日：2006-02-16

申请号：DE102004034516

申请日：2004-07-15

Applicant: BASF AG

Inventor： HAHN KLAUS ,  EHRMANN GERD ,  RUCH JOACHIM ,  ALLMENDINGER MARKUS ,  SCHMIED BERNHARD ,  HOLOCH JAN

IPC: C08F6/26 ,  C08F8/00 ,  C08F12/08 ,  C08J9/14 ,  C08K5/02 ,  C08L25/06

Abstract: The invention relates to a method for the production of flameproof, expandable styrol polymers (EPS) by extruding a styrol polymer melt containing a propellant and flameproof agents through a nozzle plate with subsequent under water granulation. The residence time of the flameproof agent is less than 30 minutes at a melting temperature in the region of between 140 to 220 °C.

公开(公告)号：DE102004034514A1

公开(公告)日：2006-02-16

申请号：DE102004034514

申请日：2004-07-15

Applicant: BASF AG

Inventor： HAHN KLAUS ,  EHRMANN GERD ,  RUCH JOACHIM ,  ALLMENDINGER MARKUS ,  SCHMIED BERNHARD ,  HOLOCH JAN ,  SCHMAUS PAULUS

IPC: B29B9/06 ,  B29C44/50 ,  C08J9/22 ,  C08K5/02 ,  C08K5/14

Abstract: A process for producing flame-resistant, expandable styrene polymers (EPS) or flame-resistant extruded styrene polymer foams (XPS), wherein an organic bromine compound having a bromine content of at least 70% by weight is used as flame retardant and a liquid peroxide, hydroperoxide or a peroxide solution is used as flame retardant synergist.

公开(公告)号：DE102004034515A1

公开(公告)日：2006-02-02

申请号：DE102004034515

申请日：2004-07-15

Applicant: BASF AG

Inventor： HAHN KLAUS ,  EHRMANN GERD ,  RUCH JOACHIM ,  ALLMENDINGER MARKUS ,  SCHMIED BERNHARD ,  HOLOCH JAN

IPC: B29B9/06 ,  B29C44/50 ,  C08J9/22 ,  C08K5/02 ,  C08K5/14

公开(公告)号：PL374432A1

公开(公告)日：2005-10-17

申请号：PL37443203

申请日：2003-06-06

Applicant: BASF AG

Inventor： DIETZEN FRANZ-JOSEF ,  EHRMANN GERD ,  SCHMIED BERNHARD ,  LAUN MARTIN ,  HAHN KLAUS ,  RUCH JOACHIM ,  ALLMENDINGER MARKUS ,  DATKO ACHIM ,  HOLOCH JAN

IPC: C08J9/00 ,  B29B9/10 ,  B29B11/10 ,  B29C44/34 ,  B29C48/345 ,  B29K25/00 ,  B29K105/04 ,  C08J9/16

Abstract: A process for the preparation of expandable styrene polymers having a molecular weight Mw of greater than 170,000 g/mol, which comprises conveying a blowing agent-containing styrene polymer melt having a temperature of at least 120° C. through a die plate with holes whose diameter at the die exit is at most 1.5 mm, and subsequently granulating the extrudate, and expandable styrene polymers (EPS) having a molecular weight Mw of more than 170,000 g/mol with 0.05 to 1.5% by weight of internal water.

公开(公告)号：DE10358805A1

公开(公告)日：2005-07-14

申请号：DE10358805

申请日：2003-12-12

Applicant: BASF AG

Inventor： HAHN KLAUS ,  EHRMANN GERD ,  RUCH JOACHIM ,  ALLMENDINGER MARKUS ,  SCHMIED BERNHARD ,  HOLOCH JAN ,  MUEHLBACH KLAUS ,  RIETHUES MICHAEL

IPC: C08J9/16 ,  C08J9/232 ,  B29B9/06 ,  B29C44/44

公开(公告)号：PL354969A1

公开(公告)日：2004-03-22

申请号：PL35496900

申请日：2000-10-10

Applicant: BASF AG

Inventor： MALETZKO CHRISTIAN ,  HAHN KLAUS ,  DE GRAVE ISIDOR ,  EHRMANN GERD ,  DIETZEN FRANZ-JOSEF

IPC: C08J9/16 ,  C08J9/18

Abstract: The invention relates to expandable olefin bead polymers which comprise a blowing agent with a boiling point of from -5 to 150° C., selected from the group consisting of alkanes, alkanols, ketones, ethers and esters. The particles are unfoamed and have a bulk density above 500 g/l, and can be foamed to a bulk density below 200 g/l after storage for one hour at room temperature in free contact with the atmosphere. They are prepared by impregnating polyolefin pellets in suspension in a pressure vessel with the blowing agent, cooling the batch below 100° C., reducing the pressure and isolating the particles.