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1.发明专利
公开(公告)号：JP2003192818A
公开(公告)日：2003-07-09
申请号：JP2002367631
申请日：2002-12-19
Applicant: BASF AG
Inventor： DIETZEN FRANZ-JOSEF , SCHERZER DIETRICH , QUEISSER JOACHIM DR , RUECK SWEN , EHRMANN GERD , KRATZMUELLER WOLFGANG
Abstract: PROBLEM TO BE SOLVED: To provide a method of production for foamed web utilizing a safe foam for use at high temperature. SOLUTION: The invention provides a method producing the foamed web by carrying out a foaming extrusion of a mixture of a polysulfone or a polyether with a volatile foaming agent. The foaming agent used in the method comprises water, or a mixture of water and an organic liquid for example, an alcohol or a ketone. COPYRIGHT: (C)2003,JPO
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公开(公告)号：DE50205825D1
公开(公告)日：2006-04-20
申请号：DE50205825
申请日：2002-12-06
Applicant: BASF AG
Inventor： DIETZEN DR , SCHERZER DR , QUEISSER DR , RUECK SWEN , EHRMANN DR , KRATZMUELLER WOLFGANG
Abstract: Water, or a mixture (pts. wt.) of water (100) and organic liquid (at most 200) is used as the blowing agent in a method for the production of foam sheet by extruding a mixture of polysulfone or polyethersulfone and volatile blowing agent (1-10 wt.%) under pressure at above 300 degreesC into the open air.
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公开(公告)号：DE59702297D1
公开(公告)日：2000-10-05
申请号：DE59702297
申请日：1997-10-28
Applicant: BASF AG
Inventor： BAUMGAERTEL MICHAEL , DEMBEK GERHARD , HAHN KLAUS , HOLOCH JAN , HUSEMANN WOLFRAM , KAEMPFER KNUT , LAY PETER , RUECK SWEN , SCHIESSL MICHAEL , WITT MICHAEL
IPC: C08F257/02 , C08J9/20
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公开(公告)号：DE19530765A1
公开(公告)日：1997-02-27
申请号：DE19530765
申请日：1995-08-22
Applicant: BASF AG
Inventor： LAY PETER , RUECK SWEN , SCHIESSL MICHAEL , WITT MICHAEL DR , ZETTLER HANS-DIETER , BAUMGAERTEL MICHAEL DR , DEMBEK GERHARD DR , HAHN KLAUS DR , HOLOCH JAN DR , HUSEMANN WOLFRAM DR , KAEMPFER KNUT DR
Abstract: A process is disclosed for continuously producing expandable styrene polymers by polymerising styrene in the presence of expanding agents in three steps: (a) prepolymerising styrene in the mass; (b) dispersing the prepolymer in an aqueous phase; and (c) polymerising the prepolymer in an aqueous suspension.
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公开(公告)号：PL375394A1
公开(公告)日：2005-11-28
申请号：PL37539403
申请日：2003-08-28
Applicant: BASF AG
Inventor： DIETZEN FRANZ-JOSEF , EHRMANN GERD , HAHN KLAUS , RUECK SWEN
Abstract: A process for producing foam beads with low bulk density from thermoplastic polymers, encompassing the stages of a) addition of a blowing agent to a thermoplastic polymer melt, b) cooling and extrusion, through a die, of the polymer melt comprising blowing agent c) cutting of the polymer melt comprising-blowing agent downstream of the die at reduced pressure with foaming to give foam beads where water and a solubilizer are present in the blowing agent, and foam beads obtainable by the process.
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Patent Agency Ranking
公开(公告)号：BR0313928A
公开(公告)日：2005-07-12
申请号：BR0313928
申请日：2003-08-28
Applicant: BASF AG
Inventor： DIETZEN FRANZ-JOSEF , EHRMANN GERD , HARN KLAUS , RUECK SWEN
Abstract: A process for producing foam beads with low bulk density from thermoplastic polymers, encompassing the stages of a) addition of a blowing agent to a thermoplastic polymer melt, b) cooling and extrusion, through a die, of the polymer melt comprising blowing agent c) cutting of the polymer melt comprising-blowing agent downstream of the die at reduced pressure with foaming to give foam beads where water and a solubilizer are present in the blowing agent, and foam beads obtainable by the process.
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公开(公告)号：NO980736D0
公开(公告)日：1998-02-20
申请号：NO980736
申请日：1998-02-20
Applicant: BASF AG
Inventor： LAY PETER NICOLAUS , RUECK SWEN , SCHIESSL MICHAEL , WITT MICHAEL , ZETTLER HANS DIETER , BAUMGAERTEL MICHAEL , DEMBEK GERHARD , HAHN KLAUS , HOLOCK JAN , HUSEMANN WOLFRAM , KAEMPFER KNUT
Abstract: PCT No. PCT/EP96/03633 Sec. 371 Date Jan. 29, 1998 Sec. 102(e) Date Jan. 29, 1998 PCT Filed Aug. 19, 1996 PCT Pub. No. WO97/08231 PCT Pub. Date Mar. 6, 1997A continuous process for preparing bead-form expandable styrene polymers in which the styrene is prepolymerized in bulk to a conversion of 10 to 80%, the prepolymer is dispersed in liquid form in an aqueous phase in the presence of suspension stabilizers, and the polymerization of the prepolymer is completed in an aqueous suspension to a residual styrene content of less than 2000 ppm.
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公开(公告)号：DE10241298A1
公开(公告)日：2004-03-18
申请号：DE10241298
申请日：2002-09-04
Applicant: BASF AG
Inventor： DIETZEN FRANZ-JOSEF , EHRMANN GERD , HAHN KLAUS , RUECK SWEN
Abstract: A process for producing foam beads with low bulk density from thermoplastic polymers, encompassing the stages of a) addition of a blowing agent to a thermoplastic polymer melt, b) cooling and extrusion, through a die, of the polymer melt comprising blowing agent c) cutting of the polymer melt comprising-blowing agent downstream of the die at reduced pressure with foaming to give foam beads where water and a solubilizer are present in the blowing agent, and foam beads obtainable by the process.
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公开(公告)号：PL325059A1
公开(公告)日：1998-07-06
申请号：PL32505996
申请日：1996-08-19
Applicant: BASF AG
Inventor： LAY PETER NIKOLAUS , RUECK SWEN , SCHIESSL MICHAEL , WITT MICHAEL , ZETTLER HANS DIETER , BAUMGAERTEL MICHAEL , DEMBEK GERHARD , HAHN KLAUS , HOLOCH JAN , HUSEMANN WOLFRAM , KAEMPFER KNUT
Abstract: PCT No. PCT/EP96/03633 Sec. 371 Date Jan. 29, 1998 Sec. 102(e) Date Jan. 29, 1998 PCT Filed Aug. 19, 1996 PCT Pub. No. WO97/08231 PCT Pub. Date Mar. 6, 1997A continuous process for preparing bead-form expandable styrene polymers in which the styrene is prepolymerized in bulk to a conversion of 10 to 80%, the prepolymer is dispersed in liquid form in an aqueous phase in the presence of suspension stabilizers, and the polymerization of the prepolymer is completed in an aqueous suspension to a residual styrene content of less than 2000 ppm.
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公开(公告)号：PL206019B1
公开(公告)日：2010-06-30
申请号：PL37539403
申请日：2003-08-28
Applicant: BASF AG
Inventor： DIETZEN FRANZ-JOSEF , EHRMANN GERD , HAHN KLAUS , RUECK SWEN
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