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    3.
    发明专利
    未知

    公开(公告)号：DE59702903D1

    公开(公告)日：2001-02-15

    申请号：DE59702903

    申请日：1997-09-12

    Applicant: BASF AG

    Inventor： ITTEMANN PETER ,  NEUMANN RAINER ,  SEIBRING JOACHIM ,  ROSENAU BERNHARD ,  KOETTING MANFRED ,  GINSS CHRISTOPHE ,  GUENTHERBERG NORBERT ,  MEYER CHRISTIAN

    IPC: C08J5/00 ,  C08L25/04 ,  C08L33/08 ,  C08L33/20 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02

    Abstract: Thermoplastic molding materials ofA) from 72 to 88.5% by weight of a thermoplastic styrene or alpha-methylstyrene polymer or copolymer,B) from 10 to 20% by weight of a first graft polymer having an average particle diameter d50 from 400 to 600 nm, having an n-butyl acrylate based rubber-elastic graft core, and a styrene or alpha-methylstyrene (co)polymer graft shell,C) from 1.5 to 8% by weight of a second graft polymer having a bimodal particle size distribution, the average particle diameter d50 being from 25 to 200 nm and from 350 to 550 nm, having a butadiene or isoprene polymer or copolymer based rubber-elastic graft core, and a styrene or alpha-methylstyrene (co)polymer graft shell,D) from 0 to 50% by weight of conventional additives,where the graft polymers B) and C) constitute from 11.5 to 25% by weight of components A), B) and C), and components A) to D) amount to 100% by weight.

    5.
    发明专利
    未知

    公开(公告)号：ES2172908T3

    公开(公告)日：2002-10-01

    申请号：ES98938632

    申请日：1998-06-23

    Applicant: BASF AG

    Inventor： GUNTHERBERG NORBERT ,  KOCH JURGEN ,  ITTEMANN PETER ,  SEIBRING JOACHIM ,  GRABOWSKI SVEN ,  MC KEE GRAHAM EDMUND

    IPC: C08L51/06 ,  C08F279/04 ,  C08L25/12 ,  C08L25/14 ,  C08L51/04 ,  C08L55/02

    Abstract: A thermoplastic molding composition having little intrinsic color is produced from a graft copolymer and a thermoplastic polymer. The graft copolymer is produced from a soft elastomeric particulate graft base obtained by polymerization of a conjugated diene alone or with a small amount of a monoethylenically unsaturated monomer, upon which is grafted a vinylaromatic monomer and acrylonitrile and optionally another monoethylenically unsaturated monomer. The thermoplastic polymer is a copolymer of a vinylaromatic monomer and acrylonitrile and optionally an additional monoethylenically unsaturated monomer. The thermoplastic molding composition has a low level of intrinsic color coupled with good mechanical properties and can be processed by, for example, extrusion, injection molding, calendaring, blow molding, compression molding, or sintering.

    Low individual color thermoplastic molding material
    6.
    发明专利
    Low individual color thermoplastic molding material 未知

    公开(公告)号：AU8728598A

    公开(公告)日：1999-01-25

    申请号：AU8728598

    申请日：1998-06-23

    Applicant: BASF AG

    Inventor： GUNTHERBERG NORBERT ,  KOCH JURGEN ,  ITTEMANN PETER ,  SEIBRING JOACHIM ,  GRABOWSKI SVEN ,  KEE GRAHAM EDMUND MC ,  MOSBACH NORBERT

    IPC: C08L51/06 ,  C08F279/04 ,  C08L25/12 ,  C08L25/14 ,  C08L51/04 ,  C08L55/02

    Abstract: A thermoplastic molding composition having little intrinsic color is produced from a graft copolymer and a thermoplastic polymer. The graft copolymer is produced from a soft elastomeric particulate graft base obtained by polymerization of a conjugated diene alone or with a small amount of a monoethylenically unsaturated monomer, upon which is grafted a vinylaromatic monomer and acrylonitrile and optionally another monoethylenically unsaturated monomer. The thermoplastic polymer is a copolymer of a vinylaromatic monomer and acrylonitrile and optionally an additional monoethylenically unsaturated monomer. The thermoplastic molding composition has a low level of intrinsic color coupled with good mechanical properties and can be processed by, for example, extrusion, injection molding, calendaring, blow molding, compression molding, or sintering.

    7.
    发明专利
    未知

    公开(公告)号：ES2120776T3

    公开(公告)日：1998-11-01

    申请号：ES95937072

    申请日：1995-11-14

    Applicant: BASF AG

    Inventor： MC KEE GRAHAM EDMUND ,  MOORS RAINER ,  GAUSEPOHL HERMANN ,  SEIBRING JOACHIM

    IPC: C08F2/18 ,  C08F4/04 ,  C08F4/28 ,  C08F220/12 ,  C08F265/04 ,  C08L51/04

    Abstract: PCT No. PCT/EP95/04474 Sec. 371 Date May 12, 1997 Sec. 102(e) Date May 12, 1997 PCT Filed Nov. 14, 1995 PCT Pub. No. WO96/15166 PCT Pub. Date May 23, 1996In the preparation of a rubber-modified molding material, in a first stage, a first mixture (A) contains at least one alkyl acrylate or methacrylate (a) of the formula (I) where R1 is hydrogen or methyl and R2 is alkyl of 1 to 32 carbon atoms, at least one first monomer (b) which forms free radicals on thermal decomposition and, if required, a second monomer (c) or a plurality thereof is polymerized, preferably with free radicals, to give a rubber (B), in a second stage, the resulting rubber (B) is mixed with a third monomer (d) or a plurality thereof, preferably dissolved or swollen therein, to form a second mixture (C), and in a third stage, the second mixture (C) is polymerized with free radicals to give the rubber-modified molding material (D).

    Thermoplastic moulding compounds
    8.
    发明专利
    Thermoplastic moulding compounds 未知

    公开(公告)号：AU4458197A

    公开(公告)日：1998-04-17

    申请号：AU4458197

    申请日：1997-09-12

    Applicant: BASF AG

    Inventor： ITTEMANN PETER ,  NEUMANN RAINER ,  SEIBRING JOACHIM ,  ROSENAU BERNHARD ,  KOTTING MANFRED ,  GINSS CHRISTOPHE ,  GUNTHERBERG NORBERT ,  MEYER CHRISTIAN

    IPC: C08J5/00 ,  C08L25/04 ,  C08L33/08 ,  C08L33/20 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02

    Abstract: Thermoplastic molding materials ofA) from 72 to 88.5% by weight of a thermoplastic styrene or alpha-methylstyrene polymer or copolymer,B) from 10 to 20% by weight of a first graft polymer having an average particle diameter d50 from 400 to 600 nm, having an n-butyl acrylate based rubber-elastic graft core, and a styrene or alpha-methylstyrene (co)polymer graft shell,C) from 1.5 to 8% by weight of a second graft polymer having a bimodal particle size distribution, the average particle diameter d50 being from 25 to 200 nm and from 350 to 550 nm, having a butadiene or isoprene polymer or copolymer based rubber-elastic graft core, and a styrene or alpha-methylstyrene (co)polymer graft shell,D) from 0 to 50% by weight of conventional additives,where the graft polymers B) and C) constitute from 11.5 to 25% by weight of components A), B) and C), and components A) to D) amount to 100% by weight.

    METHOD FOR GRANULATING POLYMER MELTS THAT CONTAIN LOW BOILING FRACTIONS
    9.
    发明专利
    METHOD FOR GRANULATING POLYMER MELTS THAT CONTAIN LOW BOILING FRACTIONS 未知

    公开(公告)号：CA2646703A1

    公开(公告)日：2007-09-27

    申请号：CA2646703

    申请日：2007-03-21

    Applicant: BASF AG

    Inventor： BRUCKMANN THEODOR ,  KOPIETZ MICHAEL ,  SEIBRING JOACHIM ,  BECKER JENS

    IPC: B29B9/06 ,  B29C44/34 ,  B29C48/345

    Abstract: The procedure for granulating polymer melts (21) in a granulation chamber (20) to manufacture polyamide, comprises flooding the granulating chamber with a nitrogen/air in relation to the polymer melt, injecting the polymer melt into the granulating chamber and expelling the nitrogen/air from the granulating chamber by a liquid once the polymer melt starts to flow through the cutting device. After expelling the nitrogen/air, a further polymer melt is injected into the chamber. In the granulation chamber, a cutting device is accommodated at a pressure above the ambient pressure. The procedure for granulating polymer melts (21) in a granulation chamber (20) to manufacture polyamide, comprises flooding the granulating chamber with a nitrogen/air in relation to the polymer melt, injecting the polymer melt into the granulating chamber and expelling the nitrogen/air from the granulating chamber by a liquid once the polymer melt starts to flow through the cutting device. After expelling the nitrogen/air, a further polymer melt is injected into the chamber. In the granulation chamber, a cutting device is accommodated at a pressure above the ambient pressure. The nitrogen/air shows a pressure, with which the granulation is carried out. The polymer melt in the cutting device is cut into pellets. The granulated pellets with the liquid are discharged from the granulation chamber and subsequently separated from the liquid. The pressure in the granulation chamber is 2-15 bar. An independent claim is included for a device for granulating polymer melts in the granulation chamber.

    10.
    发明专利
    未知

    公开(公告)号：DE59803025D1

    公开(公告)日：2002-03-21

    申请号：DE59803025

    申请日：1998-06-23

    Applicant: BASF AG

    Inventor： GUENTHERBERG NORBERT ,  KOCH JUERGEN ,  ITTEMANN PETER ,  SEIBRING JOACHIM ,  GRABOWSKI SVEN ,  MC KEE EDMUND ,  MOSBACH NORBERT ,  HEINEN HARTMUT ,  CZAUDERNA BERNHARD ,  NIESSNER NORBERT

    IPC: C08L51/06 ,  C08F279/04 ,  C08L25/12 ,  C08L25/14 ,  C08L51/04 ,  C08L55/02

    Abstract: A thermoplastic molding composition having little intrinsic color is produced from a graft copolymer and a thermoplastic polymer. The graft copolymer is produced from a soft elastomeric particulate graft base obtained by polymerization of a conjugated diene alone or with a small amount of a monoethylenically unsaturated monomer, upon which is grafted a vinylaromatic monomer and acrylonitrile and optionally another monoethylenically unsaturated monomer. The thermoplastic polymer is a copolymer of a vinylaromatic monomer and acrylonitrile and optionally an additional monoethylenically unsaturated monomer. The thermoplastic molding composition has a low level of intrinsic color coupled with good mechanical properties and can be processed by, for example, extrusion, injection molding, calendaring, blow molding, compression molding, or sintering.

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