中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

20 records (took 0.04 seconds)

    Method for producing impact resistant plastics
    2.
    发明专利
    Method for producing impact resistant plastics 未知

    公开(公告)号：AU2850501A

    公开(公告)日：2001-08-07

    申请号：AU2850501

    申请日：2001-01-26

    Applicant: BASF AG

    Inventor： KEE GRAHAM EDMUND MC ,  GAUSEPOHL HERMANN ,  NIESSNER NORBERT

    IPC: C08F279/02 ,  C08F279/04 ,  C08F285/00 ,  C08L51/04 ,  C08L55/02

    Abstract: The invention relates to a process for preparing an impact-modified plastic based on grafted crosslinked rubber particles, and also to an impact-modified plastic obtainable by the process. To prepare the impact-modified plastic, (a) particles of a crosslinked rubber are produced from a first monomer mixture which has a content of at least 50% by weight, preferably at least 90% by weight, particularly preferably at least 98% by weight, of diene compounds. The particles of the crosslinked rubber are (b) grafted with a second monomer or monomer mixture, with formation of a graft shell. Particles of the grafted crosslinked rubber are (c) added to a third monomer mixture, and the monomers of the third monomer mixture (d) are polymerized, with formation of a matrix. The process of the invention is simple to carry out and gives impact-modified plastics with very good mechanical properties.

    Process for producing a particulate polymer
    7.
    发明专利
    Process for producing a particulate polymer 未知

    公开(公告)号：AU4013997A

    公开(公告)日：1998-03-06

    申请号：AU4013997

    申请日：1997-08-05

    Applicant: BASF AG

    Inventor： KEE GRAHAM EDMUND MC ,  RENZ GUNTER ,  JAHNS EKKEHARD ,  KASTENHUBER WALTER

    IPC: C08F2/22 ,  C08F2/24 ,  C08F2/44 ,  C08F20/00 ,  C08F265/00 ,  C08F291/00 ,  G03G9/08

    Abstract: A particulate polymer P having an average particle diameter d50 of from 0.1 to 50 mum is prepared by a process in which an emulsion E is prepared fromone or more monomers M, which are polymerizable by free radical polymerization to give the polymer P,water, andat least one protective colloid PCby the action of high shear forces, and the emulsion E is subjected to polymerization in a reactor with the use of a free radical polymerization initiator RI wherein, based on the emulsion E, not more than 75% by weight of the emulsion E (initially taken portion of E) are initially taken in the reactor at the beginning of the polymerization and at least 25% by weight of the emulsion E (feed portion of E) are not fed to the reactor until after the beginning of the polymerization.

    10.
    发明专利
    未知

    公开(公告)号：BR9810666A

    公开(公告)日：2000-09-26

    申请号：BR9810666

    申请日：1998-06-23

    Applicant: BASF AG

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

    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.

Patent Agency Ranking