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    Preparing acrylonitrile-butadiene styrene-copolymer, useful to prepare e.g. foils and fibers, comprises adding seed latex, polymerizing butadiene, styrene, styrene and acrylonitrile, and mixing graft copolymer with thermoplastic copolymer
    31.
    发明专利
    Preparing acrylonitrile-butadiene styrene-copolymer, useful to prepare e.g. foils and fibers, comprises adding seed latex, polymerizing butadiene, styrene, styrene and acrylonitrile, and mixing graft copolymer with thermoplastic copolymer 未知

    公开(公告)号：DE102009026933A1

    公开(公告)日：2010-01-14

    申请号：DE102009026933

    申请日：2009-06-15

    Applicant: BASF SE

    Inventor： STEINKE TOBIAS HEINZ ,  SCHADE CHRISTIAN ,  BANASZAK BRIAN

    IPC: C08F279/04 ,  C08J5/00

    Abstract: Preparing acrylonitrile-butadiene styrene-copolymer containing (A) graft copolymer comprising (A1) graft substructure, which contains (A11) butadiene, (A12) styrene and (A13) agglomerizing agent, (A2) graft shell containing (A21) styrene and (A22) acrylonitrile, and (B) thermoplastic copolymer containing (B1) acrylonitrile and (B2) styrene, comprises adding seed latex; radical emulsion polymerization of the component (A11) and optionally (A12); radical or redox initiator emulsion polymerization of components (A21) and (A22); and mixing (A) with thermoplastic copolymer (B). Preparation of acrylonitrile-butadiene styrene-copolymer containing (A) 10-60 wt.% of a graft copolymer comprising (A1) 55-70 wt.% of graft substructure, which contains (A11) 85-100 wt.% of butadiene, (A12) 0-10 wt.% of styrene and (A13) 0-5 wt.% of an agglomerizing agent, (A2) 30-45 wt.% of graft shell containing (A21) 70-90 wt.% of styrene and (A22) 10-30 wt.% of acrylonitrile, and (B) 40-90 wt.% of a thermoplastic copolymer containing (B1) 15-35 wt.% of acrylonitrile and (B2) 65-85 wt.% of styrene, comprises adding a seed latex; radical emulsion polymerization of the component (A11) and optionally (A12), in the presence of the seed latex; radical or redox initiated emulsion polymerization of the components (A21) and (A22) in the presence of the formed (A1); and mixing (A) with a thermoplastic copolymer (B) produced in a separate way, where: the seed latex exhibits an average particle diameter of less than 10 nm, determined by analytical ultracentrifuge corresponding to the method according to W. Scholtan and H. Lange, Colloid.-Periodical and Z.-Polymer 250 (1972), pages 782-796; and instead of the described turbidity optics, an interference optic is used in the process. Independent claims are included for: (1) the acrylonitrile-butadiene styrene-copolymer obtained by the above method; (2) the preparation of a rubber elastic polymer particulate comprising polymerization the rubber elastic polymer particulate forming monomer in the presence of the seed latex; and (3) the rubber elastic polymer particulate obtained by the above process.

    Mixtures for the coating of metallic surfaces
    36.
    发明专利
    Mixtures for the coating of metallic surfaces 未知

    公开(公告)号：AU2013343699B2

    公开(公告)日：2016-11-10

    申请号：AU2013343699

    申请日：2013-11-04

    Applicant: BASF SE

    Inventor： SCHADE CHRISTIAN ,  URBAN TOBIAS

    IPC: C09D4/06 ,  C09D123/08

    Abstract: A method for coating metallic surfaces, in which the metallic surface is contacted with an aqueous copolymer dispersion, wherein the aqueous copolymer dispersion contains an effective amount of magnesium ions and phosphate or phosphonate ions, and wherein the copolymers present in the dispersion are formed from the following components: (A) from 20 to 95% by weight of monoethylenically unsaturated hydrocarbons and/or hydrocarbons having two conjugated double bonds, (B) from 5 to 80% by weight of monoethylenically unsaturated monomers having acid groups and/or the anhydrides or salts thereof. The invention further provides metallic surfaces coated with such copolymers and for the use of such aqueous copolymer dispersions for coating of metallic surfaces.

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