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    3.
    发明专利
    未知

    公开(公告)号：DE19639592A1

    公开(公告)日：1998-04-02

    申请号：DE19639592

    申请日：1996-09-26

    Applicant: BASF AG

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

    IPC: C08J5/00 ,  C08L25/04 ,  C08L33/08 ,  C08L33/20 ,  C08L51/00 ,  C08L51/04 ,  C08L55/02 ,  C08J3/20 ,  C08J5/04 ,  A47G25/00 ,  E04F19/08

    Abstract: Thermoplastic moulding compounds contain, in relation to the total weight of the moulding compound: (A) 72 to 88.5 wt % of a thermoplastic polymer which, in relation to (A), consists of (a1) 50 to 100 wt % styrene or alpha -methylstyrene or their mixtures; (a2) 0 to 50 wt % acryl nitrile; (a3) 0 to 50 wt % one or several other monoethylenically unsaturated monomers; (B) 10 to 20 wt % of a first graft polymer with a mean particle diameter d50 of 400 to 600 nm and which, in relation to B, consists of (b1) 30 to 90 wt % of a rubber elastic graft core (with (b11) 80 to 99.99 wt % n-butylacrylate, (b12) 0.01 to 20 wt % of at least one cross-linking monomer, (b13) 0 to 40 wt % one or several other monoethylenically unsaturated monomers); (b2) 10 to 70 wt % of a graft shell (with in relation to (b2): (b21) 50 to 100 wt % styrene or alpha -methylstyrene or their mixtures, (b22) 0 to 50 wt % acryl nitrile, (b23) 0 to 50 wt % of one or several other monoethylenically unsaturated monomers); (C) 1.5 to 8 wt % of a second graft polymer with bimodal particle size distribution with mean particle diameters d50 of 25 to 200 nm on the one hand and 350 to 550 nm on the other hand, and which, in relation to (C), consists of (c1) 30 to 90 wt % of a rubber elastic graft core (with (c11) 50 to 100 wt % butadiene or isoprene or their mixtures, (c12) 0 to 50 wt % one or several other monoethylenically unsaturated monomers); (c2) 10 to 70 wt % of a graft shell (with (c21) 50 to 100 wt % styrene or alpha -methylstyrene or their mixtures, (c22) 0 to 50 wt % acryl nitrile, (c23) 0 to 50 wt % one or several other monoethylenically unsaturated monomers); (D) 0 to 50 wt % parting agents or mould release agents, pigments, dyes, fire-proofing agents, antioxidants, stabilisers against exposure to light, fibrous or powdery fillers or reinforcing agents or antistatic agents, or other additives or their mixtures. The sum of graft polymers (B) and (C) equals 11.5 to 25 wt % of the sum of the three components (A), (B) and (C), and the sum of the four components (A) to (D) equals 100 wt %.

    7.
    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.

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