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    12.
    发明专利
    未知

    公开(公告)号：AT366280T

    公开(公告)日：2007-07-15

    申请号：AT05701330

    申请日：2005-02-03

    Applicant: BASF AG

    Inventor： STORK MARTIN ,  WEBER MARTIN ,  GOTTSCHALK AXEL ,  RIECHERS SVEN ,  GUENTHERBERG NORBERT ,  FISCHER WOLFGANG ,  LEBER LUDGER ,  ITTEMANN PETER ,  JUENGLING STEPHAN ,  DUIJZINGS WIL

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

    Abstract: The invention relates to thermoplastic moulding materials containing a mixture of (A) between 30 and 69 wt. %, in relation to the sum of the constituents (A), (B) and (C), of a methylmethacrylate polymer, (B) between 30 and 69 wt. %, in relation to the sum of the constituents (A), (B) and (C), of a copolymer that can be obtained by the polymerisation of a vinylaromatic monomer and a vinylcyanide, and (C) between 1 and 40 wt. %, in relation to the sum of the constituents (A), (B) and (C), of a graft copolymer that can be obtained from (C1) between 60 and 90 wt. %, in relation to (C), of a core, (C2) between 5 and 20 wt. %, in relation to (C), of a first graft envelope consisting of a vinylaromatic monomer, an alkylmethacrylate and optionally a cross-linking monomer, and (C3) between 5 and 20 wt. %, in relation to (C), of a second graft envelope consisting of an alkyl(meth)acrylate polymer, on the proviso that the quantitative ratio of (C2) to (C3) is between 2:1 and 1:2. The invention is characterised in that the average particle size D50 of the core (C1) is between 50 and 250 nm, the average particle size D90 of the core (C1) is between 60 and 1000 nm, the average particle size D90 of the core (C1) being larger than the average particle size D50 of the core (C1), by a factor between 1.15 and 20, and the core (C1) can be obtained by the polymerisation of a monomer mixture comprising (C11) between 65 and 89 wt. %, in relation to (C1), of a 1,3-diene, (C12) between 10 and 34.9 wt. %, in relation to (C1), of a vinylaromatic monomer, and (C13) between 0.1 and 5 wt. %, in relation to (C1), of an agglomeration polymer. The invention also relates to a method for producing said moulding masses, to the use thereof, and to the moulded bodies obtained therefrom.

    16.
    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.

    19.
    发明专利
    未知

    公开(公告)号：DE59408703D1

    公开(公告)日：1999-10-14

    申请号：DE59408703

    申请日：1994-03-08

    Applicant: BASF AG

    Inventor： MARCZINKE BERND LOTHAR ,  KERTH JUERGEN ,  MUELLER PATRIK ,  BAUMGARTL HORST ,  ITTEMANN PETER

    IPC: C08F8/46 ,  C08F255/00 ,  C08F255/02 ,  C09J151/06 ,  D01F6/30

    Abstract: The present invention relates to propylene copolymers grafted to alpha , beta -ethylenic unsaturated carboxylic acids or carboxylic acid derivatives, comprising ai) a random propylene copolymer (A1) containing from 0.1 to 15 % by weight of copolymerised C2- to C10-alk-1-enes, or a2) a propylene copolymer (A2), a random propylene copolymer (I) containing from 0.1 to 15% by weight of copolymerised C2- to C10-alk-1-enes and a random propylene copolymer (II) containing from 15 to 80% by weight of copolymerised C2- to C10-alk-1-enes, or a3) a propylene copolymer (A3) comprising a propylene homopolymer (III) and a random propylene copolymer (IV) containing from 15 to 80% by weight of copolymerised C2- to C10-alk-1-enes, obtainable by reacting the monomer to be grafted with the propylene copolymer (A1), (A2) or (A3) at pressures of from 1 to 300 bar, where, in the presence of from 0.005 to 0.5% by weight of an initiator which decomposes to give free radicals, from 0.01 to 1.0% by weight of the monomer to be grafted, where both concentrations are based on the propylene copolymer, is mixed with the molten propylene copolymer, and the grafting reaction is carried out at from 200 to 350@C.

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