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    1.
    发明专利
    未知

    公开(公告)号：DE59606942D1

    公开(公告)日：2001-06-28

    申请号：DE59606942

    申请日：1996-09-26

    Applicant: BASF AG

    Inventor： ROSENAU DR ,  MCKEE DR ,  SCHWEIGER CHRISTIAN

    IPC: C08J5/00 ,  C08F285/00 ,  C08L9/02 ,  C08L25/02 ,  C08L25/06 ,  C08L25/12 ,  C08L33/04 ,  C08L33/06 ,  C08L51/00 ,  C08L51/06 ,  C08L55/00 ,  C08L55/02

    Abstract: Mouldings made from thermoplastic moulding materials (I) contg.: (A) 30-99.8 wt.% thermoplastic polymer derived from (a1) 50-100 wt.% styrene cpd. of formula (II) ( R1, R2 = 1-8C alkyl; and/or a (1-8C alkyl) (meth)acrylate, (a2) 0-40 wt.% (meth)acrylonitrile and (a3) 0-40 wt.% other unsatd. comonomers; (B) 0.1-70 wt% of a graft copolymer with an average particle dia. (d50) of less than 700 nm, comprising (b1) 30-90 wt% rubber- elastic core consisting of a polymer with a Tg of below 0 degrees C, obtd. by copolymerisation of (b11) 50-99.99 wt% (1-10C alkyl) acrylate, (b12) 0.01-5 wt.% polyfunctional crosslinking monomer and (b13) 0-40 wt. % other unsatd. comonomers, and (b2) 10-70 wt.% of a grafted shell derived form (b21) 50-100 wt.% styrene cpd. (II) and/or (meth)acrylate ester as in (a1) above, (b22) 0-40 wt.% (meth)acrylonitrile and (b23) 0-40 wt.% other unsatd. comonomer(s), and (C) 0.1-70 wt.% of a particulate polymer as delustering agent, based on (c1) a rubber-elastic graft copolymer with a d50 of 700 nm or more, contg. a butadiene-based core and a styrene/acrylonitrile (SAN)-based shell and obtd. by soln. polymerisation, or (c2) a hard polymer based on poly(alkyl methacrylates), or (c3) a polymer which is incompatible or partly compatible with mixts. contg. components (A) and (B), or (c4) a graft copolymer as in (B) but with a d50 of 700 nm or more. Pref. polymer (C) is a graft copolymer with a poly(butyl acrylate) core and a SAN copolymer shell, with a d50 of 700 nm or more, or a graft copolymer made by soln. polymerisation, with a polybutadiene core and a SAN copolymer shell, and with a d50 of 700 nm or more, or one of the other types of polymer (c2), (c3), (c4) as described above.

    2.
    发明专利
    未知

    公开(公告)号：DE59604740D1

    公开(公告)日：2000-04-27

    申请号：DE59604740

    申请日：1996-08-05

    Applicant: BASF AG

    Inventor： MCKEE DR ,  GUNESIN DR ,  TICKTIN DR

    IPC: C08F2/22 ,  C08F2/14 ,  C08F2/24 ,  C08F2/44 ,  C08F285/00 ,  C08F287/00 ,  C08F295/00 ,  C08J3/12

    Abstract: Prodn. of polymer particles comprises: (a) polymerising monomer(s) (I) in the presence of block copolymer and/or graft copolymer in an organic dispersant which does not dissolve the polymer to be prepd.; and (b) free radical polymerisation of monomer(s) (II) once or repeatedly in the presence of the resultant polymer. Also claimed are the polymer particles produced, which have a core of (I) polymer and shell(s) of (II) polymer.

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