2.
    发明专利
    未知

    公开(公告)号:DE10019215A1

    公开(公告)日:2001-10-25

    申请号:DE10019215

    申请日:2000-04-18

    Applicant: BASF AG

    Abstract: Graft rubbers comprising a graft core and a graft sheath are prepared by selective hydrogenation of ethylenically unsaturated double bonds of the elastomeric rubber polymer graft core with hydrogen in the presence of a catalyst comprising salts and complex compounds of rhodium and/or ruthenium whereby the aqueous rubber polymer dispersion contains upto 20 vol. % of an organic solvent. Graft rubbers (I) comprising a graft core and a graft sheath are prepared by: (A) preparation of an aqueous dispersion of at least one elastomeric rubber polymer prepared from at least one conjugated diene, optionally at least one copolymerizable monomer, optionally at least one modifying monomer; (B) followed by selective hydrogenation of ethylenically unsaturated double bonds of the elastomeric rubber polymer with hydrogen in the presence of a catalyst comprising salts and complex compounds of rhodium and/or ruthenium whereby the aqueous dispersion of the rubber polymer contains upto 20 vol. % of an organic solvent to prepare the graft core; and (C) grafting at least one graft shell onto the graft core prepared from at least one styrene compound of formula (1), optionally at least one monoethylenically unsaturated nitrile compound and optionally at least further monomer. R , R = H or 1-8C alkyl; n = 0-3 Independent claims are included for: (i) mixtures containing 2-70 wt.% graft rubber (I), 30-98 wt.% of at least one thermoplastic polymer and 0-50 wt.% other additives; and (ii) a process for the production of mixtures by melting the components at 100-350 degrees C.

    3.
    发明专利
    未知

    公开(公告)号:DE10003807A1

    公开(公告)日:2001-08-02

    申请号:DE10003807

    申请日:2000-01-28

    Applicant: BASF AG

    Abstract: The invention relates to thermoplastic molding materials containing the following: A) 20 to 99 wt. % of a polyoxymethylene homo- or copolymer; B) 1 to 40 wt. % of a graft polymer with an average particle size of 200 to 1000 nm, consisting of b1) 25 to 95 wt. % of at least one graft base consisting of a rubber elastic polymer with b11) 75 to 95 wt. % of a C1 to C10-alkylacrylate and b12) 0.1 to 5 wt. % of a polyfunctional monomer with at least 2 olefinic, non-conjugated double bonds and b13) 0 to 24.9 wt. % other copolymerisable monomers; and b2) 5-75 wt. % of a terminating, rigid, thermoplastic grafted-on component which is polymerized in the presence of an elastomer phase; and c) 0 to 70 wt. % other additives, the weight percentages of components A) to C) weights totaling 100 %.

    8.
    发明专利
    未知

    公开(公告)号:DE10003509A1

    公开(公告)日:2001-08-02

    申请号:DE10003509

    申请日:2000-01-27

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing impact resistant plastics on the basis of grafted cross-linked rubber particles. The invention further relates to an impact resistant plastic that is obtained using the inventive method. The method for producing the impact resistant plastic comprises the following steps: (a) producing particles of a cross-linked rubber from a first monomer mixture that has a diene composition content of

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