Electroconductive thermoplastic moulding composition, process for the preparation thereof, and the use thereof

    公开(公告)号:DE3732176A1

    公开(公告)日:1989-04-06

    申请号:DE3732176

    申请日:1987-09-24

    Applicant: BASF AG

    Inventor: HOENL HANS DR

    Abstract: The invention relates to an electroconductive thermoplastic moulding composition containing, in each case based on the moulding composition comprising A + B + C, A from 96 to 60% by weight of at least one polymer containing styrene and/or substituted styrene, B from 2 to 20% by weight of at least one linear block copolymer containing hydrogenated styrene and butadiene, whose total styrene content, based on B, is in the range from 40 to 60% by weight, where from 5 to 25% by weight of the block copolymer is in the form of block polystyrene and the remainder of the styrene is incorporated randomly in from 60 to 40% by weight of hydrogenated butadiene, and where the block copolymer C has a mean molecular weight (weight average) of from 50,000 to 200,000 and furthermore containing C from 2 to 20% by weight of electroconductive black. The moulding composition is used for the production of mouldings.

    Thermoplastic moulding composition
    15.
    发明专利

    公开(公告)号:DE3425457A1

    公开(公告)日:1986-01-23

    申请号:DE3425457

    申请日:1984-07-11

    Applicant: BASF AG

    Abstract: The invention relates to a moulding composition containing a hard matrix A essentially comprising a polymer of a vinylaromatic monomer in a proportion of from 70 to 95 % by weight, based on the moulding composition of A+B, and a soft phase B, distributed therein, in a proportion of from 5 to 30 % by weight, based on the moulding composition of A+B, which has a mean particle size in the range from 0.1 to 1.5 mu m (number average). The soft phase is a graft copolymer comprising the vinylaromatic monomer of the polymer building up the hard matrix and an elastomeric styrene-butadiene two-block copolymer. The vinylaromatic monomer for building up the hard matrix A comprises ring-alkylated styrenes such that the soft phase B contains more than 70% (number average) of shell particles.

    18.
    发明专利
    未知

    公开(公告)号:DE3778683D1

    公开(公告)日:1992-06-04

    申请号:DE3778683

    申请日:1987-02-09

    Applicant: BASF AG

    Inventor: HOENL HANS DR

    Abstract: Thermoplastic moulding compsns. (I) comprises, on (A)+(B) (1) (A) 50-95 wt.% resin matrix formed, calculated on (A), from (a1) 98-50 wt.% styrene, (a2) 2-50 wt.% acrylonitrile, (B) 50-5 wt.% soft phase, evenly distributed in the resin matrix, comprising graft copolymer from (a1), (a2) and a styrene-butadiene block copolymer (II) of 50-95 wt.% styrene and 50-5 wt.% butadiene on (II) having wt. ave. mol. wt. 50,000-300000 (also given as 50,000-400000); or (2) (A) 60-90 wt.% resin matrix formed from (a1) 95-70 wt.% styrene, (a2) 5-30 wt.% acrylonitrile, (B) 40-10 wt.% soft phase, distributed as in (1), comprising a graft copolymer from (a1), (a2) and (II) of 55-90 wt.% styrene and 45-10 wt.% butadiene, wt.-ave. mol. wt. of the (II) being 50,000-400,000; or (3) (A) 60-90 wt.% resin matrix formed from (a1) 90-70 wt.% styrene, (a2) 10-30 wt.% acrylonitrile; (B) 40-10 wt.% soft phase, distributed as in (1), comprising a graft copolymer from (a1), (a2) and 60-85 wt.% styrene and 40-15 wt.% butadiene, wt.-ave. mol. wt. of the (II) being 50,000-400,000 or (4) (A) 60-90 wt.% resin matrix formed from (a1) 85-70 wt.% styrene, (a2) 15-30 wt.% acrylonitrile, (B) 40-10 wt.% soft phase, distributed as in (1) comprising graft copolymer from (a1) (a2) and (II) as in (3). Pref. (I) consist of (A) and (B).

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