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    44.
    发明专利
    未知

    公开(公告)号：ES2066241T3

    公开(公告)日：1995-03-01

    申请号：ES91102056

    申请日：1991-02-14

    Applicant: BASF AG

    Inventor： LAUSBERG DIETRICH DR ,  MUEHLBACH KLAUS DR ,  BLUMENSTEIN UWE DR ,  FAEHNDRICH KNUD

    IPC: C08L25/00 ,  C08L25/16 ,  C08L51/00 ,  C08L51/04 ,  C08L51/06 ,  C08L75/00 ,  C08L75/04 ,  C08L75/06

    Abstract: The invention relates to thermoplastic moulding compositions of improved green strength and low-temperature impact strength based on a TPU copolymer mixture and containing, based on 100 parts by weight, A) from 20 to 90 parts by weight of at least one thermoplastic polyurethane, B) from 1 to 40 parts by weight of at least one rubber-elastic graft copolymer built up from B1) a graft base comprising a rubber-elastic polymer having a glass transition temperature of below -20 DEG C based on butadiene or C1-C10-acrylates, and optionally a crosslinking agent, and B2) a graft shell prepared by one-step or multistep copolymerisation of styrene, alpha -methylstyrene, acrylonitrile, methacrylonitrile and methyl methacrylate or mixtures of at least two of said monomers, C) from 5 to 75 parts by weight of at least one copolymer of C1) from 55 to 90% by weight of alpha -methylstyrene and C2) from 10 to 45% by weight of acrylonitrile or methacrylonitrile or mixtures thereof, D) from 0.1 to 5 parts by weight of at least one copolymer of D1) from 60 to 99% by weight of styrene and D2) from 1 to 40% by weight of at least one olefinically unsaturated monomer containing at least one carboxyl, anhydride, tert-butyl ester, hydroxyl or amino group, and E) from 0 to 60 parts by weight of at least one reinforcing filler. The moulding compositions can be prepared by melting together the starting components and are preferably used for the production of injection mouldings.

    48.
    发明专利
    未知

    公开(公告)号：DE3877681D1

    公开(公告)日：1993-03-04

    申请号：DE3877681

    申请日：1988-10-01

    Applicant: BASF AG

    Inventor： LAUSBERG DIETRICH DR ,  SEYDL WOLFGANG DR ,  KNOLL MANFRED ,  SEILER ERHARD DR ,  GUTSCHE HERBERT ,  KOLM PETER

    IPC: C08L51/00 ,  C08K7/14 ,  C08L67/00 ,  C08L67/02

    Abstract: Thermoplastic moulding materials comprises as essential components (A) 49-90 wt.% of a mixt. of (a1) 50-80 wt.% of a polyester, (a2) 10-25 wt.% of a graft polymer made from (a21) 50-90 wt.% of a backbone of a rubbery elastic polymer based on (a211) 95-99.9 wt.% of a 2-10C alkyl acrylate and (a212) 0.1-5 wt.% of a polyfunctional monomer with at least two olefinic, non-conjugated double bonds, and (a22) 10-50 wt.% grafted material comprising (a221) 50-90 wt.% of styrene or a substd. styrene of formula (I) in which R = 1-8C alkyl, H, or halogen, R1 = 1-8C alkyl or halgoen and n = 0,1,2 or 3 mixts. of these, (a222) wt.% (meth)acrylonitrile, and (a223) 0-10 wt.% monomers contg. carboxyl, carboxyl deriv., OH or epoxy gps.; and (a3) 10-25% of a copolymer of (a31) 55-90 wt.% of a styrene or substd. styrene of formula (I), (a32) 10-45 wt.% (meth)acrylonitrile and (a33) 0-10 wt.% monomers contg. carboxyl, carboxyl deriv., OH or epoxy gps.; and (B) 5-50 wt.% glass fibres, with the proviso that the proportion of component (a32) calculated on total wt. of component (a3) is at least 5 wt.% lower than the proportion by wt. of component (a222) calculated on the total wt. of component (a22).

    49.
    发明专利
    未知

    公开(公告)号：DE3877680D1

    公开(公告)日：1993-03-04

    申请号：DE3877680

    申请日：1988-10-01

    Applicant: BASF AG

    Inventor： LAUSBERG DIETRICH DR ,  SEILER ERHARD DR ,  HECKMANN WALTER DR ,  KNOLL MANFRED

    IPC: C08L51/00 ,  C08K7/14 ,  C08L67/00 ,  C08L67/02

    Abstract: Thermoplastic moulding materials comprising (A) 49-90 wt.% of a mixt. of (a1) 50-80 wt.% of a polyester, (a2) 10-25 wt.% of a graft polymer made from (a21) 50-90 wt.% of a backbone of a rubbery elastic polymer based on (a211) 95-99.9 wt.% of a 2-10C alkyl acrylate and (a212) 0.1-5 wt.% of a polyfunctional monomer with at least two olefinic, non-conjugated double bonds, and (a22) 10-50 wt.% grafted material comprising (a221) 5-50 wt.% of a first shell of styrene or substd. styrene of formula (I) in which R = 1-8C alkyl, H, or halogen, R1 = 1-8C alkyl or halogen and n = 0, 1, 2 or 3 or mixts. of these, and (a222) 50-95 wt.% of a second grafted shell of (a2221) 80-100 wt.% methacrylic acid or its esters whose polymers in the absence of (a21) have a Tg of more than 40 deg. C, and 0-20 wt.% further comonomers, and (a3) 10-25 wt.% of a copolymer of (a31) 50-90 wt.% of a styrene or subt. styrene of formula (I) or mixts. of these, (a32) 10-50 wt.% (meth)acrylonitrile and (a33) 0-10 wt.% monomers contg. carboxyl, carboxyl derivs., OH or epoxy gps.; and (B) 5-50 wt.% glass fibres.

    50.
    发明专利
    未知

    公开(公告)号：DE3871841D1

    公开(公告)日：1992-07-16

    申请号：DE3871841

    申请日：1988-03-29

    Applicant: BASF AG

    Inventor： TAUBITZ CHRISTOF DR ,  SEILER ERHARD DR ,  OSTERMAYER BERTRAM DR ,  WALTER HANS-MICHAEL DR ,  LAUSBERG DIETRICH DR

    IPC: C08G65/48 ,  C08L51/08 ,  C08L71/12

    Abstract: A thermoplastic moulding compsn. is obtd. by mixing at 200-320 deg. C for 0.5-30 mins., (A) 80-99.9 pts. wt., w.r.t. A+B, of a modified polyphenylene ether prepd. from (a1) 70-99.95 wt. % of a polymer with at least 30 wt. % of polyphenylene ether and at most 70% of a vinylaromatic polymer, (a2) 0.05-10% of (a21) a monomer contg. amide gps. and a polymerisable C=C bond, (a22) a monomer contg. lactam gps. and a polymerisable C=C bond, and/or (a23) an alpha,beta-unsatd. dicarbonyl cpd., and (a3) 0-20% of a comonomer which can react with (a1), and (B) 20-0.1 pts. wt., w.r.t. A+B, of poly-epsilon-caprolactone with Mw 400-100,000 and/or a polymer of structure (I), where the value of (r) is such that molec. wt. is 400-100,000.

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