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    71.
    发明专利
    未知

    公开(公告)号：DE3889303D1

    公开(公告)日：1994-06-01

    申请号：DE3889303

    申请日：1988-11-30

    Applicant: BASF AG

    Inventor： OSTERMAYER BERTRAM DR ,  BAUMGARTNER EHRENFRIED DR ,  BUESCHL RAINER DR ,  BRANDT HERMANN DR ,  BOEHLKE KLAUS DR ,  SEILER ERHARD DR ,  MCKEE GRAHAM EDMUND DR

    IPC: C08L25/04 ,  C08L51/04 ,  C08L71/12 ,  C08L77/00

    Abstract: Reinforced thermoplastic molding materials containing, as essential components, (A) from 40 to 94 parts by weight of a polymer component of (a1) from 10 to 90% by weight of polyphenylene ether and (a2) from 10 to 90% by weight, based in each case on A, of a styrene polymer toughened with an acrylate rubber or with an unhydrogenated or hydrogenated polymer of a conjugated diene, (B) from 1 to 20 parts by weight of a copolymer of (b1) from 70 to 99.9% by weight of a monomer from the group consisting of styrene, alpha -methylstyrene and styrene alkylated in the nucleus or a mixture of these monomers, (b2) from 0.1 to 30% by weight of one or more compounds from the group consisting of tert-butyl acrylate and tert-butyl methacrylate, or one or more compounds from the group of compounds of the general formula I I where R1 is hydrogen or methyl and R2, R3 and R4 are each an alkyl or alkoxy group of not more than 4 carbon atoms, or of the general formula II II where n is an integer from 1 to 4 and R5, R6 and R7 are each one of the radicals stated for R2 or are each -O(CH2-CH2-O)mR8, where R8 is C1-C4-alkyl and m is 1, 2, 3 or 4, and (b3) from 0 to 10% by weight, based on the copolymer, of a further ethylenically unsaturated monomer which is copolymerizable with b1 and b2, and (C) from 5 to 50 parts by weight of a reinforcing agent, the number of parts by weight being based on 100 parts by weight of the sum of A, B and C, are prepared and used for the production of moldings.

    73.
    发明专利
    未知

    公开(公告)号：ES2043216T3

    公开(公告)日：1993-12-16

    申请号：ES90120067

    申请日：1990-10-19

    Applicant: BASF AG

    Inventor： SEILER ERHARD DR ,  RUEMPLER KLAUS-DIETER DR ,  JUNG NORBERT ,  HAARDT UDO ,  HENNING RAINER DR ,  HAMBRECHT JUERGEN DR

    IPC: B60R19/03 ,  B60R19/18 ,  B60R19/22

    Abstract: The invention relates to a polypropylene-based bumper system comprising a bumper support A (1) comprising glass fibre-reinforced polypropylene, an energy-absorbing foam core B (2) comprising foamed polypropylene, and a tough shell C (3) which comprises EP rubber-modified polypropylene and may, if desired, be painted. The bumper system can be recycled by mechanical comminution, extrusion and granulation. The granules can be used to produce injection mouldings having good mechanical properties.

    74.
    发明专利
    未知

    公开(公告)号：DE4107665A1

    公开(公告)日：1992-09-10

    申请号：DE4107665

    申请日：1991-03-09

    Applicant: BASF AG

    Inventor： BROSIUS SIBYLLE DR ,  SEILER ERHARD DR ,  SCHWAGER HARALD DR ,  KRESS GERHARD DR ,  SCHLEMMER LOTHAR

    IPC: C08F255/02

    Abstract: Partially crosslinked polymer composition containing a) a polymer comprising from 25 to 95% by weight of polypropylene and from 5 to 75% by weight of a propylene copolymer containing copolymerized C2-C10-alk-1-enes, where the comonomer content is from 1 to 45% by weight, based on the total polymer, b) a random ethylene copolymer containing from 5 to 20% by weight of copolymerized C3-C10-alk-1-enes and having a density at room temperature of from 0.89 to 0.925 g/cm and c) an organosilane compound of the formula (I> A4-n-SiRn (I> in which the A radicals are identical or different and are acrylates or methacrylates or vinyl groups, the R radicals are identical or different and are C1-C8-alkoxy or C1-C8-acetoxy groups, and n is the number 1, 2 or 3, obtainable by reacting a polymer mixture of the polymer a) and the random ethylene copolymer b) with the organosilane compound c) in the presence of a free-radical initiator and in the presence of a condensation catalyst, at temperatures of from 180 to 280 DEG C, pressures of from 1 to 100 bar and mean residence times of the reaction mixture of from 0.2 to 10 minutes.

    75.
    发明专利
    未知

    公开(公告)号：DE4107635A1

    公开(公告)日：1992-09-10

    申请号：DE4107635

    申请日：1991-03-09

    Applicant: BASF AG

    Inventor： BROSIUS SIBYLLE DR ,  RUEMPLER KLAUS-DIETER DR ,  SEILER ERHARD DR ,  HAHN SUSANNE DR ,  HUBER KARL ,  WERNER RAINER ALEXANDER DR

    IPC: C08F255/02

    Abstract: A partially crosslinked polymer composition having a melt flow index of from 0.1 to 50 g/10 min at 230 DEG C. under a weight of 2.16 kg and comprising a) a polymer comprising from 25 to 95% by weight of polypropylene and 5 to 75% by weight of a propylene copolymer with copolymerized C2-C10-alk-1-enes, the comonomer content being from 1 to 45% by weight, based on the total polymer, b) an organosilane compound of the formula (I) A4-nSiRn(i) where A are identical or different acrylates or methacrylates or vinyl groups, R are identical or different C1-C8-alkoxy or C1-C8-acetoxy groups, and n is 1, 2 or 3, obtainable by reacting the polymer a) with the organosilane compound b) in the presence of a free-radical initiator and in the presence of a condensation catalyst at from 180 DEG to 280 DEG C., and at from 1 to 100 bar and at a mean residence time of the reaction mixture of from 0.2 to 10 minutes, has, in particular, high notched impact strength, increased puncture resistance and improved weld line strength.

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