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    Thermoplastic moulding materials - contains modified polyphenylene ether, partly-crystalline propylene] or block copolymer and opt. impact-modifying rubber, polyamide, etc.
    51.
    发明专利
    Thermoplastic moulding materials - contains modified polyphenylene ether, partly-crystalline propylene] or block copolymer and opt. impact-modifying rubber, polyamide, etc. 未知

    公开(公告)号：DE3940785A1

    公开(公告)日：1991-06-13

    申请号：DE3940785

    申请日：1989-12-09

    Applicant: BASF AG

    Inventor： SEILER ERHARD DR ,  TAUBITZ CHRISTOF DR ,  LAUSBERG DIETRICH DR

    IPC: C08L23/10 ,  C08L51/08 ,  C08L53/00

    Abstract: Thermoplastic moulding materials (I) are claimed, contg. mainly (A) 10-70 wt.% modified polyphenylene ether (PPE) and (B) 30-90 wt.% partly-crystalline polypropylene (PP) and/or a partly-crystalline block copolymer contg. at least 50 wt.% (D) 0-20 wt.% thermoplastic polyamide and (E) 0-60 wt.% fibrous or particulate filler and/or additives etc. (I), contg. at least one of (D) or (E), are produced by a continuous process in an extruder, by (i) mixing (A), (B) and (C) in a first zone at 240-350 deg.C for a mean residence time of 0.2-30 mins., (ii) adding (D) and (E) at 250-350 deg.C in at least one further zone of the extruder, and homogenising and extruding the mixt. USE/ADVANTAGE - (I) are useful for the prodn. of mouldings, film and fibre (claimed); moulded prods. obtd. from (I) are claimed as such. (I) have a good overall spectrum of mechanical properties and can be moulded with no problems (e.g. mould corrosion or delamination - contrast prior-art PPE/PP blends); the prods. are useful, e.g. in the automobile industry.

    52.
    发明专利
    未知

    公开(公告)号：DE3918982A1

    公开(公告)日：1990-12-13

    申请号：DE3918982

    申请日：1989-06-10

    Applicant: BASF AG

    Inventor： LAUSBERG DIETRICH DR ,  MUELLER WOLFGANG F DR ,  SEILER ERHARD DR

    IPC: C08K5/09 ,  C08L23/10 ,  C08L23/26 ,  C08L33/00 ,  C08L33/02 ,  C08L33/04 ,  C08L77/00

    Abstract: The invention relates to novel polypropylene-polyamide moulding compositions which comprise, based on 100 parts by weight of the moulding compositions, …… A) from 10 to 89.9 parts by weight of at least one polypropylene homopolymer and/or copolymer, … B) from 10 to 89.9 parts by weight of at least one polyamide, … C) from 0.1 to 5.0 parts by weight of at least one olefinically unsaturated carboxylic acid and/or olefinically unsaturated carboxylic acid derivative, … D) from 0 to 30.0 parts by weight of an impact modifier, and … E) from 0 to 60.0 parts by weight of a reinforcing agent and/or additive. …… The polypropylene-polyamide moulding compositions are prepared by melting together, in a first reaction step, components (A), (C) and, if used, (D) at a temperature in the range from 200 to 300 DEG C, and then, in a second reaction step, introducing component (B) and, if used, component (D) and/or (E) into the resultant modified melt, and melting the components together. … The resultant moulding compositions are used for the production of mouldings.

    55.
    发明专利
    未知

    公开(公告)号：DE3903537A1

    公开(公告)日：1990-08-09

    申请号：DE3903537

    申请日：1989-02-07

    Applicant: BASF AG

    Inventor： LAUSBERG DIETRICH DR ,  STEINBERGER ROLF DR ,  HECKMANN WALTER DR ,  SCHULZ HARALD

    IPC: A43B5/04 ,  C08K7/04 ,  C08L75/00 ,  C08L75/04

    Abstract: Low-temperature impact-resistant, thermoplastic polyurethane elastomer compositions having good flow properties and comprising A) from 5 to 95 parts by weight of at least one thermoplastic polyurethane elastomer (A) having a Shore A hardness of less than 95 and B) from 95 to 5 parts by weight of at least one thermoplastic polyurethane elastomer (B) having a Shore A hardness of greater than 98, the parts by weight of (A) and (B) adding up to 100 parts by weight, and C) from 0 to 60 % by weight, based on the weight of (A) and (B), of a reinforcing filler, are prepared by melting together the polyurethane elastomers (A) and (B) at temperatures of from 140 to 250 DEG C, preferably in an extruder, and are particularly suitable for the production of ski boots and injection mouldings for motor vehicles.

    60.
    发明专利
    未知

    公开(公告)号：DE2212962A1

    公开(公告)日：1973-09-20

    申请号：DE2212962

    申请日：1972-03-17

    Applicant: BASF AG

    Inventor： DEUSCHEL WALTER DR ,  GULBINS ERICH DR ,  HAUSS ALFRED DR ,  LAUSBERG DIETRICH DR ,  SIGMUND WILHELM DR

    IPC: C08F14/00 ,  C08F2/00 ,  C08F2/18 ,  C08F14/06 ,  C08F3/30

    Abstract: 1414714 Suspension polymerization BADISCHE ANILIN- & SODA-FABRIK AG 16 March 1973 [17 March 1972] 12765/73 Heading C3P In the polymerization of vinyl chloride, optionally with up to 30% by weight of one or more comonomers, in aqueous suspension in the presence of a free-radical initiator and a watersoluble protective colloid in a stirred reactor, the polymerization mixture is heated to the desired polymerization temperature in a heat-up stage which constitutes not more than one third of the time required for the full polymerization cycle, whereupon polymerization is carried out in a polymerization stage at a substantially constant temperature, while (a) using one or more free-radical initiators having a half-life at 50‹ C. of less than 10 hours, (b) maintaining the polymerization mixture at a pH of less than 8 during the heat-up stage, and (c) maintaining the temperature of the reactor walls at not more than 20‹ C. above the temperature of the polymerization mixture during the heat-up stage and maintaining the temperature of the reactor walls at a lower value than that of the polymerization mixture during the polymerization stage. At least 30% of the monomers are grafted on to the protective colloid in the heat up stage.

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