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    PLASTIC COMPOSITION PARTIALLY CROSSLINKED BY UNSATURATED ESTER
    3.
    发明专利
    PLASTIC COMPOSITION PARTIALLY CROSSLINKED BY UNSATURATED ESTER 失效

    公开(公告)号：JPH10158340A

    公开(公告)日：1998-06-16

    申请号：JP30595397

    申请日：1997-11-07

    Applicant: BASF AG

    Inventor： SEELERT STEFAN ,  ROESCH JOACHIM ,  RUEMPLER KLAUS-DIETER ,  KERSTING MEINOLF ,  HUBER KARL

    IPC: C08J3/24 ,  C08F255/02 ,  C08F287/00 ,  C08J5/00 ,  C08K5/103 ,  C08L23/12 ,  C08L23/16 ,  C08L51/06 ,  D01F6/06 ,  D01F6/62

    Abstract: PROBLEM TO BE SOLVED: To obtain the subject composition capable of manifesting a high stiffness, excellent thermal stability, extremely low gel content, etc., by reacting a polymer containing a propylene homopolymer and a propylene copolymer with a compound such as a polyfunctional (meth)acrylic acid derivative. SOLUTION: This composition is obtained by reacting (A) a polymer containing (i) 60-92wt.% propylene homopolymer and (ii) 8-40wt.% propylene copolymer containing 15-70wt.% comonomer of a 2-10C 1-alkene introduced into the polymer chain based on the amount of the copolymer, with (B) a compound of the formula [R is H or a 1-4C alkyl; X is a 1-30C alkyl, etc.; (n) is 2 or 3] at 180-280 deg.C under 1-100 bar pressure within the range of 0.2-10min average retention time of the reaction mixture. The composition has 0.1-100g/10min melt flow index at 230 deg.C under 2.16kg load, and

    5.
    发明专利
    未知

    公开(公告)号：DE4432798A1

    公开(公告)日：1996-03-21

    申请号：DE4432798

    申请日：1994-09-15

    Applicant: BASF AG

    Inventor： MUELLER PATRIK ,  KERSTING MEINOLF

    IPC: C08F2/34 ,  C08F4/642 ,  C08F8/50 ,  C08F210/06 ,  C08F210/16 ,  C08F297/08 ,  C08L23/16 ,  C08L53/00 ,  D01F6/30

    Abstract: Propylene-ethylene (EP) copolymers with a high rubber content (I) are obtd. by 2-stage gas-phase polymerisation in an agitated solid bed with the aid of a Ziegler-Natta catalyst system contg. a sold Ti-contg. component and an Al cpd. as cocatalyst. The process comprises: (1) polymerisation of propylene at 15-40 bar (P1) and 50-90 degrees C with a residence time of 0.5-5 hrs., followed by sepn. of the polymer obtd., and (2) polymerisation of a mixt. of ethylene (E) and propylene (P) in the presence of the stage 1 prod. and a 1-8C alkanol, for 0.5-5 hrs. at 60-100 degrees C and at a pressure (P2) in the range of 5-30 bar and at least 2 bar below P1; the ratio of partial pressures of P:E in stage (2) is (0.5:1)-(5:1), and the wt. ratio for monomer conversion in stages (1):(2) = (0.9:1)-(0.4:1). Also claimed is: (i) the above process as such, and (ii) film, fibres and moulded prods. obtd. from (I).

    6.
    发明专利
    未知

    公开(公告)号：DE19813399A1

    公开(公告)日：1999-09-30

    申请号：DE19813399

    申请日：1998-03-26

    Applicant: BASF AG

    Inventor： LANGHAUSER FRANZ ,  APPLEYARD DAVID ,  HORTON MURRAY ,  HINGMANN ROLAND ,  SCHWEIER GUENTHER ,  RAUSCHENBERGER VOLKER ,  HENNIG INGOLF ,  LILGE DIETER ,  SCHOENE WERNER ,  KERSTING MEINOLF

    IPC: C08F2/34 ,  C08F4/02 ,  C08F4/658 ,  C08F210/06 ,  C08F210/16 ,  D01F6/30

    Abstract: A random copolymer (I) of propylene with other 2-10 C 1-alkenes comprises 0.7-1.4 wt.% ethylene comonomer or 0.7-3.0 wt.% 4-10 C 1-alkene. (I) has a solubility in cold xylene of 1.0-2.5 wt.% or 0.75-2.0 wt.% when the comonomer is ethylene or a 4-10C 1-alkene respectively. Independent claims are included for: (i) a process for the preparation of (I) by the gas phase polymerisation of propylene and a 2-10 C 1-alkene at 50-100 degrees C and 15-40 bar in the presence of a Ziegler-Natta catalyst containing: (A) a titanium containing solid component containing at least a halogen containing magnesium compound and an electron donor; (B) an aluminum compound; and (C) at least a further electron donor compound. The ratio of partial pressure of propylene to comonomer is 400:1-15:1 and the molar ratio of (B) to (C) is 20:1-2:1; and (ii) film, fiber or molded articles containing (I).

    10.
    发明专利
    未知

    公开(公告)号：AT156143T

    公开(公告)日：1997-08-15

    申请号：AT94118091

    申请日：1994-11-17

    Applicant: BASF AG

    Inventor： KERSTING MEINOLF ,  HUNGENBERG KLAUS-DIETER ,  KOELLE PETER ,  KERTH JUERGEN

    IPC: C08F4/642 ,  C08F4/649 ,  C08F4/655 ,  C08F4/658 ,  C08F10/00

    Abstract: Catalyst systems of the Ziegler-Natta type containing, as active constituents a) a titanium-containing solid component containing titanium, magnesium, halogen and a carboxylic ester (carboxylate) as electron-donor compound, and, as catalyst b) an aluminium compound and c) optionally a further electron-donor compound, where a compound of the formula I Rm1A1 - (OCOR )m2 (I> in which R and R are identical or different and are each a hydrogen radical or a C1-C8 alkyl radical and m1 and m2 are each the number 1 or 2 and they add up to the number 3, is used during preactivation of the titanium-containing component a) with the cocatalyst as aluminium compound b).

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