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    Catalyst systems for comb-like polypropylene prodn.
    37.
    发明专利
    Catalyst systems for comb-like polypropylene prodn. 未知

    公开(公告)号：DE4425787A1

    公开(公告)日：1996-01-25

    申请号：DE4425787

    申请日：1994-07-21

    Applicant: BASF AG

    Inventor： SEELERT STEFAN DR ,  FISCHER DAVID DR ,  MARCZINKE BERND LOTHAR DR ,  LANGHAUSER FRANZ DR ,  KERTH JUERGEN DR ,  MUELLER HANS-JOACHIM DR

    IPC: C08F4/639 ,  C08F4/6392 ,  C08F4/642 ,  C08F4/76 ,  C08F10/00 ,  C08F110/06 ,  C08F10/06 ,  C08L23/12

    Abstract: A process is claimed for the prodn. of comb-like polypropylene (PP) of formula (I) in the presence of catalyst systems contg., as active component (A), bridged metallocenes of formula (II): M = Ti, Zr, Hf, V, Nb or Ta; X = F, Cl, Br, I, H, 1-10C alkyl, 6-15C aryl or -OR5 (with R5 = 1-10C alkyl, 6-15C aryl, or alkaryl, aralkyl, fluoroalkyl or fluoroaryl with 1-10C alkyl gps. and 6-20C aryl gps.); R1-R4 = H, 1-10C alkyl, 7-15C cycloalkyl (opt. substd. with 1-6C alkyl), 6-15C aryl or arylalkyl, -Si(R6)3 (with R6 = 1-10C alkyl, 6-15C aryl or 3-10C cycloalkyl); or two adjacent R gps. may form a 4-15C cyclic gp.; A = -O-, -S-, -NR7-, -PR7- or a gp. of formula (with R8-R11 = as for R1-R4, including Si(R12)3 with R12 as for R6, R7 = 1-10C alkyl, 6-15C aryl, 3-10C cycloalkyl or Si(R13)3 with R13 = 1-10C alkyl, 6-15C aryl, 3-10C cycloalkyl or alkylaryl); Y = Si, Ge, Sn or C; R14 = H, 1-10C alkyl, 3-10C cycloalkyl or 6-10C aryl; m, n = positive integers; O = 1-50; p = 1, 2, 3 or 4.

    Partly crosslinked polypropylene@ materials useful for fibres
    38.
    发明专利
    Partly crosslinked polypropylene@ materials useful for fibres 未知

    公开(公告)号：DE4422164A1

    公开(公告)日：1996-01-04

    申请号：DE4422164

    申请日：1994-06-24

    Applicant: BASF AG

    Inventor： MARCZINKE BERND LOTHAR DR ,  HINGMANN ROLAND DR ,  KOELLE PETER DR ,  MUELLER HANS-JOACHIM DR ,  SEELERT STEFAN DR

    IPC: C08F8/00 ,  C08K5/103 ,  C08L23/14 ,  C08F255/00 ,  C08J3/24

    Abstract: Partly crosslinked plastic materials (A) with a melt flow index 230/2.16 of 0.1-100 g/10 minutes are obtd from: (a1) a polymer contg: (a1.1) 25-97 wt% of a copolymer of propylene with 0.1-15 wt% 2-10C alkene-1, and (a1.2) 3-75 wt% of a copolymer of propylene with 15-80 wt% 2-10C alkene-1; or (a2) a polymer contg: (a2.1) 25-97 wt% propylene homopolymer, and (a2.2) 3-75 wt% copolymer (a1.2) as above; or (a3) a propylene homopolymer with a melt flow index 230/2 of 0.1-100 g/10 minutes; or (a4) a statistical propylene copolymer contg less than 15 wt% 2-10C alkene-1 comonomer; and (b) a cpd of formula: (H2C=CR-COO)nX (I) R = H or 1-4C alkyl; X = 1-30C alkyl or 7-30C aralkyl, opt contg in-chain O and/or N atom(s); and n = 2 or 3; and these materials (A) are obtd by reacting (a1), (a2), (a3) or (a4) with cpd (b) at 180-280 deg C and 1-100 bar for a mean residence time of 0.2-10 minutes. Also claimed are: (i) a process for the prodn of (A) by reacting the above polymers with (b) at 190-260 deg C and 1-60 bar for a mean residence time of 0.2-5 minutes, pref immediately after prodn of the polymer in a mixer connected to the polymerisation reactor; and (ii) films, fibres and mouldings made from (A).

    Low-mol.wt. polyphenylene ether] moulding materials - contain PPE with min. 8000-30,000 impact modified polystyrene with specified particle size distribution, and opt. normal additives, etc. e.g. fire retardant and/or pigment
    40.
    发明专利
    Low-mol.wt. polyphenylene ether] moulding materials - contain PPE with min. 8000-30,000 impact modified polystyrene with specified particle size distribution, and opt. normal additives, etc. e.g. fire retardant and/or pigment 未知

    公开(公告)号：DE4209029A1

    公开(公告)日：1993-09-23

    申请号：DE4209029

    申请日：1992-03-20

    Applicant: BASF AG

    Inventor： ZELTNER DORIS DR ,  SEELERT STEFAN DR ,  WEISS ROBERT DR

    IPC: C08L51/04 ,  C08L71/12 ,  C08L85/02

    Abstract: Thermoplastic moulding materials (I) contain (A) 5-90 wt.% polyphenylene ether (PPE) with Mw 8000-30,000, (B) 5-94 wt.% impact-modified vinylaromatic polymer with rubber content 2-30 wt.%, in which the soft component has mean particle dia. 1.5-6.6 microns, with 15-95 wt.% of the particles having mean dia. 0.2-2 microns and 5-85 wt.% having mean dia. 4-7 microns, and (C) 0-60 wt.% normal additives and process aids. Pref. (C) is a fire retardant additive (1-30 wt.%) and/or a pigment (0.1-15 wt.%). (A) has Mw 12,000-25,000. In (B), 50-95 wt.% of the soft component has particle dia. 0.2-2 microns and 5-50 wt.% has dia. 4-7 microns. Pref. (A) is poly-(2,6-dimethyl-1,4-phenylene ether) (PPE) or a homologue thereof. (B) is impact-modified polystyrene (HIPS), prepd. e.g. by polymerisation of styrene in the presence of polybutadiene, polyisoprene etc. Pref. fire retardant is Ph3PO, Ph3PO4, Mobil Antiblaze 19 (RTM), etc. USE/ADVANTAGE - Used for the prodn. of fibres, film and moulded prods. (claimed) Provides modified PPE moulding materials with good processing properties (no delamination, homogeneous pigmentation), balanced mechanical properties (esp. good multiaxial impact strength) and good stress cracking resistance.

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