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    12.
    发明专利
    未知

    公开(公告)号：DE19545499A1

    公开(公告)日：1997-06-12

    申请号：DE19545499

    申请日：1995-12-06

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN DR ,  KERSTING MEINOLF DR ,  LANGHAUSER FRANZ DR ,  WERNER RAINER ALEXANDER DR ,  MUELLER PATRIK DR ,  KERTH JUERGEN DR

    IPC: C08F4/658 ,  C08F4/02 ,  C08F4/64 ,  C08F4/654 ,  C08F210/06 ,  C08F210/16 ,  D01F6/06 ,  C08L23/14 ,  D01F6/30

    Abstract: Statistical propylene copolymers with 2-10C alk-1-ene comonomer (alkene) units are claimed, obtained by polymerisation of propylene and alkene at 50-100 degrees C and 15-40 bar with a mean residence time of 0.5-5 hrs., in presence of a Ziegler-Natta catalyst with: (a) a titanium-containing solid component containing a magnesium compound, a halogen, a silica gel support and a carboxylate ester as electron donor; plus (b) an aluminium compound; and (c) another electron donor as cocatalysts. The silica gel support has an average particle diameter of 5-200 mu m and an average primary particle diameter of 1-10 mu m, and contains 5-20 vol% of pores or channels with an average diameter of 1-10 mu m. Also claimed is a process for the production of propylene copolymers.

    14.
    发明专利
    未知

    公开(公告)号：DE19637367A1

    公开(公告)日：1998-03-19

    申请号：DE19637367

    申请日：1996-09-13

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN DR ,  MOLL ULRICH DR ,  KOELLE PETER DR ,  HINGMANN ROLAND DR

    IPC: C08F4/642 ,  C08F4/646 ,  C08F4/654 ,  C08F10/00 ,  C08F110/06

    Abstract: Ziegler-Natta-type catalyst system contains (a) a solid component containing titanium (Ti), obtained by reacting a Ti compound with a compound of magnesium (Mg), a halogen, an inorganic oxide as carrier, a 1-8 carbon (C) alkanol and a carboxylic ester as electron donor; and, as co-catalyst, (b) an aluminium (Al) compound and (c) optionally another electron donor compound as active constituents. In the preparation of (a), the individual components are reacted in the presence of an aromatic hydrocarbon as solvent. Also claimed are: (i) a method of producing the catalyst system; (ii) propylene polymers prepared using this catalyst system; and (iii) films, fibres and mouldings made from these polymers. Preferably component (a) is prepared in a 7-12 C alkylbenzene, especially ethylbenzene. The inorganic oxide has a pH of 1-6.5 and average particle diameter of 5-200 mu m and contains 5-30 volume-% pores or ducts with an average diameter of 1-20 mu m. It preferably is spray dried and especially consists of silica gel. The Al compound (b) is a tri-(1-8 C alkyl)-Al compound. Component (c) is an organo-silicon compound of formula R nSi(OR )4-n (I); R = 1-20 C alkyl, 5-7-membered cycloalkyl (optionally mono-substituted by 1-10 C alkyl) or 6-20 C aryl or arylalkyl; R = 1-20 C alkyl; n = 1, 2 or 3.

    15.
    发明专利
    未知

    公开(公告)号：DE19623226A1

    公开(公告)日：1997-12-18

    申请号：DE19623226

    申请日：1996-06-11

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN DR ,  BIDELL WOLFGANG DR ,  MUELLER PATRIK DR ,  MOLL ULRICH DR ,  HINGMANN ROLAND DR ,  SCHWEIER GUENTHER DR

    IPC: C08F4/654 ,  C08F4/02 ,  C08F4/646 ,  C08F4/658 ,  C08F10/00 ,  C08F110/06

    Abstract: Ziegler-Natta type catalyst system (ZNC), containing (a) a titanium-based solid component containing compounds of Ti and magnesium, a halogen, an inorganic oxide support (IOS) and a carboxylate ester as electron donor, (b) an aluminium compound and (c) optionally another electron donor, in which the oxide (IOS) has a pH of 1-6, an average particle diameter of 5-200 microns and an average primary particle diameter of 1-20 mu m, and contains pores or channels with an average diameter of 0.1-20 mu m in amounts of 5-30 vol%. Also claimed is (i) a process for the production of ZNC by interacting components (a), (b) and (c) together at 0-150 degrees C and 1-100 bar; (ii) a process for the production of polymers of 2-20C alk-1-enes by polymerisation of the alkene (preferably propylene) and optionally other comonomers at 20-150 degrees C and 1-100 bar in presence of (ZNC); (iii) polymers of propylene obtained by this process.

    17.
    发明专利
    未知

    公开(公告)号：AT198755T

    公开(公告)日：2001-02-15

    申请号：AT97108872

    申请日：1997-06-03

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN DR ,  BIDELL WOLFGANG DR ,  MUELLER PATRIK DR ,  MOLL ULRICH DR ,  HINGMANN ROLAND DR ,  SCHWEIER GUENTHER DR

    IPC: C08F4/654 ,  C08F4/02 ,  C08F4/646 ,  C08F4/658 ,  C08F10/00 ,  C08F110/06

    Abstract: Ziegler-Natta type catalyst system (ZNC), containing (a) a titanium-based solid component containing compounds of Ti and magnesium, a halogen, an inorganic oxide support (IOS) and a carboxylate ester as electron donor, (b) an aluminium compound and (c) optionally another electron donor, in which the oxide (IOS) has a pH of 1-6, an average particle diameter of 5-200 microns and an average primary particle diameter of 1-20 mu m, and contains pores or channels with an average diameter of 0.1-20 mu m in amounts of 5-30 vol%. Also claimed is (i) a process for the production of ZNC by interacting components (a), (b) and (c) together at 0-150 degrees C and 1-100 bar; (ii) a process for the production of polymers of 2-20C alk-1-enes by polymerisation of the alkene (preferably propylene) and optionally other comonomers at 20-150 degrees C and 1-100 bar in presence of (ZNC); (iii) polymers of propylene obtained by this process.

    18.
    发明专利
    未知

    公开(公告)号：DE19726796A1

    公开(公告)日：1999-01-07

    申请号：DE19726796

    申请日：1997-06-24

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN DR ,  ROESCH JOACHIM DR ,  LANGHAUSER FRANZ DR ,  LILGE DIETER DR ,  HINGMANN ROLAND DR

    IPC: C08J5/18 ,  C08F4/02 ,  C08F4/646 ,  C08F6/04 ,  C08F10/00 ,  C08F10/06 ,  C08F210/16 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  D01F6/06 ,  D01F6/30 ,  C08F210/06

    Abstract: Propylene polymers (I) contain a matrix of propylene homopolymer and a copolymer of propylene and other alkenes. The novelty is that the polymers satisfy certain condition(s) when separated by tacticity and comonomer distribution of the polymer chain. They are first dissolved in boiling xylene, then the solution is cooled to 25 degrees C at a rate of 10 degrees C/hour. The polymers are separated, into fractions of different solubility at increasing temperature, whilst the matrix remains undissolved on heating the cooled solution to 80 degrees C. The conditions are that the amount of matrix remaining undissolved on further heating is (i) > 20 wt.% at 112 degrees C; (ii) > 8 wt.% at 117 degrees C and/or > 1 wt.% at 122 degrees C. Also claimed are (1) a method of producing (I); and (2) films, fibres or mouldings made from (I).

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