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    1.
    发明专利
    未知

    公开(公告)号：DE59807696D1

    公开(公告)日：2003-05-08

    申请号：DE59807696

    申请日：1998-06-02

    Applicant: BASELL POLIOLEFINE SPA ,  NOVOLEN TECH HOLDINGS CV

    Inventor： HUEFFER DR ,  ROESCH DR ,  LANGHAUSER DR ,  LILGE DR ,  HINGMANN 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

    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).

    2.
    发明专利
    未知

    公开(公告)号：DE59708870D1

    公开(公告)日：2003-01-16

    申请号：DE59708870

    申请日：1997-09-09

    Applicant: BASELL POLIOLEFINE SPA ,  NOVOLEN TECH HOLDINGS CV

    Inventor： HUEFFER DR ,  MOLL DR ,  KOELLE DR ,  HINGMANN 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.

    3.
    发明专利
    未知

    公开(公告)号：DE50005328D1

    公开(公告)日：2004-03-25

    申请号：DE50005328

    申请日：2000-12-18

    Applicant: BASELL POLIOLEFINE SPA

    Inventor： SPAETHER DR ,  HUEFFER DR ,  LYNCH DR ,  BIDELL DR ,  ROESCH DR ,  SCHWEIER DR ,  HINGMANN DR ,  SEGUL DR ,  HEMMERICH DR ,  TREFFKORN INGO

    IPC: C08J5/00 ,  B01J21/10 ,  B01J21/14 ,  B01J23/02 ,  B01J23/06 ,  B01J23/22 ,  B01J35/10 ,  C08F4/18 ,  C08F4/634 ,  C08F4/642 ,  C08F4/654 ,  C08F10/00 ,  C08F10/06 ,  C08F110/06 ,  D01F6/06

    Abstract: Catalyst systems of the Ziegler-Natta type comprise as active constituentsa) a solid component comprising a compound of titanium or vanadium, a compound of magnesium, a particulate inorganic oxide as support and an internal electron donor compound,and as cocatalystb) an aluminum compound andc) if desired, a further, external electron donor compound,wherein the particulate, inorganic oxide used has a specific surface area of from 350 to 1000 m2/g and a mean particle diameter {overscore (D in the range from 5 to 60 mum and comprises particles which are composed of primary particles having a mean particle diameter {overscore (d in the range from 1 to 10 mum and contain voids or channels between the primary particles, where the macroscopic proportion of voids or channels having a diameter of greater than 1 mum in the particles of the inorganic oxides is in the range from 5 to 30% by volume and the molar ratio of the compound of magnesium to the particulate, inorganic oxide is from 0.5:1 to 2.0:1.

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