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    SYNDIOTACTIC POLYOLEFIN
    1.
    发明专利
    SYNDIOTACTIC POLYOLEFIN 失效

    公开(公告)号：JPH11315110A

    公开(公告)日：1999-11-16

    申请号：JP3898199

    申请日：1999-02-17

    Applicant: HOECHST AG

    Inventor： WINTER ANDREAS ,  ROHRMANN JUERGEN ,  ANTBERG MARTIN ,  DOLLE VOLKER ,  SPALECK WALTER

    IPC: C07F17/00 ,  C07C15/60 ,  C08F4/60 ,  C08F4/602 ,  C08F4/6192 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/64 ,  C08F4/642 ,  C08F4/659 ,  C08F4/6592 ,  C08F4/68 ,  C08F8/00 ,  C08F10/00 ,  C08F110/06

    Abstract: PROBLEM TO BE SOLVED: To obtain a syndiotactic polyolefin having a high molecular weight, a narrow distribution of molecular weight and an extremely high syndiotatic index by (co)polymerizing an olefin in the presence of a catalyst containing a specific transition metal component. SOLUTION: An olefin represented by the formula R -CH=CHR (R and R are each H or a 1-28C alkyl) is (co)polymerized in a solution state or a suspension state or in the vapor phase in the presence of a catalyst comprising (A) a transition metal component comprising a metallocene compound represented by formula I (M is Ti, Zr or the like; R and R are each H, a halogen or the like; R and R are each a mutually different mononuclear or polynuclear hydrocarbon, with the proviso that either one of R and R is 9- fluorenyl; R is Sn, CO or the like) and (B) an aluminoxane represented by formula II [R is phenyl, benzyl or the like; (n) is 2-50] and/or formula III at-60 to +200 deg.C under 0.5-100 bar. (Diphenylmethylene) (9-fluorenyl) (cyclopentadieny) zirconium dichloride, or the like, are preferred as the compound represented by formula I.

    PREPARATION OF OLEFIN POLYMER AND CATALYST USED THEREFOR
    2.
    发明专利
    PREPARATION OF OLEFIN POLYMER AND CATALYST USED THEREFOR 失效

    公开(公告)号：JPH11209420A

    公开(公告)日：1999-08-03

    申请号：JP32095398

    申请日：1998-11-11

    Applicant: HOECHST AG

    Inventor： WINTER ANDREAS ,  ANTBERG MARTIN ,  SPALECK WALTER ,  ROHRMANN JUERGEN ,  DOLLE VOLKER

    IPC: C08F4/642 ,  C08F4/60 ,  C08F4/602 ,  C08F4/619 ,  C08F4/6192 ,  C08F4/645 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F210/06

    Abstract: PROBLEM TO BE SOLVED: To obtain a polymer having a narrow mol.wt. distribution, a high stereospecificity, m.p., crystallinity, and hardness, by carrying out an olefin (co)polymerization in the presence of a catalyst comprising a specific metallocene as a transition metal compd., an aluminoxane as a cocatalyst, and/or a specific salt-like compd. SOLUTION: A salt-like compd. used is one expressed by formulae II or III (R' is an optionally fluorinated aryl; and X is 1-3). A metallocene is a compd. expressed by the formula. In the formula, M is a group IVb, Vb, or VIb metal in the periodic table, R and R are each the same or different, H, a 1-10C alkyl group or the like; R and R are each the same or different. H, halogen, a 1-10C alkyl group or the like; R and R are each the same or different, of the same excluding H, as defined in R and R ; R is -Ge-, -O-, or the like; R , R , and R are each the same or different, H, halogen, a 1-10C alkyl group or the like; and, m and n are each the same or different, 0, 1, or 2.

    METALLOCENE COMPOUND
    3.
    发明专利
    METALLOCENE COMPOUND 失效

    公开(公告)号：JPH11322775A

    公开(公告)日：1999-11-24

    申请号：JP7593699

    申请日：1999-03-19

    Applicant: HOECHST AG

    Inventor： WINTER ANDREAS ,  ROHRMANN JUERGEN ,  ANTBERG MARTIN ,  DOLLE VOLKER ,  SPALECK WALTER

    IPC: C07F17/00 ,  C07C15/60 ,  C08F4/60 ,  C08F4/602 ,  C08F4/6192 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/64 ,  C08F4/642 ,  C08F4/659 ,  C08F4/6592 ,  C08F4/68 ,  C08F8/00 ,  C08F10/00 ,  C08F110/06

    Abstract: PROBLEM TO BE SOLVED: To obtain a metallocene compound useful as a catalyst for synthesizing, in a high yield, high-molecular weight syndiotactic polyolefins with narrow molecular weight distribution and high syndiotactic index. SOLUTION: This new compound is a compound of the formula XR -R -R Y [X and Y are each H or Li; R and R are each a mononuclear or polynuclear hydrocarbon, one of them being 9-fluorenyl; R is of the formula R M M (R and R are each H, a halogen or the like; M is silicon, germanium or the like) or the like], pref. a compound of formula I (M is titanium, zirconium or the like; R and R are each H, a halogen 1-10C alkyl or the like; however excepting the case that R is isopropylidene, and R and R are nonsubstituted cyclopentadienyl and fluorenyl, respectively), for example, metallocene of formula II which is obtained using lithiumfluorene and 6-methyl-6-phenylfulvene as starting substances.

    High-molecular-weight polypropylene having a broad molecular-weight distribution.
    7.
    发明专利
    High-molecular-weight polypropylene having a broad molecular-weight distribution. 未知

    公开(公告)号：ZA971515B

    公开(公告)日：1998-01-26

    申请号：ZA971515

    申请日：1997-02-21

    Applicant: HOECHST AG

    Inventor： DOLLE VOLKER ,  CARRION EDUARDO CHICOTE ,  TERWYEN HERBERT

    IPC: C08F2/18 ,  C07D495/14 ,  C08F2/00 ,  C08F210/02 ,  C08F210/06 ,  C08F210/16 ,  C08F297/08 ,  C08F

    Abstract: A high molecular weight ethylene/propylene copolymer (I) has an ethylene content of 1-10 wt.%, a melt flow index (MFI 230/5) of less than 5 dg/min. and a molecular weight distribution (Mw/Mn) of 6-20. Also claimed is a 2-stage process for the production of (I) by copolymerisation of ethylene and propylene, optionally with another 4-20C 1-olefin, in suspension at 30-150 degrees C and 10-100 bar for 0.5-6 hr. in presence of a catalyst (A), an organoaluminium compound (B) and an organosilicon compound (C), in which stage 1 is carried out using the monomer itself as suspension medium to give polypropylene with a viscosity of 500-1400 ml/g and comprising 20-80% of the total polymer (I), and the product after stage 2 (i.e. polymer I) has a viscosity of 400-700 ml/g and Mw/Mn = 6-20.

    10.
    发明专利
    未知

    公开(公告)号：NO970799L

    公开(公告)日：1997-08-25

    申请号：NO970799

    申请日：1997-02-21

    Applicant: HOECHST AG

    Inventor： DOLLE VOLKER ,  CARRION EDUARDO CHICOTE ,  TERWYEN HERBERT

    IPC: C08F2/18 ,  C07D495/14 ,  C08F2/00 ,  C08F210/02 ,  C08F210/06 ,  C08F210/16 ,  C08F297/08 ,  C08F4/58

    Abstract: A high molecular weight ethylene/propylene copolymer (I) has an ethylene content of 1-10 wt.%, a melt flow index (MFI 230/5) of less than 5 dg/min. and a molecular weight distribution (Mw/Mn) of 6-20. Also claimed is a 2-stage process for the production of (I) by copolymerisation of ethylene and propylene, optionally with another 4-20C 1-olefin, in suspension at 30-150 degrees C and 10-100 bar for 0.5-6 hr. in presence of a catalyst (A), an organoaluminium compound (B) and an organosilicon compound (C), in which stage 1 is carried out using the monomer itself as suspension medium to give polypropylene with a viscosity of 500-1400 ml/g and comprising 20-80% of the total polymer (I), and the product after stage 2 (i.e. polymer I) has a viscosity of 400-700 ml/g and Mw/Mn = 6-20.

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