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    CATALYST COMPOSITION FOR USE IN THE POLYMERIZATION OR COPOLYMERIZATION OF OLEFINS
    41.
    发明专利
    CATALYST COMPOSITION FOR USE IN THE POLYMERIZATION OR COPOLYMERIZATION OF OLEFINS 未知

    公开(公告)号：DE3364388D1

    公开(公告)日：1986-08-07

    申请号：DE3364388

    申请日：1983-10-25

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： KOHYAMA MASAKI ,  MOTOOKA MASANORI ,  UEDA TAKASHI ,  KASHIWA NORIO

    IPC: C08F210/00 ,  C08F4/64 ,  C08F10/00 ,  C08F210/16

    Abstract: A catalyst composition for the polymerization or copolymerization of olefins composed of(A) a titanium component (a-1) or (a-2),(a-1) a highly active titanium component containing titanium, magnesium and halogen as essential ingredients, or(a-2) a highly active titanium catalyst component obtained by treating component (a-1) with an organic compound containing active hydrogen bonded to oxygen, and(B) an organoaluminum compound component, characterised in that(i) when component (A) is the component (a-1), component (B) is an organoaluminum compound component obtained by treating a halogen-containing organoaluminum compound having a halogen/Al atomic ratio of at least 1/1 but less than 2/1 with a compound selected from water and organic compounds having active hydrogen bonded to oxygen, and(ii) when component (A) is the component (a-2), the component (B) is a halogen-containing organoaluminum compound having a halogen/Al atomic ratio of at least 1/1 but less than 2/1, and the ratio of the amount (x) of the organic compound having active hydrogen atom bonded to oxygen and/or oxygen-containing group derived from said organic compound to the amount (y) of titanium x:y, is 4-100:1.

    PROCESS FOR POLYMERIZING OLEFINS
    42.
    发明专利
    PROCESS FOR POLYMERIZING OLEFINS 未知

    公开(公告)号：DE2965776D1

    公开(公告)日：1983-07-28

    申请号：DE2965776

    申请日：1979-12-10

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： UEDA TAKASHI ,  MINAMI SYUJI ,  KIOKA MAMORU ,  KASHIWA NORIO

    IPC: C08F4/00 ,  C08F4/02 ,  C08F4/60 ,  C08F4/64 ,  C08F4/68 ,  C08F10/00

    Abstract: A process for producing a polymer or copolymer of an alpha-olefin comprises continuously polymerizing or copolymerizing the alpha-olefin or the alpha-olefin with up to 5 mole% of a diolefin in the presence of a catalyst composed of (A) a solid magnesium compound obtained by reacting (i) an adduct formed between a magnesium halide and an electron donor, with (ii) an organometallic compound of a metal of Groups I to III of Mendelejeff's periodic table, (B) a liquid transition metal compound, and (C) an organoaluminum compound, while feeding the compound (B) separately from the other compounds (A) and (C) into a polymerization or copolymerization zone. By means of this process it is possible to produce a polymer or copolymer of narrow molecular weight distribution, while yet avoiding the requirement of known processes of supporting a transition metal compound on a magnesium-containing carrier before carrying out a polymerization or copolymerization reaction.

    PROCESS FOR PREPARATION OF ETHYLENE POLYMER WAX
    43.
    发明专利
    PROCESS FOR PREPARATION OF ETHYLENE POLYMER WAX 未知

    公开(公告)号：CA1135000A

    公开(公告)日：1982-11-02

    申请号：CA353525

    申请日：1980-06-06

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： UEDA TAKASHI ,  KASHIWA NORIO

    IPC: C08F4/00 ,  C08F2/40 ,  C08F4/60 ,  C08F4/64 ,  C08F8/00 ,  C08F10/00 ,  C08F10/02 ,  C08F2/06

    Abstract: Improved process for preparing an ethylene polymer wax which comprises polymerizing ethylene or copolymerizing ethylene with up to 10 mole% of an alpha-olefin having 3 to 20 carbon atoms in the presence of (A) a highly active titanium catalyst component activated by a magnesium compound and (B) an organoaluminum catalyst component composed of (B-l) an organoaluminum compound free from halogen bonded directly to the aluminum atom and (B-2) a halogen compound of an element selected from the group consisting of elements other than titanium of Groups III and IV of the Mendelejeff's periodic table, the atomic ratio of halogen to aluminum in the organoaluminum catalyst component (B) being from about 1:6 to about 9:10, provided that when said halogen compound is a halogen compound of carbon, this atomic ratio is from about 1:6 to about 10:1, and said polymerization or copolymerization being carried out under such conditions that the concentration of ethylene polymer wax in the polymerization or copolymerization system is about 200 to about 600 g/liter of solvent, to form a wax having a viscosity average molecular weight of up to about 6000.

    44.
    发明专利
    未知

    公开(公告)号：DE69123862T2

    公开(公告)日：1997-05-28

    申请号：DE69123862

    申请日：1991-02-13

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： TSUTSUI TOSHIYUKI ,  UEDA TAKASHI

    IPC: C08F10/02 ,  C08F210/16 ,  C08F297/08 ,  C08L23/04

    Abstract: A method for the preparation of an ethylene polymer composition having a density of 0.87-0.93 g/cm and an intrinsic viscosity Ä eta Ü of 0.5-6 dl/g, which comprises carrying out a multi-stage process comprising a polymerization step (c): wherein ethylene and another alpha -olefin are copolymerized using an olefin polymerization catalyst ÄIIÜ, which comprises a transition metal compound ÄAÜ containing a ligand having a cycloalkadienyl skeleton and an organoaluminum oxy-compound ÄBÜ, to form an ethylene copolymer ÄIIIÜ having a density of lower than 0.91 g/cm and an intrinsic viscosity Ä eta Ü of 0.5-6 dl/g, and a polymerization step (d): wherein ethylene is homopolymerized or ethylene and another alpha -olefin are copolymerized using an olefin polymerization catalyst ÄIIIÜ, which comprises a titanium catalyst component ÄCÜ containing titanium, magnesium and halogen as its essential ingredients, an organoaluminum compound ÄDÜ and/or an organoaluminum oxy-compound ÄEÜ to form an ethylene copolymer ÄIVÜ having a density greater than that of the ethylene copolymer ÄIIIÜ and an intrinsic viscosity Ä eta Ü of 0.5-6 dl/g, wherein the polymerization steps (c) and (d) are carried out such that step (c) is carried out first and step (d) is carried out in the presence of the ethylene copolymer ÄIIIÜ or step (d) is carried out first and step (c) is carried out in the presence of the ethylene polymer ÄIVÜ so that the ethylene polymer ÄIVÜ amounts to 10-1000 parts by weight based on 100 parts by weight of the ethylene copolymer ÄIIIÜ.

    45.
    发明专利
    未知

    公开(公告)号：AT147086T

    公开(公告)日：1997-01-15

    申请号：AT91301167

    申请日：1991-02-13

    Applicant: MITSUI PETROCHEMICAL IND

    Inventor： TSUTSUI TOSHIYUKI ,  UEDA TAKASHI

    IPC: C08F10/02 ,  C08F210/16 ,  C08F297/08 ,  C08L23/04

    Abstract: A method for the preparation of an ethylene polymer composition having a density of 0.87-0.93 g/cm and an intrinsic viscosity Ä eta Ü of 0.5-6 dl/g, which comprises carrying out a multi-stage process comprising a polymerization step (c): wherein ethylene and another alpha -olefin are copolymerized using an olefin polymerization catalyst ÄIIÜ, which comprises a transition metal compound ÄAÜ containing a ligand having a cycloalkadienyl skeleton and an organoaluminum oxy-compound ÄBÜ, to form an ethylene copolymer ÄIIIÜ having a density of lower than 0.91 g/cm and an intrinsic viscosity Ä eta Ü of 0.5-6 dl/g, and a polymerization step (d): wherein ethylene is homopolymerized or ethylene and another alpha -olefin are copolymerized using an olefin polymerization catalyst ÄIIIÜ, which comprises a titanium catalyst component ÄCÜ containing titanium, magnesium and halogen as its essential ingredients, an organoaluminum compound ÄDÜ and/or an organoaluminum oxy-compound ÄEÜ to form an ethylene copolymer ÄIVÜ having a density greater than that of the ethylene copolymer ÄIIIÜ and an intrinsic viscosity Ä eta Ü of 0.5-6 dl/g, wherein the polymerization steps (c) and (d) are carried out such that step (c) is carried out first and step (d) is carried out in the presence of the ethylene copolymer ÄIIIÜ or step (d) is carried out first and step (c) is carried out in the presence of the ethylene polymer ÄIVÜ so that the ethylene polymer ÄIVÜ amounts to 10-1000 parts by weight based on 100 parts by weight of the ethylene copolymer ÄIIIÜ.

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