公开(公告)号：ATA776579A

公开(公告)日：1981-07-15

申请号：AT776579

申请日：1979-12-07

Applicant: MITSUI PETROCHEMICAL IND

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

IPC: C08F4/00 ,  C08F4/02 ,  C08F4/60 ,  C08F4/62 ,  C08F4/639 ,  C08F4/64 ,  C08F10/00

Abstract: In a continuous process for producing a polymer or copolymer of an alpha-olefin in a hydrocarbon solvent in the presence of a catalyst comprising a transition metal compound and an organoaluminum compound, the improvement wherein [I] polymerization or copolymerization is carried out in the presence of a catalyst composed of (A) a magnesium compound in the liquid state which is soluble in said hydrocarbon solvent and is free from an organoaluminum compound and a transition metal compound, said magnesium compound being obtained from specific reactants, (B) a transition metal compound in the liquid state, and (C) an organoaluminum compound, and [II] said polymerization or copolymerization is carried out while feeding said compound (C) into a polymerization or copolymerization zone separately from said other compounds (A) and (B), or while adding a part or the whole of said compound (C) to a liquid mixture of said other compounds (A) and (B) and feeding the resulting mixture into said zone, or while feeding a mixture of the compounds (A), (B) and (C) into said zone.

公开(公告)号：AU5356979A

公开(公告)日：1980-07-10

申请号：AU5356979

申请日：1979-12-07

Applicant: MITSUI PETROCHEMICAL IND

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

IPC: C08F4/00 ,  C08F4/02 ,  C08F4/60 ,  C08F4/62 ,  C08F4/639 ,  C08F4/64 ,  C08F10/00 ,  C08F10/02 ,  C08F10/06

Abstract: In a continuous process for producing a polymer or copolymer of an alpha-olefin in a hydrocarbon solvent in the presence of a catalyst comprising a transition metal compound and an organoaluminum compound, the improvement wherein [I] polymerization or copolymerization is carried out in the presence of a catalyst composed of (A) a magnesium compound in the liquid state which is soluble in said hydrocarbon solvent and is free from an organoaluminum compound and a transition metal compound, said magnesium compound being obtained from specific reactants, (B) a transition metal compound in the liquid state, and (C) an organoaluminum compound, and [II] said polymerization or copolymerization is carried out while feeding said compound (C) into a polymerization or copolymerization zone separately from said other compounds (A) and (B), or while adding a part or the whole of said compound (C) to a liquid mixture of said other compounds (A) and (B) and feeding the resulting mixture into said zone, or while feeding a mixture of the compounds (A), (B) and (C) into said zone.

公开(公告)号：DK0630916T3

公开(公告)日：1998-05-04

申请号：DK94112639

申请日：1991-02-26

Applicant: MITSUI PETROCHEMICAL IND

Inventor： KIOKA MAMURO ,  YASHIKI TSUNEO ,  UEDA TAKASHI ,  KOHYAMA MASAKI ,  YAMADA MASAYA ,  IKEYAMA SEIICHI ,  AKANA YOSHINORI ,  IWATA KENJI

IPC: C08F210/16 ,  C08J5/18 ,  C08F210/02 ,  C08K5/00 ,  C08K5/524 ,  C08L23/08

Abstract: The present invention relates to an ethylene/pentene-1 copolymer composition comprising an ethylene/pentene-1 copolymer (I) and at least one compound (II) selected from the group consisting of a phenolic stabilizer, an organic phosphite stabilizer, a thioether stabilizer, a hindered amine stabilizer and a metal salt of a higher aliphatic acid, which is excellent in heat stability in the molding stage, long-term heat stability and weatherability.

公开(公告)号：AT161554T

公开(公告)日：1998-01-15

申请号：AT94112639

申请日：1991-02-26

Applicant: MITSUI PETROCHEMICAL IND

Inventor： KIOKA MAMURO ,  YASHIKI TSUNEO ,  UEDA TAKASHI ,  KOHYAMA MASAKI ,  YAMADA MASAYA ,  IKEYAMA SEIICHI ,  AKANA YOSHINORI ,  IWATA KENJI ,  MATSUMOTO SATOSHI ,  SAKAI HIDEKI

IPC: C08F210/02 ,  C08F210/16 ,  C08J5/18 ,  C08K5/00 ,  C08K5/524 ,  C08L23/08

Abstract: The present invention relates to an ethylene/pentene-1 copolymer composition comprising an ethylene/pentene-1 copolymer (I) and at least one compound (II) selected from the group consisting of a phenolic stabilizer, an organic phosphite stabilizer, a thioether stabilizer, a hindered amine stabilizer and a metal salt of a higher aliphatic acid, which is excellent in heat stability in the molding stage, long-term heat stability and weatherability.

公开(公告)号：DK0447035T3

公开(公告)日：1997-06-16

申请号：DK91301167

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.

公开(公告)号：DK0435332T3

公开(公告)日：1997-05-12

申请号：DK90125706

申请日：1990-12-28

Applicant: MITSUI PETROCHEMICAL IND

Inventor： KIOKA MAMORU ,  NAKANO MASAO ,  UEDA TAKASHI

IPC: C08F4/652 ,  C08F4/60 ,  C08F4/651 ,  C08F4/654 ,  C08F4/656 ,  C08F10/00 ,  C08F10/02 ,  C08F10/06 ,  C08F210/00

Abstract: The present invention relates to solid catalyst components for olefin polymerization formed by prepolymerizing at least two types of alpha -olefin on an olefin polymerization catalyst comprising a solid titanium catalyst component, an organometallic compound catalyst component, and if necessary, an electron donor, to olefin polymerization catalyst comprising said soild catalyst component for olefin polymerization, an organometallic compound catalyst component, and if necessary, an electron donor, and to processes for olefin polymerization using said olefin polymerization catalyst. According to the present invention, there can be manufactured olefin polymer particles having low adhesive among the polymer particles as well as good particle distribution and excellent granular properties even when they contain a large amount of an amorphous olefin polymer portion.

公开(公告)号：DE69028979T2

公开(公告)日：1997-03-20

申请号：DE69028979

申请日：1990-12-28

Applicant: MITSUI PETROCHEMICAL IND

Inventor： TSUTSUI TOSHIYUKI ,  UEDA TAKASHI

IPC: C08F4/602 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/654 ,  C08F10/00

Abstract: In accordance with the present invention, there are provided olefin polymerization solid catalysts comprising [A] a solid titanium catalyst component containing titanium, magnesium and halogen as its essential ingredients, said catalyst component having supported thereon [B] a transition metal compound containing a ligand having a cycloalkadienyl skeleton and, if necessary, [C] an organoaluminum oxy-compound. In accordance with the invention, there are also provided olefin polymerization solid catalysts comprising [i] a solid containing a transition metal compound containing a ligand having a cycloalkadienyl skeleton, said solid having supported thereon [ii] a titanium catalyst component containing titanium, magnesium and halogen as its essential ingredients and, if necessary, [iii]an organoaluminum oxy-compound. I

公开(公告)号：DE69119132T2

公开(公告)日：1996-10-02

申请号：DE69119132

申请日：1991-02-26

Applicant: MITSUI PETROCHEMICAL IND

Inventor： KIOKA MAMORU ,  YASHIKI TSUNEO ,  UEDA TAKASHI ,  KOHYAMA MASAKI ,  YAMADA MASAYA ,  IKEYAMA SEIICHI ,  AKANA YOSHINORI ,  IWATA KENJI ,  MATSUMOTO SATOSHI ,  SAKAI HIDEKI

IPC: C08F210/16 ,  C08J5/18 ,  C08F210/02 ,  C08K5/00 ,  C08K5/524 ,  C08L23/08 ,  C08F4/654

Abstract: The present invention relates to an ethylene/pentene-1 copolymer composition comprising an ethylene/pentene-1 copolymer (I) and at least one compound (II) selected from the group consisting of a phenolic stabilizer, an organic phosphite stabilizer, a thioether stabilizer, a hindered amine stabilizer and a metal salt of a higher aliphatic acid, which is excellent in heat stability in the molding stage, long-term heat stability and weatherability.

公开(公告)号：CA2071706C

公开(公告)日：1996-09-17

申请号：CA2071706

申请日：1992-06-19

Applicant: MITSUI PETROCHEMICAL IND

Inventor： IMUTA JUNICHI ,  SAITO JUNJI ,  UEDA TAKASHI ,  MUKAIYAMA TERUAKI

IPC: C08F2/06 ,  C08F4/642 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C07F17/00 ,  C07F7/00 ,  C08F2/00 ,  C08F12/00

Abstract: The catalyst for olefin polymerization of the present invention contains R1kR2lR3mM(SO3R4) (M = Zr, Ti or Hf; R1-3 = a group having a cyclopentadienyl skeleton) as a catalyst component of a transition metal compound. According to the catalyst of the invention, an olefin polymer having excellent particle properties can be prepared with high polymerization activities, and further a copolymer having a narrow composition distribution can be prepared when two or more monomers are copolymerized. Of the above-mentioned transition metal compounds, a compound represented by the following formula is a novel compound unknown so far and shows excellent catalytic properties. (Cp = a group having a cyclopentadienyl skeleton, X = SO3R, a halogen atom, R, OR, NRn, S(O)qR, SiR3 or P(O)qR3, n = 1, 2 or 3; q = 0, 1 or 2)

公开(公告)号：GR3019812T3

公开(公告)日：1996-08-31

申请号：GR960400248

申请日：1996-05-02

Applicant: MITSUI PETROCHEMICAL IND

Inventor： KIOKA MAMORU ,  YASHIKI TSUNEO ,  UEDA TAKASHI ,  KOHYAMA MASAKI ,  YAMADA MASAYA ,  IKEYAMA SEIICHI ,  AKANA YOSHINORI ,  IWATA KENJI ,  MATSUMOTO SATOSHI ,  SAKAI HIDEKI

IPC: C08F210/16 ,  C08J5/18 ,  C08F210/02 ,  C08K5/00 ,  C08K5/524 ,  C08L23/08 ,  C08F4/654

Abstract: The present invention relates to an ethylene/pentene-1 copolymer composition comprising an ethylene/pentene-1 copolymer (I) and at least one compound (II) selected from the group consisting of a phenolic stabilizer, an organic phosphite stabilizer, a thioether stabilizer, a hindered amine stabilizer and a metal salt of a higher aliphatic acid, which is excellent in heat stability in the molding stage, long-term heat stability and weatherability.