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Ishimaru Naoshi, Tsutsui Toshiyuki, Toyota Akinori, Kashiwa Norio: Cyclo-olefinic random copolymer, olefinic random copolymer, and process for producing cyclo-olefinic random copolymers.. Mitsui Petrochemical, September 21, 1988: EP0283164-A2 (97 worldwide citation)

A cyclo-olefinic random copolymer composed of an alpha-olefin component having 3 to 20 carbon atoms and a cyclo-olefin component, (i) said copolymer containing 5 to 99 mole% of recurring units derived from said alpha-olefin component having 3 to 20 carbon atoms and 1 to 95 mole% of recurring units d ...


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Tsutsui Toshiyuki, Toyota Akinori, Kashiwa Norio: Process for polymerizing olefins.. Mitsui Petrochemical, April 27, 1994: EP0594218-A1 (76 worldwide citation)

Process for polymerizing olefins using a catalyst composed of a transition metal catalyst component, a specified concentration of an aluminoxane component and an organoaluminium component. In the process of this invention, the catalyst exhibits excellent polymerization activity with the use of a sma ...


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Kioka Mamoru, Toyota Akinori, Kashiwa Norio, Tsutsui Toshiyuki: Catalyst for polymerizing alpha-olefin and polymerization process.. Mitsui Petrochemical, August 31, 1988: EP0279863-A1 (73 worldwide citation)

This new catalyst for polymerisation of alpha-olefins is obtd. by using a solid catalyst (1) having two components in the prepolymerisation process of alpha-olefins. The solid catalyst (1) comprises (A) a solid catalyst component in which a transition metal cpd. is provided on a carrier and (B) an a ...


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Tsutsui Toshiyuki Mitsui Petro, Yoshitsugu Ken Mitsui Petroche, Toyota Akinori Mitsui Petroche: Olefin copolymer and production thereof.. Mitsui Petrochemical, July 22, 1992: EP0495099-A1 (57 worldwide citation)

This invention provides an ethylene copolymer having a narrow molecular weight distribution and an excellent flow and being composed of structural units (a) derived from ethylene and structural units (b) derived from a C3 to C20 alpha -olefin, said copolymer having (A) a density of 0.85 to 0.92 g/cm ...


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Ishimaru Naoshi C O Mitsui Pet, Kioka Mamoru C O Mitsui Petroc, Toyota Akinori C O Mitsui Petr: Process for polymerizing olefins and catalyst for polymerizing olefins.. Mitsui Petrochemical, September 5, 1990: EP0385765-A2 (52 worldwide citation)

A catalyst for polymerization of an olefin, said catalyst being formed from [A] a solid titanium catalyst component comprising magnesium, titanium, halogen and an electron donor as essential ingredients, [B] an organoaluminum compound catalyst component, and [C] an electron donor catalyst component ...


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Ishimaru Naoshi, Kioka Mamoru, Toyota Akinori: Process for polymerising olefins and polymerisation catalyst therefor.. Mitsui Petrochemical, January 10, 1990: EP0350170-A2 (46 worldwide citation)

An olefin polymerization catalyst formed from (A) a solid titanium catalyst component containing magnesium, titanium and halogen as essential ingredients, (B) an organoaluminum compound, and (C) an organosilicon compound containing a cyclopentyl group, a cyclopentenyl group, a cyclopentadienyl group ...


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Kioka Mamoru, Kashiwa Norio, Sugi Masahiro, Toyota Akinori: Low-crystalline propylene random copolymer composition, process for production thereof, and composite laminated polypropylene structure.. Mitsui Petrochemical, April 13, 1988: EP0263718-A2 (38 worldwide citation)

A novel low-crystalline propylene random copolymer composition comprising [I] 60 to 95 % by weight of a propylene random copolymer and [II] 5 to 40 % by weight of a low-crystalline propylene random copolymer which has excellent heat-sealability, heat-seal imparting property, transparency and antiblo ...


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Kioka Mamoru, Kashiwa Norio, Tsutsui Toshiyuki, Toyota Akinori: Olefin polymerization catalyst and process for polymerizing olefin.. Mitsui Petrochemical, May 10, 1989: EP0314797-A1 (30 worldwide citation)

Catalyst comprises (A) a compound of a transition metal of gp. IVB (B) aluminoxane, and (C) an organoaluminum compound of formula . R1mAl(OR2)3-m (I) or R3nAl(OSiR43)3-n (II)a. where R1, R2 and R3 represent a hydrocarbyl group; R4 represents a hydrocarbyl, an alkoxy, or an aryoxy group; m and n are ...


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Tsutsui Tohiyuki, Toyota Akinori, Kashiwa Norio: Liquid modified ethylenic random copolymer and its uses.. Mitsui Petrochemical, December 14, 1988: EP0295026-A2 (23 worldwide citation)

A liquid modified ethylenic random copolymer selected from an epoxidization product of a liquid ethylenic random copolymer of ethylene and an alpha-olefin having 3 to 20 carbon atoms and a hydroxylation product of a liquid ethylenic random copolymer of ethylene and an alpha-olefin having 3 to 20 car ...