1
Junichi Imuta, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki, Mikio Hashimoto: Propylene polymer, propylene copolymer, and propylene elastomer prepared using novel bridged indenyl containing metallocenes. Mitsui Petrochemical, Sherman and Shalloway, April 2, 1996: US05504172 (231 worldwide citation)

The novel transition metal compound of the invention is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 and R.sup.2 are each a hydrogen atom, a hydrocarbon group or the like; R.sup.3 is an alkyl group of 2 to 20 carbon atoms; R.sup.4 is an alkyl group of 2 ...


2
Junichi Imuta, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki: Processes for producing propylene polymer utilizing bis (1-(4-isopropyl-7-methyl-indenyl) zirconium halide-base catalyst components. Mitsui Chemicals, Sherman and Shalloway, September 28, 1999: US05959046 (41 worldwide citation)

A process for producing a propylene polymer having an intrinsic viscosity (.eta.), as measured in decahydronaphthalene at 135.degree. C., of 1 to 12 dl/g comprises polymerizing propylene optionally with other olefins in the presence of an olefin polymerization catalyst comprising a transition metal ...


3
Daisuke Fukuoka, Takashi Tashiro, Koji Kawaai, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Junichi Imuta, Terunori Fujita, Masatoshi Nitabaru, Masayasu Yoshida: Substituted indenyl ring containing metallocene catalyst for propylene polymerization process. Mitsui Petrochemical, Sherman and Shalloway, May 13, 1997: US05629254 (36 worldwide citation)

The novel transition metal catalyst of the invention is represented by the following formula (I): ##STR1## wherein M is a zirconium or hafnium; R.sup.1 is a hydrocarbon group of 2 to 6 carbon atoms, R.sup.2 is an aryl group of 6 to 16 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom; and Y ...


4
Takeshi Ohmatsuzawa, Fujito Ehara, Hideshi Hori, Kazuo Toyota, Kenzaburou Fukutani, Junichi Imuta, Akiyoshi Shimizu, Takayuki Onogi, Seiji Noda, Masayuki Sakai, Shoji Hiraoka, Koji Nakamachi, Michio Tsugawa, Satoru Miyazoe: Catalyst for polyester production, process for producing polyester using the catalyst, polyester obtained by the process, and uses of the polyester. Mitsui Chemicals, February 12, 2002: US06346070 (36 worldwide citation)

The present invention provides a catalyst for polyester production capable of producing a polyester with high catalytic activity and a process for producing a polyester using the catalyst. The catalyst for polyester production comprises a solid titanium compound which is obtained by dehydro-drying a ...


5
Daisuke Fukuoka, Takashi Tashiro, Koji Kawaai, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Junichi Imuta, Terunori Fujita, Masatoshi Nitabaru, Masayasu Yoshida: Process for polymerizing propylene by using a novel metallocene catalyst. Mitsui Petrochemical, January 20, 1998: US05710223 (30 worldwide citation)

A process for polymerizing propylene utilizes a metallocene catalyst component of the formula (I) ##STR1## wherein M is a transition metal, R.sup.1 is a C.sub.2-6 hydrocarbon, R.sup.2 is a C.sub.6-16 aryl group, X.sup.1 and X.sup.2 are each a halogen atom and Y is a divalent hydrocarbon or a divalen ...


6
Junichi Imuta, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki: Transition metal compound containing substituted indenyl rings. Mitsui Petrochemical, Sherman and Shalloway, April 14, 1998: US05739366 (29 worldwide citation)

The novel transition metal compound of the invention is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 and R.sup.2 are each a hydrogen atom, a hydrocarbon group or the like; R.sup.3 is an alkyl group of 2 to 20 carbon atoms; R.sup.4 is an alkyl group of 2 ...


7
Takashi Ueda, Mikio Hashimoto, Masaaki Kawasaki, Daisuke Fukuoka, Junichi Imuta: Process for preparing propylene polymer composition and propylene polymer composition. Mitsui Petrochemical, Sherman and Shalloway, May 19, 1998: US05753769 (28 worldwide citation)

A process for preparing a propylene polymer composition having excellent rigidity, heat resistance and impact resistance comprising conducting multistage polymerization including a step (a) for preparing a propylene (co)polymer (A), a step (b) for preparing a propylene-olefin copolymer (B) and a ste ...


8
Junichi Imuta, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Akira Mizuno, Masaaki Kawasaki: Transition metal compound and olefin polymerization catalyst component comprising said compound. Mitsui Petrochemical, Sherman and Shalloway, June 16, 1998: US05767033 (27 worldwide citation)

The novel transition metal compound of the invention is represented by the following formula: ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom or a hydrocarbon group of 1 to 3 carbon atoms;


9
Daisuke Fukuoka, Takashi Tashiro, Koji Kawaai, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Junichi Imuta, Terunori Fujita, Masatoshi Nitabaru, Masayasu Yoshida: Process for polymerizing propylene by using a novel metallocene catalyst. Mitsui Petrochemical, Sherman And Shalloway, August 19, 1997: US05658997 (26 worldwide citation)

The novel transition metal compound of the invention is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 is a hydrocarbon group of 2 to 6 carbon atoms, R.sup.2 is an aryl group of 6 to 16 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom or the like ...


10
Daisuke Fukuoka, Takashi Tashiro, Koji Kawaai, Junji Saito, Takashi Ueda, Yoshihisa Kiso, Junichi Imuta, Terunori Fujita, Masatoshi Nitabaru, Masayasu Yoshida: Transition metal compound having indenyl-containing metallocene. Mitsui Petrochemical, Sherman and Shalloway, March 3, 1998: US05723640 (26 worldwide citation)

The novel transition metal compound of the invention is represented by the following formula (I): ##STR1## wherein M is a transition metal; R.sup.1 is a hydrocarbon group of 2 to 6 carbon atoms, R.sup.2 is an aryl group of 6 to 16 carbon atoms; X.sup.1 and X.sup.2 are each a halogen atom or the like ...