61
Miyoshi Mituji, Sugita Shoji, Matsuura Kazuo, Tajima Yoshio: Process for preparing polyolefins. Nippon Oil, March 9, 1983: GB2104531-A (4 worldwide citation)

Olefins are polymerized with a high stereospecificity by using a catalyst which comprises a combination of a solid catalyst component with a mixture or addition compound of an organometallic compound and an organic acid ester. The above solid catalyst component is obtained by supporting on a solid s ...


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Process for preparing polyolefins and catalyst and catalyst component therefor. Nippon Oil, October 19, 1977: GB1489599-A (4 worldwide citation)

1489599 Olefin polymerisation catalyst components NIPPON OIL CO Ltd 4 Oct 1974 [9 Oct 1973 22 March 1974] 43195/74 Heading B1E [Also in Division C3] A component of an olefin polymerisation catalyst is prepared by copulverising (a) a magnesium dihalide, (b) a compound of the formula Al(OR) 3 where R ...


63
Okumura Yoshikuni, Nifant Ev Ilya, Elder Michael, Ivchenko Pavel, Bagrov Vladimir: Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and preparation of polyolefins. Basell Polyolefine, August 23, 2006: EP1692144-A2 (4 worldwide citation)

The present invention relates to organometallic transition metal compounds of the formula (I) where Mis an element of group 3, 4, 5 or 6 of the Periodic Table of the Elements or the lanthanides, the radicals X are identical or different and are each an organic or inorganic radical, with two radicals ...


64
Shahram Mihan, Ilya Nifant ev: Monocyclopentadienyl complex. Basell Polyolefin, Jarrod N Raphael, Jonathan L Schuchardt, June 2, 2009: US07541481 (3 worldwide citation)

Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one unsubstituted, substituted or fused, heteroaromatic ring system bound via a specific bridge, a catalyst system, comprising at least one of these monocyclopentadienyl complexes, the use of the catalyst system for t ...


65
Shahram Mihan: Monocyclopentadienyl complexes. Basell Polyolefine, Jarrod N Raphael, April 10, 2007: US07202373 (3 worldwide citation)

Monocyclopentadienyl complexes in which the cyclopentadienyl system bears at least one uncharged donor bound via a boron-containing bridge and comprising one or more atoms of group 15 and/or 16 of the Periodic Table of the Elements and is bound to a metal selected from the group consisting of titani ...


66
Robert L Jones, Michael J Elder, Jennifer Kipke, Alexander Koeppl, Markus Schopf, John Ewen: Transition metal compound, ligand system, catalyst system and process for preparing polyolefins. Basell Polyolefine, William R Reid, Jonathan L Schuchardt, May 25, 2010: US07723450 (3 worldwide citation)

The present invention relates to organometallic transition metal compounds of the formula (I) Z1AnZ2MXm  (I) where Z1 is a coordinating group which comprises a six-π-electron central group which coordinates directly to M, A is a divalent bridge between the groups Z1 and Z2, Z2 is a coordinating grou ...


67
Shahram Mihan, Benno Bildstein, Alexander Solchinger, Lars Kölling: Transition metal compound, ligand system, catalyst system and process for preparing polyolefins. Basell Polyolefine, Shao Hua Guo, January 11, 2011: US07868108 (3 worldwide citation)

The present invention relates to transition metal compounds of the formula (I), a process for preparing polyolefins by polymerization or copolymerization of at least one olefin in the presence of at least one olefin in the presence of at least one of the catalyst systems according to the invention a ...


68
Mitsuji Miyoshi, Yoshio Tajima, Kazuo Matsuura, Nobuyuki Kuroda, Mitsuo Matsuno: Process for preparing polyolefins. Nippon Oil Company, Wyatt Gerber Shoup Scobey & Badie, September 8, 1981: US04288579 (3 worldwide citation)

According to this invention there is provided a process for polymerizing or copolymerizing olefins using a catalyst consisting of:


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Akira Sano, Takeichi Shiraishi, Kunihiro Suzuki, Mitsuo Okamoto, Katumi Usui, Hiroyuki Shimizu, Kazuo Matsuura: Process for preparing polyolefins. Nippon Oil Company, Dilworth & Barrese, October 31, 1995: US05463001 (3 worldwide citation)

Polyolefins exhibiting better particle properties are prepared by polymerizing an olefin or olefins in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, said solid catalyst component being prepared by the reaction of the following components [I] and [II ...


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Akira Sano, Hiroyuki Shimizu, Kazuo Matsuura: Process for preparing polyolefins. Nippon Oil Company, Dilworth & Barrese, March 7, 2000: US06034188 (3 worldwide citation)

An olefin polymerization is conducted in the presence of a catalyst comprising a solid catalyst component and an organometallic compound, said solid catalyst component being prepared by reacting the following components [I], [II] and [III] with one another: