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Dominique Commereuc, Serge Boivineau, Fran cedilla ois Hugues, Lucien Saussine: Catalytic composition and a process for converting ethylene to light alpha olefins. Institut Francais du Petrole, Millen White Zelano & Branigan P C, August 15, 2000: US06103654 (34 worldwide citation)

A catalytic composition for the production of light alpha olefins by ethylene oligomerisation is produced by mixing a zirconium compound with an organic compound selected from the group formed by acetals and ketals, with an aluminium hydrocarbyl compound selected from the group formed by chlorine-co ...


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Dominique Commereuc, Yves Glaize, Fran cedilla ois Hugues, Pierre Panzarella, Lucien Saussine: Process for the conversion of ethylene into light alpha olefins with the use of additives based on quaternary ammonium salts. Institut Francais du Petrole, Millen White Zelano & Branigan P C, October 6, 1998: US05817905 (25 worldwide citation)

The invention concerns an improved process for the conversion of ethylene into light alpha olefins wherein the ethylene is brought into contact with a catalyst obtained by mixing a compound of zirconium with an organic compound selected from the class of acetals and ketals, esters, ketones, ethers, ...


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Dominique Commereuc, Yves Chauvin, Fran cedilla ois Hugues, Yves Glaize: Conversion of ethylene into butene-1 using additives based on quarternary ammonium salts. Institut Francais du Petrole, Saudi Basic Industries Corporation, Millen White Zelano & Branigan P C, March 2, 1999: US05877376 (4 worldwide citation)

The invention concerns an improved process for the conversion of ethylene into butene-1, wherein the ethylene is brought into contact with a catalyst obtained by the reaction of an alkyl titanate, possibly mixed with an ether, with a compound of aluminium of the formula AlR.sub.3 or AlR.sub.2 H, and ...


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Jacques Rioland, Michel Delon, Fran cedilla ois Hugues Gauthier, Patrice Jano: Device to measure the alignment of a laser amplification system. Thomas CSF, Oblon Spivak McClelland Maier & Neustadt P C, July 20, 1999: US05926281 (2 worldwide citation)

A device for the alignment of a laser beam amplification system comprises at least measuring means and alignment templates positioned instead of filtering hole plates of the amplification system, the alignment templates having holes whose centers have substantially the same spatial positions as the ...