Formosa Plastics Corporation, U.s.a.

Other

Formosa Plastic Corporation, U.s.a.

Zhongyang Liu

Honglan Lu

Chih-Jian Chen

Gapgoung Kong

Guangxue Xu

Youliang Hu

Yingying Lu

Yucai Ke

Cunyue Guo

A process for synthesizing a catalyst component for manufacturing ethylene polymer and co-polymer. The present invention provides a process for synthesizing catalyst component (A), comprising forming a complex by contacting the solid intermediate (B) with an aluminum compound represented by formula XAl(OY), and alkyl metal (C), wherein X is halide, Y is a hydrocarbon group or chelating carbonyl group, and wherein 1 is less than or equal to n which is less than or equal to 3, and then contacting the complex with titanium halide having formula TiXwherein X is halide. Solid intermediate (B) is formed by reacting magnesium metal with alkyl halide in the presence of alkoxy aluminum represented by formula Al(OR), silicon halide represented by formula SiXand alkoxy silane represented by formula Si(OR), wherein Rand Rare an aromatic or aliphatic alkyl group and wherein X is halide. Alkyl metal (C) is synthesized by reacting alkyl aluminum compounds represented by formula AlRwith a secondary amine having formula HNRand then by reacting with alkyl magnesium compounds represented by formula RMgR, wherein R, R, Re and Rare an aromatic or aliphatic alkyl group. The catalyst component is suitable for producing ethylene polymer and co-polymer with narrow molecular weight distribution as well as improved branching compositional distribution.

Catalyst system for producing ethylene (co) polymer with improved branch distribution

Processes are disclosed relating to modifying clays with an olefinic functionalized surfactant containing a chain end polymerizable double bond, and to treating the thus modified organoclay with an olefin polymerization catalyst precursor, and polymerizing an olefin in the presence of the thus treated organoclay and an organoaluminum cocatalyst.

Process for making exfoliated polyolefin/clay nanocomposites

A highly active alpha-olefin polymerization catalyst component is disclosed. In the presence of a co-catalyst, the catalyst component is useful for the production of LLDPE resins. The catalyst component is produced by a method whereby organic silicon compounds are reacted with a transition metal complex and active transition metal species is deposited on a silicon-containing MgClthat is prepared in situ in the presence of the organic silicon compounds.

Highly active alpha-olefin polymerization catalyst

A magnesium halide support material for a polyolefin catalysts is disclosed. The magnesium halide of present invention is prepared by reacting magnesium with an alkylhalide in a non-polar hydrocarbon solvent. Preparation of the support does not require the use electron donating solvents and therefore does not require extensive washing to remove the solvent from the support.

Preparation of a magnesium halide support for olefin polymerization and a catalyst composition using the same

Disclosed is a new titanium based catalyst system for (co)-polymerizing ethylene or ethylene with alpha-olefin having 3 to 10 carbons. The catalyst is obtained by contacting a magnesium halide support with an aluminum compound and with a titanium halide compound and then treating the resulting solid with a magnesium-amide complex. The catalyst system is suitable for producing ethylene polymer and co-polymer with narrow molecular weight distribution as well as improved branching compositional distribution.

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Port Lavaca, TX, United States of America

Zhongyang Liu