CATALYST COMPOSITIONS AND POLYOLEFINS FOR USE IN COATINGS, DEPOSITED USING EXPEDITION METHOD Russian patent published in 2009 - IPC C08F210/16 C08F4/642 C08F4/16 

FIELD: chemistry.

SUBSTANCE: invention relates to organometallic compositions, catalyst compositions for polymerisation of olefins, methods of polymerisation and copolymerisation of olefins using a catalyst composition and polyolefins. Described is a catalyst composition for polymerisation of olefins, which contains a product for bringing into contact the first metallocene compound, second metallocene compound, at least one chemically modified solid oxide and at least one organoaluminium compound; a mixture of linked substances; method of producing catalyst composition; method of polymerisation of olefins, involving bringing into contact at least one type of olefin monomer and a catalyst composition under polymerisation conditions; ethylene polymer, obtained using the previous method; product which contains the polymer in the previous paragraph; product which contains the polymer in the above mentioned paragraph, where the product is a container, dish, film-type product, cylindrical reservoir, fuel tank, pipe, geomembrane or insert; use of the catalyst composition in any of the above mentioned paragraphs in an olefin polymerisation reaction; use of a mixture of linked substances on the above mentioned paragraph in an olefin polymerisation reaction; polymer obtained using the method given above.

EFFECT: obtaining new catalyst compositions and methods of producing them, which allow for achieving high activity during polymerisation and keeping properties of the polymer within the limits of desired ranges of technical characteristics.

60 cl, 14 ex, 6 tbl