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Title:
CATALYST SYSTEM FOR ETHYLENE POLYMERIZATION OR COPOLYMERIZATION, ETHYLENE POLYMERIZATION OR COPOLYMERIZATION, POLYMER AND PRODUCT THEREFROM
Document Type and Number:
Japanese Patent JPS63304008
Kind Code:
A
Abstract:
Catalyst system, suitable for the (co)polymerization of ethylene and optionally minor amounts of 1-alkenes and/or dienes at such temperatures that the copolymer formed goes into solution, to be prepared by combining at least two components A and B, which components comprise: A : one or more magnesium compounds, one or more aluminium compounds, one or more transition metal compounds and optionally one or more halogen compounds, in such amounts that the atomic ratio of halogen to magnesium is at least 2, the atomic ratio of aluminium to transition metal is at least 3, the atomic ratio of aluminium to magnesium is at least 1, and the atomic ratio of magnesium to transition metal is at least 0.5, B : one or more organoaluminium. compounds of the general formula Rm<1>Al X<1>3-m, where the symbols R<1> are equal or different and represent a hydrocarbon residue with 1-20 carbon atoms and the symbols X<1> are equal or different and represent a hydrogen atom, a group of the general formula -NR<2>2 (where R<2> is a hydrocarbon residue with 1-10 carbon atoms), a group of the general formula -OR<3> (where R<3> is a hydrocarbon residue with 1-20 carbon atoms or a group of the general formula -Si(R<4>)3, where the symbols R<4> are equal or different and represent a hydrogen atom and/or a hydrocarbon residue with 1-20 carbon atoms), and 0 < m < 3, or a group of the general formula -[OAlR<5>)]n-OAlR2<5>, where the symbols R<5> are equal or different and represent a hydrocarbon residue with 1-10 carbon atoms, and n >/= 0, which two components are, separately or in combination, supplied direct to the polymerization vessel in such amounts that the atomic ratio of the aluminium from component B to the aluminium from component A is at least 0.1.

Inventors:
RUUKU MARIA KONSUTANTO KOOZEMA
FURANSU YOOZEFU PAURUSU GERARU
Application Number:
JP3070688A
Publication Date:
December 12, 1988
Filing Date:
February 12, 1988
Export Citation:
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Assignee:
STAMICARBON
International Classes:
B01J37/04; C08F4/60; B01J31/14; C08F4/62; C08F4/64; C08F4/646; C08F4/652; C08F4/659; C08F10/02; C08F210/16; (IPC1-7): C08F4/64; C08F10/02