Solid catalyst component for polymerization comprising ti,...

C - Chemistry – Metallurgy – 08 – F

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C08F 4/654 (2006.01) C08F 4/649 (2006.01) C08F 10/00 (2006.01) C08F 110/06 (2006.01)

Patent

CA 2476273

The present invention provides a solid catalyst component for the polymerization of olefins, comprising magnesium, titanium, a halogen and an electron donor, wherein said electron donor comprises at least one selected from the group consisting of polyol ester compounds of the formula (I): R~1CO- O-CR~3R~4-A-CR~5R~6-O-CO-R~2 (I) wherein, R~1 and R~2 groups, which may be identical or different, can be substituted or unsubstituted hydrocarbyl having 1 to 20 carbon atoms, R~3-R~6 groups, which may be identical or different, can be selected from the group consisting of hydrogen, halogen or substituted or unsubstituted hydrocarbyl having 1 to 20 carbon atoms, R~1-R~6 groups optionally contain one or more hetero-atoms replacing carbon, hydrogen atom or the both, said hetero-atom is selected from the group consisting of nitrogen, oxygen, sulfur, silicon, phosphorus and halogen atom, two or more of R~3-R~6 groups can be linked to form saturated or unsaturated monocyclic or polycyclic ring; A is a single bond or bivalent linking group with chain length between two free radicals being 1-10 atoms, wherein said bivalent linking group is selected from the group consisting of aliphatic, alicyclic and aromatic bivalent radicals, and can carry C~1-C~20 linear or branched substituents; one or more of carbon atom and/or hydrogen atom on above-mentioned bivalent linking group and substituents can be replaced by a hetero-atom selected from the group consisting of nitrogen, oxygen, sulfur, silicon, phosphorus, and halogen atom, and two or more said substituents on the linking group as well as above-mentioned R~3-R~6 groups can be linked to form saturated or unsaturated monocyclic or polycyclic ring.

L'invention concerne un composant de catalyseur solide pour la polym~risation d'ol~fines. Ce composant comprend du magn~sium, du titane, un halog­ne et un donneur d'~lectron, ce donneur d'~lectron comprenant au moins un compos~ choisi dans le groupe des compos~s polyolesters de formule (I) : R´1?CO-O-CR´3?R´4?-A-CR´5?R´6?-O-CO-R´2?, dans laquelle R´1? et R´2?, qui peuvent Útre identiques ou diff~rents, peuvent Útre un groupe hydrocarbyle substitu~ ou non substitu~ comportant 1 ~ 20 atomes de carbone, R´3? ~ R´6?, qui peuvent Útre identiques ou diff~rents, peuvent Útre choisis dans le groupe comprenant les atomes d'hydrog­ne et d'halog­ne et un groupe hydrocarbyle substitu~ ou non substitu~ comportant 1 ~ 20 atomes de carbone, R´1? ~ R´6? contiennent ~ventuellement un ou plusieurs h~t~roatomes rempla×ant les atomes de carbone ou d'hydrog­ne, ou les deux, ces h~t~roatomes ~tant choisis dans le groupe comprenant les atomes d'azote, d'oxyg­ne, de soufre, de silicium, de phosphore et d'halog­ne, au moins deux des groupes R´3? ~ R´6? peuvent Útre li~s pour former un syst­me monocyclique ou polycyclique satur~ ou non satur~ ; A est une liaison simple ou un groupe de liaison bivalent pr~sentant une longueur de cha¹ne entre deux radicaux libres comprise entre 1 et 10 atomes, ce groupe de liaison bivalent ~tant choisi dans le groupe comprenant des radicaux bivalents aliphatiques, alicycliques et aromatiques, et peut comporter des substituants lin~aires ou ramifi~s C´1?-C´20? ; un ou plusieurs des atomes de carbone et/ou d'hydrog­ne du groupe de liaison bivalent et des substituants susmentionn~s peuvent Útre remplac~s par un h~t~roatome choisi dans le groupe comprenant les atomes d'azote, d'oxyg­ne, de soufre, de silicium, de phosphore et d'halog­ne et au moins deux constituants parmi les substituants du groupe de liaison et parmi les groupes R´3? ~ R´6? susmentionn~s peuvent Útre li~s pour former un syst­me monocyclique ou polycyclique satur~ ou non satur~.

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