Components and catalysts for the polymerization of olefins

Details Components and catalysts for the polymerization of olefins Components and catalysts for the polymerization of olefins

2007-04-10

2007-04-10

Choi, Ling-Sui (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S124200, C526S348000, C526S142000, C526S139000, C502S103000, C502S121000, C502S125000, C502S115000

Reexamination Certificate

active

10527298

ABSTRACT:
The present invention relates to a solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbon radical with 1–12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from succinates, said catalyst component being obtainable by a process comprising the following steps: (a) dissolving a halide of magnesium in a solvent system comprising an organic epoxy compound or an organic phosphorus compound and optionally an inert diluent to form a solution; (b) mixing the obtained solution with a titanium compound to form a mixture; (c) precipitating a solid from the mixture obtained in step (b) in the presence of a succinate and/or an auxiliary precipitant; (d) if a succinate is not used in step (c), contacting the solid obtained in (c) with a succinate, and (e) treating the solid obtained in (c) or (d) with a titanium compound optionally in the presence of an inert diluent.

REFERENCES:
patent: 4784983 (1988-11-01), Mao et al.
patent: 5726262 (1998-03-01), Kioka et al.
patent: 6376417 (2002-04-01), Yang et al.
patent: 0855408 (1998-07-01), None
patent: 0063261 (2000-10-01), None
patent: WO 00/63261 (2000-10-01), None
patent: 03068828 (2003-08-01), None
N. R. Long et al., “Isolation and Reactions of the Lithium Di-Enolate of Diethyl Succinate,”Synthetic Communications, vol. 11(9); p. 687-696 (1981).
M. W. Ratke et al., “The Reaction of Ester Enolates with Copper (II) Salts. A Synthesis of Substituted Succinate Esters,”J. Am. Chem. Soc., vol. 93(18), p. 4605-4606 (1971).

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