Process for the preparation of a catalyst component for the...

Details Process for the preparation of a catalyst component for the... Process for the preparation of a catalyst component for the...

2011-05-24

2011-05-24

Choi, Ling-Siu (Department: 1762)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S124300, C526S348000, C502S103000, C502S115000, C502S128000, C502S132000

Reexamination Certificate

active

07947788

ABSTRACT:
The invention is directed to a process for the preparation of a catalyst component wherein a compound with formula Mg(OAlk)xClywherein x is larger than 0 and smaller than 2, y equals 2−x and each Alk, independently represents an alkyl group, is contacted with a titanium tetraalkoxide and/or an alcohol in the presence of an inert dispersant to give an intermediate reaction product and wherein the intermediate reaction product is contacted with titanium tetrachloride in the presence of an internal donor.The invention also relates to a polymerization catalyst comprising the catalyst component and furthermore the invention relates to the polymerization of an olefin in the presence of the polymerization catalyst comprising the catalyst component.

REFERENCES:
patent: 4315835 (1982-02-01), Scata′ et al.
patent: 5229342 (1993-07-01), Job
patent: 5262573 (1993-11-01), Smith et al.
patent: 0 398 698 (1990-11-01), None
patent: WO 96/32426 (1996-10-01), None
patent: WO 96/32427 (1996-10-01), None
patent: WO 01/23441 (2001-04-01), None
S. Van Der Ven, Polypropylene and Other Polyolefins, Elsevier, 1990, pp. 8-10, vol. 7.

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