Catalst for olefin polymerization and process for producing poly

Details Catalst for olefin polymerization and process for producing poly Catalst for olefin polymerization and process for producing poly

1998-08-19

2000-08-01

Wu, David W.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

5261253, 5261255, 5261249, 526351, 502125, C08F 4649

Patent

active

060968443

ABSTRACT:
A catalyst for olefin polymerization comprising: (A) a solid catalyst component comprising a titanium compound, a magnesium compound, and a halogen compound; (B) an organoaluminum compound; (C) a first organosilicon compound represented by formula (I): ##STR1## wherein R.sup.1 represents a hydrocarbon group having 1 to 4 carbon atoms; R.sup.2 represents a hydrocarbon group having 1 to 6 carbon atoms or a hydrogen atom; R.sup.3 and R.sup.4 each represent a hydrocarbon group having 1 to 6 carbon atoms; and R.sup.2, R.sup.3, and R.sup.4 may be the same or different; and (D) a second organosilicon compound represented by formula (II): ##STR2## wherein R.sup.5 represents a hydrocarbon group having 1 to 4 carbon atoms; and R.sup.6, R.sup.7, and R.sup.8, which may be the same or different, each represent a hydrocarbon group having 1 to 6 carbon atoms or a hydrogen atom.

REFERENCES:
patent: 4829038 (1989-05-01), Hoppin et al.
patent: 5147839 (1992-09-01), Fujita et al.
patent: 5407883 (1995-04-01), Fushimi et al.
patent: 5652303 (1997-07-01), Ishimaru et al.

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