Catalyst for producing syndiotactic configuration styrene-based

Details Catalyst for producing syndiotactic configuration styrene-based Catalyst for producing syndiotactic configuration styrene-based

1990-10-01

1991-06-11

Garvin, Patrick P.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502110, 502111, 526153, C08F 4642

Patent

active

050232223

ABSTRACT:
A catalyst for producing styrene-based polymers having mainly syndiotactic configuration which comprises (A) a titanium compound and (B) a contact product of a methyl group-containing organoaluminum compound and water, wherein the contact product (B) has a high magnetic field component of not more than 50% in the methyl proton signal region due to an aluminum-methyl group (Al-CH.sub.3) bond as determined by the proton nuclear magnetic resonance absorption method.

REFERENCES:
patent: 3534006 (1970-10-01), Kamaishi et al.
patent: 4680353 (1987-07-01), Ishihara et al.

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