Catalyst for bulk polymerization

Details Catalyst for bulk polymerization Catalyst for bulk polymerization

2005-03-01

2005-03-01

Cheung, William K. (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S146000, C526S152000, C526S317100, C526S319000, C526S335000, C526S341000

Reexamination Certificate

active

06861486

ABSTRACT:
A catalyst for bulk polymerization comprising an organometallic compound represented by specified formula and a thiol is provided. The specified organometallic compound is a metallocene compound such as titanocene or zirconocene. The use of this bulk polymerization catalyst comprising a metallocene compound and a thiol enables stable bulk polymerization of a polymerizable unsaturated compound such as an acrylic monomer, the reaction control of which has been difficult in the bulk polymerization of the prior art.

REFERENCES:
patent: 3960824 (1976-06-01), Hicks
patent: 6-25358 (1994-02-01), None
patent: 9-5996 (1997-01-01), None
patent: 09005996 (1997-01-01), None

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