Process for deactivating polymerization catalyst

Details Process for deactivating polymerization catalyst Process for deactivating polymerization catalyst

1983-03-28

1984-03-13

Phynes, Lucille M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528241, 528243, 528492, 528499, C08G 228

Patent

active

044369000

ABSTRACT:
An oxymethylene copolymer produced from trioxane, a cyclic ether and/or a cyclic formal in the presence of a cationic polymerization catalyst is contacted with a deactivating agent for the catalyst in the state of gas phase at a temperature of 160.degree. C. or lower to deactivate the cationic polymerization catalyst rapidly and completely without causing degradation of the copolymer produced.

REFERENCES:
patent: 2989509 (1961-06-01), Hudgin et al.
patent: 3419529 (1968-12-01), Chase et al.
patent: 4087411 (1978-05-01), Sugio et al.
patent: 4225703 (1980-09-01), Amann et al.
patent: 4339569 (1982-07-01), Sugio et al.

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