Process permitting a polymerization batch to be additionally coo

Details Process permitting a polymerization batch to be additionally coo Process permitting a polymerization batch to be additionally coo

1975-12-02

1977-11-01

Holler, Alan

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 68, C08F 218, C08F 1406

Patent

active

040566676

ABSTRACT:
Improved process permitting a vinyl chloride batch which is to undergo polymerization in suspension, to be additionally cooled. Gaseous matter formed in the gas chamber of a polymerization vessel is delivered through a pipe connection communicating with the gas chamber and a reflux condenser, to the reflux condenser and condensed therein, and the resulting condensate is returned to the polymerization vessel. In the improved process one or more nozzle structures are used to inject fully desalted water into the pipe connection over the entire polymerization period. The spray water has an approximate temperature of from 5.degree. to 45.degree. C and is used in a proportion of at least 10% by volume, based on the overall quantity of water necessary for effecting the polymerization.

REFERENCES:
patent: RE22210 (1942-10-01), De Simo et al.
patent: 3350377 (1967-10-01), Norwood
patent: 3578649 (1971-05-01), Badguerahanian
patent: 3595848 (1971-07-01), Reinecke et al.
patent: 3627744 (1971-12-01), Hopkins et al.
patent: 3825512 (1974-07-01), Reiter et al.
patent: 3891603 (1975-06-01), Heil et al.

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