Removing residual volatiles from polymer dispersions

Details Removing residual volatiles from polymer dispersions Removing residual volatiles from polymer dispersions

1999-06-23

2000-08-01

Boykin, Terressa M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528480, C08F 600

Patent

active

060968583

ABSTRACT:
The process of the present invention for removing residual volatiles from polymer dispersions by performing first chemical deodorization using an initiator to remove residual monomers and then physical deodorization to remove volatile constituents comprises conducting the chemical deodorization for as long as the decrease in monomers is greater than the increase in secondary components introduced into the dispersion by the initiator, to result reliably in polymer dispersions having a residual volatiles content of less than or equal to 100 ppm.

REFERENCES:
patent: 4529753 (1985-07-01), Taylor
patent: 5430127 (1995-07-01), Kelly
Chemical Abstracts, AN 90-379P, DE 1,248,943, Jul. 20, 1965.
Derwent Abstracts, AN 98-010108, DE 196 21 027, Nov. 27, 1997.
Derwent Abstracts, DE 19716373, Apr. 18, 1997 corresponding abstract of WO 97/45184 Dec. 4, 1997.

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