Process for drying carboxyl containing polymers of vinylidene mo

Details Process for drying carboxyl containing polymers of vinylidene mo Process for drying carboxyl containing polymers of vinylidene mo

1988-06-17

1990-09-04

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528503, 34 10, C08F 624

Patent

active

049546155

ABSTRACT:
A slurry mixture comprising a carboxyl containing polymer of vinylidene monomers having at least one terminal methylene group and a polymerizing solvent is effectively dried by way of: passing said mixture through one or a plurality of preheated double pipe heat exchangers in order to produce a two-phase mixture comprising the pulverized polymer and the vaporized solvent; and, then, feeding said two-phase mixture to a rotary vacuum dryer in order to further remove and separate the vaporized solvent from the powdery polymer.

REFERENCES:
patent: 4126743 (1978-11-01), Shiomura et al.
Hackh's Chemical Dictionary (4th ed.), McGraw-Hill, Inc., N.Y., 281, 1969.
Textbook of Polymer Science, Billmeyer, Jr., 2d ed, Wiley-Interscience, N.Y., 208-09, 1962.

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