Process for isolating pulverulent chlorinated aliphatic polymers

Details Process for isolating pulverulent chlorinated aliphatic polymers Process for isolating pulverulent chlorinated aliphatic polymers

1984-11-19

1986-05-13

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528497, C08F 612

Patent

active

045888094

ABSTRACT:
The invention relates to an improved process for isolating pulverulent chlorinated aliphatic polymers from their aliphatic chlorohydrocarbon solutions by introducing a mixture of steam and special solvent into said solutions, removing the aliphatic chlorohydrocarbon by steam distillation, and isolating the chlorinated polymer in the customary manner as a solid.
The process produces a product which is practically free (.ltoreq.20 ppm) of toxic aliphatic chlorohydrocarbons and can be safely used in paints, adhesives or printing inks.

REFERENCES:
patent: 4122249 (1978-10-01), Padget
patent: 4144203 (1979-03-01), Hoehne et al.
patent: 4381392 (1983-04-01), Pontoglio
patent: 4430483 (1984-02-01), Alfes et al.

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