Removal of physiologically unacceptable solvents from polymers c

Details Removal of physiologically unacceptable solvents from polymers c Removal of physiologically unacceptable solvents from polymers c

1984-01-20

1985-07-30

Henderson, Christopher A.

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

Synthetic resins

Treating polymer containing material or treating a solid...

424 78, 528497, C08F 600

Patent

active

045323208

ABSTRACT:
Physiologically unacceptable solvents are removed from polymers containing carboxyl or anhydride groups by a process in which the polymer is treated with aliphatic hydrocarbons at a temperature which is no lower than the lower limit of the softening range of the polymer.

REFERENCES:
patent: 3461108 (1969-08-01), Heilman
patent: 3706703 (1972-12-01), Heilman
patent: 3890283 (1975-06-01), Casey et al.
patent: 4012461 (1977-03-01), van Brederode
patent: 4138539 (1979-02-01), Landolt et al.
patent: 4145526 (1979-03-01), Vanlautem et al.
patent: 4293668 (1981-10-01), Heimsch

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