Recovery of synthetic polymer from solvents

Details Recovery of synthetic polymer from solvents Recovery of synthetic polymer from solvents

1978-06-26

1979-08-28

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

260 302, 260 304R, 260 326R, 260 336UA, 528491, 528496, C08F 612

Patent

active

041661710

ABSTRACT:
This invention concerns a method for the removal and recovery of synthetic polymers from solvents using dropwise impingement of a solution of the polymer in a solvent upon a mobile capillary inactive liquid surface to volatilize and recover the solvent, leaving the previously dissolved synthetic polymer on the surface of the capillary inactive liquid. The solvent is recovered by condensation for reuse and the polymer is recovered from the surface of the liquid by mechanical means.

REFERENCES:
patent: 2389958 (1945-11-01), Crawford et al.
patent: 2592814 (1952-04-01), Ludlow
patent: 3434523 (1969-03-01), Ceausescu et al.
patent: 3553186 (1971-01-01), Schnoring et al.
patent: 3590026 (1971-06-01), Carlson et al.

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