Removal of thermoplastic resin coatings from paperboard with hal

Details Removal of thermoplastic resin coatings from paperboard with hal Removal of thermoplastic resin coatings from paperboard with hal

1976-06-11

1980-03-18

Bashore, S. Leon

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Waste paper or textile waste

162 55, 162 57, 134 11, 134 31, D21C 502

Patent

active

041938380

ABSTRACT:
Paperstock pieces coated with a thermoplastic resin are introduced into and agitated together in a pool of hot, saturated vapors of a liquid, halogenated hydrocarbon capable of wetting the resin. The vapors condense on the resin surface and the resin is loosened and removed by the combined actions of the agitation and of the vapors and condensate.

REFERENCES:
patent: 2413144 (1946-12-01), King
patent: 3253976 (1966-05-01), Bocci
patent: 3507742 (1970-04-01), Rice
patent: 3595741 (1971-07-01), Goss

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