Process for hydrolysis removal of condensation polymer from vari

Details Process for hydrolysis removal of condensation polymer from vari Process for hydrolysis removal of condensation polymer from vari

1982-04-13

1984-01-03

Marantz, Sidney

Cleaning and liquid contact with solids

Processes

Including melting

134 31, 134 37, 134 38, B08B 300

Patent

active

044240805

ABSTRACT:
Condensation polymer coatings are removed from various objects to permit their reuse. Superheated water vapor flows in contact with the coating surfaces, excluding air therefrom while heating them to temperatures above the melting point of the polymer. The water vapor further enters into an hydrolysis reaction with the polymer to decompose it.

REFERENCES:
patent: 2907687 (1959-10-01), Scigliano
patent: 2917418 (1959-12-01), Cathcart
patent: 3119720 (1964-01-01), Stiles
patent: 3188239 (1965-06-01), Kloppers
patent: 3250643 (1966-05-01), Sergent
patent: 3426091 (1969-02-01), Miron
patent: 3485670 (1969-12-01), Fisher
patent: 3510350 (1970-05-01), Priebe
patent: 3523827 (1970-08-01), Sims
patent: 4220480 (1980-09-01), Dwan
Chemical Abstracts, 70: 12582z (1969).

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