Reclamation of fluoropolymers

Details Reclamation of fluoropolymers Reclamation of fluoropolymers

1974-04-22

1976-08-03

Briggs, Sr., Wilbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4227, 260 8077, 260 96D, 260 877, 260899, 526 17, 526 54, 526250, 528480, 528502, C08J 1104, C08F21422, C08F21428, C08F21426

Patent

active

039728420

ABSTRACT:
Polyhydroxy-cured vinylidene fluoride fluoropolymer is reclaimed by masticating the polymer to at least the stage of initial break-down of the cured polymer network, treating the masticated polymer with hot concentrated nitric acid to cause the polymer to swell and then removing the acid. The polymer is suitably an elastomer and may be scrap polymer.

REFERENCES:
patent: 3243411 (1966-03-01), Tawney et al.

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