Chemical treatment of poly(arylene sulfide)-containing articles

Details Chemical treatment of poly(arylene sulfide)-containing articles Chemical treatment of poly(arylene sulfide)-containing articles

1974-10-31

1981-02-17

Smith, Ronald H.

Coating processes

With post-treatment of coating or coating material

Chemical agent applied to treat coating

427400, 4273935, 528388, 528486, 528488, 528490, B05D 310

Patent

active

042515750

ABSTRACT:
The high temperature properties of an article having at least a portion of its surface formed of an arylene sulfide polymer is improved by treating such article with a treating agent selected from the group consisting of hydrogen peroxide, an alkali metal or alkaline earth metal hypochlorite, sulfuric acid, chlorine, sulfuryl chloride, nitrogen dioxide, chromium trioxide, alkali metal permanganates and nitric acid under conditions of concentration of treating agent, time and temperature to effect the desired improvement. Treated articles such as coated substrates and moldings exhibit increased high temperature surface hardness. Articles such as fibers, yarns, fabrics and films exhibit infusibility at 700.degree. F. (371.degree. C.).

REFERENCES:
patent: 2720440 (1955-10-01), Wallace
patent: 2751277 (1956-06-01), Coover et al.
patent: 3793256 (1974-02-01), Scoggin
patent: 3817936 (1974-06-01), Jones et al.
patent: 3839301 (1974-10-01), Scoggins
patent: 3856560 (1974-12-01), Blackwell
patent: 3869434 (1975-03-01), Campbell et al.
patent: 3884883 (1975-05-01), Moberly
patent: 3948865 (1976-04-01), Brady et al.

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