Method of shaping an organic polymer insoluble in a polar solven

Details Method of shaping an organic polymer insoluble in a polar solven Method of shaping an organic polymer insoluble in a polar solven

1978-10-23

1980-06-17

Lawrence, Evan K.

Coating processes

With post-treatment of coating or coating material

Chemical agent applied to treat coating

4273936, 4273899, 525329, 525385, 204296, 260 296F, 260 296SQ, 260296HN, 260 296AT, 260900, 427244, 521 27, 521 30, B05D 310

Patent

active

042084555

ABSTRACT:
A method of shaping an organic polymer insoluble in a polar solvent comprising reacting an insoluble organic polymer containing at least one Lewis acid electron attracting group or Lewis basic electron donating group with a sufficient amount of a lower alkylene oxide to alkoxylate the Lewis group and form an alkoxylated product soluble or easily dispersible in a polar solvent, dissolving or dispersing the alkoxylated product in a polar solvent, shaping the alkoxylated product into the desired form by applying the solution or dispersion to a support and removing the polar solvent, and hydrolyzing the alkoxylated product to obtain the original polymer in the desired form. Products made by the process include self-supporting polymeric films and porous diaphragms for electrolytic cells made by impregnating suitable porous supports with the alkoxylated product.

REFERENCES:
patent: 2921920 (1960-01-01), Smith et al.
patent: 3257334 (1966-06-01), Chen et al.
patent: 3356607 (1967-12-01), Eisenmann et al.
patent: 4132819 (1979-01-01), Giuffre et al.
Kirk-Othmer, Encyclopedia of Chemical Technology, 2nd ed., vol. 8, 1965, pp. 526-528.
Hawley, The Condensed Chemical Dictionary, 1974, Van Nostrand Reinhold Co., New York, pp. 96, 515.

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