Hardenable epoxy resin compositions and process for making the s

Details Hardenable epoxy resin compositions and process for making the s Hardenable epoxy resin compositions and process for making the s

1975-08-15

1978-02-28

Pertilla, Theodore E.

Coating processes

With post-treatment of coating or coating material

Heating or drying

427430R, 428396, 428413, 428417, B05D 302

Patent

active

040768694

ABSTRACT:
A curable composition comprising a mixture of an epoxy resin and a hardener can be prepared by dissolving the resin and curing agent in a low boiling solvent and flashing off the solvent at temperatures in excess of 400.degree. F, the evaporating solvent cooling the composition and minimizing precure of the resin.
Reinforced composites can be prepared by passing a supporting material such as a continuous web strand or roving through the resin solution and thereafter heating at temperatures above 400.degree. F to remove the solvent without appreciably precuring the resin.
The curable epoxy compositions can be used for molding, laminating and the like.

REFERENCES:
patent: 3198850 (1965-08-01), Levantin
patent: 3479302 (1969-11-01), Saran
patent: 3523037 (1970-08-01), Chellis
patent: 3634325 (1972-01-01), Aubry
patent: 3779981 (1973-12-01), Ward

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