Stock material or miscellaneous articles – Hollow or container type article – Cellular material derived from plant or animal source
Patent
1984-01-20
1985-03-12
Kittle, John E.
Stock material or miscellaneous articles
Hollow or container type article
Cellular material derived from plant or animal source
428280, 220 3, B65D 116
Patent
active
045045305
ABSTRACT:
A method of making hollow, fiber-reinforced resin articles having a resin-rich interior coating is disclosed. The interior coating provides a chemically resistant surface and inhibits wicking of fluids through the sidewall of the tank which tends to degrade the resin. The coating is formed by positioning a hollow lay-up of loosely felted reinforcing fibers against the inner surface of a rigid mold having a cylindrical wall portion and domed end portions. A polyester fiber surfacing fabric is placed against the inner surface of the lay-up. The surfacing fabric and lay-up are compressed against the mold wall by a pressurized inflatable core to hold the fabric and lay-up in place. A metered amount of a thermosetting resin is injected into the mold, and the pressure of the inflatable core is increased to compress the lay-up, to evenly distribute the resin throughout the lay-up, and to form a resin-rich coating with said surfacing fabric.
REFERENCES:
patent: Re25241 (1956-04-01), Randolph
patent: 2977269 (1958-06-01), Nerwick
patent: 3937781 (1976-02-01), Allen
patent: 4124678 (1978-11-01), Stroupe
Kittle John E.
Seidleck James J.
Structural Fibers, Inc.
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