Back to results
US 5,451,451 AGranted
Plastic based laminates comprising a fiber reinforced plastic lofted core and outer parallel sheets of thermoset resin impregnated cotton liner paper
AssigneeGeneral Electric Company
InventorMichael G. Minnick
Life of this patent
Estimating the term…
Abstract
A light weight, high strength laminate having improved fire resistant characteristics and the method of making the same. A preferred embodiment includes a low density fiber reinforced thermoplastic resin core between two parallel sheets of high density fiber reinforced thermoset resin. Another embodiment includes a core of polymeric foam laminated between two parallel inner fiber reinforced thermoplastic resin layers each of which face an outer layer of fiber reinforced thermoplastic resin.
Claims4
A light weight, high strength, fire and high temperature resistant laminate comprising:
- a. two spaced substantially parallel sheets of fire resistant fiber reinforced thermoset resin comprising a phenolic modified epoxy thermoset resin impregnated into cotton linter paper;
- and
- b. at least one layer of fire resistant lofted fibers laminated between said two parallel sheets of fiber reinforced thermoset resin, wherein said lofted fibers have an average diameter of from about twelve (12) to about twenty-three (23) microns and have a high modulus of elasticity at temperatures to at least about 400 degrees Centigrade, said layer of said fire resistant lofted fibers including an organic thermoplastic binder material for bonding and holding said lofted fibers together in compression wherein said fibers are released by said binder material at high temperatures for expanding said one layer for enhanced fire resistance.
Dependencies are inferred from the claim text.