Molded polymer composite
AssigneeKearney & Trecker Corporation
InventorsRichard Johnstone, Edward E. Kirkham, Edward J. Hummelt
Life of this patent
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Abstract
A composite for constructing an article which is composed of a nonmetallic substance as represented by igneous rock of different particle sizes which are compacted and then surrounded by a solidified plastic resin. In a preferred manner, the igneous rock material is a selected type of basalt with the basalt particles being of different mesh sizes to be compacted into a mold. After compaction, the plastic resin as represented by an epoxy resin is introduced into the mold so as to displace air from any voids surrounding the basalt particles and to surround them with a resin which later solidifies. A novel resin delivery system is also presented.
Claims15
A composite for constructing an article comprising:
- an aggregate formed of igneous rock material in a multiplicity of solid particles having discrete different particle sizes arranged so that the particles of one size are disposed in the interstices formed between the particles of the next larger size and compacted in a manner to result in a high degree of rock-to-rock contact with a minimum number and volume of voids between the solid particles;
- and
- a solidified plastic resin filling said voids between said solid particles, said solidified resin providing a bonding material for said solid particles.
Dependencies are inferred from the claim text.