Stock material or miscellaneous articles – Three dimension imitation or 'treated' natural product
Patent
1979-04-02
1980-11-25
Herbert, Jr., Thomas J.
Stock material or miscellaneous articles
Three dimension imitation or 'treated' natural product
427204, 428 35, 428325, 428431, B44F 700, B05D 136
Patent
active
042359481
ABSTRACT:
In one exemplar embodiment a simulated stone article having a pre-formed acrylic sheet "skin" is integrally bonded to a simulated stone matrix layer. The surface of the acrylic "skin" is cleaned with an inert organic solvent to make the surface more receptive to molecular bonding. A coat of urethane is applied to the acrylic "skin" surface and permitted to cure. The simulated stone matrix is a composition including a catalyzed polyester bonding resin, a simulated stone aggregate mix, coloring, veining and pigmentation agents and an exothermic reducing agent for slowing the setting time and lowering the temperature of the bonding resin for permitting greater flexing of the composition during shrinkage of the resin while curing for improving the bond between the acrylic "skin" and cured urethane, and the bonding resin of the simulated stone matrix.
REFERENCES:
patent: 3562379 (1971-02-01), Duggins
patent: 3582388 (1971-06-01), Stayner
patent: 3711581 (1973-01-01), Fowler et al.
patent: 3773886 (1973-11-01), Starr et al.
Herbert, Jr. Thomas J.
Royal Marble Company, Inc.
Springs Darryl M.
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