Cultured stone material and related products and methods
AssigneeAmerican Selenite, LLC
InventorGeorge C. Hawley
Life of this patent
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Abstract
Cultured stone materials, and products including the same, have a plastic component and particulate calcium sulfate filler, which may be a calcium sulfate filler in the form of calcium sulfate dihydrate filler that provides fire retardancy, and the filer provides other processing and product benefits. The cultured stone materials may be made by converting a mixture of a plastic component and particulate calcium sulfate filler to a rigid shaped form.
Claims68
A cultured stone material, comprising a plastic component and particulate calcium sulfate filler, the particulate calcium sulfate filler having a weight average particle size of no larger than 3 microns.
A method for making a cultured stone material, the method comprising converting a mixture to a rigid shaped form, wherein the mixture comprises a plastic component and a particulate calcium sulfate filler, with the particulate calcium sulfate filler having a weight average particle size of no larger than 3 microns.
Use of particulate calcium sulfate filler having a weight average particle size of no larger than 3 microns as a filler in a cultured stone material.
Dependencies are inferred from the claim text.