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US 5,053,274 AGranted
Highly filled substantially solid polyurethane, urea and isocyannurate composites for indoor and outdoor applications, for load bearing, structural and decorative products
OwnerArthur E. Jonasinventor
Life of this patent
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Abstract
A composite comprises a mixture of a solid polyuretahne, polyisocyanurate and/or polyurea binder with a preponderance of a solid or liquid filler. The composite may be used indoors and outdoors, for load bearing, structural and decorative products.
Claims16
A composite comprising a mixture having a solid matrix, selected from at least one of the group consisting of a polyurethane, a polyisocyanurate, and a polyurea, with a dry solid particulate or a dry liquid filler, wherein:
- said matrix is substantialy non-foamed;
- said filler is present in an amount from 50 to 95 percent by weight of the composite;
- the composite being rigid, and useful itself as a structural material without a need for an additional strengthening element or reinforcement to achieve or maintain its structural integrity.
Dependencies are inferred from the claim text.