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US 5,914,185 AGranted
Moldable dental material composition
OwnerItzhak Shoher, Aharon Eliyahu Whitemaninventors
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OwnerItzhak Shoher, Aharon Eliyahu Whitemaninventors
Estimating the term…
A moldable dental material composition comprising high-fusing temperature metal particles, a volatile binder, preferably in a concentration of above at least twenty percent (20%) of the material composition, and finely divided carbonaceous particles, preferably of activated carbon. The high-fusing temperature metal particles should have an irregular, nonspherical geometry and a thin cross-sectional average thickness. The moldable dental composition may also contain low-fusing temperature metal particles for enhanced wetting of the high-fusing metal particles during heat treatment at a heat-treatment temperature which will melt the binder and substantially melt the low-fusing metal particles, if present. Heat treatment forms a porous metal structure having a capillary network of voids and a high void volume.
A moldable dental composition comprising a multiplicity of high-fusing temperature metal particles having a melting temperature above a preselected temperature at which said dental composition is to be heat treated with at least some of said high-fusing temperature metal particles having an irregular nonspherical geometry and a cross sectional average thickness of less than 1.5 microns so as to permit said multiplicity of particles to form a layered network of overlapping particles, at least about twenty percent 20% and up to 85% by volume of a volatile binder and carbonaceous particles in a concentration above at least 0.005 wt % of the dental composition.
Dependencies are inferred from the claim text.