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US 7,479,324 B2Granted
Pigments comprising alumina hydrate and a dye, and polymer composites formed thereof
AssigneeSaint-Gobain Ceramics & Plastics, Inc.
InventorsCatherine Bianchi, Shamshad Noor, Christopher L. Mirley, Ralph Bauer, Doruk Yener
Life of this patent
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Abstract
A composite material includes a polymer matrix and a pigment dispersed in the polymer matrix. The pigment includes an alumina hydrate particulate material and a dye. The dye is covalently bonded to a surface of the alumina hydrate particulate material.
Claims6
A pigment comprising an alumina hydrate particulate material and a dye, the dye being directly covalently bonded to an oxygen atom on the surface of the alumina hydrate particulate material.
Dependencies are inferred from the claim text.