| US 7,582,277 B2 | ||
| Seeded boehmite particulate material and methods for forming same | ||
| Ralph Bauer, Niagara Falls (Canada); Margaret L. Skowron, Niagara Falls, N.Y. (US); Martin Barnes, Ransomville, N.Y. (US); and Doruk O. Yener, Grafton, Mass. (US) | ||
| Assigned to Saint-Gobain Ceramics & Plastics, Inc., Worcester, Mass. (US) | ||
| Filed on Aug. 06, 2007, as Appl. No. 11/834,527. | ||
| Application 11/834527 is a continuation in part of application No. 10/845764, filed on May 14, 2004, abandoned. | ||
| Application 10/845764 is a continuation in part of application No. 10/823400, filed on Apr. 13, 2004. | ||
| Application 10/823400 is a continuation in part of application No. 10/414590, filed on Apr. 16, 2003, granted, now 7,189,775. | ||
| Claims priority of provisional application 60/374014, filed on Apr. 19, 2002. | ||
| Prior Publication US 2008/0031808 A1, Feb. 07, 2008 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. C01F 7/04 (2006.01) | ||
| U.S. Cl. 423—625 [423/111; 117/6] | 14 Claims |
| 1. A method for forming boehmite particulate material, comprising:
providing a boehmite precursor and boehmite seeds in a suspension; and
heat treating the suspension to convert the boehmite precursor into boehmite particulate material, the boehmite particulate
material having an aspect ratio of not less than 3:1, wherein the boehmite seeds provide a nucleation site for the growth
of the boehmite particulate material.
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