The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2019
Filed:
Sep. 02, 2014
Applicant:
Eestor, Inc., Cedar Park, TX (US);
Inventors:
Richard D. Weir, Cedar Park, TX (US);
Carl W. Nelson, Austin, TX (US);
Assignee:
EESTOR, INC., Cedar Park, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/468 (2006.01); C04B 35/626 (2006.01); C04B 35/49 (2006.01); C01G 1/02 (2006.01); C01G 23/00 (2006.01); C01B 13/18 (2006.01); C01B 13/36 (2006.01); C04B 40/00 (2006.01);
U.S. Cl.
CPC ...
C04B 35/4682 (2013.01); C01B 13/185 (2013.01); C01B 13/363 (2013.01); C01G 1/02 (2013.01); C01G 23/003 (2013.01); C01G 23/006 (2013.01); C04B 35/49 (2013.01); C04B 35/62655 (2013.01); C04B 40/0082 (2013.01); C01P 2002/34 (2013.01); C01P 2002/72 (2013.01); C01P 2004/03 (2013.01); C01P 2004/51 (2013.01); C01P 2004/53 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/40 (2013.01); C01P 2006/80 (2013.01); C01P 2006/90 (2013.01); C04B 2235/3208 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/441 (2013.01); C04B 2235/449 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/5472 (2013.01); C04B 2235/5481 (2013.01); C04B 2235/762 (2013.01);
Abstract
A method of forming composition-modified barium titanate ceramic particulate includes mixing a plurality of precursor materials and a precipitant solution to form an aqueous suspension. The plurality of precursors include barium nitrate, titanium chelate, and a metal or oxometal chelate. The precipitant solution includes tetraalkylammonium hydroxide and tetraalkylammonium oxalate. The method further includes treating the aqueous suspension at a temperature of at least 150° C. and a pressure of at least 200 psi, and separating particulate from the aqueous suspension after treating.