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.

Date of Patent:
Sep. 17, 2024

Filed:

Apr. 11, 2022
Applicant:

Pyrotek High Temperature Industrial Products Inc., Drummondville, CA;

Inventors:

Marcel Gouin, Sherbrooke, CA;

François Veillette, Saint-Camille, CA;

Alain Simard, Chicoutimi, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/565 (2006.01); C04B 35/14 (2006.01); C04B 35/22 (2006.01); C04B 35/63 (2006.01); C04B 35/632 (2006.01); C04B 35/64 (2006.01);
U.S. Cl.
CPC ...
C04B 35/565 (2013.01); C04B 35/14 (2013.01); C04B 35/22 (2013.01); C04B 35/6316 (2013.01); C04B 35/632 (2013.01); C04B 35/64 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/3454 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/6027 (2013.01); C04B 2235/656 (2013.01); C04B 2235/77 (2013.01); C04B 2235/9669 (2013.01);
Abstract

A method of making a refractory article is provided. The method includes: a) mixing a binder system, a refractory charge, and a second colloidal binder to form an aqueous slurry; b) casting the aqueous slurry into a mold; c) subjecting the mold containing the aqueous slurry to a temperature that is lower than a slurry casting temperature for a time sufficient to form a green strength article; and d) firing the green strength article at a temperature of at least 450° C. for a time sufficient to achieve thermal homogeneity, thereby forming a refractory article. Refractory articles made in accordance with the method have a unique combination of pore structure and mechanical properties.


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