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:
Jul. 14, 2026
Filed:
Dec. 09, 2021
Applicant:
Unifrax I Llc, Tonawanda, NY (US);
Inventors:
Donghui Zhao, Amherst, NY (US);
Jason M. Hamilton, Lancaster, NY (US);
Karen L. Hanson, Youngstown, NY (US);
Mauricio Munhoz De Souza, Amherst, NY (US);
Assignee:
UNIFRAX I LLC, Tonawanda, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 13/00 (2006.01); C03B 37/01 (2006.01); C03C 3/087 (2006.01); C03C 4/00 (2006.01);
U.S. Cl.
CPC ...
C03C 13/00 (2013.01); C03B 37/01 (2013.01); C03C 3/087 (2013.01); C03C 4/0014 (2013.01); C03C 2204/00 (2013.01); C03C 2213/02 (2013.01);
Abstract
A high temperature resistant inorganic fiber includes 72 to 77.3 weight percent silica; 10.2 to 15 weight percent magnesia; 12.4 to 17 weight percent calcia; 0 to 1.5 weight percent alumina; and 0 to 0.6 weight percent total alkali oxides; the fiber has a use temperature of at least 1260° C.; the fiber may exhibit a shrinkage of greater than 5% after exposure to a temperature of 1400° C. for 24 hours; and the fiber may have a melt temperature of less than 1400° C.