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. 10, 2015
Filed:
Oct. 15, 2013
Applicant:
United States Gypsum Company, Chicago, IL (US);
Inventors:
Bangji Cao, Naperville, IL (US);
Weixin D. Song, Vernon Hills, IL (US);
Cesar Chan, Libertyville, IL (US);
Scott Leckie, McHenry, IL (US);
Assignee:
United States Gypsum Company, Chicago, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 13/00 (2006.01); E04B 1/94 (2006.01); E04B 2/28 (2006.01);
U.S. Cl.
CPC ...
E04B 1/94 (2013.01); B32B 13/00 (2013.01); E04B 2/28 (2013.01);
Abstract
Described herein is a composite board and a method of producing a composite board, the board having increased fire endurance. The board comprises a sheet having a thickness greater than about 0.014 inches, and a thermal conductivity of about 0.1 w/(m.k.) or less. The composite board can be part of a wall assembly comprising two boards defining an interior cavity, the sheet facing the interior cavity.