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:
Apr. 24, 2018
Filed:
Mar. 31, 2016
Applicant:
United States Gypsum Company, Chicago, IL (US);
Inventors:
Yufeng Xu, Gurnee, IL (US);
Eugene S. Stivender, Yorkville, IL (US);
Assignee:
UNITED STATES GYPSUM COMPANY, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C04B 28/14 (2006.01); E04B 2/00 (2006.01); E04C 2/02 (2006.01); E04D 11/02 (2006.01); E04D 5/00 (2006.01); C04B 26/28 (2006.01); D21J 1/16 (2006.01); E04B 7/22 (2006.01); E04C 2/04 (2006.01); E04D 1/26 (2006.01); E04D 3/04 (2006.01); C04B 111/00 (2006.01); C04B 111/10 (2006.01);
U.S. Cl.
CPC ...
C04B 28/14 (2013.01); C04B 26/28 (2013.01); C04B 28/145 (2013.01); D21J 1/165 (2013.01); E04B 7/22 (2013.01); E04C 2/02 (2013.01); E04C 2/043 (2013.01); E04C 2/44 (2013.01); E04D 1/265 (2013.01); E04D 3/04 (2013.01); E04D 5/00 (2013.01); E04D 11/02 (2013.01); C04B 2111/0062 (2013.01); C04B 2111/00586 (2013.01); C04B 2111/00612 (2013.01); C04B 2111/1006 (2013.01); C04B 2111/1018 (2013.01);
Abstract
A roof cover board made from a mixture of 30-60% stucco; 20-50% perlite; 10-30% cellulose fiber; 3-20% starch; and siloxane. Also disclosed is a stucco-free roof cover board made from a mixture of 30-60% perlite, 30-60% cellulose fiber, 5-25% starch; and siloxane. Also disclosed are methods for making same.