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:
Dec. 08, 2020
Filed:
Mar. 31, 2017
Applicant:
Certainteed Gypsum, Inc., Malvern, PA (US);
Inventors:
Choung-Houng Lai, Acton, MA (US);
Gerald Boydston, Cody, WY (US);
Bryan Wiltzius, Largo, FL (US);
Nathan Frailey, Cody, WY (US);
Michael J. Lemberger, Dudley, MA (US);
Assignee:
CERTAINTEED GYPSUM, INC., Malvern, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 27/12 (2006.01); B32B 5/02 (2006.01); B32B 13/14 (2006.01); B32B 37/15 (2006.01); E04C 2/04 (2006.01); E04C 2/26 (2006.01); B32B 13/02 (2006.01); B32B 27/28 (2006.01); B32B 13/12 (2006.01); B32B 7/12 (2006.01); B32B 13/04 (2006.01); B32B 27/06 (2006.01); B32B 27/36 (2006.01); B32B 37/12 (2006.01); B32B 3/26 (2006.01); E04C 2/52 (2006.01); B32B 27/32 (2006.01); B32B 19/04 (2006.01); B32B 27/34 (2006.01); B32B 37/24 (2006.01); B32B 38/00 (2006.01); B32B 37/02 (2006.01);
U.S. Cl.
CPC ...
B32B 27/12 (2013.01); B32B 3/266 (2013.01); B32B 5/022 (2013.01); B32B 5/024 (2013.01); B32B 7/12 (2013.01); B32B 13/02 (2013.01); B32B 13/04 (2013.01); B32B 13/12 (2013.01); B32B 13/14 (2013.01); B32B 19/045 (2013.01); B32B 27/06 (2013.01); B32B 27/281 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 37/12 (2013.01); B32B 37/153 (2013.01); B32B 37/24 (2013.01); B32B 38/164 (2013.01); E04C 2/043 (2013.01); E04C 2/26 (2013.01); E04C 2/528 (2013.01); B32B 37/02 (2013.01); B32B 2250/04 (2013.01); B32B 2250/05 (2013.01); B32B 2250/40 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2260/021 (2013.01); B32B 2260/044 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/10 (2013.01); B32B 2262/101 (2013.01); B32B 2262/14 (2013.01); B32B 2307/50 (2013.01); B32B 2307/51 (2013.01); B32B 2307/536 (2013.01); B32B 2307/54 (2013.01); B32B 2307/7246 (2013.01); B32B 2307/732 (2013.01); B32B 2315/085 (2013.01); B32B 2315/18 (2013.01); B32B 2419/00 (2013.01); B32B 2607/00 (2013.01);
Abstract
A building board including a cementitious layer between two fiber mats. At least one fiber mat forms with a polymer film a fiber mat/polymer film laminate. The cementitious layer of the building board contains a reactive water-insoluble polymer which improves binding of the fiber mat/polymer film laminate to the cementitious layer. The building board has a low water absorption and a high level surface finish.