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, 2020
Filed:
Aug. 05, 2014
Applicant:
Boral Ip Holdings (Australia) Pty Limited, Roswell, GA (US);
Inventor:
Russell L. Hill, San Antonio, TX (US);
Assignee:
Boral IP Holdings (Australia) Pty Limited, North Sydney, AU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 28/14 (2006.01); B29C 44/12 (2006.01); E04B 1/94 (2006.01); E04B 2/72 (2006.01); C04B 111/00 (2006.01); C04B 111/10 (2006.01); B29K 79/00 (2006.01); B29K 105/04 (2006.01); B29K 105/20 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
C04B 28/14 (2013.01); B29C 44/1228 (2013.01); E04B 1/942 (2013.01); E04B 2/723 (2013.01); B29K 2079/00 (2013.01); B29K 2105/04 (2013.01); B29K 2105/20 (2013.01); B29L 2031/776 (2013.01); C04B 2111/0062 (2013.01); C04B 2111/1006 (2013.01); Y02W 30/92 (2015.05); Y02W 30/97 (2015.05);
Abstract
The present invention relates to the use of sacrificial agents to counteract the deleterious impact of gypsum contaminants on the effectiveness of certain stucco additives, particularly, water reducing agents and foaming agents, in a stucco slurry used to make gypsum wallboard.