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:
Oct. 29, 2013
Filed:
Oct. 28, 2011
Dick C. Engbrecht, Arlington Heights, IL (US);
Qingxia Liu, Vernon Hills, IL (US);
Michael P. Shake, Johnsburg, IL (US);
Xuming Wang, Mundelein, IL (US);
David Paul Miller, Lindenhurst, IL (US);
Michael L. Bolind, Ingelside, IL (US);
Paul Reed, Kankakee, IL (US);
Donald L. Roelfs, West Burlington, IA (US);
Rafael Bury, Wheeling, IL (US);
Dick C. Engbrecht, Arlington Heights, IL (US);
Qingxia Liu, Vernon Hills, IL (US);
Michael P. Shake, Johnsburg, IL (US);
Xuming Wang, Mundelein, IL (US);
David Paul Miller, Lindenhurst, IL (US);
Michael L. Bolind, Ingelside, IL (US);
Paul Reed, Kankakee, IL (US);
Donald L. Roelfs, West Burlington, IA (US);
Rafael Bury, Wheeling, IL (US);
United States Gypsum Company, Chicago, IL (US);
Abstract
A fibrous mat-faced cementitious article comprising (a) a cementitious core, and (b) a first fibrous mat comprising polymer or mineral fibers and a hydrophobic finish on at least one surface thereof, wherein the hydrophobic finish is in contact with the cementitious core, and a method of preparing a fibrous mat-faced cementitious article, as well as a method of preparing a water-resistant cementitious article comprising (a) preparing an aqueous siloxane dispersion, wherein the dispersion comprises about 4 wt. % to about 8 wt. % siloxane, (b) combining the siloxane dispersion with a cementitious mixture to provide a cementitious slurry, (c) depositing the cementitious slurry onto a substrate, and (d) allowing the cementitious slurry to harden, thereby providing a cementitious article.