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:
Nov. 22, 2016
Filed:
Dec. 30, 2014
Applicant:
Georgia-pacific Gypsum Llc, Atlanta, GA (US);
Inventors:
Vincent B. Thomas, Bogart, GA (US);
Jeffrey T. Fields, Suwanee, GA (US);
Assignee:
Georgia-Pacific Gypsum LLC, Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B 1/82 (2006.01); E04F 15/20 (2006.01); C04B 28/14 (2006.01); C04B 111/52 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
E04B 1/82 (2013.01); C04B 28/147 (2013.01); E04F 15/20 (2013.01); C04B 2111/00612 (2013.01); C04B 2111/52 (2013.01); Y02W 30/92 (2015.05);
Abstract
Building materials include a dampening layer which contains a plaster and a viscoelastic polymer, such as polyvinyl butyral. The dampening layer may also include a barium salt. Methods of making a sound dampening material include providing a plaster mixture. The mixture may include a viscoelastic polymer and/or a barium salt. The plaster mixture is combined with water and/or a viscoelastic polymer dispersion, to form a slurry. The slurry is applied to a surface and set to form a sound dampening layer.