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:
Jun. 10, 2014
Filed:
Nov. 18, 2010
Xia Cao, Acton, MA (US);
Robert A. Wiercinski, Lincoln, MA (US);
Neal S. Berke, Chelmsford, MA (US);
Antonio J. Aldykiewicz, Jr., Lexington, MA (US);
Jyoti Seth, Andover, MA (US);
Xia Cao, Acton, MA (US);
Robert A. Wiercinski, Lincoln, MA (US);
Neal S. Berke, Chelmsford, MA (US);
Antonio J. Aldykiewicz, Jr., Lexington, MA (US);
Jyoti Seth, Andover, MA (US);
W. R. Grace & Co.-Conn., Columbia, MD (US);
Abstract
Disclosed is a coating composition that includes an aqueous emulsion of a hydrophobic acrylic polymer, a water-soluble polymer, and an inorganic filler, and further includes a freezing-point lowering component to permit low temperature application. The freezing-point lowering component will preferably include a water-soluble, corrosion inhibiting salt. The coating composition will also optionally and preferably include an evaporation enhancing component to promote faster drying and skin formation at low temperatures. The coating composition may be coated onto a construction surface (e.g., by spraying) where, after drying, it will form a fully adhered barrier membrane that is water-vapor permeable, but air and liquid-water impermeable. Such membrane will preferably have sufficient coating thickness and sufficiently high elongation that it will bridge joints and cracks.