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:
Jan. 13, 2015
Filed:
Apr. 06, 2011
Robert A. Wiercinski, Lincoln, MA (US);
Xia Cao, Acton, MA (US);
Robert Paul, Maynard, MA (US);
Anandakumar Ranganathan, Lexington, MA (US);
Robert A. Wiercinski, Lincoln, MA (US);
Xia Cao, Acton, MA (US);
Robert Paul, Maynard, MA (US);
Anandakumar Ranganathan, Lexington, MA (US);
W. R. Grace & Co.-Conn., Columbia, MD (US);
Abstract
Disclosed is a waterproofing membrane that comprises a carrier sheet, a pressure sensitive adhesive layer on one surface of the carrier sheet, and a protective coating layer on the adhesive layer. The protective coating layer is highly reflective (optionally textured) and operative to bond to concrete cast against it. Preferably, the protective coating layer comprises cement, polymer, and white pigment, and may optionally or additionally include a filler, a UV absorber and an antioxidant. The protective coating layer protects the membrane against weather exposure, tolerates foot traffic and strongly adheres to concrete cast against it. Also disclosed is a waterproofing membrane comprising a carrier sheet, a pressure sensitive adhesive layer, a protective coating layer (as described above), and a highly releasable bonding layer.