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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.:

US 9476196 B1

PDFFull Text
Date of Patent:
Oct. 25, 2016

Filed:

Oct. 25, 2012

Waterproofing membrane

Applicant:

W. R. Grace & Co.-conn., Columbia, MD (US);

Inventors:

Robert A. Wiercinski, Lincoln, MA (US);

Anandakumar Ranganathan, Lexington, MA (US);

Xia Cao, Acton, MA (US);

Robert Paul, Maynard, MA (US);

Assignee:

GCP Applied Technologies Inc., Cambridge, MA (US);

Attorney:

Craig K. Leon

Primary Examiner:

Joshua J Michener

Assistant Examiner:

Keith Minter

Int. Cl.
CPC ...
E04B 1/66 (2006.01); C09J 7/02 (2006.01); E04B 1/76 (2006.01); E04G 21/00 (2006.01); C09D 131/04 (2006.01); C09D 133/08 (2006.01); C09J 133/08 (2006.01); C09J 135/06 (2006.01); B32B 37/24 (2006.01); B32B 38/10 (2006.01); E04B 1/64 (2006.01); E04C 2/24 (2006.01); B32B 5/02 (2006.01); B32B 11/04 (2006.01); B32B 11/10 (2006.01); B32B 27/08 (2006.01); B32B 27/12 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01);
U.S. Cl.
CPC ...
E04B 1/665 (2013.01); B32B 5/022 (2013.01); B32B 5/024 (2013.01); B32B 11/046 (2013.01); B32B 11/10 (2013.01); B32B 27/08 (2013.01); B32B 27/12 (2013.01); B32B 27/302 (2013.01); B32B 27/304 (2013.01); B32B 27/322 (2013.01); B32B 37/24 (2013.01); B32B 38/10 (2013.01); C09D 131/04 (2013.01); C09D 133/08 (2013.01); C09J 7/0228 (2013.01); C09J 133/08 (2013.01); C09J 135/06 (2013.01); E04B 1/64 (2013.01); E04C 2/24 (2013.01); B32B 2037/243 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2307/728 (2013.01); B32B 2419/00 (2013.01); C08L 2201/52 (2013.01); Y10T 428/24942 (2015.01); Y10T 428/24967 (2015.01); Y10T 428/259 (2015.01); Y10T 428/31667 (2015.04);
Abstract

Disclosed is a waterproofing membrane that comprises a carrier sheet (layer A); a waterproofing adhesive (layer B); a protective coating (layer C), wherein the protective coating is substantially free of surfactant and comprises an acrylic or methacrylic polymer or copolymer, an inorganic filler and a white pigment; and a releasable material (layer D), wherein the releasable material comprises amorphous nanoscale silica and a polymeric binder. The waterproofing membrane does not require a release liner, binds strongly to concrete cast against it (even after UV exposure), tolerates foot traffic, and withstands immersion in water over an extended period.

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