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For the Inventor, By the Inventor

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 9701590 B1

PDFFull Text
Date of Patent:
Jul. 11, 2017

Filed:

Sep. 19, 2012

Water repellent for concrete

Applicant:

Dow Corning Corporation, Midland, MI (US);

Inventors:

Lok Ming Li, Midland, MI (US);

Yihan Liu, Midland, MI (US);

Timothy Roggow, Saginaw, MI (US);

Marie-Jose Sarrazin, Brussels, BE;

David Selley, Bay City, MI (US);

Andreas Stammer, Pont-a-celles, BE;

Paul Vandort, Sanford, MI (US);

Assignee:

DOW CORNING CORPORATION, Midland, MI (US);

Attorney:

Warner Norcross & Judd LLP

Primary Examiner:

Kuo-Liang Peng

Int. Cl.
CPC ...
C04B 41/49 (2006.01); C04B 24/42 (2006.01); C04B 41/00 (2006.01); C04B 41/64 (2006.01); C04B 28/02 (2006.01); C04B 28/14 (2006.01); C08G 77/38 (2006.01); C08L 83/04 (2006.01); C04B 111/00 (2006.01); C04B 111/27 (2006.01); C08G 77/16 (2006.01);
U.S. Cl.
CPC ...
C04B 41/4961 (2013.01); C04B 24/42 (2013.01); C04B 28/02 (2013.01); C04B 28/14 (2013.01); C04B 41/009 (2013.01); C04B 41/64 (2013.01); C08G 77/38 (2013.01); C08L 83/04 (2013.01); C04B 2111/0062 (2013.01); C04B 2111/27 (2013.01); C08G 77/16 (2013.01); Y02W 30/97 (2015.05);
Abstract

The invention provides a water repellent composition for treating porous substrates comprising an emulsion which includes water, at least one surfactant, and a siloxane copolymer having the formula (I) wherein R is an alkyl radical having 1 to 3 carbon atoms; a has a value of from 1 to 12; R' is an alkyl radical having 8 to 12 carbon atoms, b≧2; (a+b) is at least 5. This composition shows a good depth of penetration of porous substrates especially reinforced concrete and has a low Volatile Organic Content to ASTM D 5095.

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