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:
Dec. 02, 2008
Filed:
Aug. 05, 2005
John Joseph Rabasco, Allentown, PA (US);
Geoffrey James Dearth, Victorville, CA (US);
Charles Raymond Hegedus, Allentown, PA (US);
Frank Ralph Pepe, Quakertown, PA (US);
Bertil Vincent Mukkulainen, Fogelsville, PA (US);
John Joseph Rabasco, Allentown, PA (US);
Geoffrey James Dearth, Victorville, CA (US);
Charles Raymond Hegedus, Allentown, PA (US);
Frank Ralph Pepe, Quakertown, PA (US);
Bertil Vincent Mukkulainen, Fogelsville, PA (US);
Abstract
This invention relates to an improved process for providing water repellency and stain resistance to a masonry surface wherein an aqueous based water repellant polymeric coating is applied thereto and the water removed leaving a water repellent polymeric film adhered to the masonry surface. The improvement in the process resides in the use of an aqueous emulsion of a semi-crystalline ethylene-vinyl acetate polymer formed by emulsion polymerization wherein the polymer has: