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:
Mar. 31, 2015
Filed:
Oct. 26, 2009
Bonnie E. Baker, Warrington, PA (US);
Arnold S. Brownell, Lansdale, PA (US);
Nancy P. Buford, King of Prussia, PA (US);
Willie Lau, Lower Gwynedd, PA (US);
Joseph J. Spanier, Souderton, PA (US);
Bonnie E. Baker, Warrington, PA (US);
Arnold S. Brownell, Lansdale, PA (US);
Nancy P. Buford, King of Prussia, PA (US);
Willie Lau, Lower Gwynedd, PA (US);
Joseph J. Spanier, Souderton, PA (US);
Rohm and Haas Company, Philadelphia, PA (US);
Abstract
The present invention provides surface treated articles comprising a recoatable surface treatment of an acrylic or vinyl polymer that does not change the appearance of the treated surface, and which imparts blocking resistance and/or stain and dirt pickup resistance to the treated surface. The one or more acrylic or vinyl polymer has a number average molecular weight of from 1,000 to 100,000, a glass transition temperature of −10° C. or higher, preferably, 30° C. or higher, and comprises the polymerization product of one or more non-ionic monomer, such as methyl methacrylate, with up to 47 wt. % of an ethylenically unsaturated acid monomer and, preferably, is non-migrating under use conditions. When dry, the surface treatments may form a layer of domains of polymer distributed all over the treated surface, rather than a film. Treated articles include coating or painted articles and elastomer films.