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, 2009
Filed:
Jul. 11, 2001
Jeffrey Niederst, Pittsburgh, PA (US);
John H. Mazza, Cheswick, PA (US);
Mike A. Lucarelli, McMurray, PA (US);
William H. Mccarty, Lancaster, VA (US);
Thomas R. Mallen, Zelienople, PA (US);
Jeffrey Niederst, Pittsburgh, PA (US);
John H. Mazza, Cheswick, PA (US);
Mike A. Lucarelli, McMurray, PA (US);
William H. McCarty, Lancaster, VA (US);
Thomas R. Mallen, Zelienople, PA (US);
Valspar Sourcing, Inc., Minneapolis, MN (US);
Abstract
The present invention provides hardenable coating compositions, comprising: a first compound selected from the group consisting of polyacids, polyanhydrides, salts thereof and mixtures thereof, and a second compound having two or more active hydrogen groups. When used as a roll coating composition, the first compound preferably has a low average molecular weight and an acid number greater than about 100. The hardenable coating composition preferably has an extended open time and can be rapidly cured to a substantially tack-free state in less than about one minute at 200° C. Coated articles and methods of coating are also provided.