US Patent 7511098 Hardenable compositions comprising polyacid(s) and polyol(s)
Patent 7511098 was granted and assigned to Valspar on March, 2009 by the United States Patent and Trademark Office.
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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.
US Patent 07511098 Hardenable compositions comprising polyacid(s) and polyol(s) US Patent 7511098 Hardenable compositions comprising polyacid(s) and polyol(s)
US Patent 07511098 Hardenable compositions comprising polyacid(s) and polyol(s)
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