Method for preparing essentially haze-free isophthalic acid- and polymethylolalkanoic acid-containing resins
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United States of America Patent
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Dec 18, 1990
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Dec 15, 1989
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Jan 29, 1988
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Abstract
A method of producing essentially haze-free isophthalic acid and polymethylolalkanoic acid-containing resins comprising reacting isophthalic acid, a polymethylolalkanoic acid, and a polyol in the presence of a catalytically effective amount of a catalyst selected from the group consisting of stannous oxalate, dibutyltin oxide, and tetrabutyl titanate at a temperature of between about 150.degree. C. and 230.degree. C. to produce haze-free resin.
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