Rigid polyurethane foams from diethanolamides of carboxylated oils and fatty acids |
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Authors: | T H Khoe E N Frankel |
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Affiliation: | (1) Northern Regional Research Laboratory, ARS, USDA, 61604 Peoria, Illinois |
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Abstract: | New polyols of high hydroxyl content and reactivity were made from linseed and soybean oils and acids by catalytic carboxylation
followed by reaction with diethanolamine. Urethane foams made with these diethanolamides were stronger than those made with
castor oil at equivalent polyol wt. Because of their higher hydroxyl content, a larger amount of diethanolamides could be
incorporated in foam formulations than is possible with castor oil. The rigid urethane foams prepared with the new polyols
meet the requirements of commercial products with respect to density, compressive strength, and dimensional stability.
National Flaxseed Processors Association Fellow, 1969–1973. Present address: Avery Products, Technical Center, 325 North Altadena
Dr., Pasadena, CA 91107. |
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