Patent
Method for producing citrates by esterification in the presence of organic titanates (US Patent 5055609)
Morflex, Inc. · Granted Oct 8, 1991 · Filed Apr 6, 1990
Patent number: 5055609 Granted: 1991-10-08 Filed: 1990-04-06 Inventors: Ezekiel H. Hull (Greensboro, NC, US); Edward P. Frappier (Kernersville, NC, US) Assignees: Morflex, Inc. (Greensboro, NC, US)
Abstract
Citrate esters are formed utilizing organic titanates as a catalyst allowing excess alcohol to be removed. Four citrate esters have been found which provide advantageous plasticizing properties to PVC compositions which include superior toxicity test results and superior soapy
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