Process for the preparation of highly esterified alkoxylated polyol compositions
AssigneesArco Chemical Technology, L.P., CPC International Inc.
InventorCharles F. Cooper
Life of this patent
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Abstract
A convenient method of obtaining useful highly esterified alkoxylated polyol fat substitutes from readily available triglycerides such as fats and oils is provided.
Claims23
A process for producing a highly esterified alkoxylated polyol composition comprising contacting an epoxide, an alkali metal or alkaline earth salt of an aliphatic polyalcohol, and a triglyceride for a time and at a temperature of from 50.degree. C. to 200.degree. C. to accomplish ring-opening of the epoxide and formation of fatty acid esterified oxyalkylene groups, wherein the molar ratio of epoxide:(triglyceride+aliphatic polyalcohol) is from 1:1 to 64:1 and the molar ratio of triglyceride:aliphatic polyalcohol is at least 9:3/m wherein m is the number of hydroxy groups in the aliphatic polyalcohol and is an integer of from 2 to 8.
A process for producing a highly esterified alkoxylated polyol composition comprising contacting a C.sub.2 -C.sub.10 aliphatic epoxide, an alkali metal salt of an aliphatic polyalcohol having 3 hydroxy groups, and a triglyceride at a temperature of from 50.degree. C. to 200.degree. C. for a time effective to accomplish ring-opening of the C.sub.2 -C.sub.10 aliphatic epoxide and formation of fatty acid-esterified oxyalkylene groups, wherein the molar ratio of C.sub.2 -C.sub.10 aliphatic epoxide:(triglyceride+aliphatic polyalcohol) is from 3:1 to 20:1 and the molar ratio of triglyceride:aliphatic polyalcohol is at least 19:1 and less than 200:1.
A process for producing a highly esterified alkoxylated polyol composition comprising contacting an epoxide selected from ethylene oxide, propylene oxide, 1,2-butylene oxide, or a mixture thereof, a potassium salt of an aliphatic polyalcohol selected from glycerin, monoglycerides, diglycerides, and alkoxylated glycerins having number average molecular weights of from 133 to 500, and a triglyceride at a temperature of from 80.degree. C. to 150.degree. C. for a time effective to accomplish ring-opening of the epoxide and formation of fatty acid-esterified oxyalkylene groups, wherein the molar ratio of epoxide:(triglyceride+aliphatic polyalcohol) is from 3:1 to 20:1, the molar ratio of triglyceride:aliphatic polyalcohol is at least 19:1 and less than 200:1, and the potassium is present at a concentration of from 1000 to 5000 parts per million based on the combined weight of epoxide, the potassium salt of the aliphatic polyalcohol, and the triglyceride.
Dependencies are inferred from the claim text.