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Pre-esterification of primary polyols to improve solubility in solvents used in the polyol process

  • US 8,877,952 B2
  • Filed: 12/31/2009
  • Issued: 11/04/2014
  • Est. Priority Date: 04/26/2005
  • Status: Active Grant
First Claim
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1. A method for producing an ester comprising:

  • A. pre-esterifying a primary polyol with a fatty acid, a fatty acid ester, a fatty acid anhydride, or a fatty acid chloride to form a partially acylated polyol;

    B. reacting the pre-esterified primary polyol with ozone, and optionally a biobased oil, oil derivative, or modified oil, in the presence of a solvent at a temperature between about −

    80°

    C. to about 80°

    C. to produce intermediate products; and

    C. refluxing the intermediate products or further reacting at lower than reflux temperature, wherein esters are produced from the intermediate products at double bond sites.

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