Patents Represented by Attorney T. M. Rosnell

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  • Process for preparing polyol polyesters having low levels of triglycerides
    Patent number: 5491226
    Abstract: A process for preparing polyol fatty acid polyesters having levels of triglyceride below 0.5% is described. Methyl esters having a level of monoglycerides below 500 ppm, a nondetectable level of di- and triglyceride and a glycerine level of less than about 200 ppm are prepared and then used in a two-stage, solvent-free transesterification reaction to prepare the polyol fatty acid polyesters.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: February 13, 1996
    Assignee: Procter & Gamble Company
    Inventor: Corey J. Kenneally
  • Polyol polyester purification
    Patent number: 5318790
    Abstract: Polyol polyesters are purified by a process comprising bleaching with a specific silica gel and/or heat treatment and removal of volatile products by steam deodorization. Any steam deodorization is at reduced temperatures or in admixture with triglycerides to minimize thermal degradation of the polyol polyesters.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: June 7, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Robert Houston, Robert J. Sarama, Paul Seiden, Keith D. Adams, Gregory M. McCabe