Esterification Or Molecular Rearrangement (e.g., Intra- Or Inter-esterification, Etc.) Patents (Class 554/30)
  • Patent number: 5508457
    Abstract: The invention is directed to a process for the transesterification of carboxylic acid esters, in which process a catalyst is used which is substantially insoluble in the reaction mixture under reaction conditions, said catalyst comprising at least one silicate of the Group IVB elements of the Periodic Table as the active component.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: April 16, 1996
    Assignees: Engelhard De Meern B.V., Fina Research S.A.
    Inventors: Cornelis R. Bayense, Herve Hinnekens, Julien Martens
  • Patent number: 5506294
    Abstract: A non-volatile compound useful as a solvent and a method of manufacturing the compound. The compound is formed from heating a combination of a lactide and a drying oil which has conjugated double bonds. The compound is particularly useful as a resin solvent for use with coatings, paints and printing inks. In addition, it can be used as a compatibilizing agent.
    Type: Grant
    Filed: February 24, 1995
    Date of Patent: April 9, 1996
    Inventor: David Westerhoff
  • Patent number: 5405935
    Abstract: A non-volatile compound useful as a solvent and a method of manufacturing the compound. The compound is formed from heating a combination of a lactide and a drying oil which has conjugated double bonds. The compound is particularly useful as a resin solvent for use with coatings, paints and printing inks. In addition, it can be used as a compatibilizing agent.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: April 11, 1995
    Inventor: David Westerhoff
  • Patent number: 5324846
    Abstract: The present invention relates to a partial ester derived from the reaction product of an oxirane containing acid or derivative thereof, and a reactive hydroxyl compound selected from the group consisting of diols, triols, di-diols and 1,4-dihydroxy butane and a halogen containing polymer compositon thereof. The oxirane compound can be derived from the group consisting of epoxidized vegetable oil, epoxidized fish oil, an aliphatic or arylaliphatic containing craboxyl compound having an oxirane group in the aliphatic chain.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: June 28, 1994
    Assignee: Elf Atochem North America, Inc.
    Inventors: Justin L. Hirshman, Dana S. Garcia, Mohammad R. Kazemizadeh
  • Patent number: 5225580
    Abstract: A two-stage separation process for separating highly unsaturated triglycerides from an interesterification reaction product by sequential chromatographic separations wherein triglycerides are separated from saturated fatty acids in the first stage and unsaturated fatty acids are recovered in the second stage for recycle to the interesterification reaction zone. In a preferred embodiment using silica gel and silicalite in the two stages, respectively, and heptanone as desorbent in both stages, triglyceride product is removed as the first stage raffinate and the unsaturated fatty acid recycle product stream is removed as the raffinate in the second stage. In another embodiment, using silicalite adsorbent in both stages and 2-heptanone and acetone in the first and second stages, respectively, saturated fatty acids are removed as the extract in the first stage and triglycerides and unsaturated fatty acids are separated as raffinate product and extract product for recycle, respectively.
    Type: Grant
    Filed: August 16, 1990
    Date of Patent: July 6, 1993
    Assignee: UOP
    Inventor: Hermann A. Zinnen