Patents Assigned to ECOSYNTH BVBA
  • Patent number: 8865931
    Abstract: This invention is directed to a process for the production of a variety of esters, particularly acrylate and methacrylate-based esters, by a transesterification reaction. This objective is achieved by reaction of an ester of a carboxylic or a carbonic acid, in particular of a saturated or unsaturated, typically, a 3 to 4 carbon atom carboxylic acid; with an alcohol in the presence of a catalyst comprising the combination of a metal 1,3-dicarbonyl complex (pref. Zn or Fe acetylacetonate) and a salt, in particular an inorganic salt, pref. ZnCl2, LiCI, NaCI, NH4CI or Lil. These catalysts are prepared from readily available starting materials within the reaction medium without the need for isolation (in-situ preparation).
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: October 21, 2014
    Assignee: Ecosynth bvba
    Inventors: Thomas Peter Anne Goossens, Freek Annie Camiel Vrielynck, Noel Gabriel Cornelius Hosten, Koen Jeanne Alfons Van Aken
  • Publication number: 20130090492
    Abstract: This invention is directed to a general catalyst of high activity and selectivity for the production of a variety of esters, particularly acrylate and methacrylate-based esters, by a transesterification reaction. This objective is achieved by reaction of an ester of a carboxylic or a carbonic acid, in particular of a saturated or unsaturated, typically, a 3 to 4 carbon atom carboxylic acid; with an alcohol in the presence of a catalyst comprising the combination of a metal 1,3-dicarbonyl complex (pref. Zn or Fe acetylacetonate) and a salt, in particular an inorganic salt, pref. ZnCl2, LiCI, NaCI, NH4CI or Lil. These catalysts are prepared from readily available starting materials within the reaction medium without the need for isolation (in-situ preparation).
    Type: Application
    Filed: June 10, 2011
    Publication date: April 11, 2013
    Applicant: ECOSYNTH BVBA
    Inventors: Thomas Peter Anne Goossens, Freek Annie Camiel Vrielynck, Noel Gabriel Cornelius Hosten, Koen Jeanne Alfons Van Aken