Patents by Inventor Fanny DUBUT

Fanny DUBUT has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for producing (meth)acrylic esters
    Patent number: 10752573
    Abstract: This invention relates to a process for the continuous production of a (meth)acrylic ester by transesterification reaction between a C1-C4 light alkyl (meth)acrylate, with a heavy alcohol in the presence of a catalyst, characterised in that the flows feeding the reactor are introduced through a static mixer placed on a recirculation loop of the reactor. The use of a static mixer improves the selectivity of the reaction and consequently the overall productivity of (meth)acrylic ester synthesis process.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: August 25, 2020
    Assignee: Arkema France
    Inventors: Fanny Dubut, Marc Esch, Coralie Graire, Benoit Riflade
  • PROCESS FOR PRODUCING (METH)ACRYLIC ESTERS
    Publication number: 20200079722
    Abstract: This invention relates to a process for the continuous production of a (meth)acrylic ester by transesterification reaction between a C1-C4 light alkyl (meth)acrylate, with a heavy alcohol in the presence of a catalyst, characterised in that the flows feeding the reactor are introduced through a static mixer placed on a recirculation loop of the reactor. The use of a static mixer improves the selectivity of the reaction and consequently the overall productivity of (meth)acrylic ester synthesis process.
    Type: Application
    Filed: December 7, 2017
    Publication date: March 12, 2020
    Inventors: Fanny DUBUT, Marc ESCH, Coralie GRAIRE, Benoit RIFLADE
  • N,N-dimethylaminoethyl acrylate composition stabilized in respect of discoloring effects
    Patent number: 10479757
    Abstract: The invention relates to the use of 2,6,-di-tert-butyl-4-methylphenol at a moiety of 25 to 200 ppm for stabilizing N,N-dimethylaminoethyl acrylate in respect of discoloring effects. The invention also relates to an N,N-dimethylaminoethyl acrylate stabilized in said manner and to a method for producing the same.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: November 19, 2019
    Assignee: Arkema France
    Inventors: Fanny Dubut, Benoit Riflade, Sandra Maget
  • Reclamation of noble products in a method for producing (meth)acrylic ester
    Patent number: 10457630
    Abstract: The invention relates to a method for producing a (meth)acrylic ester with improved productivity, by transesterfication of a light alkyl (meth)acrylate with a heavy alcohol. The method of the invention includes the recycling of noble products recovered after the thermal treatment of heavy fractions generated during the synthesis, said thermal treatment being carried out in the presence of a dialkyl phthalate, the alkyl chain of which corresponds to that of the light alkyl (meth)acrylate. The invention applies to the production of N,N-dimethyaminoethyl acrylate from ethyl acrylate.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 29, 2019
    Assignee: Arkema France
    Inventors: Yves Cabon, Fanny Dubut, Benoit Riflade
  • N,N-DIMETHYLAMINOETHYL ACRYLATE COMPOSITION STABILIZED IN RESPECT OF DISCOLORING EFFECTS
    Publication number: 20190135731
    Abstract: The invention relates to the use of 2,6,-di-tert-butyl-4-methylphenol at a moiety of 25 to 200 ppm for stabilizing N,N-dimethylaminoethyl acrylate in respect of discoloring effects. The invention also relates to an N,N-dimethylaminoethyl acrylate stabilized in said manner and to a method for producing the same.
    Type: Application
    Filed: April 24, 2017
    Publication date: May 9, 2019
    Inventors: Fanny DUBUT, Benoit RIFLADE, Sandra MAGET
  • RECLAMATION OF NOBLE PRODUCTS IN A METHOD FOR PRODUCING (METH)ACRYLIC ESTER
    Publication number: 20180009736
    Abstract: The invention relates to a method for producing a (meth)acrylic ester with improved productivity, by transesterfication of a light alkyl (meth)acrylate with a heavy alcohol. The method of the invention includes the recycling of noble products recovered after the thermal treatment of heavy fractions generated during the synthesis, said thermal treatment being carried out in the presence of a dialkyl phthalate, the alkyl chain of which corresponds to that of the light alkyl (meth)acrylate. The invention applies to the production of N,N-dimethyaminoethyl acrylate from ethyl acrylate.
    Type: Application
    Filed: January 28, 2016
    Publication date: January 11, 2018
    Inventors: Yves CABON, Fanny DUBUT, Benoit RIFLADE