Patents by Inventor CHRISTOPHE DARCEL

CHRISTOPHE DARCEL 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).

  • USE OF HYDROPEROXY ALCOHOLS AND THE DERIVATIVES THEREOF AS ANTIMICROBIAL AGENTS
    Publication number: 20230181520
    Abstract: The invention relates to the use of a hydroperoxy alcohol-type compound, or a 1,2,4-trioxane compound thereof, as an antimicrobial agent, making it possible for it to be used in various applications and in particular as a preservative and/or to improve the antimicrobial properties of at least one preservative, to modulate the skin microbiota, in the treatment or prevention of diseases affecting the skin, the mucous membrane and/or skin appendages or even to cleanse, sanitise, disinfect and/or sterilise a surface other than the skin, skin appendages and mucous membranes, in particular a hard surface or a textile. It also relates to a composition comprising such a compound. In addition to its antimicrobial properties, the aforementioned compound has good safety and emollient properties, making it particularly suitable for cosmetic use.
    Type: Application
    Filed: November 27, 2020
    Publication date: June 15, 2023
    Inventors: FRÉDÉRIC CAIJO, CHRISTOPHE DARCEL, VINCENT ESCANDE
  • PROCESS FOR THE PREPARATION OF HYDROPEROXY ALCOHOLS USING A HETEROGENOUS CATALYST
    Publication number: 20230068095
    Abstract: The present invention relates to a process for preparing hydroperoxy alcohols using hydrogen peroxide as an oxidant in a solvent selected from water-soluble carboxylic acids, in the presence of a metallic mixed oxide heterogeneous catalyst. It also pertains to the use of this catalyst in the synthesis of hydroperoxy alcohols.
    Type: Application
    Filed: December 11, 2020
    Publication date: March 2, 2023
    Inventors: IULIANA MARIA COTA, FRÉDÉRIC CAIJO, CHRISTOPHE DARCEL, VINCENT ESCANDE
  • Process for perhydrolysis of aliphatic epoxides
    Patent number: 11512050
    Abstract: The present invention relates to a process for synthesizing hydroperoxy alcohols by perhydrolysis of epoxides, using an aqueous solution of hydrogen peroxide, in the presence of a catalyst consisting of phosphotungstic acid.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: November 29, 2022
    Assignees: DEMETA, UNIVERSITE DE RENNES 1
    Inventors: Corentin Bordier, Vincent Escande, Frédéric Caijo, Christophe Darcel
  • METHOD FOR OXIDATIVE CLEAVAGE OF OLEFINS USING A HALOOXODIPEROXOMETALLATE AS A CATALYST
    Publication number: 20220315517
    Abstract: The present invention relates to a method for oxidative cleavage of a substrate consisting of at least one functionalised or non-functionalised linear olefin, in particular a mono- or polyunsaturated aliphatic carboxylic acid, or one of the esters thereof, or at least one non-functionalised cyclic olefin, using hydrogen peroxide, in the presence of a metal catalyst which consists of at least one onium halooxodiperoxometallate. It also relates to a novel catalyst consisting of a specific onium halooxodiperoxometallate which can be used, in particular, in said method.
    Type: Application
    Filed: September 14, 2020
    Publication date: October 6, 2022
    Inventors: CORENTIN BORDIER, VINCENT ESCANDE, CHRISTOPHE DARCEL, FRÉDÉRIC CAIJO
  • PROCESS FOR PERHYDROLYSIS OF ALIPHATIC EPOXIDES
    Publication number: 20220169601
    Abstract: The present invention relates to a process for synthesizing hydroperoxy alcohols by perhydrolysis of epoxides, using an aqueous solution of hydrogen peroxide, in the presence of a catalyst consisting of phosphotungstic acid.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 2, 2022
    Inventors: CORENTIN BORDIER, VINCENT ESCANDE, FRÉDÉRIC CAIJO, CHRISTOPHE DARCEL