Patents by Inventor Kamel Chougrani

Kamel Chougrani 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).

  • Publication number: 20230069954
    Abstract: The present invention relates to a cosmetic or pharmaceutical composition for topical application, said composition comprising the combination of a crosslinked oligo(ethylene glycol) based polymer in the form of an aqueous dispersion of microgel particles and a non-crosslinked water-soluble oligo(ethylene glycol) polymer. The invention also relates to a process for preparing this composition.
    Type: Application
    Filed: November 27, 2020
    Publication date: March 9, 2023
    Inventors: Eva DIEUZY, Laurent BILLON, Christophe DERAIL, Valérie ALARD, Kamel CHOUGRANI
  • Publication number: 20230076159
    Abstract: The present invention relates to a cosmetic or pharmaceutical composition for topical application, said composition comprising the combination of a crosslinked oligo(ethylene glycol) based polymer in the form of an aqueous dispersion of microgel particles and a non-crosslinked water-soluble oligo(ethylene glycol) polymer. The invention also relates to a process for preparing this composition.
    Type: Application
    Filed: November 27, 2020
    Publication date: March 9, 2023
    Inventors: Eva DIEUZY, Laurent BILLON, Christophe DERAIL, Valérie ALARD, Kamel CHOUGRANI
  • Patent number: 10822272
    Abstract: A copolymer includes a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups. The copolymer further includes gem-bisphosphonate groups. The copolymer can be included in an admixture for suspensions of mineral particles and in a composition of mineral particles. The copolymer can also be used for fluidifying and maintaining fluid, suspensions of mineral particles and for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 3, 2020
    Assignee: CHRYSO
    Inventors: Kamel Chougrani, Frédéric Leising
  • Publication number: 20180354851
    Abstract: A copolymer includes a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups. The copolymer further includes gem-bisphosphonate groups. The copolymer can be included in an admixture for suspensions of mineral particles and in a composition of mineral particles. The copolymer can also be used for fluidifying and maintaining fluid, suspensions of mineral particles and for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates.
    Type: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Inventors: Kamel CHOUGRANI, Frédéric LEISING
  • Patent number: 10081572
    Abstract: A copolymer includes a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups. The copolymer further includes gem-bisphosphonate groups. A composition, such as n admixture for suspensions of mineral particles, includes the copolymer. The copolymer can be used for fluidifying suspensions of mineral particles and maintaining the fluidity of such suspensions. The copolymer can also be used for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: September 25, 2018
    Assignee: CHRYSO
    Inventors: Kamel Chougrani, Frederic Leising
  • Patent number: 9371424
    Abstract: The invention relates to a copolymer comprising a main hydrocarbon chain and side groups including carboxylic groups, polyoxyalkylate groups, and gem acetophosphonate groups, an adjuvant for suspensions of mineral particles comprising said copolymer and a method for preparing said copolymer. Finally it also relates to the use of said copolymer for fluidifying and maintaining fluidity of suspensions of mineral particles and for reducing the sensitivity of hydraulic binders to clays and alkali metal sulfates. Finally it relates to a composition of mineral particles comprising this copolymer.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: June 21, 2016
    Assignee: CHRYSO
    Inventors: Kamel Chougrani, Frédéric Leising
  • Publication number: 20150175752
    Abstract: The invention relates to a copolymer comprising a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups, characterized in that it further includes gem acetophosphonate groups, an adjuvant for suspensions of mineral particles comprising said copolymer and a method for preparing said copolymer. Finally it also relates to the use of said copolymer for fluidifying and maintaining fluidity of suspensions of mineral particles and for reducing the sensitivity of hydraulic binders to clays and alkaline sulfates. Finally it relates to a composition of mineral particles comprising this copolymer.
    Type: Application
    Filed: September 26, 2013
    Publication date: June 25, 2015
    Applicant: CHRYSO
    Inventors: Kamel Chougrani, Frédéric Leising
  • Publication number: 20140039098
    Abstract: The invention relates to a copolymer comprising a main hydrocarbon chain and side groups including carboxylic groups and polyoxyalkylate groups, characterized in that it further includes gem-bisphosphonate groups, an admixture for suspensions of mineral particles comprising said copolymer and to a method for preparing said copolymer. Finally it relates to the use of said copolymer for fluidifying and maintaining fluid, suspensions of mineral particles and for reducing the sensitivity of hydraulic compositions to clays and alkaline sulfates. Finally it relates to a composition of mineral particles comprising this copolymer.
    Type: Application
    Filed: April 13, 2012
    Publication date: February 6, 2014
    Applicant: CHRYSO
    Inventors: Kamel Chougrani, Frédéric Leising
  • Publication number: 20130303663
    Abstract: The invention relates to a polymer comprising the following units: and the side chains comprising R2 groups, to its preparation methods and to its uses as a thinner in hydraulic compositions.
    Type: Application
    Filed: December 20, 2011
    Publication date: November 14, 2013
    Applicant: CHRYSO
    Inventors: Mathias Agnely, Pascal Boustingorry, Kamel Chougrani