Patents by Inventor Charaf Jama

Charaf Jama 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).

  • Polymer binder for intumescent coatings
    Patent number: 7417091
    Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: August 26, 2008
    Assignee: Eliokem SAS
    Inventors: Serge Magnet, Sophie Duquesne, René Delobel, Charaf Jama
  • Polymer binder for intumescent coatings
    Patent number: 7288588
    Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units. The present invention further reveals an intumescent coating which is comprised of a copolymer composition comprising a blend of a Newtonian copolymer, a reticulated copolymer, a film-forming substance, and a carbon forming substance, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: October 30, 2007
    Assignee: Eliokem S.A.S.
    Inventors: Serge Magnet, Sophie Duquesne, René Delobel, Charaf Jama
  • Polymer binder for intumescent coatings
    Publication number: 20070010624
    Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.
    Type: Application
    Filed: September 8, 2006
    Publication date: January 11, 2007
    Applicant: Eliokem S.A.S
    Inventors: Serge Magnet, Sophie Duquesne, Rene Delobel, Charaf Jama
  • Polymer binder for intumescent coatings
    Publication number: 20060264562
    Abstract: A copolymer for the use in or as polymeric binder in intumescent coatings, comprising a blend of a Newtonian copolymer and of a reticulated copolymer, said Newtonian and reticulated copolymers consisting of substituted styrene and substituted acrylate and comprising at least p-methylstyrene (PMS) and 2-ethylhexylacrylate (2EHA).
    Type: Application
    Filed: December 19, 2003
    Publication date: November 23, 2006
    Inventors: Sophie Duquesne, Rene Delobel, Charaf Jama
  • Polymer binder for intumescent coatings
    Publication number: 20060241196
    Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units. The present invention further reveals an intumescent coating which is comprised of a copolymer composition comprising a blend of a Newtonian copolymer, a reticulated copolymer, a film-forming substance, and a carbon forming substance, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.
    Type: Application
    Filed: June 23, 2006
    Publication date: October 26, 2006
    Applicant: Eliokem S.A.S
    Inventors: Serge Magnet, Sophie Duquesne, Rene Delobel, Charaf Jama
  • Polymer binder for intumescent coatings
    Patent number: 7105605
    Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: September 12, 2006
    Assignee: Eliokem S.A.S.
    Inventors: Serge Magnet, Sophie Duquesne, René Delobel, Charaf Jama
  • Polymer binder for intumescent coatings
    Publication number: 20040132910
    Abstract: The present invention discloses a copolymer composition for use in or as a polymeric binder in an intumescent coating, said copolymer composition comprising a blend of a Newtonian copolymer and of a reticulated copolymer, wherein the Newtonian copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units, and wherein the reticulated copolymer is comprised of p-methylstyrene repeat units and 2-ethylhexylacrylate repeat units.
    Type: Application
    Filed: December 19, 2003
    Publication date: July 8, 2004
    Inventors: Serge Magnet, Sophie Duquesne, Rene Delobel, Charaf Jama