Patents by Inventor Christopher Tronche

Christopher Tronche 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).

  • Patent number: 8361908
    Abstract: The use of at least one diazonium salt bearing an initiator function, for forming an undercoat obtained by grafting a graft derived from the diazonium salt and bearing an initiator function at the surface of a conductive or semiconductive material on the undercoat, and for forming on the undercoat a polymeric layer obtained by polymerization, in particular free radical polymerization, in situ of at least one monomer, initiated from the initiator function.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: January 29, 2013
    Assignees: Universite Paris 7-Denis Diderot, Alchimedics
    Inventors: Mohamed Mehdi Chehimi, Jean Pinson, Bernadette Charleux, Christophe Bureau, Christopher Tronche, Tarik Matrab, Christian Perruchot, Eva Cabet-Deliry, Maud Save
  • Publication number: 20120015138
    Abstract: The use of at least one diazonium salt bearing an initiator function, for forming an undercoat obtained by grafting a graft derived from the diazonium salt and bearing an initiator function at the surface of a conductive or semiconductive material on the undercoat, and for forming on the undercoat a polymeric layer obtained by polymerization, in particular free radical polymerization, in situ of at least one monomer, initiated from the initiator function.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicants: ALCHIMEDICS, UNIVERSITE PARIS 7-DENIS DIDEROT
    Inventors: Mohamed Mehdi CHEHIMI, Jean Pinson, Bernadette Charleux, Christophe Bureau, Christopher Tronche, Tarik Matrab, Christian Perruchot, Eva Cabet-Deliry, Maud Save
  • Patent number: 8053567
    Abstract: The use of at least one diazonium salt bearing an initiator function, for forming an undercoat obtained by grafting a graft derived from the diazonium salt and bearing an initiator function at the surface of a conductive or semiconductive material on the undercoat, and for forming on the undercoat a polymeric layer obtained by polymerization, in particular free radical polymerization, in situ of at least one monomer, initiated from the initiator function.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: November 8, 2011
    Assignees: Universite Paris 7—Denis Diderot, Alchimedics
    Inventors: Mohamed Mehdi Chehimi, Jean Pinson, Bernadette Charleux, Christophe Bureau, Christopher Tronche, Tarik Matrab, Christian Perruchot, Eva Cabet-Deliry, Maud Save
  • Publication number: 20090029145
    Abstract: The invention relates to a new process for the preparation of nano-structured and/or nano-porous surfaces, coatings having a nano-structured and/or nano-porous surface and articles comprising said coatings. The invention also relates to the use of coatings according to the invention, in particular as anti-reflective coatings. The process for the preparation of the surface nano-structured and/or nano-porous coatings is a process comprising the steps of a) applying a mixture to a substrate which mixture comprises i) reactive nano-particles ii) at least one solvent iii) optionally a compound having at least one polymerisable group, in an amount that results in an increase in the transmission of at least 0.5%, for at least part of the electromagnetic spectrum between 400 and 800 nm, after the mixture has been applied and cured on a transparent substrate, in comparison with the same substrate without a coating b) inducing crosslinking and/or polymerisation in the mixture applied to the substrate.
    Type: Application
    Filed: July 30, 2008
    Publication date: January 29, 2009
    Applicant: DSM IP Assets B.V.
    Inventors: Jens Christoph THIES, Guido Josefina Wilhelmus Meijers, Atze Jan Nijenhuis, Edwin Currie, Christopher Tronche, John Southwell
  • Publication number: 20080064783
    Abstract: The invention concerns the use of at least one diazonium salt bearing an initiator function, for forming an undercoat obtained by grafting a graft derived from said diazonium salt and bearing an initiator function at the surface of a conductive or semiconductive material on said undercoat, and for forming on said undercoat a polymeric layer obtained by polymerization, in particular free radical polymerization, in situ of at least one monomer, initiated from said initiator function.
    Type: Application
    Filed: June 2, 2005
    Publication date: March 13, 2008
    Inventors: Mohamed Chehimi, Jean Pinson, Bernadette Charleux, Christophe Bureau, Christopher Tronche, Tarik Matrab, Christian Perruchot, Eva Cabet-Deliry, Maud Save
  • Publication number: 20070066703
    Abstract: The present invention relates to a radiation-curable resin composition which produces a cured film having low surface resistivity and high transparency, a cured film of the composition, and a laminate including a layer of the cured film. The laminate of the present invention is suitably used as a hard coat material for preventing scratches or stains on a plastic optical part, touch panel, film-type liquid crystal element, plastic container, or flooring material, wall material, or artificial marble as an architectural interior finish; adhesive and sealing material for various substrates; vehicle for printing ink; or the like.
    Type: Application
    Filed: July 23, 2004
    Publication date: March 22, 2007
    Inventors: Noriyasu Shinohara, Hiroyuki Mano, Takayoshi Tanabe, John Southwell, Christopher Tronche
  • Publication number: 20060275595
    Abstract: The invention relates to a new process for the preparation of nano-structured and/or nano-porous surfaces, coatings having a nano-structured and/or nano-porous surface and articles comprising said coatings. The invention also relates to the use of coatings according to the invention, in particular as anti-reflective coatings. The process for the preparation of the surface nano-structured and/or nano-porous coatings is a process comprising the steps of: a) applying a mixture to a substrate which mixture comprises: i) reactive nano-particles; ii) at least one solvent; iii) optionally a compound having at least one polymerisable group, in an amount that results in an increase in the transmission of at least 0.5%, for at least part of the electromagnetic spectrum between 400 and 800 nm, after the mixture has been applied and cured on a transparent substrate, in comparison with the same substrate without a coating; b) inducing crosslinking and/or polymerisation in the mixture applied to the substrate.
    Type: Application
    Filed: May 13, 2004
    Publication date: December 7, 2006
    Inventors: Jens Christoph Thies, Guido Meijers, Atze Nijenhuis, Edwin Currie, Christopher Tronche, John Southwell
  • Publication number: 20060093779
    Abstract: Optical disc adhesives and lacquers comprising components that undergo free-radical polymerization when exposed to radiation and a cure-enhancing amount of R—SH, wherein R is a heterocycle; cationic, free-radical, and hybrid adhesives for digital versatile discs (DVD) comprising components that undergo cationic and/or free-radical polymerization when exposed to radiation and a corrosion-inhibiting amount of R—SH, R1-R2 and/or an acyclic thiol, wherein R is a heterocycle, R1 is a substituted or unsubstituted phenyl as a substituent of R2 or forming with R2 a bicyclic structure, and R2 is a heterocycle comprising at least one double bond and at least two N atoms; and optical media, e.g., CD-DA, CD-ROM, CD-R, DVD, and the like, that include one, or a combination, of the foregoing inventive adhesive or lacquer compositions.
    Type: Application
    Filed: December 14, 2005
    Publication date: May 4, 2006
    Applicant: DSM N.V.
    Inventors: Chander Chawla, Michael Sullivan, Vadim Krongauz, Christopher Tronche
  • Patent number: 6951910
    Abstract: The present invention provides radiation-curable compositions for coating plastic substrates, wherein the compositions, after cure, have a combination of sufficient adhesion, flexibility, and hardness. The compositions include: (a) at least one component comprised of a metal oxide bonded to an organic compound, said organic compound having (i) a radiation curable group; and (ii) a group represented by the following formula (1): ?wherein X represents an amine (NH), oxygen (O), or sulfur (S) radical; and Y represents an oxygen (O), or sulfur (S) radical; (b) a poly(meth)acrylate compound; and (c) an adhesion promoter.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: October 4, 2005
    Assignee: DSM IP Assets B.V.
    Inventors: Chander P. Chawla, Christopher Tronche
  • Publication number: 20050065303
    Abstract: The present invention provides radiation-curable compositions for coating plastic substrates, wherein the compositions, after cure, have a combination of sufficient adhesion, flexibility, and hardness. The compositions include: (a) at least one component comprised of a metal oxide bonded to an organic compound, said organic compound having (i) a radiation curable group; and (ii) a group represented by the following formula (1) wherein X represents an amine (NH), oxygen (O), or sulfur (S) radical; and Y represents an oxygen (O), or sulfur (S) radical; (b) a poly(meth)acrylate compound; and (c) an adhesion promoter.
    Type: Application
    Filed: November 3, 2004
    Publication date: March 24, 2005
    Inventors: Chander Chawla, Christopher Tronche
  • Patent number: 6646080
    Abstract: The present invention provides radiation-curable compositions for coating plastic substrates, wherein the compositions, after cure, have a combination of sufficient adhesion, flexibility, and hardness. The compositions include: (a) metal oxide particles; and (b) a poly(meth)acrylate compound.
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: November 11, 2003
    Assignee: DSM N.V.
    Inventors: Chandler P. Chawla, Christopher Tronche
  • Publication number: 20030096928
    Abstract: The present invention provides radiation-curable compositions for coating plastic substrates, wherein the compositions, after cure, have a combination of sufficient adhesion, flexibility, and hardness.
    Type: Application
    Filed: July 3, 2002
    Publication date: May 22, 2003
    Inventors: Chandler P. Chawla, Christopher Tronche
  • Publication number: 20020082323
    Abstract: The present invention provides radiation-curable compositions for coating plastic substrates, wherein the compositions, after cure, have a combination of sufficient adhesion, flexibility, and hardness.
    Type: Application
    Filed: September 14, 2001
    Publication date: June 27, 2002
    Inventors: Chander P. Chawla, Christopher Tronche