Patents by Inventor Charles Romain

Charles Romain 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).

  • Method and catalyst system for preparing polymers and block copolymers
    Patent number: 10696797
    Abstract: The present invention provides methods for producing block copolymers, either by the sequential addition of monomers, or using a “one-pot” method. The invention also relates to novel methods for producing polyesters by ring opening lactides and/or lactones and by copolymerising anhydrides and epoxides.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: June 30, 2020
    Assignee: IP2IPO Innovations Limited
    Inventors: Charlotte Katherine Williams, Charles Romain, Michael Kember
  • METHOD AND CATALYST SYSTEM FOR PREPARING POLYMERS AND BLOCK COPOLYMERS
    Publication number: 20180305501
    Abstract: The present invention provides methods for producing block copolymers, either by the sequential addition of monomers, or using a “one-pot” method. The invention also relates to novel methods for producing polyesters by ring opening lactides and/or lactones and by copolymerising anhydrides and epoxides.
    Type: Application
    Filed: June 26, 2018
    Publication date: October 25, 2018
    Applicant: Imperial Innovations Limited
    Inventors: Charlotte Katherine Williams, Charles Romain, Michael Kember
  • Method and catalyst system for preparing polymers and block copolymers
    Patent number: 10030106
    Abstract: The present invention provides methods for producing block copolymers, either by the sequential addition of monomers, or using a “one-pot” method. The invention also relates to novel methods for producing polyesters by ring opening lactides and/or lactones and by copolymerizing anhydrides and epoxides.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: July 24, 2018
    Assignee: Imperial Innovations Limited
    Inventors: Charlotte Katherine Williams, Charles Romain, Michael Kember
  • CATALYST
    Publication number: 20160347906
    Abstract: The present invention provides novel catalysts of formula (I), where M1 and M2 are different and are independently selected from Mg, Zn, Fe, Co, Al and Cr, and catalyst systems comprising these catalysts. The invention also relates to the use of the inventive catalysts and catalyst systems to catalyse the reaction between i) carbon dioxide and an epoxide, ii) an epoxide and an anhydride, or iii) a lactide and/or a lactone. The invention also relates to a method for producing a catalyst of formula (I).
    Type: Application
    Filed: February 6, 2015
    Publication date: December 1, 2016
    Applicant: Imperial Innovations Limited
    Inventors: Charlotte Williams, Prabhjot Saini, Charles Romain, Jennifer Garden
  • METHOD AND CATALYST SYSTEM FOR PREPARING POLYMERS AND BLOCK COPOLYMERS
    Publication number: 20160108181
    Abstract: The present invention provides methods for producing block copolymers, either by the sequential addition of monomers, or using a “one-pot” method. The invention also relates to novel methods for producing polyesters by ring opening lactides and/or lactones and by copolymerising anhydrides and epoxides.
    Type: Application
    Filed: May 16, 2014
    Publication date: April 21, 2016
    Applicant: Imperial Innovations Limited
    Inventors: Charlotte Katherine Williams, Charles Romain, Michael Kember
  • N-Heterocyclic Carbene Based Zirconium Complexes For Use In Lactones Ring Opening Polymerization
    Publication number: 20130281653
    Abstract: This invention is reporting new N-heterocyclic carbene based zirconium (or hafnium) complexes and their uses as catalysts for the lactones ring opening polymerization. These new catalysts are robust and versatile and exert control over polymer molecular weight and/or stereochemistry and exhibit high reactivity (cf. for low temperature applications). In particular the new catalysts show both enhanced activity and at the same time a better selectivity than the catalysts employed by the prior art.
    Type: Application
    Filed: December 5, 2011
    Publication date: October 24, 2013
    Applicant: CLARIANT FINANCE (BVI) LIMITED
    Inventors: Pascal Steffanut, Charles Romain, Samuel Dagorne, Stephane Bellemin-Laponnaz
  • Earphone
    Patent number: D889439
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: July 7, 2020
    Assignee: 1MORE INC.
    Inventors: Kuan-Hong Hsieh, Shichen Xu, Charles Romain Journeaux Maxime