Patents by Inventor Duncan James Macquarrie

Duncan James Macquarrie 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).

  • Process for the production of dialkyl terephthalate
    Patent number: 11591283
    Abstract: A process for preparing dialkyl terephalate comprising the following steps:—i) providing furan-2,5-dicarboxylate; ii) esterifying the furan-2,5-dicarboxylate with alcohol to form furan-2,5-carboxylic acid dialkyl ester; iii) reacting the furan-2,5-carboxylic acid dialkyl ester with ethylene under Diels Alder conditions, elevated temperature and pressure and in the presence of a catalyst such that dialkyl terephthalate is produced; wherein the Diels-Alder reaction is free from solvent; wherein the catalyst comprises a clay comprising metal ions and having Lewis acidity.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: February 28, 2023
    Assignee: CONOPCO, INC.
    Inventors: Simon William Breeden, James Hanley Clark, Thomas James Farmer, Duncan James MacQuarrie, Con Robert McElroy, Joseph Kolawole Ogunjobi, David William Thornthwaite
  • PROCESS FOR THE PRODUCTION OF DIALKYL TEREPHTHALATE
    Publication number: 20210122698
    Abstract: A process for preparing dialkyl terephalate comprising the following steps:—i) providing furan-2,5-dicarboxylate; ii) esterifying the furan-2,5-dicarboxylate with alcohol to form furan-2,5-carboxylic acid dialkyl ester; iii) reacting the furan-2,5-carboxylic acid dialkyl ester with ethylene under Diels Alder conditions, elevated temperature and pressure and in the presence of a catalyst such that dialkyl terephthalate is produced; wherein the Diels-Alder reaction is free from solvent; wherein the catalyst comprises a clay comprising metal ions and having Lewis acidity.
    Type: Application
    Filed: March 28, 2019
    Publication date: April 29, 2021
    Inventors: Simon William BREEDEN, James Hanley CLARK, Thomas James FARMER, Duncan James MACQUARRIE, Con Robert MCELROY, Joseph Kolawole OGUNJOBI, David William THORNTHWAITE
  • Microwave torrefaction of biomass
    Patent number: 10072227
    Abstract: There is described a processor for use in the microwave torrefaction of biomass material which comprises, a micronized biomass char material and a method of producing a biomass char material, and a method of producing L-glucosan.
    Type: Grant
    Filed: July 3, 2009
    Date of Patent: September 11, 2018
    Assignee: University of York
    Inventors: Vitaliy Lvovich Budarin, Krzysztof Jakub Milkowski, Peter Shuttleworth, Brigid Lanigan, James Hanley Clark, Duncan James Macquarrie, Ashley Wilson
  • Polysaccharide derived materials
    Patent number: 9457338
    Abstract: A mesoporous material is derived from a polysaccharide by thermally assisted partial carbonisation after expansion. The polysaccharide is an acid containing polysaccharide or mixture of polysaccharides.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: October 4, 2016
    Assignee: THE UNIVERSITY OF YORK
    Inventors: Robin Jeremy White, James Hanley Clark, Vitaliy L'vovich Budarin, Duncan James MacQuarrie
  • POLYSACCHARIDE DERIVED MATERIALS
    Publication number: 20140288297
    Abstract: A mesoporous material is derived from a polysaccharide by thermally assisted partial carbonisation after expansion. The polysaccharide is an acid containing polysaccharide or mixture of polysaccharides.
    Type: Application
    Filed: December 23, 2013
    Publication date: September 25, 2014
    Applicant: THE UNIVERSITY OF YORK
    Inventors: Robin Jeremy White, James Hanley Clark, Vitaliy L'vovich Budarin, Duncan James MacQuarrie
  • Carbonaceous materials
    Patent number: 8790548
    Abstract: A carbonaceous material is derived from a polysaccharide by carbonization. The polysaccharide is preferably a starch. The carbonaceous material has mesoporosity and is useful as a solid catalytic support.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: July 29, 2014
    Assignee: University of York
    Inventors: Vitaliy Budarin, James Hanley Clark, Rafael Luque, Duncan James MacQuarrie, Krzysztof Milkowski, Robin Jeremy White
  • MICROWAVE TORREFACTION OF BIOMASS
    Publication number: 20110219679
    Abstract: There is described a processor for use in the microwave torrefaction of biomass material which comprises, a micronised biomass char material and a method of producing a biomass char material, and a method of producing L-glucosan.
    Type: Application
    Filed: June 3, 2009
    Publication date: September 15, 2011
    Applicant: UNIVERSITY OF YORK
    Inventors: Vitaliy Lvovich Budarin, Krzysztof Jakub Milkowski, Peter Shuttleworth, Brigid Lanigan, James Hanley Clark, Duncan James Macquarrie, Ashley Wilson
  • POLYSACCHARIDE DERIVED MATERIALS
    Publication number: 20110028708
    Abstract: A mesoporous material is derived from a polysaccharide by thermally assisted partial carbonisation after expansion. The polysaccharide is an acid containing polysaccharide or mixture of polysaccharides.
    Type: Application
    Filed: September 19, 2008
    Publication date: February 3, 2011
    Inventors: Robin Jeremy White, James Hanley Clark, Vitaliy L'Vovich Budarin, Duncan James MacQuarrie
  • CARBONACEOUS MATERIALS
    Publication number: 20090078913
    Abstract: A carbonaceous material is derived from a polysaccharide by carbonisation. The polysaccharide is preferably a starch. The carbonaceous material has mesoporosity and is useful as a solid catalytic support.
    Type: Application
    Filed: March 15, 2007
    Publication date: March 26, 2009
    Inventors: Rafael Luque, Duncan James Macquarrie, Vitaliy Budarin, James Hanley Clark, Krzyszlof Milkowski, Robin Jeremy White