Patents Assigned to GreenCentre Canada
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Patent number: 10377647Abstract: Methods and systems for use of switchable water, which is capable of reversibly switching between an initial ionic strength and an increased ionic strength, is described. The disclosed methods and systems can be used, for example, in distillation-free removal of water from solvents, solutes, or solutions, desalination, clay settling, viscosity switching, etc. Switching from lower to higher ionic strength is readily achieved using low energy methods such as bubbling with C02, CS2 or COS or treatment with Bronsted acids. Switching from higher to lower ionic strength is readily achieved using low energy methods such as bubbling with air, inert gas, heating, agitating, introducing a vacuum or partial vacuum, or any combination or thereof.Type: GrantFiled: December 15, 2011Date of Patent: August 13, 2019Assignees: Queen's University at Kingson, Greencentre CanadaInventors: Philip G. Jessop, Sean M. Mercer, Tobias Robert, R. Stephen Brown, Timothy James Clark, Brian Ernest Mariampillai, Rui Resendes, Dominik Wechsler
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Publication number: 20180142117Abstract: The present application provides switchable, homogeneous paint composition and methods of painting and/or forming films or coatings using the composition. The composition includes a liquid having an aqueous solution and dissolved acid gas (e.g., carbonated water), and a switchable polymer. The switchable polymer converts from a protonated, water-soluble form in the liquid to a water-insoluble unprotonated form following removal or substantial removal of the liquid and acid gas.Type: ApplicationFiled: June 6, 2016Publication date: May 24, 2018Applicants: GREENCENTRE CANADA, QUEEN'S UNIVERSITY AT KINGSTONInventors: Rui RESENDES, Philip G. JESSOP, Michael F. CUNNINGHAM, Bhanu Prakash MUDRABOYINA, Adam Michael OZVALD, Timothy James CLARK, Brian MARIAMPILLAI, Yun YANG, Amy Marie HOLLAND, Charles Howard HONEYMAN
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Patent number: 9453036Abstract: The present application provides precursor compounds useful for deposition of a group 11 metal on a substrate, for example, a microelectronic device substrate, as well as methods of synthesizing such precursor compounds. The precursor compounds provided are mono-metallic compounds comprising a diaminocarbene (DAC) having the general formula: “DAC-M-X”, where the diaminocarbene is an optionally substituted, saturated N-heterocyclic diaminocarbene (sNHC) or an optionally substituted acyclic diaminocarbene, M is a group 11 metal, such as copper, silver or gold; and X is an anionic ligand. Also provided are methods of synthesizing the precursor compounds, metal deposition methods utilizing such precursor compounds, and to composite materials, such as, e.g., microelectronic device structures, and products formed by use of such precursors and deposition methods.Type: GrantFiled: May 10, 2012Date of Patent: September 27, 2016Assignee: GreenCentre CanadaInventors: Sean Barry, Jason Coyle, Timothy James Clark, Jeffrey J.M. Hastie
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Publication number: 20160244548Abstract: The present application provides a composite material that comprises a solid and solid-supported non-polymeric switchable moiety, wherein the switchable moiety comprises a functional group that is switchable between a first form and a second form, said first form being neutral and hydrophobic, and said second form being ionized and hydrophilic. The composite material converts to, or is maintained in, said second form when the switchable moiety is exposed to CO2 at amounts sufficient to maintain the ionized form. The composite material converts to, or is maintained in, said first form when CO2 is removed or reduced to an amount insufficient to maintain the ionized form. CO2 is removed or reduced by exposing the composite material to heat and/or a flushing inert gas such as N2, Ar, or air. Envisioned uses of these composite materials includes removing water from non-aqueous solvents, removing water vapour from gaseous mixtures, and cleaning industrial reaction vessels and/or pipelines.Type: ApplicationFiled: September 18, 2014Publication date: August 25, 2016Applicants: Queen's University at Kingston, GreenCentre CanadaInventors: Kyle J. Boniface, Timothy James Clark, Michael F. Cunningham, Philip G. Jessop, Brian Ernest Mariampillai, Sean M. Mercer, Rui Resendes, Tobias Robert
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Patent number: 9284270Abstract: The present application provides methods and catalysts for activation of carboxylic acids for organic reactions.Type: GrantFiled: February 14, 2012Date of Patent: March 15, 2016Assignees: The Governers of the University of Alberta, Greencentre CanadaInventors: Dennis Hall, Nicolas Gernigon, Raed M. Al-Zoubi, Paul D. Thornton
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Publication number: 20150018493Abstract: The present application provides salen indium catalysts of the following general structure and the corresponding dimers. The salen indium catalysts are particularly useful in catalyzing ring-opening polymerizations of cyclic ester monomers, such as lactides. Also provided herein are methods of using the salen indium complexes to catalyze polymerization of cyclic ester monomers. Of particular interest is the successful polymerization of lactides using the present salen indium catalysts to produce poly(lactic acid) having high isotacticity.Type: ApplicationFiled: March 13, 2013Publication date: January 15, 2015Applicant: GREENCENTRE CANADAInventors: Parisa Mehrkhodavandi, Dinesh C. Aluthge, Timothy James Clark, Brian Mariampillai, Yun Yang
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Patent number: 8900444Abstract: A solvent that reversibly converts from a hydrophobic liquid form to hydrophilic liquid form upon contact with water and a selected trigger, e.g., contact with CO2, is described. The hydrophilic liquid form is readily converted back to the hydrophobic liquid form and water. The hydrophobic liquid is an amidine or amine. The hydrophilic liquid form comprises an amidinium salt or an ammonium salt.Type: GrantFiled: November 8, 2013Date of Patent: December 2, 2014Assignees: Queen's University at Kingston, GreenCentre CanadaInventors: Philip G. Jessop, Lam N. Phan, Andrew J. Carrier, Rui Resendes, Dominik Wechsler
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Publication number: 20140235908Abstract: A solvent that reversibly converts from a hydrophobic liquid form to hydrophilic liquid form upon contact with water and a selected trigger, e.g., contact with CO2, is described. The hydrophilic liquid form is readily converted back to the hydrophobic liquid form and water. The hydrophobic liquid is an amidine or amine. The hydrophilic liquid form comprises an amidinium salt or an ammonium salt.Type: ApplicationFiled: November 8, 2013Publication date: August 21, 2014Applicants: GreenCentre Canada, Queen's University at KingstonInventors: Philip G. JESSOP, Lam N. Phan, Andrew J. Carrier, Rui Resendes, Dominik Wechsler
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Patent number: 8580124Abstract: A solvent that reversibly converts from a hydrophobic liquid form to hydrophilic liquid form upon contact with water and a selected trigger, e.g., contact with CO2, is described. The hydrophilic liquid form is readily converted back to the hydrophobic liquid form and water. The hydrophobic liquid is an amidine or amine. The hydrophilic liquid form comprises an amidinium salt or an ammonium salt.Type: GrantFiled: October 28, 2010Date of Patent: November 12, 2013Assignees: Queen's University at Kingston, GreenCentre CanadaInventors: Philip G. Jessop, Lam N. Phan, Andrew J. Carrier, Rui Resendes, Dominik Wechsler