Patents Assigned to EXP SERVICES INC.
  • Methods for treating odors
    Patent number: 11964234
    Abstract: There are provided methods for treating a gas having an undesirable odor. The methods comprise contacting the gas with an acidic aqueous oxidizing composition having a pH of about 2.0 to about 3.0 and comprising at least one cation of a metal; a sequestering agent; and H2O2 and submitting the gas and the composition to UV radiation when the gas and the composition are contacting each other, wherein the treatment permits to reduce by at least 60% intensity of the undesirable odor.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: April 23, 2024
    Assignee: EXP SERVICES INC.
    Inventors: Martin Beaulieu, Stéphane Chabot, Yves Charest
  • METHODS FOR TREATING ODORS
    Publication number: 20220323903
    Abstract: There are provided methods for treating a gas having an undesirable odor. The methods comprise contacting the gas with an acidic aqueous oxidizing composition having a pH of about 2.0 to about 3.0 and comprising at least one cation of a metal; a sequestering agent; and H2O2 and submitting the gas and the composition to UV radiation when the gas and the composition are contacting each other, wherein the treatment permits to reduce by at least 60% intensity of the undesirable odor.
    Type: Application
    Filed: May 13, 2022
    Publication date: October 13, 2022
    Applicant: EXP SERVICES INC.
    Inventors: Martin BEAULIEU, Stéphane CHABOT, Yves CHAREST
  • Process for removing H2S from gas stream by calcium based reaction separation
    Patent number: 10118125
    Abstract: There are provided processes for removing H2S from a gas. The processes comprise contacting the gas with an aqueous composition comprising at least one calcium compound, thereby obtaining CaS and a H2S lean treated gas stream, while maintaining the pH at about 9.5 to about 13.0; and contacting the CaS with an aqueous oxidant solution, converting the CaS into at least one of CaSO3 and CaSO4, while maintaining the pH at about 9.5 to about 13.0.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: November 6, 2018
    Assignee: EXP SERVICES INC.
    Inventors: Stéphane Chabot, Yves Charest, Martin Beaulieu, Abderrahman Mahfoud
  • Fiberboards, uses and methods of preparation thereof
    Patent number: 9951474
    Abstract: There is provided a fiberboard, such as a MDF fiberboard or a HDF fiberboard, comprising wood fibers, a binder, and a sludge such as a pulp and a paper sludge. The sludge can be, for example, chosen from a primary pulp and paper sludge, a secondary pulp and paper sludge, a de-inking sludge, and mixtures thereof.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: April 24, 2018
    Assignees: Uniboard Canada Inc., EXP Services Inc.
    Inventors: Yves Charest, André Verville
  • Process for reducing the content of water soluble volatile organic compounds in a gas
    Patent number: 9574122
    Abstract: There is provided a method for reducing the content of at least one water soluble volatile organic compound in a gas. The method comprises contacting the gas with an aqueous acidic oxidizing composition comprising H2O2 and a metal catalyst, and submitting the at least one water soluble volatile organic compound and the aqueous acidic oxidizing composition to an UV radiation.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: February 21, 2017
    Assignees: Uniboard Canada Inc., EXP Services Inc.
    Inventors: Pierre-André Gignac, Martin Beaulieu, Yves Charest, Stéphane Chabot, Abderrahman Mahfoud, Jules Lemay
  • Methods for treating odors
    Patent number: 9522206
    Abstract: There are provided methods for treating a fluid having an undesirable odor. The methods comprise contacting the fluid with a H2O2 basic aqueous oxidizing composition and/or with a H2O2 acidic aqueous oxidizing composition. Optionally, the fluid can be further treated by contacting it with activated carbon and/or by submitting the fluid and the composition to UV radiation when they are contacting together.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: December 20, 2016
    Assignee: EXP SERVICES INC.
    Inventors: Martin Beaulieu, Stéphane Chabot, Yves Charest
  • Chitosan-based adhesives and uses thereof
    Patent number: 9234100
    Abstract: There is provided an adhesive comprising chitosan an optionally a crosslinking agent. A method for preparing such an adhesive is also disclosed. A wood-panel made with such an adhesive is also provided. Moreover, a method for manufacturing a wood-based panel is provided. The method comprises preparing a mixture comprising wood, chitosan, optionally a crosslinking agent, and optionally an acid, forming a mat with the mixture, and pressing the mat under heat and pressure so as to obtain the wood-based panel.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: January 12, 2016
    Assignees: Uniboard Canada Inc., EXP Services Inc.
    Inventors: Andre Verville, Yves Charest, Martin Beaulieu, Stephane Chabot, Richard Lepine
  • Chitosan-based adhesives and uses thereof
    Patent number: 8747539
    Abstract: There is provided an adhesive comprising chitosan an optionally a crosslinking agent. A method for preparing such an adhesive is also disclosed. A wood-panel made with such an adhesive is also provided. Moreover, a method for manufacturing a wood-based panel is provided. The method comprises preparing a mixture comprising wood, chitosan, optionally a crosslinking agent, and optionally an acid, forming a mat with the mixture, and pressing the mat under heat and pressure so as to obtain the wood-based panel.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: June 10, 2014
    Assignees: Uniboard Canada Inc., EXP Services Inc.
    Inventors: Andre Verville, Yves Charest, Martin Beaulieu, Stephane Chabot, Richard Lepine
  • CHITOSAN-BASED ADHESIVES AND USES THEREOF
    Publication number: 20120217680
    Abstract: There is provided an adhesive comprising chitosan an optionally a crosslinking agent. A method for preparing such an adhesive is also disclosed. A wood-panel made with such an adhesive is also provided. Moreover, a method for manufacturing a wood-based panel is provided. The method comprises preparing a mixture comprising wood, chitosan, optionally a crosslinking agent, and optionally an acid, forming a mat with the mixture, and pressing the mat under heat and pressure so as to obtain the wood-based panel.
    Type: Application
    Filed: May 3, 2012
    Publication date: August 30, 2012
    Applicants: EXP SERVICES INC., UNIBOARD CANADA INC.
    Inventors: Andre Verville, Yves Charest, Martin Beaulieu, Stephane Chabot, Richard Lepine