Patents by Inventor Etienne Levert

Etienne Levert 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).

  • Heat sealable paper-based substrate coated with water-based coatings, its process of manufacturing and uses thereof
    Patent number: 11851821
    Abstract: A heat sealable paper-based substrate is provided with at least the first surface covered with at least one primer coat and at least one topcoat over the primer coat, wherein: the primer coat is formed from a substantially wax-free aqueous dispersion of at least one polymer or copolymer, has a coefficient of thermal expansion equal to or less than about 200 ?m/(m·° C.) for at least one operating temperature, and has a complex viscosity of at least about 80000 poises at a heat seal temperature; the topcoat has a different composition than the primer coat and is formed from an aqueous dispersion of at least one thermoplastic polymer or copolymer, and has a complex viscosity of at least about 3000 poises at a heat seal temperature. The heat sealable paper-based substrate can be used to make articles to contain goods such as cold or hot beverages or food products.
    Type: Grant
    Filed: September 12, 2022
    Date of Patent: December 26, 2023
    Assignee: Cascades Sonoco Inc.
    Inventors: Yvon Mongrain, Etienne Levert, Simon Provencher
  • Heat Sealable Paper-Based Substrate Coated with Water-Based Coatings, Its Process of Manufacturing and Uses Thereof
    Publication number: 20230012879
    Abstract: A heat sealable paper-based substrate is provided with at least the first surface covered with at least one primer coat and at least one topcoat over the primer coat, wherein: the primer coat is formed from a substantially wax-free aqueous dispersion of at least one polymer or copolymer, has a coefficient of thermal expansion equal to or less than about 200 ?m/(m·° C.) for at least one operating temperature, and has a complex viscosity of at least about 80000 poises at a heat seal temperature; the topcoat has a different composition than the primer coat and is formed from an aqueous dispersion of at least one thermoplastic polymer or copolymer, and has a complex viscosity of at least about 3000 poises at a heat seal temperature. The heat sealable paper-based substrate can be used to make articles to contain goods such as cold or hot beverages or food products.
    Type: Application
    Filed: September 12, 2022
    Publication date: January 19, 2023
    Inventors: Yvon Mongrain, Etienne Levert, Simon Provencher
  • Heat Sealable Paper-Baed Substrate Coated with Water-Based Coatings, Its Process of Manufacturing and Uses Thereof
    Publication number: 20210025114
    Abstract: A heat sealable paper-based substrate is provided with at least the first surface covered with at least one primer coat and at least one topcoat over the primer coat, wherein: the primer coat is formed from a substantially wax-free aqueous dispersion of at least one polymer or copolymer, has a coefficient of thermal expansion equal to or less than about 200 ?m/(m·° C.) for at least one operating temperature, and has a complex viscosity of at least about 80000 poises at a heat seal temperature; the topcoat has a different composition than the primer coat and is formed from an aqueous dispersion of at least one thermoplastic polymer or copolymer, and has a complex viscosity of at least about 3000 poises at a heat seal temperature. The heat sealable paper-based substrate can be used to make articles to contain goods such as cold or hot beverages or food products.
    Type: Application
    Filed: July 27, 2020
    Publication date: January 28, 2021
    Inventors: Yvon Mongrain, Etienne Levert, Simon Provencher