Patents by Inventor Roice A. Wille

Roice A. Wille 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).

  • Patent number: 10774233
    Abstract: The invention relates to an aqueous fluoropolymer hybrid composition having superior weathering resistance while maintaining excellent mechanical properties in coatings, paints, caulks and adhesives. The composition is comprised of: a) a vinylidene fluoride polymer, such as KYNAR® polymers from Arkema, b) a first vinyl polymer immiscible with the vinylidene fluoride polymer and having a Tg of less than 0° C., and c) a second vinyl polymer of a different composition, also having a Tg of less than 0° C., and containing groups capable of crosslinking. The invention also relates to waterborne coatings or paints containing the aqueous fluoropolymer hybrid composition, and an article, object, or structure coated with the fluoropolymer hybrid composition on at least one surface, either in a factory or in the field, to confer protection and decorative properties. Free films made from the waterborne compositions of the invention have a dynamic mechanical analysis loss tangent, tan (?), of greater than 0.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: September 15, 2020
    Assignee: ARKEMA INC.
    Inventors: Roice A. Wille, Kurt A. Wood
  • Patent number: 10322381
    Abstract: Hollow fiber membranes having improved toughness and durability are prepared using a vinylidene fluoride polymer-containing component, such as Kynaro resins, having relatively low crystallinity. One aspect of the invention provides a membrane in the form of a fiber, wherein i) the fiber has a porous wall of a polymeric component enclosing a central hollow space extending the length of the fiber, ii) the polymeric component has a crystallinity as determined by wide angle x-ray diffraction of less than about 35%, iii) the polymeric component is comprised of at least one homopolymer or copolymer of vinylidene fluoride and iv) the membrane has an energy to break of at least about 0.5 J per square mm of membrane cross section.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: June 18, 2019
    Assignee: ARKEMA INC.
    Inventors: Walter P. Kosar, Roderick Reber, III, Gregory S. O'Brien, Scott R. Gaboury, Roice A. Wille
  • Patent number: 9447256
    Abstract: The invention relates to methods of polymerizing fluoromonomers using non-fluorinated surfactants, in particular to emulsion polymerization method for producing fluoropolymer latex. Specifically, the method of polymerization uses one or more alkyl sulfate surfactants.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: September 20, 2016
    Assignee: Arkema Inc.
    Inventors: Ramin Amin-Sanayei, Lotfi Hedhli, Mehdi Durali, Roice A. Wille
  • Publication number: 20140179868
    Abstract: The invention relates to methods of polymerizing fluoromonomers using non-fluorinated surfactants, in particular to emulsion polymerization method for producing fluoropolymer latex. Specifically, the method of polymerization uses one or more alkyl sulfate surfactants.
    Type: Application
    Filed: July 25, 2012
    Publication date: June 26, 2014
    Inventors: Ramin Amin-Sanayei, Lotfi Hedhli, mehdi Durali, Roice A. Wille
  • Patent number: RE50063
    Abstract: The invention relates to an aqueous fluoropolymer hybrid composition having superior weathering resistance while maintaining excellent mechanical properties in coatings, paints, caulks and adhesives. The composition is comprised of: a) a vinylidene fluoride polymer, such as KYNAR® polymers from Arkema, b) a first vinyl polymer immiscible with the vinylidene fluoride polymer and having a Tg of less than 0° C., and c) a second vinyl polymer of a different composition, also having a Tg of less than 0° C., and containing groups capable of crosslinking. The invention also relates to waterborne coatings or paints containing the aqueous fluoropolymer hybrid composition, and an article, object, or structure coated with the fluoropolymer hybrid composition on at least one surface, either in a factory or in the field, to confer protection and decorative properties. Free films made from the waterborne compositions of the invention have a dynamic mechanical analysis loss tangent, tan (?), of greater than 0.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: July 30, 2024
    Assignee: Arkema Inc.
    Inventors: Roice A. Wille, Kurt A. Wood