Patents by Inventor Richard C. Hoy

Richard C. Hoy 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 REDUCING SIDE-REACTIONS DURING ALKYLENE GLYCOL AND POLY-ALKYLENE GLYCOL MANUFACTURING
    Publication number: 20100063327
    Abstract: This invention relates to a process of producing one or more of an alkylene glycol or poly-alkylene glycol by the reaction of an alkylene oxide and water whereby reduced levels of undesired by products such as carbonyl compounds, ultraviolet light absorbing compounds and various metal species are produced.
    Type: Application
    Filed: December 12, 2007
    Publication date: March 11, 2010
    Applicant: DOW TECHNOLOGY INVESTMENTS LLC
    Inventors: Richard C. Hoy, Louis A. Kapicak
  • Water-soluble polyurethane comb polymer production
    Patent number: 4496708
    Abstract: Water soluble polyurethanes, having hydrophilic polyether backbone and pendant monovalent hydrophobic groups of sufficient size and number while establishing proper hydrophilic/lipophilic balance, provide improved thickening of aqueous systems.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: January 29, 1985
    Assignee: Union Carbide Corporation
    Inventors: David C. Dehm, Kenneth L. Hoy, Richard C. Hoy
  • Polymers with hydrophobe bunches
    Patent number: 4426485
    Abstract: A water-soluble, thermoplastic, organic polymer is disclosed having segments of bunched monovalent hydrophobic groups. These polymers provide superior thickening and leveling in aqueous systems, through micelle-like associations, and aid suspension of particulate materials in non-aqueous systems.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: January 17, 1984
    Assignee: Union Carbide Corporation
    Inventors: Kenneth L. Hoy, Richard C. Hoy