Patents by Inventor Adrian R. Ward

Adrian R. Ward 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).

  • Biocide free associative thickener
    Patent number: 11965091
    Abstract: The present invention relates to a composition comprising an aqueous solution of a) a hydrophobically modified alkylene oxide polymer comprising a hydrophobic portion functionalized with a protonated secondary or tertiary amine or a quaternary ammonium salt and b) an acid and a salt thereof, which acid is phosphoric acid, nitrilotris(methylene)triphosphonic acid, hydrochloric acid, or sulfuric acid. The composition of the present invention is useful for the preparation of an associative thickener that can be stored for long periods, in the absence of ancillary biocides, without spoilage from biodeteriogenic attack.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: April 23, 2024
    Assignee: Rohm and Haas Company
    Inventors: Deborah D. Graves, Jessica R. Levin, John J. Rabasco, Wenqin Wang, Adrian R. Ward
  • BIOCIDE FREE ASSOCIATIVE THICKENER
    Publication number: 20210017380
    Abstract: The present invention relates to a composition comprising an aqueous solution of a) a hydrophobically modified alkylene oxide polymer comprising a hydrophobic portion functionalized with a protonated secondary or tertiary amine or a quaternary ammonium salt and b) an acid and a salt thereof, which acid is phosphoric acid, nitrilotris(methylene)triphosphonic acid, hydrochloric acid, or sulfuric acid. The composition of the present invention is useful for the preparation of an associative thickener that can be stored for long periods, in the absence of ancillary biocides, without spoilage from biodeteriogenic attack.
    Type: Application
    Filed: July 9, 2020
    Publication date: January 21, 2021
    Inventors: Deborah D. Graves, Jessica R. Levin, John J. Rabasco, Wenqin Wang, Adrian R. Ward