Patents by Inventor Robert Joseph Pafford, IV

Robert Joseph Pafford, IV 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).

  • Phosphorous-containing organic polymer and compositions and processes including same
    Patent number: 8877852
    Abstract: An organic polymer including internal pendant phosphorous acid groups at a level of >0.25% phosphorus by weight based on the weight of said organic polymer, the phosphorus acid groups being separated from the backbone of the organic polymer by no more than 2 alkylene glycol units, the organic polymer having an acid number of from 100 to 1,000, and a Mw of from 1,000 to 75,000, wherein the organic polymer has been formed by emulsion polymerization from at least one ethylenically unsaturated monomer is provided. Compositions further including an emulsion polymer including from 0.05% to 2% phosphorous, present as pendant phosphorous acid groups, by weight based on the weight of the emulsion polymer, and, optionally, an inorganic particle are also provided as are processes related to the compositions.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: November 4, 2014
    Assignee: Rohm and Haas Company
    Inventors: James Charles Bohling, Matthew Stewart Gebhard, Thomas Glenn Madle, Alvin Michael Maurice, Robert Joseph Pafford, IV, William Douglas Rohrbach