Patents Represented by Attorney, Agent or Law Firm Chipo M. Joliboi
  • Semi-continuous bimodal emulsion polymerization
    Patent number: 6906151
    Abstract: An aqueous semi-continuous emulsion polymerization process for producing bimodal polymer particles in volumes large than a single batch size is provided. A bimodal polymer composition prepared by the process of carrying out an aqueous semi-continuous emulsion polymerization is also provided.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: June 14, 2005
    Assignee: Rohm and Haas Company
    Inventors: Thomas George Throne, Owen Clifford Hallerud
  • Paper having improved print quality and method of making the same
    Patent number: 6863775
    Abstract: A paper having an improved print quality comprises a paper substrate having a surface with a surface roughness of less than 6 microns and a surface gloss of 5-80% which surface has been coated with a light-weight, low solids content, top coat. The top coat may comprise (i) a rheology modifier/binder component and at least one pigment or (ii) at least one binder coated pigment. The top coat provides a significant improvement to the delta gloss of the so-treated paper.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: March 8, 2005
    Assignee: Rohm and Haas Company
    Inventors: Barrett Richard Bobsein, James Tinney Brown, Zhenwen Fu, Janet Drobits Windisch
  • Coating composition
    Patent number: 6818697
    Abstract: An improved aqueous coating composition which includes a bimodal copolymer. Methods of using an aqueous coating composition which includes a bimodal copolymer.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: November 16, 2004
    Assignee: Rohm and Haas Company
    Inventors: Wei Zhang, Ozzie Moore Pressley