Patents Represented by Attorney, Agent or Law Firm Thomas P. Roland
  • Mold release and anti-blocking coating for powder-free natural of synthetic rubber articles
    Patent number: 6784397
    Abstract: The present invention is directed to a release composition for molds and formers used in the production of natural and synthetic latex articles. The release coating contains a water-borne, high Tg polymer formed from at least one hydrophobic monomer and at least one hydrophilic monomer, where the Tg of the polymer is at least −10° C. One advantage of the release composition is that it is compatible with a coagulant solution used in the formation of latex gloves. Articles formed using the release coating have good anti-blocking properties.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: August 31, 2004
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Zhixin Li, Joseph B. Gardner, Chaodong Xiao, John S. Thomaides, Yasuo Tokimori, Stanislaw Petrash, Christopher G. Gore