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AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsZhixin Li, Joseph B. Gardner, Chaodong Xiao, John S. Thomaides, Yasuo Tokimori, Stanislaw Petrash, Christopher G. Gore
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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.
A mold or former used to form natural or synthetic rubber articles by immersion of the mold or former into a natural or synthetic rubber latex, onto which former is first disposed a release composition to facilitate release of the rubber latex from the mold or former, the release composition comprising an emulsion polymer having a Tg of at least −10° C., the emulsion polymer formed from:
Dependencies are inferred from the claim text.