Thermosetting polyurethane compositions
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United States of America Patent
Stats
-
Mar 10, 1981
Grant Date -
N/A
app pub date -
Oct 3, 1979
filing date -
Oct 3, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Improved thermoset or vulcanized polyurethane elastomers are obtained by adding to liquid polyurethane reactants, prior to reaction to form the polyurethane, organic peroxides having a half-life value of greater than one hour at 100.degree. C. Such mixtures may be heated to form the polyurethane article and thereafter thermoset or vulcanized, or the polyurethane containing the unactivated peroxide may be provided in sheet, crumbs, granules or otherwise and then formed and heated to thermoset or vulcanize the polyurethane.
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Cited Art Landscape
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