Blowing agent composition
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United States of America Patent
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Sep 24, 1991
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N/A
app pub date -
Oct 20, 1988
filing date -
Jun 30, 1983
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Expired
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Abstract
The use as an activator for a chemical blowing agent, or as an accelerator or activator in the vulcanization of rubber, of a reaction product of urea and an oxide, carbonate or hydroxide of zinc, cadmium, calcium or lead, which reaction product may be optionally solvated, and certain such products per se.
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