Foamed polymeric materials
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United States of America Patent
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Jul 16, 1985
Grant Date -
N/A
app pub date -
Jul 24, 1984
filing date -
Jul 24, 1984
priority date (Note) -
Expired
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Abstract
Foamed water-swellable polymeric water absorbent materials are prepared by contacting a polymer capable of having a water-swellable character and containing acid moieties in acid form with a blowing agent such as sodium bicarbonate, which blowing agent is capable of neutralizing the acid moieties of the polymer. The foamed polymers are useful in a wide variety of water absorbent applications.
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