Process for the preparation of water absorptive composite material
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United States of America Patent
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Apr 19, 1988
Grant Date -
N/A
app pub date -
Jul 1, 1987
filing date -
Jul 1, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Aqueous solution of alkali or ammonium acrylate is applied to a prefabricated fibrous substrate, and the acrylate is subjected to polymerization in two steps, namely the first step in which the acrylate is polymerized by means of a radical polymerization initiator and the second step which is subsequent to the first step and in which the unpolymerized acrylate is polymerized by means of irradiation with electromagnetic radiation or corpuscular ionizing radiation.
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