Water absorbing material
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United States of America Patent
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Apr 21, 2015
Issued Date -
N/A
app pub date -
Jun 4, 2012
filing date -
Feb 28, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a water absorbing material having a granular core portion and a coating layer portion coating the granular core portion, which enables a test result after use to be clearly determined by developing vivid and uniform color. In the water absorbing material, the coating layer portion is composed of 90 wt % to 96 wt % of a substrate and 10 wt % to 4 wt % of an excretion test material, the excretion test material contains a porous adsorbent having an adsorbance of 20 wt % or greater and including micropores, and an excretion test indicator adsorbed on the micropores of the porous adsorbent, and the excretion test indicator is added in an amount more than 0.1 wt % and not more than 1.0 wt % relative to the total amount of the coating layer portion.
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