Water absorbent agent
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United States of America Patent
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Jun 30, 2020
Grant Date -
Jan 4, 2018
app pub date -
Dec 28, 2015
filing date -
Jan 7, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a water-absorbing agent which maintains a certain degree of liquid permeability and water absorption speed while also reducing re-wet in a disposable diaper, without the use of costly raw materials or costly apparatuses. The water-absorbing agent of the present invention contains a polyacrylic acid salt-based water-absorbing resin as a main component and has physical properties falling within a specific range, the physical properties being saline flow conductivity (SFC), gap fluid retention property under pressure, and a proportion of particles having a particle diameter of not less than 150 μm and less than 710 μm.
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