AQUEOUS LIQUID ABSORBING RESIN, AQUEOUS LIQUID ABSORBING COMPOSITION, AND ABSORBENT BODY AND ABSORBENT ARTICLE USING SAME
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United States of America Patent
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Issued Date -
Sep 3, 2015
app pub date -
Sep 18, 2013
filing date -
Sep 21, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An absorbent resin and an absorbent composition that use a large amount of material derived from plants, have excellent absorbing capability in a compressed state due to having a favorable gel elastic modulus. An absorbent resin made by bonding (A1) an oxidized polysaccharide having a carboxyl group that may be neutralized by a neutralizing agent, and/or (A2) a crosslinked compound thereof with (B1) a poly(meth)acrylic acid where at least one of the carboxyl groups may be neutralized by a neutralizing agent, and/or (B2) a crosslinked compound thereof; or an absorbent composition made by blending (A1) and/or (A2) and (B1) and/or the (B2); wherein the weight average molecular weight of (A1) is 2,000 to 10,000,000, the acid value of (A1) is 65 to 524 mgKOH/g, and if (A1) has a carboxyl group that has been neutralized by a neutralizing agent, the acid value prior to neutralizing is 65 to 524 mgKOH/g.
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