Absorbent resin particles, absorbent article and production method therefor

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12178691
APP PUB NO 20220023111A1
SERIAL NO

17311905

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Abstract

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Water-absorbing resin particles are disposed, the water-absorbing resin particles including: a polymer particle containing a crosslinked polymer having a monomer unit derived from an ethylenically unsaturated monomer including at least one kind of compound selected from the group consisting of (meth)acrylic acid and a salt thereof; and a plurality of inorganic particles disposed on a surface of the polymer particle, in which a proportion of a (meth)acrylic acid and a salt thereof is 70 to 100 mol % with respect to a total amount of monomer units in the crosslinked polymer. In a case where a water absorption speed index I=(value of non-pressurization DW after 10 seconds)×6 [mL/g], and a water absorption speed index II=(value of non-pressurization DW after 3 minutes)/3 [mL/g], a static suction index α calculated by the following formula:

description='In-line Formulae' end='lead'α=(I+II)/2description='In-line Formulae' end='tail'

is 5.0 mL/g or higher.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO SEIKA CHEMICALS CO LTDKAKO-GUN HYOGO 675-0145

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yabuguchi, Hiroki Himeji, JP 14 24

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