Absorbent body and absorbent article comprising the same
AssigneeLivedo Corporation
InventorsYoshihisa OTA, Motoko NISHIDA
Life of this patent
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Abstract
The present invention provides an absorbent body comprising: a base material and a water absorbent resin powder fixed on the base material by a fixing agent, wherein the base material is a fiber base material having a mass per unit area in a range from 10 g/m2 to 500 g/m2, and the fixing agent is a copolymer having an acid value in a range from 20 mgKOH/g to 150 mgKOH/g and including a structural unit (X) derived from at least one monomer selected from the group consisting of an olefin and a vinyl aromatic compound and a structural unit (Y) derived from a monomer having an acidic group. The absorbent body has excellent water absorbent resin powder supporting property.
Claims15
1-17. (canceled)
An absorbent body comprising:
- a base material and a water absorbent resin powder fixed on the base material by a fixing agent,
- wherein the base material is a fiber base material having a mass per unit area in a range from 10 g/m2 to 500 g/m2,
- a material of a fiber constituting the fiber base material contains at least one member selected from the group consisting of polyethylene, polypropylene and polyethylene telephthalate,
- the fixing agent is a copolymer having an acid value in a range from 50 mgKOH/g to 130 mgKOH/g and including a structural unit (X) derived from at least one monomer selected from the group consisting of an olefin and a vinyl aromatic compound and a structural unit (Y) derived from a monomer having an acidic group,
- the copolymer is a graft copolymer including a main chain having the structural unit (X) and a side chain having the structural unit (Y), and
- the monomer having an acidic group is at least one monomer selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, fumaric acid and maleic anhydride.
Dependencies are inferred from the claim text.