Absorbent resin particle, and absorber and asborbent article employing the same
First Claim
1. An absorbent resin particle comprising:
- a crosslinked polymer (A) including, as essential constituent units, a water-soluble vinyl monomer (a1), and/or a vinyl monomer (a2) that is formed into the water-soluble vinyl monomer (a1) by hydrolysis, and an internal crosslinking agent (b); and
a hydrophobic substance (C), wherein the absorbent resin particle has a structure such that a part or an entirety of the hydrophobic substance (C) is contained in the inside of each particle of the absorbent resin particle.
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Accused Products
Abstract
An absorbent resin particle comprising a crosslinked polymer (A) and a hydrophobic substance (C), the crysslinked polymer (A) including, as essential constituent units, a water-soluble vinyl monomer (a1), and/or a vinyl monomer (a2) that is formed into the water-soluble vinyl monomer (a1) by hydrolysis, and an internal crosslinking agent (b), is provided, wherein the absorbent resin particle has a structure such that a part or an entirety of the hydrophobic substance (C) is contained in the inside of each particle of the absorbent resin particle. Further, an absorber and an absorbent article in which the foregoing absorbent resin particle is employed are provided also. It is possible to provide the absorbent resin particle applicable for forming an absorbent article that exhibits a high absorption performance (absorption amount and absorption rate) under any condition and is substantially free from leakage, and an absorber as well as an absorbent article in which this absorbent resin particle are employed.
32 Citations
13 Claims
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1. An absorbent resin particle comprising:
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a crosslinked polymer (A) including, as essential constituent units, a water-soluble vinyl monomer (a1), and/or a vinyl monomer (a2) that is formed into the water-soluble vinyl monomer (a1) by hydrolysis, and an internal crosslinking agent (b); and
a hydrophobic substance (C), wherein the absorbent resin particle has a structure such that a part or an entirety of the hydrophobic substance (C) is contained in the inside of each particle of the absorbent resin particle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An absorbent resin particle having a diffusion absorption amount in a range of 40 ml to 70 ml.
Specification