Patent Number: 7,087,669

Title: Absorbents and process for producing the same, absorbable constructs and absorbable articles

Abstract: Absorbents comprising an water-absorbable resin and water-insoluble nonporous spherical monoparticles having an average diameter of 1 to 50 nm; a process for producing these absorbent by mixing the spherical monoparticles, which have been solubilized in water, with dry powdery particles of the water-absorbable resin; absorbable constructs composed of the above absorbent with a matrix wherein the amount of the absorbent ranges from 30 to 95% by weight based on the absorbable construct; and absorbable articles provided with the absorbable construct, a liquid-permeable sheet and an air-permeable back sheet. These absorbents, absorbable constructs and absorbable articles are excellent in the diffusion/absorption speed and absorption amount of a liquid within the resin even in case of absorbing a liquid containing water-insoluble or hardly water-soluble matters such as menstrual blood or feces.

Inventors: Ota; Yoshihisa (Kyoto, JP), Iwasaki; Yoshiyuki (Kyoto, JP)

Assignee: Sanyo Chemical Industries, Ltd.

International Classification: C08K 3/34 (20060101)

Expiration Date: 8/08/02018