Surgery – Means and methods for collecting body fluids or waste material – Absorbent pad for external or internal application and...
Reexamination Certificate
2000-09-01
2003-12-02
Lo, Weilun (Department: 3761)
Surgery
Means and methods for collecting body fluids or waste material
Absorbent pad for external or internal application and...
C604S367000
Reexamination Certificate
active
06657098
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to absorbent articles, such as disposable diapers, which have an excellent deodorizing effect in suppressing odor emission from excrete
Absorbent articles such as disposable diapers having a deodorizing effect have been proposed, in which a deodorizing agent such as zeolite or activated carbon is used to prevent leakage of odors of excreta. However, the deodorizing performance claimed for the conventionally proposed absorbent articles is still unsatisfactory, and development of absorbent articles with more excellent deodorizing effects has been keenly demanded.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide an absorbent article which has an excellent deodorizing effect and prevents the odors of excreta from leaking out.
As a result of investigation, the present inventors have found that the above object of the present invention is accomplished by using a deodorizing agent having pores of a specific pore size in a specific ratio.
Based on the above finding, the present invention provides an absorbent article comprising a liquid permeable topsheet, a liquid impermeable backsheet (leakproof sheet), and a liquid retentive absorbent member and containing a porous deodorizing agent, wherein the porous deodorizing agent has such pores that the volume of the pores whose diameter ranges from 20 to 200 Å is 0.2 ml/g or more.
REFERENCES:
patent: 3856014 (1974-12-01), Yamauchi
patent: 4963519 (1990-10-01), Okabayashi et al.
patent: 5049365 (1991-09-01), Okabayashi et al.
patent: 5108739 (1992-04-01), Kurihara et al.
patent: 5407442 (1995-04-01), Karapasha
patent: 5630367 (1997-05-01), Kobata et al.
patent: 5679316 (1997-10-01), Ikenaga et al.
patent: 5690922 (1997-11-01), Mouri et al.
patent: 5733272 (1998-03-01), Brunner et al.
patent: 5800806 (1998-09-01), Yamamoto
patent: 6004477 (1999-12-01), Nakagawa et al.
patent: 6096299 (2000-08-01), Guarracino et al.
patent: 6287550 (2001-09-01), Trinh et al.
patent: 888785 (1999-01-01), None
patent: WO9111977 (1991-08-01), None
patent: WO9526207 (1995-10-01), None
Matsukane Masamoto
Niki Yoshifumi
Noki Ryuichi
Wakasa Masanobu
Kao Corporation
Lo Weilun
Stephens Jacqueline
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