Absorbent article

US9504767B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9504767-B2
Application numberUS-201314430789-A
CountryUS
Kind codeB2
Filing dateAug 20, 2013
Priority dateSep 28, 2012
Publication dateNov 29, 2016
Grant dateNov 29, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present invention addresses the problem of providing an absorbent article that has an improved ability to transfer menstrual blood from a liquid-permeable layer to an absorbent body and can reduce the amount of the menstrual blood remaining in the liquid-permeable layer. To solve this problem, provided is a sanitary napkin provided with a top sheet, a back sheet and an absorbent body that is interposed between the top sheet and the back sheet, wherein convex portions formed in an excretion orifice contact region of the top sheet are coated with a blood lubricity-imparting agent that has a kinetic viscosity of 0.01-80 mm 2 /s at 40° C., a water retention rate of 0.01-4.0 mass % and a weight-average molecular weight of less than 1,000.

First claim

Opening claim text (preview).

The invention claimed is: 1. An absorbent article comprising a liquid-permeable layer, a liquid-impermeable layer and an absorbent body situated between the liquid-permeable layer and the liquid-impermeable layer, wherein the liquid-permeable layer has a first layer with a skin contact surface and a non-skin contact surface, the first layer is a layer formed by heat stretching of a heat-extendable fiber layer that has been partially compressed by compressed sections, a project…

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What does patent US9504767B2 cover?
The present invention addresses the problem of providing an absorbent article that has an improved ability to transfer menstrual blood from a liquid-permeable layer to an absorbent body and can reduce the amount of the menstrual blood remaining in the liquid-permeable layer. To solve this problem, provided is a sanitary napkin provided with a top sheet, a back sheet and an absorbent body that i…
Who is the assignee on this patent?
Unicharm Corp
What technology area does this patent fall under?
Primary CPC classification A61L15/20. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Nov 29 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).