Water-disintegratable non-woven fibrous sheet

US9303358B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9303358-B2
Application numberUS-201214359316-A
CountryUS
Kind codeB2
Filing dateNov 20, 2012
Priority dateNov 30, 2011
Publication dateApr 5, 2016
Grant dateApr 5, 2016

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A water-disintegratable non-woven sheet comprising fibers bound by a water-soluble cellulose ether can be produced laying fibers to a base sheet, b) contacting the base sheet with a water-based composition comprising a water-soluble cellulose ether having a viscosity of up 500 mPa·s, measured as a 2 weight percent solution in water at 20° C. using a Haake Viscotester VT550 with a cylinder system, cup MV, at 2.55 s −1 , and c) drying the sheet which comprises fibers being bound by the water-soluble cellulose ether.

First claim

Opening claim text (preview).

The invention claimed is: 1. A water-disintegratable non-woven sheet comprising fibers bound by a water-soluble cellulose ether having a viscosity of up to 500 mPa·s, measured as a 2 weight percent solution in water at 20° C. using a Haake Viscotester VT550 with a cylinder system, cup MV, at 2.55 s −1 , wherein the water-disintegratable non-woven sheet comprises from 3.5 to 50.0 weight percent of the water-soluble cellulose ether, from 50.0 to 96.5 weight percent of fibers and from…

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What does patent US9303358B2 cover?
A water-disintegratable non-woven sheet comprising fibers bound by a water-soluble cellulose ether can be produced laying fibers to a base sheet, b) contacting the base sheet with a water-based composition comprising a water-soluble cellulose ether having a viscosity of up 500 mPa·s, measured as a 2 weight percent solution in water at 20° C. using a Haake Viscotester VT550 with a cylinder syste…
Who is the assignee on this patent?
Dow Global Technologies Llc
What technology area does this patent fall under?
Primary CPC classification D21H17/26. Mapped technology areas include Textiles & Paper.
When was this patent published?
Publication date Tue Apr 05 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).