Fast-fibrillating lyocell fibers, and use thereof

US10570565B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10570565-B2
Application numberUS-201515518919-A
CountryUS
Kind codeB2
Filing dateMay 29, 2015
Priority dateOct 29, 2014
Publication dateFeb 25, 2020
Grant dateFeb 25, 2020

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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 relates to fibrillated lyocell fibers which have a fibrillation quotient Q of 20 or more and whose content of microfibers with a fineness of less than 14 mesh and a diameter of less than 2 μm is at least 50%, as well as the use thereof for producing a wipe, which contains pulp and 5 to 20 wt. % of fibrillated lyocell fibers.

First claim

Opening claim text (preview).

What is claimed is: 1. A wipe comprising pulp and 5 to 20 wt. % of fibrillated lyocell fibers wherein the fibrillated lyocell fibers have a fibrillation quotient Q of 20 or more. 2. The wipe according to claim 1 , wherein the pulp is paper pulp. 3. Fibrillated lyocell fibers having a fibrillation quotient Q of 20 or more, wherein said fibers comprise at least 50% microfibers, with-a fineness of less than 14 mesh and a diameter of less than 2 μm. 4. A wipe comprising the fibers of claim 3 , wherein the wipe comprises pulp and 5 to 20 wt. % of fibrillated lyocell fibers. 5. The wipe according to claim 4 , wherein the pulp is paper pulp. 6. A wet-laying process for producing a wipe, wherein said process comprises providing 5 to 20 wt. % of the fibrillated lyocell fibers according to claim 3 and pulp, and obtaining the wipe. 7. The process according to claim 6 , wherein the pulp is a paper pulp.

Assignees

Inventors

Classifications

  • cellulosic · CPC title

  • Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof · CPC title

  • by fibrillation of films or filaments · CPC title

  • with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts · CPC title

  • Regenerated cellulose series · CPC title

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What does patent US10570565B2 cover?
The present invention relates to fibrillated lyocell fibers which have a fibrillation quotient Q of 20 or more and whose content of microfibers with a fineness of less than 14 mesh and a diameter of less than 2 μm is at least 50%, as well as the use thereof for producing a wipe, which contains pulp and 5 to 20 wt. % of fibrillated lyocell fibers.
Who is the assignee on this patent?
Chemiefaser Lenzing Ag
What technology area does this patent fall under?
Primary CPC classification D21H11/00. Mapped technology areas include Textiles & Paper.
When was this patent published?
Publication date Tue Feb 25 2020 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).