Lignin-containing coating composition and ultrafine fibers including the same

US10066125B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10066125-B2
Application numberUS-201615156644-A
CountryUS
Kind codeB2
Filing dateMay 17, 2016
Priority dateOct 28, 2015
Publication dateSep 4, 2018
Grant dateSep 4, 2018

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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.

Disclosed is an ultrafine fiber including lignin, a carrier polymer and a carbon material. The ultrafine fiber, which includes lignin, can exhibit the properties of lignin such as antibacterial property, biodegradability, etc. Accordingly, it can be used widely in medical materials such as nanofiber, nanofiber web, nanofiber sheet, etc. for wound healing of the skin's dermal layer. Also, the ultrafine fiber can be used in sheath of electric cables because it contains a carbon material and has superior conductivity. In addition, because the ultrafine fiber can hold a large quantity of water, it can be used in various fields including sanitary pads for women, diapers for babies and adults, etc.

First claim

Opening claim text (preview).

What is claimed is: 1. A coating composition comprising lignin and a carbon material, wherein the carbon material is coated with the lignin, the lignin is coated on the carbon material with a thickness of 1-20 nm, and a weight ratio of the lignin to the carbon material is less than 40:1 to 3:2. 2. The coating composition according to claim 1 , wherein the carbon material comprises one or more selected from a group consisting of carbon nanotube, graphene, fullerene, boron nitride (BN) nanotube, graphite, expanded graphite, carbon fiber and carbon black. 3. The coating composition according to claim 2 , wherein the carbon nanotube comprises one or more selected from a group consisting of single-walled carbon nanotube, double-walled carbon nanotube and multi-walled carbon nanotube. 4. The coating composition according to claim 3 , wherein the carbon nanotube has a diameter of 1-100 nm. 5. The coating composition according to claim 1 , wherein the coating composition further comprises an organic binder and the organic binder comprises one or more selected from a group consisting of ethyl cellulose, polyurethane, epoxy, nitrocellulose, phenol resin, polyester, polyvinyl, urea resin, polyethylene resin, acryl resin, silicone resin and a mixture thereof.

Assignees

Inventors

Classifications

  • Lignin · CPC title

  • Carbon nanotubes · CPC title

  • Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids · CPC title

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What does patent US10066125B2 cover?
Disclosed is an ultrafine fiber including lignin, a carrier polymer and a carbon material. The ultrafine fiber, which includes lignin, can exhibit the properties of lignin such as antibacterial property, biodegradability, etc. Accordingly, it can be used widely in medical materials such as nanofiber, nanofiber web, nanofiber sheet, etc. for wound healing of the skin's dermal layer. Also, the ul…
Who is the assignee on this patent?
Korea Inst Sci & Tech
What technology area does this patent fall under?
Primary CPC classification C09D197/005. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Sep 04 2018 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).