Polymer nanofiber sheet and method for producing the same

US10294595B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10294595-B2
Application numberUS-201514879227-A
CountryUS
Kind codeB2
Filing dateOct 9, 2015
Priority dateOct 21, 2014
Publication dateMay 21, 2019
Grant dateMay 21, 2019

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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.

A polymer nanofiber sheet including polymer nanofibers having a polymer, the polymer nanofibers being accumulated and three dimensionally entangled. The polymer nanofiber sheet has a low molecular weight organic compound containing at least one 4- or higher-membered ring structure with an ether linkage. The difference between the average solubility parameter of the polymer and the average solubility parameter of the low molecular weight organic compound is less than 8 (J/cm3)1/2.

First claim

Opening claim text (preview).

What is claimed is: 1. A polymer nanofiber sheet comprising polymer nanofibers each of which comprises a polymer, the polymer nanofibers being accumulated, three-dimensionally entangled, and in contact with each other, wherein the polymer nanofiber sheet has a tensile elastic modulus of 100 MPa to 480 MPa, wherein the polymer is a polyamide, a polyamide imide, a polymethyl methacrylate, or a polyethylene terephthalate, wherein a low molecular weight organic compound is on a surface of respective said polymer nanofibers and in the respective said polymer nanofibers, wherein the polymer nanofibers are crosslinked with each other by a chemical reaction between the polymer in each of the polymer nanofibers and the low molecular weight organic compound interposed between the polymer nanofibers at a position where the polymer nanofibers are in contact with each other, and wherein the low molecular weight organic compound is a compound of formula (1): 2. The polymer nanofiber sheet according to claim 1 , wherein the low molecular weight organic compound is contained in an amount of 60% by weight or less with respect to a total weight of the polymer and the low molecular weight organic compound. 3. The polymer nanofiber sheet according to claim 1 , wherein the polymer nanofiber sheet has a film thickness of 0.1 μm to less than 1 mm. 4. The polymer nanofiber sheet according to claim 1 , wherein the polymer nanofiber sheet has pores having an average pore diameter of 10 nm to 50 μm. 5. The polymer nanofiber sheet according to claim 1 , wherein the polymer nanofibers have an average diameter of 50 nm to less than 3000 nm.

Assignees

Inventors

Classifications

  • Manufacture of films or sheets · CPC title

  • D04H1/04Primary

    from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres (felting apparatus D04H17/00) · CPC title

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What does patent US10294595B2 cover?
A polymer nanofiber sheet including polymer nanofibers having a polymer, the polymer nanofibers being accumulated and three dimensionally entangled. The polymer nanofiber sheet has a low molecular weight organic compound containing at least one 4- or higher-membered ring structure with an ether linkage. The difference between the average solubility parameter of the polymer and the average solub…
Who is the assignee on this patent?
Canon Kk
What technology area does this patent fall under?
Primary CPC classification D04H1/04. Mapped technology areas include Textiles & Paper.
When was this patent published?
Publication date Tue May 21 2019 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).