# US 10,119,203 B2 · Glossy member and method of producing the member

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- Number: US 10,119,203 B2
- Document ID: US10119203B2
- Status: Granted
- Kind: B2
- Application number: 15/006,334
- Filed: 2016-01-26
- Published: 2016-08-04
- Granted: 2018-11-06
- Earliest claimed: 2015-02-02
- Assignees: Canon Kabushiki Kaisha
- Applicants: Canon Kabushiki Kaisha
- Inventors: Tetsuo Hino; Kenji Takashima; Kazuhiro Yamauchi
- Web page: https://patentgrep.com/patent/US10119203B2

## CPC

- D01D 5/0084: {Coating by electro-spinning, i.e. the electro-spun fibres are not removed from the collecting device but remain integral with it, e.g. coating of prostheses}
- D01D 5/003: {the material being a polymer solution or dispersion (D01D5/0053 takes precedence)}
- D01D 5/0092: {characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields}
- D10B 2321/08: polymers of unsaturated carboxylic acids or unsaturated organic esters, e.g. polyacrylic esters, polyvinyl acetate
- D10B 2401/20: optical
- D01D: MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D10B: INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES

## Abstract

Provided is a glossy member, including: a polymer substrate; and a polymer fiber assembly disposed on the polymer substrate, in which: the polymer fiber assembly has polymer fibers oriented in a given direction; an absolute value of a difference between an average solubility parameter of a constituent material for the polymer substrate and an average solubility parameter of a polymer material of the polymer fibers is less than 5 (J/cm3)1/2; the polymer fibers have an orientation degree of 90% or more; the polymer fibers have fiber diameters of 0.05 μm or more and 5 μm or less; and in at least part of a repeating unit structure in the polymer material, a dipole moment is 0 D or more and 3.50 D or less, and an absolute value of a SOMO is 9 eV or more and 12 eV or less.

## Claims

### Claim 1

A glossy member, comprising:
a polymer substrate; and
a polymer fiber assembly disposed on the polymer substrate,
wherein:
the polymer fiber assembly consists of polymer fibers having fiber diameters of 0.05 μm to less than 1 μm and forming a film shape;
the polymer fibers are in contact with each other and are oriented in a given direction such that the polymer fibers have an orientation degree of at least 90%;
an absolute value of a difference between an average solubility parameter of a constituent material for the polymer substrate and an average solubility parameter of a polymer material of the polymer fibers is less than 5 (J/cm3)1/2; and
each of the polymer fibers contains a polymer material having a repeating unit, which has a dipole moment of 0 D to 3.50 D, and an absolute value of a SOMO of 9 eV to 12 eV.

### Claim 2 (depends on 1)

The glossy member according to claim 1, wherein the orientation degree of the polymer fibers is 95% or more.

### Claim 3 (depends on 1)

The glossy member according to claim 1, wherein the constituent material for the polymer substrate and at least part of the polymer material comprise the same material.

### Claim 4 (depends on 1)

The glossy member according to claim 1, wherein the absolute value of the SOMO is 9 eV to 10 eV.

### Claim 5 (depends on 1)

The glossy member according to claim 1, wherein:
the orientation degree of the polymer fibers is 95% or more; and
the constituent material for the polymer substrate and the polymer material comprise the same material.

### Claim 6 (depends on 1)

The glossy member according to claim 1, wherein the polymer material comprises a homopolymer.

### Claim 7 (depends on 1)

The glossy member according to claim 1, wherein the polymer fiber assembly has a metallic gloss.

### Claim 8 (depends on 1)

The glossy member according to claim 1, wherein the polymer fibers of the polymer fiber assembly are packed so as to form a gapless dense film.