Polytetrafluoroethylene porous fiber and manufacturing and modifying process thereof
US-2024318358-A1 · Sep 26, 2024 · US
Fiber for artificial hair and hair accessory product
US12415917B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12415917-B2 |
| Application number | US-201916957466-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 18, 2019 |
| Priority date | Mar 20, 2018 |
| Publication date | Sep 16, 2025 |
| Grant date | Sep 16, 2025 |
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- Title
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Abstract
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A fiber for artificial hair, the fiber containing 50 parts by mass or more and 95 parts by mass or less of a vinyl chloride-based resin and 5 parts by mass or more and 50 parts by mass or less of a vinyl-based copolymer resin, in which the vinyl-based copolymer resin contains 60% by mass or more and less than 70% by mass of a styrene-based monomer unit and more than 30% by mass and 40% by mass or less of an acrylonitrile-based monomer unit on the basis of the entire vinyl-based copolymer resin.
First claim
Opening claim text (preview).
The invention claimed is: 1. A fiber for artificial hair, the fiber comprising 55 parts by mass or more and 90 parts by mass or less of a vinyl chloride-based resin and 10 parts by mass or more and 45 parts by mass or less of a vinyl-based copolymer resin with respect to 100 parts by mass of the total of the vinyl chloride-based resin and the vinyl-based copolymer resin, wherein the vinyl-based copolymer resin contains 62% by mass or more and 68% by mass or less of a styrene-based monomer unit and 32% by mass or more and 38% by mass or less of an acrylonitrile-based monomer unit on the basis of the entire vinyl-based copolymer resin. 2. The fiber for artificial hair according to claim 1 , wherein the styrene-based monomer unit includes a styrene monomer unit. 3. The fiber for artificial hair according to claim 1 , wherein a viscosity-average polymerization degree of the vinyl chloride-based resin is 450 or more and 1700 or less. 4. A hair accessory product comprising the fiber for artificial hair according to claim 1 . 5. The fiber for artificial hair according to claim 1 , comprising 55 parts by mass or more and 75 parts by mass or less of the vinyl chloride-based resin. 6. The fiber for artificial hair according to claim 1 , comprising 60 parts by mass or more and 70 parts by mass or less of the vinyl chloride-based resin. 7. The fiber for artificial hair according to claim 1 , comprising 55 parts by mass or more and 80 parts by mass or less of the vinyl chloride-based resin. 8. The fiber for artificial hair according to claim 1 , comprising 20 parts by mass or more and 45 parts by mass or less of the vinyl-based copolymer resin. 9. The fiber for artificial hair according to claim 1 , comprising 35 parts by mass or more and 45 parts by mass or less of the vinyl-based copolymer resin. 10. The fiber for artificial hair according to claim 1 , comprising 25 parts by mass or more and 40 parts by mass or less of the vinyl-based copolymer resin. 11. The fiber for artificial hair according to claim 1 , wherein the vinyl-based copolymer resin contains more than 32% by mass and 35% by mass or less of the acrylonitrile-based monomer unit. 12. The fiber for artificial hair according to claim 1 , wherein the acrylonitrile-based monomer unit includes an acrylonitrile monomer unit.
Assignees
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Classifications
Heat-responsive characteristics · CPC title
Wigs · CPC title
of polymers of cyclic compounds with one carbon-to-carbon double bond in the side chain · CPC title
of polymers of unsaturated nitriles · CPC title
- D01F6/48Primary
of polymers of halogenated hydrocarbons · CPC title
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Frequently asked questions
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- What does patent US12415917B2 cover?
- A fiber for artificial hair, the fiber containing 50 parts by mass or more and 95 parts by mass or less of a vinyl chloride-based resin and 5 parts by mass or more and 50 parts by mass or less of a vinyl-based copolymer resin, in which the vinyl-based copolymer resin contains 60% by mass or more and less than 70% by mass of a styrene-based monomer unit and more than 30% by mass and 40% by mass …
- Who is the assignee on this patent?
- Denka Company Ltd
- What technology area does this patent fall under?
- Primary CPC classification D01F6/48. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Sep 16 2025 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).