Ethylene-vinyl alcohol resin composition, multilayer sheet, packaging material, and container
US-2015152256-A1 · Jun 4, 2015 · US
Modified ethylene-vinyl alcohol copolymer fibers
US11473218B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11473218-B2 |
| Application number | US-201816766895-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2018 |
| Priority date | Dec 26, 2017 |
| Publication date | Oct 18, 2022 |
| Grant date | Oct 18, 2022 |
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- Title
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Abstract
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A modified ethylene-vinyl alcohol copolymer fiber includes an ethylene-vinyl alcohol copolymer containing 0.1 to 10 mol % of a modified component and 5 to 55 mol % of ethylene, and has a crystallinity of 25% to 50%.
First claim
Opening claim text (preview).
The invention claimed is: 1. A modified ethylene-vinyl alcohol copolymer fiber comprising: a modified ethylene-vinyl alcohol copolymer containing 0.1 mol % to 10 mol % of the following structural unit (I), and 5 mol % to 55 mol % of ethylene, the modified ethylene-vinyl alcohol copolymer fiber having a crystallinity of 25% to 50%, wherein R′, R 2 , R 3 and R 4 represent a hydrogen atom, an aliphatic hydrocarbon group having 1 to 10 carbon atoms, an alicyclic hydrocarbon group having 3 to 10 carbon atoms, or an aromatic hydrocarbon group having 6 to 10 carbon atoms, R′, R 2 , R 3 and R 4 may be the same as or different from each other, R 3 and R 4 may be bonded to each other, and R′, R 2 , R 3 and R 4 may have a hydroxyl group, a carboxyl group, or a halogen atom. 2. The modified ethylene-vinyl alcohol copolymer fiber of claim 1 , having a crystallite size of 30 Å to 50 Å. 3. The modified ethylene-vinyl alcohol copolymer fiber of claim 1 , having a melting point of 60° C. to 160° C. 4. A fiber structure comprising the modified ethylene-vinyl alcohol copolymer fiber of claim 1 .
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Classifications
EVOH, i.e. ethylene vinyl alcohol copolymer · CPC title
leading to a crosslinking, either explicitly or inherently · CPC title
- D01F6/34Primary
comprising unsaturated alcohols, acetals or ketals as the major constituent · CPC title
Melt spinning methods {(D01D5/0023 takes precedence)} · CPC title
of polyalcohols, polyacetals or polyketals · CPC title
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Frequently asked questions
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- What does patent US11473218B2 cover?
- A modified ethylene-vinyl alcohol copolymer fiber includes an ethylene-vinyl alcohol copolymer containing 0.1 to 10 mol % of a modified component and 5 to 55 mol % of ethylene, and has a crystallinity of 25% to 50%.
- Who is the assignee on this patent?
- Kuraray Co
- What technology area does this patent fall under?
- Primary CPC classification D01F6/34. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Oct 18 2022 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).