Plexifilamentary Sheets
US-2015368416-A1 · Dec 24, 2015 · US
Flash Spun Plexifilamentary Strands and Sheets
US2017009381A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017009381-A1 |
| Application number | US-201514796350-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 10, 2015 |
| Priority date | Jul 10, 2015 |
| Publication date | Jan 12, 2017 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
A flash-spun plexifilamentary fiber strand having a BET surface area of less than 12 m 2 /g, a crush value of at least 0.9 mm/g wherein said fiber strand comprises predominantly fibers formed from polyethylene, said fibers having a total crystallinity index of less than 55%, and sheets made thereof.
First claim
Opening claim text (preview).
We claim: 1 . A flash-spun plexifilamentary fiber strand comprising fibers having a total crystallinity index of less than or equal to 55%. 2 . The flash-spun plexifilamentary fiber strand of claim 1 having a BET surface area of less than or equal to 12 m 2 /g, a crush value of greater than or equal to 0.9 mm/g. 3 . The flash-spun plexifilamentary fiber strand of claim 2 wherein said fiber strand comprises predominantly fibers formed from polyethylene. 4 . The fiber strand of claim 3 wherein said fibers have a total crystallinity index of less than or equal to 52%. 5 . The fiber strand of claim 3 wherein the fibers have a monoclinic and orthorhombic structure as determined by X-ray characterization and a crystallinity index of the monoclinic structures is equal or higher than 1%. 6 . A consolidated sheet made from a fiber strand according to claim 1 7 . A multilayer structure comprising a multiplicity of two or more sheets or strands wherein at least one sheet is a sheet according to claim 6 . 8 . A thermally or mechanically consolidated sheet made from a fiber strand according to claim 1 9 . A multilayer structure comprising a multiplicity of two or more sheets or strands wherein at least one sheet is a sheet according to claim 8 .
Assignees
Inventors
Classifications
Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected (finishing D02J) · CPC title
- D01F6/04Primary
from polyolefins · CPC title
Flash-spinning · CPC title
polyethylene · CPC title
forming webs during fibre formation, e.g. flash-spinning · CPC title
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Frequently asked questions
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- What does patent US2017009381A1 cover?
- A flash-spun plexifilamentary fiber strand having a BET surface area of less than 12 m 2 /g, a crush value of at least 0.9 mm/g wherein said fiber strand comprises predominantly fibers formed from polyethylene, said fibers having a total crystallinity index of less than 55%, and sheets made thereof.
- Who is the assignee on this patent?
- Du Pont
- What technology area does this patent fall under?
- Primary CPC classification D01F6/04. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Thu Jan 12 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).