Plexifilamentary Sheets
US-2015368416-A1 · Dec 24, 2015 · US
Polyethylene compositions for the preparation of tapes, fibers, or monofilaments
US2018298524A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018298524-A1 |
| Application number | US-201615766156-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 7, 2016 |
| Priority date | Dec 10, 2015 |
| Publication date | Oct 18, 2018 |
| Grant date | — |
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Abstract
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A polyethylene tape, fiber, or monofilament comprising an ethylene/alpha-olefin polymer having a density greater than 0.945 g/cc, a melt index, I 2.16 , from 1.2 g/10 min to 2.0 g/10 min, a melt flow ratio, I 10 /I 2.16 , between 7.0 and 9.0, and a molecular weight distribution, Mw/Mn, of less than 5.5.
First claim
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1 . A polyethylene tape, fiber, or monofilament comprising an ethylene/alpha-olefin polymer having: a density greater than 0.945 g/cc; a melt index, I 2.16 , from 1.2 g/10 min to 2.0 g/10 min; a melt flow ratio, I 10 /I 2.16 , between 7.0 and 9.0; and a molecular weight distribution, Mw/Mn, of less than 5.5. 2 . The tape, fiber, or monofilament of claim 1 , wherein the alpha-olefin comonomer is a C 4 -C 10 alpha-olefin. 3 . The tape, fiber, or monofilament of claim 2 , wherein the alpha-olefin comonomer is selected from the group consisting of butene, hexene, and octene. 4 . The tape, fiber, or monofilament of claim 1 , wherein the ethylene/alpha-olefin polymer has a unimodal molecular weight distribution as determined by gel permeation chromatography. 5 . The tape, fiber, or monofilament of claim 1 , wherein the ethylene/alpha-olefin polymer is made in the presence of one or more Ziegler-Natta catalyst systems. 6 . The tape, fiber, or monofilament of claim 1 , wherein the ethylene/alpha-olefin polymer is made in a solution reactor. 7 . The tape, fiber, or monofilament of claim 1 , wherein when the tape, fiber, or monofilament is machine direction oriented at a stretch ratio of at least 1:5, the tape, fiber, or monofilament exhibits the following properties: a young's modulus, as measured according to EN ISO 527-3, of greater than 2,500 MPa; and a tensile energy, as measured according to ASTM 527-3, of greater than 1.0 Joules. 8 . A knitted article formed from a machine direction-oriented polyethylene tape, fiber, or monofilament comprising an ethylene/alpha-olefin polymer having: a density greater than 0.945 g/cc; a melt index, I 2.16 , from 1.2 g/10 min to 2.0 g/10 min; a melt flow ratio, I 10 /I 2.16 , between 7.0 and 9.0; and a molecular weight distribution, Mw/Mn, of less than 5.5. 9 . A woven article formed from a machine direction-oriented polyethylene tape, fiber, or monofilament comprising an ethylene/alpha-olefin polymer having: a density greater than 0.945 g/cc; a melt index, I 2.16 , from 1.2 g/10 min to 2.0 g/10 min; a melt flow ratio, I 10 /I 2.16 , between 7.0 and 9.0; and a molecular weight distribution, Mw/Mn, of less than 5.5.
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- What does patent US2018298524A1 cover?
- A polyethylene tape, fiber, or monofilament comprising an ethylene/alpha-olefin polymer having a density greater than 0.945 g/cc, a melt index, I 2.16 , from 1.2 g/10 min to 2.0 g/10 min, a melt flow ratio, I 10 /I 2.16 , between 7.0 and 9.0, and a molecular weight distribution, Mw/Mn, of less than 5.5.
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- 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 Oct 18 2018 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).