Polyethylene compositions, and articles made therefrom
US-2019161602-A1 · May 30, 2019 · US
Polyethylene compositions, and articles made therefrom
US10858505B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10858505-B2 |
| Application number | US-201716321139-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 26, 2017 |
| Priority date | Sep 22, 2016 |
| Publication date | Dec 8, 2020 |
| Grant date | Dec 8, 2020 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The invention provides ethylene-based composition comprising a blend of an ultra-high molecular weight polyethylene having an intrinsic viscosity from 5 to 50 deciliters/gram; a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and, optionally, a fluoropolymer.
First claim
Opening claim text (preview).
We claim: 1. An ethylene-based composition comprising a blend of: an ultra-high molecular weight polyethylene having an intrinsic viscosity from 5 to 50 deciliters/gram, a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.905 g/cc, and optionally, a fluoropolymer. 2. The composition of claim 1 , wherein the ultra-high molecular weight polyethylene has a density of from 0.915 to 0.940 g/cc. 3. The composition of claim 1 , wherein the ultra-high molecular weight polyethylene has a weight average molecular weight of greater than 1,000,000 g/mole. 4. The composition of claim 1 , wherein the blend has a high load melt index (I 21 ) from 0.1 to 40 g/10 min. 5. The composition of claim 1 , wherein the blend has a high load melt index (I 21 ) from 0.1 to 20 g/10 min. 6. The composition of claim 1 wherein the thermoplastic polyolefin elastomer is selected from the group consisting of ethylene/alpha-olefin interpolymers, ethylene/alpha-olefin multi-block interpolymers, and combinations thereof. 7. The composition of claim 1 , wherein the blend further comprises a fluoropolymer that has a melt flow index (265° C.; 5.0 kg) from 2.0 to 20.0 g/10 min. 8. The composition of claim 1 , wherein the blend further comprises a fluoropolymer that is present in an amount from 50 to 5,000 ppm, based on the weight of the composition. 9. A shaped article comprising at least one component formed from the composition of claim 1 . 10. The article of claim 9 , wherein the shaped article is a geomembrane.
Assignees
Inventors
Classifications
used for pipes · CPC title
- C08L23/06Primary
Polyethylene · CPC title
containing three or more polymers in a blend · CPC title
Elastomeric} ethylene-propylene or ethylene-propylene-diene copolymers {, e.g. EPR and EPDM rubbers · CPC title
Polyethylene · CPC title
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- What does patent US10858505B2 cover?
- The invention provides ethylene-based composition comprising a blend of an ultra-high molecular weight polyethylene having an intrinsic viscosity from 5 to 50 deciliters/gram; a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and, optionally, a fluoropolymer.
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C08L23/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 08 2020 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).