Degradable polymeric compositions and articles comprising same
US-2024425683-A1 · Dec 26, 2024 · US
Polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom
US9284440B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9284440-B2 |
| Application number | US-201214118646-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 2, 2012 |
| Priority date | Jul 8, 2011 |
| Publication date | Mar 15, 2016 |
| Grant date | Mar 15, 2016 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The instant invention provides a polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom. The polyethylene blend composition suitable for blown film according to the present invention comprises the melt blending product of: (a) less than or equal to 4 percent by weight of a low density polyethylene (LDPE) having a density in the range of from 0.915 to 0.935 g/cm 3 , and a melt index (I 2 ) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (M w /M n ) in the range of from 6 to 10; (b) 90 percent or greater by weight of a heterogenous linear low density polyethylene (hLLDPE) having a density in the range of from 0.917 to 0.950 g/cm 3 , and a melt index (I 2 ) in the range of from 0.1 to less than or equal to 5 g/10 minutes; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; and (e) optionally one or more antioxidants. When the polyethylene blend-composition is formed into a film via blown film process, the output rate is improved at least 6 percent relative to a similar linear low density polyethylene.
First claim
Opening claim text (preview).
We claim: 1. A polyethylene blend-composition suitable for blown film comprising the melt blending product of: from 0.5 to 4 percent by weight of a low density polyethylene having a density in the range of from 0.915 to 0.935 g/cm 3 , and a melt index (I 2 ) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (M W /M n ) in the range of from 6 to 10; 90 percent or greater by weight of a heterogeneous linear low density polyethylene having a density in the range of from 0.917 to 0.950 g/cm 3 , and a melt index (I 2 ) in the range of from 0.1 to less than or equal to 5 g/10 minutes; optionally a hydrotalcite based neutralizing agent; optionally one or more nucleating agents; and optionally one or more antioxidants. 2. The polyethylene blend composition of claim 1 , wherein when said polyethylene blend-composition is formed into a film via blown film process, the output rate is improved at least 6percent relative to a similar linear low density polyethylene. 3. The polyethylene blend composition of claim 1 , wherein the polyethylene blend composition has a peak at 32.7 ppm measured via 13 C NMR, indicating the presence of C 3 carbon of C 5 branch in the low density polyethylene. 4. The polyethylene blend composition of claim 1 , wherein when said polyethylene blend composition is formed into a film via blown film process, the total haze is improved by at least 15 percent relative to a blown film consisting essentially of a linear low density polyethylene. 5. The polyethylene blend composition of claim 1 , wherein when said polyethylene blend composition is formed into a film via blown film process, the gloss is improved by at least 10 percent relative to a blown film consisting essentially of a linear low density polyethylene. 6. A blown film comprising the polyethylene blend-composition of claim 1 . 7. An article comprising one or more blown films comprising the polyethylene blend-composition of claim 1 . 8. A container device comprising: (a) one or more substrates; and (b) one or more layers comprising one or more blown films comprising the polyethylene blend-composition of claim 1 .
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9284440B2 cover?
- The instant invention provides a polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom. The polyethylene blend composition suitable for blown film according to the present invention comprises the melt blending product of: (a) less than or equal to 4 percent by weight of a low density polyethylene (LDPE) having a density in the range of fr…
- Who is the assignee on this patent?
- Effler Jr Lawrence J, Savargaonkar Nilesh R, Demirors Mehmet, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification C08J5/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 15 2016 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).