A polyethylene blend-composition suitable for blown films, and films made therefrom
US-2015299440-A1 · Oct 22, 2015 · US
Sealant composition
US9834712B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9834712-B2 |
| Application number | US-201314432222-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 30, 2013 |
| Priority date | Oct 9, 2012 |
| Publication date | Dec 5, 2017 |
| Grant date | Dec 5, 2017 |
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Abstract
Official abstract text for this publication.
The instant invention provides a polyolefin composition suitable for sealant applications, sealant compositions, method of producing the same, and films and multilayer structures made therefrom. The polyolefin composition suitable for sealant applications according to the present invention comprises: an ethylene/α-olefin interpolymer composition having a Comonomer Distribution Constant (CDC) in the range of from 40 to 110, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range of from 1.01 to 2.0; a density in the range of from 0.908 to 0.922 g/cm 3 , a melt index (I 2 at 190° C./2.16 kg) in the range of from 0.5 to 5.0 g/10 minutes, a molecular weight distribution (defined as the weight average molecular weight divided by the number average molecular weight, M w /M n ) in the range of from 2.0 to 4.0, and tan delta at 0.1 radian/second, determined at 190° C., in the range of from 5 to 50.
First claim
Opening claim text (preview).
We claim: 1. A multilayer structure comprising: one or more film layers comprising a sealant composition comprising a polyolefin composition suitable for sealant applications comprising an ethylene/α-olefin interpolymer composition having a Comonomer Distribution Constant (CDC) in the range of from 40 to 110, vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range of from 1.01 to 2.0; a density in the range of from 0.908 to 0.922 g/cm 3 , a melt index (I 2 at 190° C. /2.16 kg) in a range of from 0.5 to 5.0 g/10 minutes, a molecular weight distribution (M w /M n ) in the range of from 2.0 to 4.0, and tan delta at 0.1 radian/second and 190° C. in the range of from 5 to 50; and one or more layers selected from the group consisting of one or more polyamides, one or more polyesters, one or more polyolefins different from the sealant composition and combinations thereof. 2. The multilayer structure of claim 1 , wherein the sealant composition further comprises one or more ethylene polymers, or one or more propylene based polymers, or combinations thereof. 3. A food packaging device comprising the multilayer layer structure of claim 1 . 4. The multilayer structure of claim 1 , comprising a three-layer coextruded blown film comprising the one or more film layers of the sealant composition. 5. The multilayer structure of claim 4 , comprising a laminate of the three-layer coextruded blown film and a polymer substrate. 6. The multilayer structure of claim 5 , wherein the polymer substrate comprises a polyethylene terephthalate (PET).
Assignees
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Classifications
comprising polyamides · CPC title
Food packaging · CPC title
with aliphatic 1-olefins containing one carbon-to-carbon double bond · CPC title
Polyethylene · CPC title
Copolymers of ethene with alpha-alkenes, e.g. EP rubbers · CPC title
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- What does patent US9834712B2 cover?
- The instant invention provides a polyolefin composition suitable for sealant applications, sealant compositions, method of producing the same, and films and multilayer structures made therefrom. The polyolefin composition suitable for sealant applications according to the present invention comprises: an ethylene/α-olefin interpolymer composition having a Comonomer Distribution Constant (CDC) in…
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C09K3/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 05 2017 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).