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Ethylene copolymer, composition including the copolymer, and shaped article and film or sheet formed from the ethylene copolymer or the composition
US9109065B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9109065-B2 |
| Application number | US-201214350056-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 12, 2012 |
| Priority date | Oct 13, 2011 |
| Publication date | Aug 18, 2015 |
| Grant date | Aug 18, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
Objects of the invention are to obtain ethylene copolymers which have excellent rubber elasticity even without being crosslinked and maintain sufficient shaping processability even when filled with significantly large amounts of additives, and to provide methods for producing with good productivity films or sheets having flexibility and high stretchability. The invention is directed to an ethylene copolymer (X) including structural units derived from a component [A], a component [B] and a component [C] which are ethylene [A], an α-olefin of 3 to 20 carbon atoms [B] and a polyene and/or a cyclic olefin [C]. In the ethylene copolymer, (1) the content of structural units derived from the ethylene [A] is in the range of 50 to 90 mol % in 100 mol % of all the structural units in the copolymer (X); (2) the content of structural units derived from at least one polyene and/or the cyclic olefin [C] is in the range of 1.0 to 5.0 mol % in 100 mol % of all the structural units in the copolymer (X); and (3) the intrinsic viscosity [η] of the ethylene copolymer (X) as measured at 135° C. in a decalin solution is in the range of 7.8 to 13.0 dl/g. The invention also concerns with a composition including the ethylene copolymer (X), and uses.
First claim
Opening claim text (preview).
The invention claimed is: 1. An ethylene copolymer (X) , which satisfies the following (i) and (ii), comprising structural units derived from a component [A], a component [B] and a component [C] which are ethylene [A], an α-olefin of 3 to 20 carbon atoms [B] and a polyene and/or a cyclic olefin [C], (1) the content of structural units derived from the ethylene [A] being in the range of 50 to 90 mol% in 100 mol% of all the structural units in the copolymer (X); (2) the content of…
Assignees
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Classifications
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C08F210/18Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9109065B2 cover?
- Objects of the invention are to obtain ethylene copolymers which have excellent rubber elasticity even without being crosslinked and maintain sufficient shaping processability even when filled with significantly large amounts of additives, and to provide methods for producing with good productivity films or sheets having flexibility and high stretchability. The invention is directed to an ethyl…
- Who is the assignee on this patent?
- Mitsui Chemicals Inc
- What technology area does this patent fall under?
- Primary CPC classification C08F210/18. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 18 2015 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).