Ethylene-vinyl alcohol copolymer resin composition, and multilayer structure
US-2019292359-A1 · Sep 26, 2019 · US
Resin composition, melt-forming material, multilayer structure, and liquid packaging material
US11161973B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11161973-B2 |
| Application number | US-202016834045-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 30, 2020 |
| Priority date | Nov 22, 2017 |
| Publication date | Nov 2, 2021 |
| Grant date | Nov 2, 2021 |
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Abstract
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A resin composition contains: (A) an ethylene-vinyl alcohol copolymer; (B) a styrene thermoplastic elastomer; and (C) a sorbic acid ester; wherein the sorbic acid ester (C) is present in an amount of 0.00001 to 10 ppm based on the weight of the resin composition. The resin composition is resistant to coloration.
First claim
Opening claim text (preview).
The invention claimed is: 1. A resin composition comprising: (A) an ethylene-vinyl alcohol copolymer; (B) a styrene thermoplastic elastomer; and (C) a sorbic acid ester; wherein the sorbic acid ester (C) is present in an amount of 0.00001 to 10 ppm based on a weight of the resin composition. 2. The resin composition according to claim 1 , wherein the ethylene-vinyl alcohol copolymer (A) and the styrene thermoplastic elastomer (B) are present in a weight ratio (A)/(B) of 1/99 to 99/1. 3. The resin composition according to claim 1 , wherein the styrene thermoplastic elastomer (B) is a block copolymer having a hard segment and a soft segment. 4. A melt-forming material comprising the resin composition according to claim 1 . 5. A multilayer structure comprising a layer that comprises the resin composition according to claim 1 . 6. A liquid packaging material comprising the multilayer structure according to claim 5 .
Assignees
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Classifications
comprising polycycloolefins · CPC title
- B32B27/302Primary
comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers · CPC title
Bottles · CPC title
Tubular articles, e.g. hoses, pipes · CPC title
characterised by the use of special additives · CPC title
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Frequently asked questions
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- What does patent US11161973B2 cover?
- A resin composition contains: (A) an ethylene-vinyl alcohol copolymer; (B) a styrene thermoplastic elastomer; and (C) a sorbic acid ester; wherein the sorbic acid ester (C) is present in an amount of 0.00001 to 10 ppm based on the weight of the resin composition. The resin composition is resistant to coloration.
- Who is the assignee on this patent?
- Mitsubishi Chem Corp
- What technology area does this patent fall under?
- Primary CPC classification B32B27/302. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 02 2021 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).