JPS6474201A - Manufacture of acetalized ethylene/vinyl alcohol copolymer - Google Patents
Manufacture of acetalized ethylene/vinyl alcohol copolymerInfo
- Publication number
- JPS6474201A JPS6474201A JP22884287A JP22884287A JPS6474201A JP S6474201 A JPS6474201 A JP S6474201A JP 22884287 A JP22884287 A JP 22884287A JP 22884287 A JP22884287 A JP 22884287A JP S6474201 A JPS6474201 A JP S6474201A
- Authority
- JP
- Japan
- Prior art keywords
- vinyl alcohol
- ethylene
- alcohol copolymer
- acetalized
- acetalization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE:To produce the title acetalized copolymer which is improved in thermoformability and can be melt-molded, by dissolving homogeneously an ethylene/vinyl alcohol copolymer in a solvent to a prescribed concentration or below, and adding an aldehyde thereto to cause acetalization. CONSTITUTION:An ethylene/vinyl alcohol copolymer (hereinafter abbreviated to EVOH) having an ethylene content of 20-60mol.% is homogeneously dissolved in a solvent (e.g., an alcohol/water mixed solvent so that the concentration may be 40wt.% or below. then, an aldehyde (e.g., formalin) is added to the solution, and acetalization is carried out to give acetalized EVOH wherein the degree of acetalization is 1-15mol.%. This EVOH can be melt-molded to produce easily films, sheets, bottles, and the like which are suitable, for example, for packaging of foods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22884287A JPS6474201A (en) | 1987-09-11 | 1987-09-11 | Manufacture of acetalized ethylene/vinyl alcohol copolymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22884287A JPS6474201A (en) | 1987-09-11 | 1987-09-11 | Manufacture of acetalized ethylene/vinyl alcohol copolymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6474201A true JPS6474201A (en) | 1989-03-20 |
Family
ID=16882718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22884287A Pending JPS6474201A (en) | 1987-09-11 | 1987-09-11 | Manufacture of acetalized ethylene/vinyl alcohol copolymer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6474201A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003051989A1 (en) * | 2001-12-17 | 2003-06-26 | Ivan Vasilev Georgiev | Polymer composition and a method for producing packing materials with controllable decomposition |
| CN105579525A (en) * | 2013-10-02 | 2016-05-11 | 株式会社可乐丽 | Resin composition, resin molded body, and multi-layer structure |
| US20220184930A1 (en) * | 2019-03-28 | 2022-06-16 | Kuraray Co., Ltd. | Modified vinyl acetal resin for interlayer film of laminated glass |
| JPWO2022220085A1 (en) * | 2021-04-12 | 2022-10-20 | ||
| WO2022220086A1 (en) | 2021-04-12 | 2022-10-20 | 株式会社クラレ | Method for producing product of acetalization of ethylene/vinyl alcohol copolymer |
| WO2024085035A1 (en) * | 2022-10-17 | 2024-04-25 | 株式会社クラレ | Acetalization product of ethylenevinyl alcohol copolymer, composition containing said acetalization product, and barrier material |
-
1987
- 1987-09-11 JP JP22884287A patent/JPS6474201A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003051989A1 (en) * | 2001-12-17 | 2003-06-26 | Ivan Vasilev Georgiev | Polymer composition and a method for producing packing materials with controllable decomposition |
| CN105579525A (en) * | 2013-10-02 | 2016-05-11 | 株式会社可乐丽 | Resin composition, resin molded body, and multi-layer structure |
| CN105579525B (en) * | 2013-10-02 | 2018-05-04 | 株式会社可乐丽 | Resin combination, resin-formed body and multilayer structure making |
| US20220184930A1 (en) * | 2019-03-28 | 2022-06-16 | Kuraray Co., Ltd. | Modified vinyl acetal resin for interlayer film of laminated glass |
| US12214572B2 (en) * | 2019-03-28 | 2025-02-04 | Kuraray Co., Ltd. | Modified vinyl acetal resin for interlayer film of laminated glass |
| JPWO2022220085A1 (en) * | 2021-04-12 | 2022-10-20 | ||
| WO2022220085A1 (en) * | 2021-04-12 | 2022-10-20 | 株式会社クラレ | Product of acetalization of ethylene/vinyl alcohol copolymer and composition containing said acetalization product |
| WO2022220086A1 (en) | 2021-04-12 | 2022-10-20 | 株式会社クラレ | Method for producing product of acetalization of ethylene/vinyl alcohol copolymer |
| JP2023143915A (en) * | 2021-04-12 | 2023-10-06 | 株式会社クラレ | Acetalized product of ethylene vinyl alcohol copolymer and composition containing the acetalized product |
| KR20230170681A (en) | 2021-04-12 | 2023-12-19 | 주식회사 쿠라레 | Method for producing acetalized product of ethylene vinyl alcohol copolymer |
| TWI907689B (en) * | 2021-04-12 | 2025-12-11 | 日商可樂麗股份有限公司 | Ethylaldehyde of ethylene-vinyl alcohol copolymer and compositions comprising the acetal. |
| WO2024085035A1 (en) * | 2022-10-17 | 2024-04-25 | 株式会社クラレ | Acetalization product of ethylenevinyl alcohol copolymer, composition containing said acetalization product, and barrier material |
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