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
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 (5)
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 |
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 |
JPWO2022220085A1 (en) * | 2021-04-12 | 2022-10-20 |
-
1987
- 1987-09-11 JP JP22884287A patent/JPS6474201A/en active Pending
Cited By (8)
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 |
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 |
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 |
KR20230170681A (en) | 2021-04-12 | 2023-12-19 | 주식회사 쿠라레 | Method for producing acetalized product of ethylene vinyl alcohol copolymer |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Butler et al. | Mechanical and barrier properties of edible chitosan films as affected by composition and storage | |
US6174949B1 (en) | Resin composition, process for preparing the same, and laminate containing layer of said resin composition | |
KR101158945B1 (en) | Amphoteric grafted barrier materials | |
US3734819A (en) | Ethylene-vinyl acetate emulsion adhesive | |
ES478736A1 (en) | Polyvinyl alcohol pellets containing a plasticizer, and method for their preparation. | |
US3153009A (en) | Condensation process for polyvinyl acetals | |
AU7021487A (en) | Rapid dissolving polymer compositions and uses therefor | |
JPS6474201A (en) | Manufacture of acetalized ethylene/vinyl alcohol copolymer | |
ES8304176A1 (en) | Polyvinyl alcohol composition, its preparation process, its use. | |
JPH0776643A (en) | Barrier blend and food package film containing same | |
US4663235A (en) | Reduction in the adhesion to glass of thermoplastic, plasticized polyvinylbutyral molding compositions | |
KR880012682A (en) | Polyolefin film | |
CA2183578A1 (en) | Acrylate Blends and Laminates Using Acrylate Blends | |
RU94027683A (en) | Polymer molded article and method for its production | |
JP2721542B2 (en) | Ethylene-vinyl alcohol random copolymer, molded product and laminate | |
JPS6232214B2 (en) | ||
GB1420452A (en) | Polymeric compositions | |
EP0381476A3 (en) | Treatment of compositions containing water and organic oxygentates | |
JP2019011464A (en) | Ethylene-vinyl alcohol copolymer composition, pellet comprising the same and multilayer structure using the same | |
KR940009283A (en) | Resin composition containing the resin mixed with each other and the resin mixed with each other obtained by this method | |
US3922367A (en) | Preparation for imparting smoke to meat products | |
JPS54155296A (en) | Preparation of water-soluble polymer | |
JPH08283428A (en) | Ethylene-vinyl acetate copolymer saponified product film and its production | |
JPS5767609A (en) | Preparation of emulsion composition of polyvinyl acetate type | |
CA2030359A1 (en) | Plasticizer composition, plasticized polyvinyl butyral and interlayer thereof |