JPS55150316A - Process for melt-molding vinyl aclohol polymer - Google Patents
Process for melt-molding vinyl aclohol polymerInfo
- Publication number
- JPS55150316A JPS55150316A JP5923379A JP5923379A JPS55150316A JP S55150316 A JPS55150316 A JP S55150316A JP 5923379 A JP5923379 A JP 5923379A JP 5923379 A JP5923379 A JP 5923379A JP S55150316 A JPS55150316 A JP S55150316A
- Authority
- JP
- Japan
- Prior art keywords
- melt
- molding
- mhz
- alcohol polymer
- vinyl alcohol
- 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
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To prevent deterioration in molded articles during continuous molding and lowering in mechanical strength and an oxygen barrier property thereof, by drying a vinyl alcohol polymer containing voltatile matters by dielectric heating, and thereafter melt-molding the same.
CONSTITUTION: Vinyl alcohol polymer particles containing voltatile matters are dried by dielectric heating by a high frequency of 5 to 3,000 MHz, and thereafter the particles are subjected to melt-molding using an injection molding process, an extrusion molding process or the like. A preferable vinyl alcohol polymer is a saponified ethylene-vinyl acetate copolymer with 15 to 50 mol% ethylene and 90% or more of the saponidication degree of a vinyl acetate component. The forms of particles used may be those of particle, cake, powder and the like having a diameter of about 5mm or less. The high frequency in the dielectric heating is 5 to 30 MHz in a large-size heater and 30 to 80 MHz in a small-size heater and the heating time of several minutes to several tens minutes is sufficient.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5923379A JPS55150316A (en) | 1979-05-14 | 1979-05-14 | Process for melt-molding vinyl aclohol polymer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5923379A JPS55150316A (en) | 1979-05-14 | 1979-05-14 | Process for melt-molding vinyl aclohol polymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55150316A true JPS55150316A (en) | 1980-11-22 |
Family
ID=13107454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5923379A Pending JPS55150316A (en) | 1979-05-14 | 1979-05-14 | Process for melt-molding vinyl aclohol polymer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55150316A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60180813A (en) * | 1984-02-29 | 1985-09-14 | Kishimoto Akira | Manufacture of plastic molding |
| WO2012133252A1 (en) * | 2011-03-30 | 2012-10-04 | 株式会社クラレ | Process for producing ethylene/vinyl alcohol copolymer resin, ethylene/vinyl alcohol copolymer resin, and multilayer structure |
| JP2012211317A (en) * | 2011-03-30 | 2012-11-01 | Kuraray Co Ltd | Method for manufacturing ethylene-vinyl alcohol copolymer resin, ethylene-vinyl alcohol copolymer resin and multilayer structure |
| US9416208B2 (en) | 2011-03-30 | 2016-08-16 | Kuraray Co., Ltd. | Method for producing ethylene-vinyl alcohol copolymer resin, ethylene-vinyl alcohol copolymer resin, and laminate |
-
1979
- 1979-05-14 JP JP5923379A patent/JPS55150316A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60180813A (en) * | 1984-02-29 | 1985-09-14 | Kishimoto Akira | Manufacture of plastic molding |
| JPS6360694B2 (en) * | 1984-02-29 | 1988-11-25 | ||
| WO2012133252A1 (en) * | 2011-03-30 | 2012-10-04 | 株式会社クラレ | Process for producing ethylene/vinyl alcohol copolymer resin, ethylene/vinyl alcohol copolymer resin, and multilayer structure |
| JP2012211317A (en) * | 2011-03-30 | 2012-11-01 | Kuraray Co Ltd | Method for manufacturing ethylene-vinyl alcohol copolymer resin, ethylene-vinyl alcohol copolymer resin and multilayer structure |
| US8419999B2 (en) | 2011-03-30 | 2013-04-16 | Kuraray Co., Ltd. | Method for producing ethylene-vinyl alcohol copolymer resin, ethylene-vinyl alcohol copolymer resin, and multilayer structure |
| EP2692780A1 (en) * | 2011-03-30 | 2014-02-05 | Kuraray Co., Ltd. | Process for producing ethylene/vinyl alcohol copolymer resin, ethylene/vinyl alcohol copolymer resin, and multilayer structure |
| EP2692780A4 (en) * | 2011-03-30 | 2014-11-26 | Kuraray Co | Process for producing ethylene/vinyl alcohol copolymer resin, ethylene/vinyl alcohol copolymer resin, and multilayer structure |
| US9416208B2 (en) | 2011-03-30 | 2016-08-16 | Kuraray Co., Ltd. | Method for producing ethylene-vinyl alcohol copolymer resin, ethylene-vinyl alcohol copolymer resin, and laminate |
| CN106699944A (en) * | 2011-03-30 | 2017-05-24 | 可乐丽股份有限公司 | Method for producing ethylene-vinyl alcohol copolymer resin, ethylene-vinyl alcohol copolymer resin, and laminate |
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