JPS54155272A - Highly oriented film by cold drawing and its production - Google Patents
Highly oriented film by cold drawing and its productionInfo
- Publication number
- JPS54155272A JPS54155272A JP6387378A JP6387378A JPS54155272A JP S54155272 A JPS54155272 A JP S54155272A JP 6387378 A JP6387378 A JP 6387378A JP 6387378 A JP6387378 A JP 6387378A JP S54155272 A JPS54155272 A JP S54155272A
- Authority
- JP
- Japan
- Prior art keywords
- copolymer
- vinyl acetate
- less
- highly oriented
- polyamide
- 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.)
- Granted
Links
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
PURPOSE: To obtain a highly oriented flushing film suitable for agricultural and packaging materials, having high strength, by extruding a composition consisting of ethylene-vinyl acetate copolymer, α-olefin copolymer, and polyamide, from a die, followed by orientation.
CONSTITUTION: A composition consisting of A) ethylene-vinyl acetate copolymer, B) a thermoplastic elastomer made of α-olefin copolymer, and C) polyamide is mixed to give a molten blend. The blend is extruded from a die, guenched by a liquid refrigerant, and set to make a raw film, which is heated up to not more than 100°C and oriented in a cold state at 20W100°C at an area draw ratio of 5W30:1 and at a cross direction draw ratio of 2W7:1 to have a reflectance of diffused reflection not less than 30%. A copolymer of A having less than 30 wt. % of vinyl acetate group degrades orientation in a cold state, film strength, and thermal shrinkage, and a copolymer of A having not less than 30 wt. of vinyl acetate group reduces stretchability.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6387378A JPS54155272A (en) | 1978-05-30 | 1978-05-30 | Highly oriented film by cold drawing and its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6387378A JPS54155272A (en) | 1978-05-30 | 1978-05-30 | Highly oriented film by cold drawing and its production |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54155272A true JPS54155272A (en) | 1979-12-07 |
JPS6220017B2 JPS6220017B2 (en) | 1987-05-02 |
Family
ID=13241843
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6387378A Granted JPS54155272A (en) | 1978-05-30 | 1978-05-30 | Highly oriented film by cold drawing and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54155272A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1095963A1 (en) * | 1999-10-29 | 2001-05-02 | Pati SpA | Transparent synthetic film suitable to be used as a cover in agriculture, particularly in greenhouse cultivation, and relative production method |
JP2002121299A (en) * | 2000-10-11 | 2002-04-23 | Asahi Kasei Corp | Polyester film and method for manufacturing the same |
WO2009060480A1 (en) * | 2007-11-06 | 2009-05-14 | Agriplast S.R.L. | Covering film for use in agriculture with heat insulation effect and pesticide barrier effect, with one or more polyamide layers, and corresponding production method |
-
1978
- 1978-05-30 JP JP6387378A patent/JPS54155272A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1095963A1 (en) * | 1999-10-29 | 2001-05-02 | Pati SpA | Transparent synthetic film suitable to be used as a cover in agriculture, particularly in greenhouse cultivation, and relative production method |
JP2002121299A (en) * | 2000-10-11 | 2002-04-23 | Asahi Kasei Corp | Polyester film and method for manufacturing the same |
WO2009060480A1 (en) * | 2007-11-06 | 2009-05-14 | Agriplast S.R.L. | Covering film for use in agriculture with heat insulation effect and pesticide barrier effect, with one or more polyamide layers, and corresponding production method |
Also Published As
Publication number | Publication date |
---|---|
JPS6220017B2 (en) | 1987-05-02 |
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