JPS561242A - Film for evacuated casting - Google Patents
Film for evacuated castingInfo
- Publication number
- JPS561242A JPS561242A JP7459879A JP7459879A JPS561242A JP S561242 A JPS561242 A JP S561242A JP 7459879 A JP7459879 A JP 7459879A JP 7459879 A JP7459879 A JP 7459879A JP S561242 A JPS561242 A JP S561242A
- Authority
- JP
- Japan
- Prior art keywords
- kinds
- mixture
- layer composed
- film
- ethylene
- 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
- Mold Materials And Core Materials (AREA)
- Laminated Bodies (AREA)
Abstract
PURPOSE: To improve the suitability to deep drawing of the captioned film and eliminate the evolution of harmful gas by laminating the layer composed of the mixture of one or two or more kinds of PE, etc. and the layer composed of the mixture of one or two or more kinds of ethylene-vinyl monomer copolymer resins.
CONSTITUTION: In the film used for an evacuated casting method, the layer composed of the mixture of one or two or more kinds among polyethylene, ethylene-α- olefin-copolymer resins and the layer composed of the mixture of one or two or more kinds among the copolyer resins of mainly ethylene and vinyl monomers such as vinyl acetate are laminated. Namely, as a result of laminating the plural resin layers provided with a difference in flow initiation temperature at the heating, the melt tension of the laminated film is maintained and intensified by the existence of the layer of much lower fluidity even after the layer which starts flowing at a low temperature when heated starts flowing, and this considerably improves its heat-formability, particularly suitability to deep drawing and eliminates the evolution of harmful gas unlike with conventional products.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7459879A JPS561242A (en) | 1979-06-15 | 1979-06-15 | Film for evacuated casting |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7459879A JPS561242A (en) | 1979-06-15 | 1979-06-15 | Film for evacuated casting |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS561242A true JPS561242A (en) | 1981-01-08 |
Family
ID=13551741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7459879A Pending JPS561242A (en) | 1979-06-15 | 1979-06-15 | Film for evacuated casting |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS561242A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020262675A1 (en) * | 2019-06-27 | 2020-12-30 | 住友ベークライト株式会社 | Multilayer film and package |
-
1979
- 1979-06-15 JP JP7459879A patent/JPS561242A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020262675A1 (en) * | 2019-06-27 | 2020-12-30 | 住友ベークライト株式会社 | Multilayer film and package |
JPWO2020262675A1 (en) * | 2019-06-27 | 2021-10-28 | 住友ベークライト株式会社 | Multilayer film and packaging |
JP2021169216A (en) * | 2019-06-27 | 2021-10-28 | 住友ベークライト株式会社 | Multilayer film and package |
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