JPS56139536A - Treatment of laminated film - Google Patents
Treatment of laminated filmInfo
- Publication number
- JPS56139536A JPS56139536A JP4376480A JP4376480A JPS56139536A JP S56139536 A JPS56139536 A JP S56139536A JP 4376480 A JP4376480 A JP 4376480A JP 4376480 A JP4376480 A JP 4376480A JP S56139536 A JPS56139536 A JP S56139536A
- Authority
- JP
- Japan
- Prior art keywords
- film
- steam
- vinylidene chloride
- thermoplastic resin
- chloride copolymer
- 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)
Abstract
PURPOSE: To recover barrier properties for oxygen, steam, etc. deteriorated when laminated, by immersing a laminated film obtd. by extruding a thermoplastic resin on the surface of a film coated with a vinylidene chloride copolymer, in hot water or steam.
CONSTITUTION: A molten thermoplastic resin is extruded on the surface of a film, of which either one or both sides are coated with a coating solution primarily composed of a vinylidene chloride copolymer contg. 85mol% or more vinylidene chloride. Then the laminated film obtd. is immersed in hot water at 30W100°C or in steam at 100W130°C, for a time ≥5min. The film to be used is pref. a biaxially oriented one, particularly a biaxially oriented polypropylene film, when it is a thermoplastic resin. The coating solution primarily composed of a vinylidene chloride copolymer is particularly pref. the one in an org. solvent, in view of oxygen and steam barrier properties.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4376480A JPS56139536A (en) | 1980-04-02 | 1980-04-02 | Treatment of laminated film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4376480A JPS56139536A (en) | 1980-04-02 | 1980-04-02 | Treatment of laminated film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56139536A true JPS56139536A (en) | 1981-10-31 |
Family
ID=12672816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4376480A Pending JPS56139536A (en) | 1980-04-02 | 1980-04-02 | Treatment of laminated film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56139536A (en) |
-
1980
- 1980-04-02 JP JP4376480A patent/JPS56139536A/en active Pending
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