JPS56139536A - Treatment of laminated film - Google Patents

Treatment of laminated film

Info

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
Application number
JP4376480A
Other languages
Japanese (ja)
Inventor
Shigeyuki Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daicel Corp
Original Assignee
Daicel Corp
Daicel Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daicel Corp, Daicel Chemical Industries Ltd filed Critical Daicel Corp
Priority to JP4376480A priority Critical patent/JPS56139536A/en
Publication of JPS56139536A publication Critical patent/JPS56139536A/en
Pending legal-status Critical Current

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
JP4376480A 1980-04-02 1980-04-02 Treatment of laminated film Pending JPS56139536A (en)

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)

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