JPS561242A - Film for evacuated casting - Google Patents

Film for evacuated casting

Info

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
Application number
JP7459879A
Other languages
Japanese (ja)
Inventor
Takao Yazaki
Masataka Noro
Shiro Ueki
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.)
Mitsubishi Petrochemical Co Ltd
Original Assignee
Mitsubishi Petrochemical Co 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 Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP7459879A priority Critical patent/JPS561242A/en
Publication of JPS561242A publication Critical patent/JPS561242A/en
Pending legal-status Critical Current

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
JP7459879A 1979-06-15 1979-06-15 Film for evacuated casting Pending JPS561242A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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