JPS57207025A - Manufacture of laminated and stretched film - Google Patents

Manufacture of laminated and stretched film

Info

Publication number
JPS57207025A
JPS57207025A JP9264581A JP9264581A JPS57207025A JP S57207025 A JPS57207025 A JP S57207025A JP 9264581 A JP9264581 A JP 9264581A JP 9264581 A JP9264581 A JP 9264581A JP S57207025 A JPS57207025 A JP S57207025A
Authority
JP
Japan
Prior art keywords
layer
laminated
modified
temperature
film
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
JP9264581A
Other languages
Japanese (ja)
Inventor
Takashi Abe
Takehide Miyazaki
Kanji Kamiyama
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 Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
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 Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP9264581A priority Critical patent/JPS57207025A/en
Publication of JPS57207025A publication Critical patent/JPS57207025A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin

Landscapes

  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To improve substantially adhesion strength, by subjecting a laminated film of a polypropylene layer and a polyvinyl alcohol layer to a high temperature heat treatment at a temperature of at least the melting point of the laminated layers. CONSTITUTION:A polypropylene (PP) layer and a polyvinyl alcohol (PVA) layer are bonded with a modified PP to be laminated. The modified PP is a resin improved in the adhesive properly that is prepared by reacting a copolymer comprising PP or propylene as a major constituent with an unsaturated carboxylic acid or its anhydride. The resulting film is stretched at a temperature lower by at least 5 deg.C than the melting point (Tm) of the modified PP, and is then subjected to heat treatment at a temperature of at least Tm. Thus, a film that has been highly orientated and crystallized and exhibits enough characteristics such as mechanical strength, transparency, gas barrier property, etc. is produced.
JP9264581A 1981-06-16 1981-06-16 Manufacture of laminated and stretched film Pending JPS57207025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9264581A JPS57207025A (en) 1981-06-16 1981-06-16 Manufacture of laminated and stretched film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9264581A JPS57207025A (en) 1981-06-16 1981-06-16 Manufacture of laminated and stretched film

Publications (1)

Publication Number Publication Date
JPS57207025A true JPS57207025A (en) 1982-12-18

Family

ID=14060182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9264581A Pending JPS57207025A (en) 1981-06-16 1981-06-16 Manufacture of laminated and stretched film

Country Status (1)

Country Link
JP (1) JPS57207025A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60187538A (en) * 1984-02-08 1985-09-25 クアンタム　ケミカル　コーポレーション Biaxial oriented oxygen and moisture shielding film and manufacture thereof
JP2002052664A (en) * 2000-08-08 2002-02-19 Toyobo Co Ltd Multilayered resin film having excellent oxygen gas barrier properties and method for manufacturing the same
JP2002321319A (en) * 2001-04-26 2002-11-05 Toyobo Co Ltd Multilayered resin film having oxygen gas barrier property and manufacturing method therefor
WO2008139863A1 (en) * 2007-05-11 2008-11-20 The Nippon Synthetic Chemical Industry Co., Ltd. Method for production of multilayer stretch film

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5441972A (en) * 1977-07-12 1979-04-03 Mitsubishi Petrochem Co Ltd Preparation of laminated composite film of biaxially oriented propylene polymer having excellent gas barrier properties
JPS5522974A (en) * 1978-08-09 1980-02-19 Mitsubishi Petrochem Co Ltd Manufacturing of composite laminated layer biaxially oriented polypropylene film of excellent gas isolation property

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5441972A (en) * 1977-07-12 1979-04-03 Mitsubishi Petrochem Co Ltd Preparation of laminated composite film of biaxially oriented propylene polymer having excellent gas barrier properties
JPS5522974A (en) * 1978-08-09 1980-02-19 Mitsubishi Petrochem Co Ltd Manufacturing of composite laminated layer biaxially oriented polypropylene film of excellent gas isolation property

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60187538A (en) * 1984-02-08 1985-09-25 クアンタム　ケミカル　コーポレーション Biaxial oriented oxygen and moisture shielding film and manufacture thereof
JP2002052664A (en) * 2000-08-08 2002-02-19 Toyobo Co Ltd Multilayered resin film having excellent oxygen gas barrier properties and method for manufacturing the same
JP2002321319A (en) * 2001-04-26 2002-11-05 Toyobo Co Ltd Multilayered resin film having oxygen gas barrier property and manufacturing method therefor
JP4683251B2 (en) * 2001-04-26 2011-05-18 東洋紡績株式会社 Method for producing multilayer resin film having oxygen gas barrier property
WO2008139863A1 (en) * 2007-05-11 2008-11-20 The Nippon Synthetic Chemical Industry Co., Ltd. Method for production of multilayer stretch film
JP2008307889A (en) * 2007-05-11 2008-12-25 Nippon Synthetic Chem Ind Co Ltd:The Method of manufacturing multilayer stretch film

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