JPS5630827A - Preparation of ethylene-vinyl alcoholic copolymer film - Google Patents

Preparation of ethylene-vinyl alcoholic copolymer film

Info

Publication number
JPS5630827A
JPS5630827A JP10756979A JP10756979A JPS5630827A JP S5630827 A JPS5630827 A JP S5630827A JP 10756979 A JP10756979 A JP 10756979A JP 10756979 A JP10756979 A JP 10756979A JP S5630827 A JPS5630827 A JP S5630827A
Authority
JP
Japan
Prior art keywords
ethylene
resistance
temperature
specific gravity
unoriented 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.)
Granted
Application number
JP10756979A
Other languages
Japanese (ja)
Other versions
JPS6026697B2 (en
Inventor
Yuji Kodera
Kyoichiro Igari
Shunji Miyake
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.)
Kuraray Co Ltd
Original Assignee
Kuraray 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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP54107569A priority Critical patent/JPS6026697B2/en
Priority to NZ192416A priority patent/NZ192416A/en
Priority to CA000342168A priority patent/CA1137726A/en
Priority to AU54007/79A priority patent/AU529160B2/en
Priority to US06/105,412 priority patent/US4294935A/en
Priority to GB7944078A priority patent/GB2039249B/en
Priority to FR7932044A priority patent/FR2445211A1/en
Priority to IT28443/79A priority patent/IT1129502B/en
Priority to DE2952509A priority patent/DE2952509C2/en
Publication of JPS5630827A publication Critical patent/JPS5630827A/en
Publication of JPS6026697B2 publication Critical patent/JPS6026697B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To improve resistance to permeation of gases, and resistance to water and the like by a method wherein multiaxial stretching an unoriented film of ethylene- vinyl alcoholic copolymer having specified values of ethylene content, saponification degree, specific gravity and water content is effected under a specified temperature.
CONSTITUTION: An unoriented film consisting of ethylene-vinyl alcohole copolymer, having 20W55mol% ethylene contents, 98mol% or more saponification degree and a specific gravity described by a formula (I) (wherein d is the specific gravity and X is the ethylene content in mol%), is manufactured. Biaxial or multiaxial stretching of the unoriented film is effected under a condition of 3.5% or less of water content and 50W130°C of temperature so that a magnification of area becomes 4W20 times. The water content of the unoriented film is preferable to be substantially zero. When the orientaive film after stretching is heat-treated under a condition of stretched or loose state, 100°C or more of temperature, and a temperature of the melting point thereof minus 10°C, if necessary, resistance to permeation of gases, resistance to water and the like can be improved furthermore.
COPYRIGHT: (C)1981,JPO&Japio
JP54107569A 1978-12-29 1979-08-22 Method for producing ethylene-vinyl alcohol copolymer film Expired JPS6026697B2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP54107569A JPS6026697B2 (en) 1979-08-22 1979-08-22 Method for producing ethylene-vinyl alcohol copolymer film
NZ192416A NZ192416A (en) 1978-12-29 1979-12-17 Ethylene-vinyl alcohol copolymer film which can be biaxially or multiaxially stretched
CA000342168A CA1137726A (en) 1978-12-29 1979-12-18 Method of producing ethylene-vinyl alcohol copolymer film
AU54007/79A AU529160B2 (en) 1978-12-29 1979-12-19 Producing ethylene-vinyl alcohol copoylmer film
US06/105,412 US4294935A (en) 1978-12-29 1979-12-19 Method of producing ethylene-vinyl alcohol copolymer film
GB7944078A GB2039249B (en) 1978-12-29 1979-12-21 Stretching ethylene-vinyl-alcohol copolymer film
FR7932044A FR2445211A1 (en) 1978-12-29 1979-12-28 PROCESS FOR PRODUCING A FILM OF ETHYLENE AND VINYL ALCOHOL COPOLYMER
IT28443/79A IT1129502B (en) 1978-12-29 1979-12-28 PROCEDURE FOR THE PRODUCTION OF ETHYLENE VINYL ALCOHOL COPOLYMER FILMS
DE2952509A DE2952509C2 (en) 1978-12-29 1979-12-28 Process for producing an ethylene / vinyl alcohol copolymer film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54107569A JPS6026697B2 (en) 1979-08-22 1979-08-22 Method for producing ethylene-vinyl alcohol copolymer film

Publications (2)

Publication Number Publication Date
JPS5630827A true JPS5630827A (en) 1981-03-28
JPS6026697B2 JPS6026697B2 (en) 1985-06-25

Family

ID=14462488

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54107569A Expired JPS6026697B2 (en) 1978-12-29 1979-08-22 Method for producing ethylene-vinyl alcohol copolymer film

Country Status (1)

Country Link
JP (1) JPS6026697B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61235127A (en) * 1985-04-12 1986-10-20 Mitsubishi Monsanto Chem Co Manufacture of biaxially oriented film of saponified ethylene-vinylacetate copolymer
JPH01267032A (en) * 1988-04-19 1989-10-24 Mitsubishi Monsanto Chem Co Transparent plastic film excellent in gas barrier property
JPH02227174A (en) * 1989-02-27 1990-09-10 Nippon Synthetic Chem Ind Co Ltd:The Method for forming film of saponified ethylene/vinyl acetate copolymer
JP2002052493A (en) * 2000-08-09 2002-02-19 Kuraray Co Ltd Manufacturing method for ethylene-vinyl alcohol copolymer resin film

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6242382A (en) * 1985-08-20 1987-02-24 Matsushita Electric Ind Co Ltd Holder for cassette holder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4999369A (en) * 1973-01-23 1974-09-19
JPS5343198A (en) * 1976-09-29 1978-04-19 Brooks & Perkins Method of producing neutron absorbing sheet material
JPS5591632A (en) * 1978-12-29 1980-07-11 Kuraray Co Ltd Manufacture of ethylene vinyl alcohol copolymer film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4999369A (en) * 1973-01-23 1974-09-19
JPS5343198A (en) * 1976-09-29 1978-04-19 Brooks & Perkins Method of producing neutron absorbing sheet material
JPS5591632A (en) * 1978-12-29 1980-07-11 Kuraray Co Ltd Manufacture of ethylene vinyl alcohol copolymer film

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61235127A (en) * 1985-04-12 1986-10-20 Mitsubishi Monsanto Chem Co Manufacture of biaxially oriented film of saponified ethylene-vinylacetate copolymer
JPH01267032A (en) * 1988-04-19 1989-10-24 Mitsubishi Monsanto Chem Co Transparent plastic film excellent in gas barrier property
JPH02227174A (en) * 1989-02-27 1990-09-10 Nippon Synthetic Chem Ind Co Ltd:The Method for forming film of saponified ethylene/vinyl acetate copolymer
JP2002052493A (en) * 2000-08-09 2002-02-19 Kuraray Co Ltd Manufacturing method for ethylene-vinyl alcohol copolymer resin film
JP4542681B2 (en) * 2000-08-09 2010-09-15 株式会社クラレ Method for producing ethylene-vinyl alcohol copolymer resin film

Also Published As

Publication number Publication date
JPS6026697B2 (en) 1985-06-25

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