JPS55154131A - Preparation of biaxially-drawn laminated polypropylene film - Google Patents

Preparation of biaxially-drawn laminated polypropylene film

Info

Publication number
JPS55154131A
JPS55154131A JP6102079A JP6102079A JPS55154131A JP S55154131 A JPS55154131 A JP S55154131A JP 6102079 A JP6102079 A JP 6102079A JP 6102079 A JP6102079 A JP 6102079A JP S55154131 A JPS55154131 A JP S55154131A
Authority
JP
Japan
Prior art keywords
polypropylene film
ethylene
biaxially
random copolymer
cooling
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
JP6102079A
Other languages
Japanese (ja)
Other versions
JPS5942614B2 (en
Inventor
Mitsuyoshi Fujiyama
Hiroshi Tabuse
Mitsuo Kamura
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.)
Tokuyama Corp
Original Assignee
Tokuyama Corp
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 Tokuyama Corp filed Critical Tokuyama Corp
Priority to JP6102079A priority Critical patent/JPS5942614B2/en
Publication of JPS55154131A publication Critical patent/JPS55154131A/en
Publication of JPS5942614B2 publication Critical patent/JPS5942614B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain the captioned film whose temperature for starting heat seal is low and which has antiscratch and antiblocking properties and improved transparency by melting laminated ethylene-propylene random copolymer and then cooling it rapidly.
CONSTITUTION: The surface of the random copolymer of a biaxially-drawn polypropylene film, on one surface of which, at least, the ethylene-propylene random copolymer containing 1.0W7.0wt% of ethylene (preferably with the melt flow index ratio of 12 of less) is laminated, is heated up to the temperature higher than the melting point of the above copolymer and lower than the melting point of the polypropylene film and then cooled rapidly down to the temperature of 70°C or preferably 50°C or less at the cooling speed of 70°C/sec. or more, or preferably 150°C/sec. or more. Furthermore, it is preferable that the 2nd-axial drawing and rapid cooling are performed within the range of the above temperatures, from the viewpoint of processing.
COPYRIGHT: (C)1980,JPO&Japio
JP6102079A 1979-05-19 1979-05-19 Method for producing laminated biaxially stretched polypropylene film Expired JPS5942614B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6102079A JPS5942614B2 (en) 1979-05-19 1979-05-19 Method for producing laminated biaxially stretched polypropylene film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6102079A JPS5942614B2 (en) 1979-05-19 1979-05-19 Method for producing laminated biaxially stretched polypropylene film

Publications (2)

Publication Number Publication Date
JPS55154131A true JPS55154131A (en) 1980-12-01
JPS5942614B2 JPS5942614B2 (en) 1984-10-16

Family

ID=13159207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6102079A Expired JPS5942614B2 (en) 1979-05-19 1979-05-19 Method for producing laminated biaxially stretched polypropylene film

Country Status (1)

Country Link
JP (1) JPS5942614B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563229A (en) * 1978-11-02 1980-05-13 Toyobo Co Ltd Method of manufacturing film excellent in transparency
JPS61120744A (en) * 1984-11-14 1986-06-07 モ−ビル　オイル　コ−ポレ−ション Heat-sealing multilayer polypropylene film structure
WO2020075755A1 (en) * 2018-10-09 2020-04-16 サンアロマー株式会社 Polypropylene sheet production method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563229A (en) * 1978-11-02 1980-05-13 Toyobo Co Ltd Method of manufacturing film excellent in transparency
JPS6320690B2 (en) * 1978-11-02 1988-04-28 Toyo Boseki
JPS61120744A (en) * 1984-11-14 1986-06-07 モ−ビル　オイル　コ−ポレ−ション Heat-sealing multilayer polypropylene film structure
JPH0477665B2 (en) * 1984-11-14 1992-12-09 Mobil Oil
WO2020075755A1 (en) * 2018-10-09 2020-04-16 サンアロマー株式会社 Polypropylene sheet production method
JPWO2020075755A1 (en) * 2018-10-09 2021-09-02 サンアロマー株式会社 How to manufacture polypropylene sheet

Also Published As

Publication number Publication date
JPS5942614B2 (en) 1984-10-16

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