JPS5663424A - Biaxially oriented polypropylene film - Google Patents

Biaxially oriented polypropylene film

Info

Publication number
JPS5663424A
JPS5663424A JP13978679A JP13978679A JPS5663424A JP S5663424 A JPS5663424 A JP S5663424A JP 13978679 A JP13978679 A JP 13978679A JP 13978679 A JP13978679 A JP 13978679A JP S5663424 A JPS5663424 A JP S5663424A
Authority
JP
Japan
Prior art keywords
film
refractive index
biaxially oriented
oriented polypropylene
easy tearing
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
JP13978679A
Other languages
Japanese (ja)
Inventor
Kenji Tsunashima
Kenichi Kawakami
Toshiya Yoshii
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.)
Toray Industries Inc
Original Assignee
Toray Industries 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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP13978679A priority Critical patent/JPS5663424A/en
Publication of JPS5663424A publication Critical patent/JPS5663424A/en
Pending legal-status Critical Current

Links

Landscapes

  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Adhesive Tapes (AREA)

Abstract

PURPOSE: To improve a high rigidity, an easy tearing property, a transparency and a glossy property and obtain a film more excellent than cellophane by method wherein a Charpy impact strength and an interface average refractive index of a biaxially oriented polypropylene film are limited within a specified range.
CONSTITUTION: A biaxially oriented polypropylene film having 1.510 or more of an interface average refractive index and a Charpy impact strength within a range of 50W130(kg.cm/mm2) is provided. Above-described Charpy impact strength is a reference value for an easy tearing property of the film and if the value is within a range of 50W130kg.cm/mm2, the easy tearing property may be obtained. In order to make the rigid film excellent in a resistance to impact while maintaining the easy tearing property, it is necessary that the interface average refractive index should be 1.510 or more. This is because that, if the interface averge refractive index is less than 1.510, the resistance to impact, Young's modulus and an ultimate strength thereof are made week and the film will lose a high rigidity and a feeling of cellophane.
COPYRIGHT: (C)1981,JPO&Japio
JP13978679A 1979-10-31 1979-10-31 Biaxially oriented polypropylene film Pending JPS5663424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13978679A JPS5663424A (en) 1979-10-31 1979-10-31 Biaxially oriented polypropylene film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13978679A JPS5663424A (en) 1979-10-31 1979-10-31 Biaxially oriented polypropylene film

Publications (1)

Publication Number Publication Date
JPS5663424A true JPS5663424A (en) 1981-05-30

Family

ID=15253386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13978679A Pending JPS5663424A (en) 1979-10-31 1979-10-31 Biaxially oriented polypropylene film

Country Status (1)

Country Link
JP (1) JPS5663424A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136418A (en) * 1982-02-09 1983-08-13 Toray Ind Inc Biaxially oriented polyolefin film
JPS6445488A (en) * 1987-08-12 1989-02-17 Toray Industries Polypropylene film for adhesive tape
JPH0241382A (en) * 1988-08-02 1990-02-09 Toray Ind Inc Polypropylene film for tacky tape
US5078925A (en) * 1987-07-01 1992-01-07 Minnesota Mining And Manufacturing Company Preparing polypropylene articles
JPWO2005092257A1 (en) * 2004-03-26 2008-02-07 帝國製薬株式会社 Cooling sheet and cooling container
JP2013177645A (en) * 2013-06-26 2013-09-09 Mitsui Chemicals Tohcello Inc Biaxially oriented polypropylene film and method for producing the same
JP2018167487A (en) * 2017-03-30 2018-11-01 三井化学東セロ株式会社 Packaging film for food and package for food

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58136418A (en) * 1982-02-09 1983-08-13 Toray Ind Inc Biaxially oriented polyolefin film
JPH0153174B2 (en) * 1982-02-09 1989-11-13 Toray Industries
US5078925A (en) * 1987-07-01 1992-01-07 Minnesota Mining And Manufacturing Company Preparing polypropylene articles
JPS6445488A (en) * 1987-08-12 1989-02-17 Toray Industries Polypropylene film for adhesive tape
JPH0241382A (en) * 1988-08-02 1990-02-09 Toray Ind Inc Polypropylene film for tacky tape
JPH0696694B2 (en) * 1988-08-02 1994-11-30 東レ株式会社 Polypropylene film for adhesive tape
JPWO2005092257A1 (en) * 2004-03-26 2008-02-07 帝國製薬株式会社 Cooling sheet and cooling container
JP2013177645A (en) * 2013-06-26 2013-09-09 Mitsui Chemicals Tohcello Inc Biaxially oriented polypropylene film and method for producing the same
JP2018167487A (en) * 2017-03-30 2018-11-01 三井化学東セロ株式会社 Packaging film for food and package for food

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