JPS5462276A - Preparation of biaxially oriented film of high-density polyethylene - Google Patents

Preparation of biaxially oriented film of high-density polyethylene

Info

Publication number
JPS5462276A
JPS5462276A JP12908777A JP12908777A JPS5462276A JP S5462276 A JPS5462276 A JP S5462276A JP 12908777 A JP12908777 A JP 12908777A JP 12908777 A JP12908777 A JP 12908777A JP S5462276 A JPS5462276 A JP S5462276A
Authority
JP
Japan
Prior art keywords
density polyethylene
film
biaxially oriented
preparation
oriented 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
JP12908777A
Other languages
Japanese (ja)
Inventor
Kazuo Matsukura
Kunio Murakami
Tadashi Hayashi
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.)
Unitika Ltd
Original Assignee
Unitika 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 Unitika Ltd filed Critical Unitika Ltd
Priority to JP12908777A priority Critical patent/JPS5462276A/en
Publication of JPS5462276A publication Critical patent/JPS5462276A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prepare a uniformly oriented polyethylene film without necking, by preheating undrawn film at a specific temperature and subjecting to simultaneous biaxial orientation.
CONSTITUTION: The undrawn film of a high density polyethylene resin is preheated at a temperature above the melting point, preferably at the melting point to the temperature 20°C higher than it. Immediately after the preheating, the film is subjected to simultaneous biaxial orientation at the melting point to the temperature 15°C higher than it, to give the biaxially oriented film of the high density polyethylene resin, having a density of ≥0.94 g/cm3.
COPYRIGHT: (C)1979,JPO&Japio
JP12908777A 1977-10-26 1977-10-26 Preparation of biaxially oriented film of high-density polyethylene Pending JPS5462276A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12908777A JPS5462276A (en) 1977-10-26 1977-10-26 Preparation of biaxially oriented film of high-density polyethylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12908777A JPS5462276A (en) 1977-10-26 1977-10-26 Preparation of biaxially oriented film of high-density polyethylene

Publications (1)

Publication Number Publication Date
JPS5462276A true JPS5462276A (en) 1979-05-19

Family

ID=15000746

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12908777A Pending JPS5462276A (en) 1977-10-26 1977-10-26 Preparation of biaxially oriented film of high-density polyethylene

Country Status (1)

Country Link
JP (1) JPS5462276A (en)

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