JPS5443274A - High-density polyethylene film with high transparency - Google Patents
High-density polyethylene film with high transparencyInfo
- Publication number
- JPS5443274A JPS5443274A JP10972477A JP10972477A JPS5443274A JP S5443274 A JPS5443274 A JP S5443274A JP 10972477 A JP10972477 A JP 10972477A JP 10972477 A JP10972477 A JP 10972477A JP S5443274 A JPS5443274 A JP S5443274A
- Authority
- JP
- Japan
- Prior art keywords
- density polyethylene
- rapidly cooled
- outside
- polyethylene film
- mandrel
- 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
Links
Abstract
PURPOSE: Melt-extruded tubes of high-density polyethylene resin, after rapidly cooled on both outside and innerside surfaces, closslinked with ionized radiation and then stretched monoaxially to produce titled films with high transparency, tensile strength and good thermal shrinkage property.
CONSTITUTION: A high-density polyethylene with density of 0.941 or more is extruded from an extruder provided with a ring dice with an inner mandrel that has a mechanism passing cooling water inside the mandrel into tubular films of 10W 1,000 micron thickness and rapidly cooled from both outside and inside directly or indirectly by water running through the inner mandrel and the cooling pipe to a temperature lower than 25°C. Then the film is irradiated with ionized radiation and crosslinked to 20W80% gel fraction and strengthed in at least one direction at a draw ratio of 10W50 in area to produce said high-density polyethylene film with less than 2 haze.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10972477A JPS5443274A (en) | 1977-09-12 | 1977-09-12 | High-density polyethylene film with high transparency |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10972477A JPS5443274A (en) | 1977-09-12 | 1977-09-12 | High-density polyethylene film with high transparency |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5443274A true JPS5443274A (en) | 1979-04-05 |
Family
ID=14517610
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10972477A Pending JPS5443274A (en) | 1977-09-12 | 1977-09-12 | High-density polyethylene film with high transparency |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5443274A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5983865U (en) * | 1982-11-30 | 1984-06-06 | 三菱重工業株式会社 | Underwater object lifting device |
US4636340A (en) * | 1984-01-23 | 1987-01-13 | Toa Nenryo Kogyo Kabushiki Kaisha | Method of producing crosslinked polyethylene stretched film |
US4931230A (en) * | 1986-05-08 | 1990-06-05 | Minnesota Mining And Manufacturing Company | Method for preparing radiation resistant polypropylene articles |
US4950549A (en) * | 1987-07-01 | 1990-08-21 | Minnesota Mining And Manufacturing Company | Polypropylene articles and method for preparing same |
US5140073A (en) * | 1989-06-26 | 1992-08-18 | Minnesota Mining And Manufacturing Company | Radiation resistant heat sealable polymer blends of compatible polymers and methods of preparing same |
US5209984A (en) * | 1989-06-26 | 1993-05-11 | Minnesota Mining And Manufacturing Company | Films of radiation resistant heat sealable polymer blends having a surface adhesion layer grafted thereto |
US5258419A (en) * | 1989-06-26 | 1993-11-02 | Minnesota Mining And Manufacturing Company | Methods of preparing radiation resistant heat sealable polymer blends |
US8029888B2 (en) * | 2008-06-30 | 2011-10-04 | Basell Polyolefine Gmbh | Preparation of transparent high density polyethylene sheets |
-
1977
- 1977-09-12 JP JP10972477A patent/JPS5443274A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5983865U (en) * | 1982-11-30 | 1984-06-06 | 三菱重工業株式会社 | Underwater object lifting device |
JPS6246710Y2 (en) * | 1982-11-30 | 1987-12-18 | ||
US4636340A (en) * | 1984-01-23 | 1987-01-13 | Toa Nenryo Kogyo Kabushiki Kaisha | Method of producing crosslinked polyethylene stretched film |
US4931230A (en) * | 1986-05-08 | 1990-06-05 | Minnesota Mining And Manufacturing Company | Method for preparing radiation resistant polypropylene articles |
US4950549A (en) * | 1987-07-01 | 1990-08-21 | Minnesota Mining And Manufacturing Company | Polypropylene articles and method for preparing same |
US5140073A (en) * | 1989-06-26 | 1992-08-18 | Minnesota Mining And Manufacturing Company | Radiation resistant heat sealable polymer blends of compatible polymers and methods of preparing same |
US5209984A (en) * | 1989-06-26 | 1993-05-11 | Minnesota Mining And Manufacturing Company | Films of radiation resistant heat sealable polymer blends having a surface adhesion layer grafted thereto |
US5258419A (en) * | 1989-06-26 | 1993-11-02 | Minnesota Mining And Manufacturing Company | Methods of preparing radiation resistant heat sealable polymer blends |
US8029888B2 (en) * | 2008-06-30 | 2011-10-04 | Basell Polyolefine Gmbh | Preparation of transparent high density polyethylene sheets |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5628826A (en) | Thermoshrinking film and manufacturing thereof | |
KR890002292A (en) | Linear polyethylene film and its manufacturing method | |
JPS5443274A (en) | High-density polyethylene film with high transparency | |
GB1279714A (en) | Heat shrinkable ethylene polymer film | |
NO951937D0 (en) | Low-energy fire pipes and process for their preparation | |
US3121760A (en) | Method of extruding polystyrene tube | |
JPS6471729A (en) | Method and device for manufacturing mesh film | |
JPS54142275A (en) | Transparent biaxially oriented poly-p-phenylene sulfide film | |
GB992897A (en) | Ethylene copolymer shrinkable films | |
JPS5448864A (en) | Heat-shrinkable crosslinked polyethylene resin film and its production | |
JPS5757629A (en) | Manufacture of polyester film | |
JPS5472279A (en) | Highly cold drawn film and its production | |
JPS57103819A (en) | Manufacture of biaxially stretched polypropylene film of excellent rigidity and heat-shrinking resistance | |
JPS5555829A (en) | Heat-shrinkable polyethylene resin film and its manufacturing process | |
JPS5431465A (en) | Die for extruding multilayered tube | |
PT103380B (en) | LINE OF EXTRUSION LABORATORIAL FOR THE PRODUCTION OF TUBULAR FILM CONVENTIONAL AND BIORIENTED, WITH SIMPLE SWITCHING BETWEEN THE TWO TECHNIQUES | |
GB1245069A (en) | Heat shrinkable anti-fogging films | |
JPS57199626A (en) | Manufacture of heat-shrinkable plastic film | |
JPS5478743A (en) | Film of crosslinked polyethylene | |
JPS5617226A (en) | Production for stretchable inflated film of polyethylene | |
JPS5610429A (en) | Surface treatment of polypropylene composite resin | |
KR960021480A (en) | Manufacturing method of biaxially oriented polyester film | |
JPS55123424A (en) | Biaxially oriented plastic film and its preparation | |
JPS53118474A (en) | Production of drawn thermoplastic resin films and its device | |
JPS56111627A (en) | Production of thermo-shrinkable matt film |