JPS565737A - Highly stretched film of ethylene copolymer and preparation thereof - Google Patents
Highly stretched film of ethylene copolymer and preparation thereofInfo
- Publication number
- JPS565737A JPS565737A JP8245079A JP8245079A JPS565737A JP S565737 A JPS565737 A JP S565737A JP 8245079 A JP8245079 A JP 8245079A JP 8245079 A JP8245079 A JP 8245079A JP S565737 A JPS565737 A JP S565737A
- Authority
- JP
- Japan
- Prior art keywords
- less
- copolymer
- ethylene
- stretched
- 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
Links
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
PURPOSE:To prepare the said film excellent in transparency, tensile strength, fracture elongation by a method wherein a resin composition containing a specified copolymer is cold-stretched after it has been extruded in a tube form, quenched and cured. CONSTITUTION:After an ethylenecopolimer containing 50wt% or more of one or more copolimer selected from a copolymer (A) of vinylester monomer and ethylene, a copolymer (B) of aliphatic unsaturated carbonic acid (alkylester) and ethylene, and an ionomer (C) induced from (B) have been extruded in a tube form at 180- 280 deg.C, quenched and cured in a liquid solvent, high energy rays are irradiated as occasion demands and treated into boiling xylene insoluble gel of 0-70wt%, MI:2 or less. Then, this film is cold-stretched at 80 deg.C or less, preferably, at a temperature 20 deg.C lower than the Vicat softening point of the polymer up to an area stretching magnification of 5-30 times and an ethylene copolymer highly stretched film is obtained at a tensile strength of 5kg/mm.<2> or more, at a 20% shrinking temperature of 85 deg.C or less, at a shrinking inclination of 1.5 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8245079A JPS565737A (en) | 1979-06-29 | 1979-06-29 | Highly stretched film of ethylene copolymer and preparation thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8245079A JPS565737A (en) | 1979-06-29 | 1979-06-29 | Highly stretched film of ethylene copolymer and preparation thereof |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29365385A Division JPS61293831A (en) | 1985-12-28 | 1985-12-28 | Highly oriented ethylene copolymer film and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS565737A true JPS565737A (en) | 1981-01-21 |
| JPS6142620B2 JPS6142620B2 (en) | 1986-09-22 |
Family
ID=13774847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8245079A Granted JPS565737A (en) | 1979-06-29 | 1979-06-29 | Highly stretched film of ethylene copolymer and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS565737A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01141382U (en) * | 1988-03-21 | 1989-09-28 | ||
| JPH02112277U (en) * | 1988-03-21 | 1990-09-07 | ||
| JPH0532798A (en) * | 1991-07-31 | 1993-02-09 | Shin Etsu Polymer Co Ltd | Film for stretch packaging |
-
1979
- 1979-06-29 JP JP8245079A patent/JPS565737A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01141382U (en) * | 1988-03-21 | 1989-09-28 | ||
| JPH02112277U (en) * | 1988-03-21 | 1990-09-07 | ||
| JPH0532798A (en) * | 1991-07-31 | 1993-02-09 | Shin Etsu Polymer Co Ltd | Film for stretch packaging |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6142620B2 (en) | 1986-09-22 |
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