JPS5485276A - Preparation of highly crystalline polyolefin resin molded article having improved brittleness - Google Patents
Preparation of highly crystalline polyolefin resin molded article having improved brittlenessInfo
- Publication number
- JPS5485276A JPS5485276A JP15409877A JP15409877A JPS5485276A JP S5485276 A JPS5485276 A JP S5485276A JP 15409877 A JP15409877 A JP 15409877A JP 15409877 A JP15409877 A JP 15409877A JP S5485276 A JPS5485276 A JP S5485276A
- Authority
- JP
- Japan
- Prior art keywords
- molded article
- polyolefin resin
- resin molded
- highly crystalline
- crystalline polyolefin
- 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
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
PURPOSE: To prepare a highly crystalline polyolefin resin molded article having low brittle temperature without lowering the crystallinity, by heat treating a partially cross-linked olyolefin resin molded article at high pressure.
CONSTITUTION: A polyolefin resin such as polyethylene is cross-linked by electron- beam cross-linking, chemical cross-linding, etc., to give a gel fraction of ≤10%, and heated at a temperature between 20°C below the melting point and 20°C above the melting point for, e.g. 10W20 min. under a pressure of, e.g. 2500W5000 kg/cm2 in silicone oil.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15409877A JPS5940161B2 (en) | 1977-12-21 | 1977-12-21 | Method for producing a highly crystalline polyolefin resin molded article with improved brittleness |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15409877A JPS5940161B2 (en) | 1977-12-21 | 1977-12-21 | Method for producing a highly crystalline polyolefin resin molded article with improved brittleness |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5485276A true JPS5485276A (en) | 1979-07-06 |
JPS5940161B2 JPS5940161B2 (en) | 1984-09-28 |
Family
ID=15576860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15409877A Expired JPS5940161B2 (en) | 1977-12-21 | 1977-12-21 | Method for producing a highly crystalline polyolefin resin molded article with improved brittleness |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5940161B2 (en) |
-
1977
- 1977-12-21 JP JP15409877A patent/JPS5940161B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5940161B2 (en) | 1984-09-28 |
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