JPS5686939A - Production of molded product - Google Patents
Production of molded productInfo
- Publication number
- JPS5686939A JPS5686939A JP16351779A JP16351779A JPS5686939A JP S5686939 A JPS5686939 A JP S5686939A JP 16351779 A JP16351779 A JP 16351779A JP 16351779 A JP16351779 A JP 16351779A JP S5686939 A JPS5686939 A JP S5686939A
- Authority
- JP
- Japan
- Prior art keywords
- crosslinking
- molded product
- vinyl chloride
- index
- molded
- 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: When a molded product with a specific crosslinking index is made from a vinyl chloride resin composition, precrosslinking is effected until the crosslinking index reaches higher than half level, then the molding and crosslinking are completed simultaneously, thus preventing the scorch during the molding.
CONSTITUTION: When a molded product with a crosslinking index ranging 0.005W 5, preferably from 0.05W1, which is defined as the number of crosslinking points per one molecule before crosslinking, when crosslinking occurrs between linear high-molecular molecules, is made from a vinyl chloride resin composition that contains a vinyl chloride homo- or copolymer and has crosslinking properties, a blender or mixing roller is used to effect the precrosslinking of the composition to a level of higher than 50, preferably higher than 80% of the crosslinking index of the molded product. Then, the resultant crosslinked resin is molded with an extruder and simultaneously crosslinking is completed.
EFFECT: Scorcing (caused by partially early crosslinking) is prevent to give molded products with improved appearance.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16351779A JPS5686939A (en) | 1979-12-18 | 1979-12-18 | Production of molded product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16351779A JPS5686939A (en) | 1979-12-18 | 1979-12-18 | Production of molded product |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5686939A true JPS5686939A (en) | 1981-07-15 |
Family
ID=15775362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16351779A Pending JPS5686939A (en) | 1979-12-18 | 1979-12-18 | Production of molded product |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5686939A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017092296A (en) * | 2015-11-12 | 2017-05-25 | 日東電工株式会社 | Dicing/die-bonding film, and method of manufacturing semiconductor device |
-
1979
- 1979-12-18 JP JP16351779A patent/JPS5686939A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017092296A (en) * | 2015-11-12 | 2017-05-25 | 日東電工株式会社 | Dicing/die-bonding film, and method of manufacturing semiconductor device |
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