JPS5794032A - Production of modified polypropylene composition - Google Patents
Production of modified polypropylene compositionInfo
- Publication number
- JPS5794032A JPS5794032A JP16913080A JP16913080A JPS5794032A JP S5794032 A JPS5794032 A JP S5794032A JP 16913080 A JP16913080 A JP 16913080A JP 16913080 A JP16913080 A JP 16913080A JP S5794032 A JPS5794032 A JP S5794032A
- Authority
- JP
- Japan
- Prior art keywords
- modified polypropylene
- heat
- polypropylene
- blended
- carboxylic acid
- 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
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To obtain a modified polypropylene freed from foaming during molding and having good adhesion to polar substances, by heat-treating a specified modified polypropylene and blending the heat-treated polypropylene with an atactic propylene/ethylene block copolymer.
CONSTITUTION: A mixture consisting of polypropylene, an unsaturated carboxylic acid or its derivative and an organic peroxide is melt-blended. The resulting modified polypropylene is heat-treated at a temperature≥60°C, pref., ≥100°C and 90W50pts.wt. this modified polypropylene is blended with 10W50pts.wt. atactic propylene/ethylene block copolymer. As the unsaturated carboxylic acid which can be used, maleic anhydride is most suitable. The heating time for heat- treatment is generally about 10minW10hr, and preferably this heat-treatment is carried out so that the modified polypropylene is devolatilized by heating to an unreacted monomer content ≤0.05mol%.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16913080A JPS5794032A (en) | 1980-12-02 | 1980-12-02 | Production of modified polypropylene composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16913080A JPS5794032A (en) | 1980-12-02 | 1980-12-02 | Production of modified polypropylene composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5794032A true JPS5794032A (en) | 1982-06-11 |
JPS6239616B2 JPS6239616B2 (en) | 1987-08-24 |
Family
ID=15880829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16913080A Granted JPS5794032A (en) | 1980-12-02 | 1980-12-02 | Production of modified polypropylene composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5794032A (en) |
-
1980
- 1980-12-02 JP JP16913080A patent/JPS5794032A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6239616B2 (en) | 1987-08-24 |
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