JPS5780443A - Preparation of modified polypropylene - Google Patents
Preparation of modified polypropyleneInfo
- Publication number
- JPS5780443A JPS5780443A JP15702480A JP15702480A JPS5780443A JP S5780443 A JPS5780443 A JP S5780443A JP 15702480 A JP15702480 A JP 15702480A JP 15702480 A JP15702480 A JP 15702480A JP S5780443 A JPS5780443 A JP S5780443A
- Authority
- JP
- Japan
- Prior art keywords
- modified polypropylene
- low
- carboxylic acid
- density polyethylene
- unsaturated carboxylic
- 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 composition containing an unsaturated carboxylic acid in a low graft amount as having good adhesiveness, by a method wherein a low-density polyethylene is mixed in a modified polypropylene obtained by a melt kneading process and the resulting compound is heat treated.
CONSTITUTION: 90W50pts.wt. modified polypropylene obtained by melting and kneading a mixture comprising polypropylene, an unsaturated carboxylic acid or a derivative thereof and an org. peroxide is mixed with 10W50pts.wt. low- density polyethylene. The resulting mixture is heat treated at 60°C or higher, pref., 100°C or higher. As the unsaturated carboxylic acid to be used, maleic anhydride is most pref. The heat treatment is desirably carried out by heating and degassing said modified polypropylene so as to adjust an amount of an unreacted monomer therein to 0.05mol or less. As the low density polyethylene, one with an MF of 10.5W30g/min and a specific gravity of 0.914W0.940 is preferred.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15702480A JPS5780443A (en) | 1980-11-10 | 1980-11-10 | Preparation of modified polypropylene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15702480A JPS5780443A (en) | 1980-11-10 | 1980-11-10 | Preparation of modified polypropylene |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5780443A true JPS5780443A (en) | 1982-05-20 |
JPS6239615B2 JPS6239615B2 (en) | 1987-08-24 |
Family
ID=15640511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15702480A Granted JPS5780443A (en) | 1980-11-10 | 1980-11-10 | Preparation of modified polypropylene |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5780443A (en) |
-
1980
- 1980-11-10 JP JP15702480A patent/JPS5780443A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6239615B2 (en) | 1987-08-24 |
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