JPS5610509A - Production of propylene copolymer - Google Patents
Production of propylene copolymerInfo
- Publication number
- JPS5610509A JPS5610509A JP8559379A JP8559379A JPS5610509A JP S5610509 A JPS5610509 A JP S5610509A JP 8559379 A JP8559379 A JP 8559379A JP 8559379 A JP8559379 A JP 8559379A JP S5610509 A JPS5610509 A JP S5610509A
- Authority
- JP
- Japan
- Prior art keywords
- propylene
- olefin
- ethylene
- copolymer
- linear
- 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
Abstract
PURPOSE: To improve heat-sealability, transparency and blocking resistance, by homopolymerizing propylene by use of a specific Ti-Al catalyst and then random- copolymerizing the propylene homopolymer with propylene, a linear α-olefin and ethylene.
CONSTITUTION: Solid (A) obtained by reducing TiCl4 with an organic Al compound or metallic Al and treating the reduced product with a complexing agent, is employed as a polymerization catalyst. Homopolymerization of propylene is continued until 5W500 times the weight of solid A, of the homopolymer is formed. Then, a 5W12C linear α-olefin and ethylene are copolymerized with the PP until 1,000W10,000 times the weight of solid A, of a copolymer is formed. H2 is used for molecular weight control. The above polymerization is carried out so that the copolymer has 72W99.4wt% of propylene, 0.5W20.0wt% of linear α-olefin and 0.1W8wt% of ethylene. Prior to the homopolymerization of propylene, polymerization of the α-olefin or polymirization of any two of the three monomers may be carried out. In this manner, an excellent copolymer for films can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8559379A JPS5610509A (en) | 1979-07-06 | 1979-07-06 | Production of propylene copolymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8559379A JPS5610509A (en) | 1979-07-06 | 1979-07-06 | Production of propylene copolymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5610509A true JPS5610509A (en) | 1981-02-03 |
JPS649332B2 JPS649332B2 (en) | 1989-02-17 |
Family
ID=13863111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8559379A Granted JPS5610509A (en) | 1979-07-06 | 1979-07-06 | Production of propylene copolymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5610509A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102496515B (en) * | 2011-12-19 | 2013-10-02 | 太原惠特科技有限公司 | Front and rear multi-door locking mechanism with operating position of disconnecting switch on side face |
-
1979
- 1979-07-06 JP JP8559379A patent/JPS5610509A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS649332B2 (en) | 1989-02-17 |
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