JPS57102907A - High-crystallinity propylene polymer for injection molding - Google Patents
High-crystallinity propylene polymer for injection moldingInfo
- Publication number
- JPS57102907A JPS57102907A JP17993280A JP17993280A JPS57102907A JP S57102907 A JPS57102907 A JP S57102907A JP 17993280 A JP17993280 A JP 17993280A JP 17993280 A JP17993280 A JP 17993280A JP S57102907 A JPS57102907 A JP S57102907A
- Authority
- JP
- Japan
- Prior art keywords
- injection molding
- titanium
- propylene polymer
- halide
- electron
- 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: The titled polymer having a good balance among fluidity, rigidity and impact resistance, prepared by (co)polymerizing propylene with the aid of specified catalyst consisting of a titanium (III) halide, an organoaluminum compound and an electron-donating compound.
CONSTITUTION: A high-crystallinity propylene polymer for injection molding, content of ethylene and other α-olefins ≤8wt%, boiling heptane-insoluble portion ≥92%, weight-average MW/number-average MW ratio ≥8, melt index (230°C, 2.16kg) 0.1W100g/10min, is prepared by (co)polymerizing propylene with the aid of a catalyst consisting of a titanium (III) halide, e.g., titanium trichloride, an organoaluminum compound represented by the formula, wherein Y is a group bonding to the Al via O, N or S, X is halogen, R is H, a 1W18C alkyl, an aryl or the like, 0<m<2, 0≤n<2 and 0<m+n≤2, and an electron-donating compound, e.g., ethyl anisate.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17993280A JPS57102907A (en) | 1980-12-18 | 1980-12-18 | High-crystallinity propylene polymer for injection molding |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17993280A JPS57102907A (en) | 1980-12-18 | 1980-12-18 | High-crystallinity propylene polymer for injection molding |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57102907A true JPS57102907A (en) | 1982-06-26 |
JPS649325B2 JPS649325B2 (en) | 1989-02-17 |
Family
ID=16074444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17993280A Granted JPS57102907A (en) | 1980-12-18 | 1980-12-18 | High-crystallinity propylene polymer for injection molding |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57102907A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60195109A (en) * | 1984-03-19 | 1985-10-03 | Mitsui Toatsu Chem Inc | Polypropylene resin composition for high-fluidity injection molding |
US5026889A (en) * | 1979-06-20 | 1991-06-25 | Sumitomo Chemical Company, Limited | Catalyst system for olefin polymerization and method for production of olefin polymers by using the same |
US5215951A (en) * | 1987-10-29 | 1993-06-01 | Sumitomo Chemical Company, Limited | Process for producing α-olefin polymer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2018829C (en) | 1989-06-19 | 1996-06-11 | Jun Saito | Process for producing a high-stiffness polypropylene and a highly stereoregular polypropylene |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5486586A (en) * | 1977-12-23 | 1979-07-10 | Showa Denko Kk | Propylene polymer for vacuum and pressure forming |
JPS555931A (en) * | 1978-06-27 | 1980-01-17 | Chisso Corp | Preparation of olefin polymer |
JPS559657A (en) * | 1978-07-07 | 1980-01-23 | Chisso Corp | Preparation of alpha-olefin polymer |
JPS5534238A (en) * | 1978-08-31 | 1980-03-10 | Chisso Corp | Preparation of alpha-olefin polymer |
JPS5538833A (en) * | 1978-09-12 | 1980-03-18 | Mitsubishi Chem Ind Ltd | Polymerization of olefin |
JPS56100806A (en) * | 1980-01-17 | 1981-08-13 | Chisso Corp | Preparation of alpha-olefin polymer |
-
1980
- 1980-12-18 JP JP17993280A patent/JPS57102907A/en active Granted
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5486586A (en) * | 1977-12-23 | 1979-07-10 | Showa Denko Kk | Propylene polymer for vacuum and pressure forming |
JPS555931A (en) * | 1978-06-27 | 1980-01-17 | Chisso Corp | Preparation of olefin polymer |
JPS559657A (en) * | 1978-07-07 | 1980-01-23 | Chisso Corp | Preparation of alpha-olefin polymer |
JPS5534238A (en) * | 1978-08-31 | 1980-03-10 | Chisso Corp | Preparation of alpha-olefin polymer |
JPS5538833A (en) * | 1978-09-12 | 1980-03-18 | Mitsubishi Chem Ind Ltd | Polymerization of olefin |
JPS56100806A (en) * | 1980-01-17 | 1981-08-13 | Chisso Corp | Preparation of alpha-olefin polymer |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5026889A (en) * | 1979-06-20 | 1991-06-25 | Sumitomo Chemical Company, Limited | Catalyst system for olefin polymerization and method for production of olefin polymers by using the same |
JPS60195109A (en) * | 1984-03-19 | 1985-10-03 | Mitsui Toatsu Chem Inc | Polypropylene resin composition for high-fluidity injection molding |
JPH041761B2 (en) * | 1984-03-19 | 1992-01-14 | Mitsui Toatsu Chemicals | |
US5215951A (en) * | 1987-10-29 | 1993-06-01 | Sumitomo Chemical Company, Limited | Process for producing α-olefin polymer |
Also Published As
Publication number | Publication date |
---|---|
JPS649325B2 (en) | 1989-02-17 |
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