JPS5661416A - Preparation of propylene-ethylene block copolymer - Google Patents
Preparation of propylene-ethylene block copolymerInfo
- Publication number
- JPS5661416A JPS5661416A JP13792979A JP13792979A JPS5661416A JP S5661416 A JPS5661416 A JP S5661416A JP 13792979 A JP13792979 A JP 13792979A JP 13792979 A JP13792979 A JP 13792979A JP S5661416 A JPS5661416 A JP S5661416A
- Authority
- JP
- Japan
- Prior art keywords
- propylene
- ethylene
- block copolymer
- copolymerized
- preparation
- 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
- Graft Or Block Polymers (AREA)
Abstract
PURPOSE: To obtain the titled block copolymer, excellent in rigidity, impact strength, luster, etc., and suitable as a car part, etc., by copolymerizing two kinds of propylene-ethylene mixture in two steps by use of a stereoregular catalyst.
CONSTITUTION: A propylene-ethylene mixture is copolymerized in two steps, at a polymerization temperature of about 40W80°C, at a polymerization pressure of about 1W35atm., in a hydrocarbon solvent such as hexane or toluene, by use of a stereoregular catalyst such as one obtained by combining titanium trickloride and diethylaluminum monochloride. In the first step, a propylene-ethylene mixture containing 0.4W1.4wt% of ethylene, is copolymerized to an extent of 70W90wt% of the total weight, and in the second step, a propylene-ethylene mixture containing 30W50wt% of ethylene is copolymerized to an extent of 30W10wt% of the total weight, to obtain the titled block copolymer.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13792979A JPS5661416A (en) | 1979-10-24 | 1979-10-24 | Preparation of propylene-ethylene block copolymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13792979A JPS5661416A (en) | 1979-10-24 | 1979-10-24 | Preparation of propylene-ethylene block copolymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5661416A true JPS5661416A (en) | 1981-05-26 |
JPS6215086B2 JPS6215086B2 (en) | 1987-04-06 |
Family
ID=15209979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13792979A Granted JPS5661416A (en) | 1979-10-24 | 1979-10-24 | Preparation of propylene-ethylene block copolymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5661416A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5670014A (en) * | 1979-11-13 | 1981-06-11 | Mitsui Toatsu Chem Inc | Propylene copolymer for forming sheet |
JP2001192426A (en) * | 1999-11-02 | 2001-07-17 | Chisso Corp | Propylene-based block copolymer composition |
JPWO2013081080A1 (en) * | 2011-12-02 | 2015-04-27 | 住友化学株式会社 | Process for producing olefin block polymer using plural kinds of transition metal catalysts |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49120986A (en) * | 1973-03-12 | 1974-11-19 | ||
JPS50115296A (en) * | 1974-02-27 | 1975-09-09 | ||
JPS51133393A (en) * | 1975-05-15 | 1976-11-19 | Showa Denko Kk | A process for manufacturing a propylene copolymer |
JPS523684A (en) * | 1975-06-27 | 1977-01-12 | Showa Denko Kk | Process for preparing ropylene copolymer |
JPS5388049A (en) * | 1977-01-13 | 1978-08-03 | Mitsui Petrochem Ind Ltd | Molding polymer composition and its preparation |
JPS5424995A (en) * | 1977-07-27 | 1979-02-24 | Showa Denko Kk | Production of propylene copolymer |
JPS5632516A (en) * | 1979-08-27 | 1981-04-02 | Idemitsu Petrochem Co Ltd | Production of propylene block copolymer |
-
1979
- 1979-10-24 JP JP13792979A patent/JPS5661416A/en active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49120986A (en) * | 1973-03-12 | 1974-11-19 | ||
JPS50115296A (en) * | 1974-02-27 | 1975-09-09 | ||
JPS51133393A (en) * | 1975-05-15 | 1976-11-19 | Showa Denko Kk | A process for manufacturing a propylene copolymer |
JPS523684A (en) * | 1975-06-27 | 1977-01-12 | Showa Denko Kk | Process for preparing ropylene copolymer |
JPS5388049A (en) * | 1977-01-13 | 1978-08-03 | Mitsui Petrochem Ind Ltd | Molding polymer composition and its preparation |
JPS5424995A (en) * | 1977-07-27 | 1979-02-24 | Showa Denko Kk | Production of propylene copolymer |
JPS5632516A (en) * | 1979-08-27 | 1981-04-02 | Idemitsu Petrochem Co Ltd | Production of propylene block copolymer |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5670014A (en) * | 1979-11-13 | 1981-06-11 | Mitsui Toatsu Chem Inc | Propylene copolymer for forming sheet |
JPS6227091B2 (en) * | 1979-11-13 | 1987-06-12 | Mitsui Toatsu Chemicals | |
JP2001192426A (en) * | 1999-11-02 | 2001-07-17 | Chisso Corp | Propylene-based block copolymer composition |
JPWO2013081080A1 (en) * | 2011-12-02 | 2015-04-27 | 住友化学株式会社 | Process for producing olefin block polymer using plural kinds of transition metal catalysts |
Also Published As
Publication number | Publication date |
---|---|
JPS6215086B2 (en) | 1987-04-06 |
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