JPS5681326A - Propylene block copolymer - Google Patents
Propylene block copolymerInfo
- Publication number
- JPS5681326A JPS5681326A JP15687679A JP15687679A JPS5681326A JP S5681326 A JPS5681326 A JP S5681326A JP 15687679 A JP15687679 A JP 15687679A JP 15687679 A JP15687679 A JP 15687679A JP S5681326 A JPS5681326 A JP S5681326A
- Authority
- JP
- Japan
- Prior art keywords
- copolymer
- propylene
- olefin
- random copolymer
- branched
- 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: Titled copolymer having excellent heat resistance and impact resistance and being useful as a material for car parts, which has a limiting viscosity in a specified range and which comprises a propylene/α-olefin random copolymer and an ethylene homopolymer.
CONSTITUTION: Titled copolymer is obtained by forming, in the presence of a stereospecific polymerization catalyst, (A) 50W99pts.wt. of a random copolymer of propylene and a C5WC12 branched α-olefin as represented by the formula, wherein m is 0W7, R1 is methyl or ethyl, R2 is a C1WC8 alkyl and R3 is H, methyl or ethyl, such as 3-methylbutene-1 and (B) 1W50pts.wt. of an ethylene homopolymer and a random copolymer of ethylene, a C5WC12 branched α-olefin and optionally propylene. Moreover, the resulting copolymer is required to have an MW corresponding to a limiting viscosity measured in decalin at 135°C, in the range of 0.3W15dl/g.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15687679A JPS5681326A (en) | 1979-12-05 | 1979-12-05 | Propylene block copolymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15687679A JPS5681326A (en) | 1979-12-05 | 1979-12-05 | Propylene block copolymer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5681326A true JPS5681326A (en) | 1981-07-03 |
JPS631329B2 JPS631329B2 (en) | 1988-01-12 |
Family
ID=15637313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15687679A Granted JPS5681326A (en) | 1979-12-05 | 1979-12-05 | Propylene block copolymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5681326A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5871910A (en) * | 1981-10-23 | 1983-04-28 | Mitsubishi Petrochem Co Ltd | Olefinic block copolymer |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4864189A (en) * | 1971-12-09 | 1973-09-05 | ||
JPS506880A (en) * | 1973-05-31 | 1975-01-24 | ||
JPS5324990A (en) * | 1976-08-18 | 1978-03-08 | Nippon Atom Ind Group Co Ltd | Burnup measuring method in irradiated |
-
1979
- 1979-12-05 JP JP15687679A patent/JPS5681326A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4864189A (en) * | 1971-12-09 | 1973-09-05 | ||
JPS506880A (en) * | 1973-05-31 | 1975-01-24 | ||
JPS5324990A (en) * | 1976-08-18 | 1978-03-08 | Nippon Atom Ind Group Co Ltd | Burnup measuring method in irradiated |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5871910A (en) * | 1981-10-23 | 1983-04-28 | Mitsubishi Petrochem Co Ltd | Olefinic block copolymer |
JPH0343289B2 (en) * | 1981-10-23 | 1991-07-02 | Mitsubishi Petrochemical Co |
Also Published As
Publication number | Publication date |
---|---|
JPS631329B2 (en) | 1988-01-12 |
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