JPS5718750A - Ethylene-propylene rubber composition - Google Patents
Ethylene-propylene rubber compositionInfo
- Publication number
- JPS5718750A JPS5718750A JP9417980A JP9417980A JPS5718750A JP S5718750 A JPS5718750 A JP S5718750A JP 9417980 A JP9417980 A JP 9417980A JP 9417980 A JP9417980 A JP 9417980A JP S5718750 A JPS5718750 A JP S5718750A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- propylene
- rubber composition
- chain length
- propylene rubber
- 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.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: To prepare the titled composition having excellent elongation and mechanical strength, without lowering the rate of vulcanization, by compounding an ethylene-propylene copolymer rubber with an ethylene-propylene block copolymer having specific composition and ethylene chain length.
CONSTITUTION: 100pts.wt. of an ethylene-propylene copolymer rubber containing 0W50wt% of butyl rubber is compounded with 5W30pts.wt. of an ethylene-propylene block copolymer (pref. having an intrinsic viscosity of 1.0W5.0) having ethylene /propylene weight ratio of 40/60W55/45 and average ethylene chain length in the ethylene unit of 15W30.
USE: Especially as a roofing material, or to the field requiring high elongation.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9417980A JPS5718750A (en) | 1980-07-10 | 1980-07-10 | Ethylene-propylene rubber composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9417980A JPS5718750A (en) | 1980-07-10 | 1980-07-10 | Ethylene-propylene rubber composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5718750A true JPS5718750A (en) | 1982-01-30 |
Family
ID=14103101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9417980A Pending JPS5718750A (en) | 1980-07-10 | 1980-07-10 | Ethylene-propylene rubber composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5718750A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4878249A (en) * | 1972-01-19 | 1973-10-20 |
-
1980
- 1980-07-10 JP JP9417980A patent/JPS5718750A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4878249A (en) * | 1972-01-19 | 1973-10-20 |
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