JPS6485242A - Rubber composition - Google Patents
Rubber compositionInfo
- Publication number
- JPS6485242A JPS6485242A JP24067387A JP24067387A JPS6485242A JP S6485242 A JPS6485242 A JP S6485242A JP 24067387 A JP24067387 A JP 24067387A JP 24067387 A JP24067387 A JP 24067387A JP S6485242 A JPS6485242 A JP S6485242A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- diene
- propylene
- copolymer
- rubber composition
- 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
Abstract
PURPOSE:To obtain a rubber composition excellent in flatting resistance, by mixing an ethylene/propylene/diene copolymer of specified properties with carbon black and a process oil. CONSTITUTION:Ethylene, propylene and a diene such as 1,4-hexadiene are polymerized under normal pressure or a slightly elevated pressure in an inert solvent in the presence of a suitable catalyst to obtain an ethylene/propylene/diene copolymer having a diene compositional distribution specified by IL/IM>=1.2 (wherein IM and IL are the iodine values of the higher and lower 50wt.% portions in the molecular weight distribution) and an ethylene content of 50-70wt.%. 100pts.wt. this copolymer of said specified properties is mixed with 10-200pts. wt. carbon black, 0-150pts.wt. process oil and, optionally, a vulcanizer, a vulcanization accelerator, an antioxidant, a filler, etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24067387A JPS6485242A (en) | 1987-09-28 | 1987-09-28 | Rubber composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP24067387A JPS6485242A (en) | 1987-09-28 | 1987-09-28 | Rubber composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6485242A true JPS6485242A (en) | 1989-03-30 |
Family
ID=17063001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP24067387A Pending JPS6485242A (en) | 1987-09-28 | 1987-09-28 | Rubber composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6485242A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6797763B2 (en) | 1992-08-27 | 2004-09-28 | Bin Chung | Carbon black containing EPDM compositions having either a high gloss or a textured matte finish |
-
1987
- 1987-09-28 JP JP24067387A patent/JPS6485242A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6797763B2 (en) | 1992-08-27 | 2004-09-28 | Bin Chung | Carbon black containing EPDM compositions having either a high gloss or a textured matte finish |
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