JPS5661439A - Epdm rubber composition - Google Patents
Epdm rubber compositionInfo
- Publication number
- JPS5661439A JPS5661439A JP13703779A JP13703779A JPS5661439A JP S5661439 A JPS5661439 A JP S5661439A JP 13703779 A JP13703779 A JP 13703779A JP 13703779 A JP13703779 A JP 13703779A JP S5661439 A JPS5661439 A JP S5661439A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- fatty acid
- quick lime
- epdm
- 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.)
- Granted
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
PURPOSE: A rubber composition which can be vulcanized into a bubble-free vulcanizate having improved compression set, prepared by compounding EPDM with both quick lime and a higher saturated fatty acid.
CONSTITUTION: One hundred (100)pts.wt. of EPDM is compounded with both 1W 20pts.wt. of quick lime and 2.5W10pts.wt. of a C710 higher saturated fatty acid. As the quick lime used, one having a particle size of below 150μ is preferred. This compounding is effective to prevent formation of bubbles of water in a vulcanization system under a substantially zero external pressure. The C710 higher fatty acid (for example stearic acid) is required to be a fatty acid which is low in unsaturated acid content, because unsaturated acids such as oleic acid and linoleic acid prevent vulcanization, lower tensile strength, etc. of vulcanizates and cause oxidative deterioration.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13703779A JPS5661439A (en) | 1979-10-25 | 1979-10-25 | Epdm rubber composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13703779A JPS5661439A (en) | 1979-10-25 | 1979-10-25 | Epdm rubber composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5661439A true JPS5661439A (en) | 1981-05-26 |
JPS6144101B2 JPS6144101B2 (en) | 1986-10-01 |
Family
ID=15189369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13703779A Granted JPS5661439A (en) | 1979-10-25 | 1979-10-25 | Epdm rubber composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5661439A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63156051A (en) * | 1986-12-18 | 1988-06-29 | 日本特殊塗料株式会社 | Vibration damping seat for vehicle |
US5039756A (en) * | 1988-07-08 | 1991-08-13 | Sumitomo Chemical Co., Ltd. | Vulcanizable epoxy group-containing elastomer composition |
-
1979
- 1979-10-25 JP JP13703779A patent/JPS5661439A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63156051A (en) * | 1986-12-18 | 1988-06-29 | 日本特殊塗料株式会社 | Vibration damping seat for vehicle |
US5039756A (en) * | 1988-07-08 | 1991-08-13 | Sumitomo Chemical Co., Ltd. | Vulcanizable epoxy group-containing elastomer composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6144101B2 (en) | 1986-10-01 |
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