发明名称 |
RUBBER COMPOSITION AND MOLDED ARTICLE |
摘要 |
The rubber composition contains the following component (A), the following component (B), and the following component (C). The component (A) is an ethylene-α-olefin-nonconjugated polyene copolymer rubber containing an ethylene unit, an α-olefin unit, and a nonconjugated polyene unit, a number of carbon atoms of the α-olefin unit is 3 to 20, a limiting viscosity measured in 135° C. tetralin is 2.8 dl/g to 5 dl/g, a content of the ethylene unit is 70 mol % to 90 mol % (where a total of the content of the ethylene unit and a content of the α-olefin unit in the component (A) is 100 mol %), and a content of the nonconjugated polyene unit is 2 wt % to 20 wt % (where a total amount of the component (A) is 100 wt %); the component (B) is an organic peroxide; and the component (C) is a thermosetting prepolymer. |
申请公布号 |
US2016304710(A1) |
申请公布日期 |
2016.10.20 |
申请号 |
US201415105878 |
申请日期 |
2014.12.18 |
申请人 |
Sumitomo Chemical Company, Limited |
发明人 |
TAKEZAWA Tetsuji;NAKANO Sadayuki |
分类号 |
C08L23/16 |
主分类号 |
C08L23/16 |
代理机构 |
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代理人 |
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主权项 |
1. A rubber composition comprising the following component (A), the following component (B), and the following component (C), wherein:
the component (A) is an ethylene-α-olefin-nonconjugated polyene copolymer rubber containing an ethylene unit, an α-olefin unit and a nonconjugated polyene unit, a number of carbon atoms of the α-olefin unit is 3 or more and 20 or less, a limiting viscosity measured in 135° C. tetralin is 2.8 dl/g or more and 5 dl/g or less, a content of the ethylene unit is 70 mol % or more and 90 mol % or less (where a total of the content of the ethylene unit and a content of the α-olefin unit in the component (A) is 100 mol %), and a content of the nonconjugated polyene unit is 2% by weight or more and 20% by weight or less (where a total amount of the component (A) is 100wt % by weight); the component (B) is an organic peroxide; and the component (C) is a thermosetting prepolymer. |
地址 |
Tokyo JP |