发明名称 |
Rubber composition and fuel tank packing for automobile using the composition |
摘要 |
Provided is a rubber composition, which is excellent in fuel permeation resistance, and is capable of achieving improvements in low-temperature embrittlement property and solvent crack property. The rubber composition includes: a fluororubber having a fluorine concentration content of 70 to 71 wt % as a main component; a crosslink-type agent; and the following components (A) and (B), in which: the total content [(A)+(B)] of the above-mentioned components (A) and (B) falls within the range of 17 to 25 parts by weight with respect to 100 parts by weight of the above-mentioned fluororubber; and a weight ratio (A)/(B) of the content of the above-mentioned component (A) to the content of the above-mentioned component (B) falls within the range of 2.0/1 to 3.0/1: (A) barium sulfate; and (B) a neutral silica. |
申请公布号 |
US8686078(B2) |
申请公布日期 |
2014.04.01 |
申请号 |
US201113191942 |
申请日期 |
2011.07.27 |
申请人 |
NODA MASASHI;MATSUNAGA EIJI;TOKAI RUBBER INDUSTRIES, LTD. |
发明人 |
NODA MASASHI;MATSUNAGA EIJI |
分类号 |
C08K3/30 |
主分类号 |
C08K3/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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