Rubber composition.U.S. patent: 7,119,147 Issued: October 10, 2006 Inventor: Naohiko Kikuchi Assigned: Sumitomo Rubber Industries Sumitomo Rubber Industries, Ltd. (住友ゴム工業株式会社 Key statement: A rubber composition which prevents the rise in rubber hardness over time and can maintain good performance on snow and ice over a long period, includes (A) a diene Dienes are hydrocarbons which contain two double bonds. Dienes are intermediate between alkenes and polyenes. Classes Dienes can be divided into three classes:
n. A fatty acid, such as oleic acid, whose carbon chain possesses one or more double or triple bonds and hence can incorporate additional hydrogen atoms. , a tan [delta] peak temperature Tg of at most -50[degrees]C. |
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