The present invention relates to [1] a rubber composition exhibiting excellent grip force, which contains (A) a rubber component, (B) a lignin degradation product having an aldehyde yield, according to an alkaline nitrobenzene oxidation method, of 12% by mass or more, and (C) an anti-aging agent; [2] a shoe sole using the rubber composition of the above [1]; and [3] a grip force improving agent for rubber compositions, containing (B) a lignin degradation product having an aldehyde yield, according to an alkaline nitrobenzene oxidation method, of 12% by mass or more, as an active ingredient.
本发明涉及[1]一种具有优异抓地力的橡胶组合物,该组合物含有(A)橡胶成分,(B)
木质素降解产物,根据碱性
硝基苯氧化法,该降解产物的醛产率为12%(质量百分比)或以上,以及(C)抗老化剂;[2]使用上述[1]的橡胶组合物的鞋底;以及[3]用于橡胶组合物的抓地力改进剂,其活性成分含有(B)
木质素降解产物,根据碱性
硝基苯氧化法,该产物的醛产率为 12%(按质量计)或更高。