The invention provides a rubber composition for a winter tire and the winter tire. The rubber composition comprises: a 100 PHR rubber component; 40 to 200 PHR of a white carbon black component; reinforcing carbon black of 5 to 15 PHR; 8 to 12 PHR of a coupling agent; a processing oil in the range of from 10 to 25 PHR; 10 to 25 PHR of petroleum resin; 1 to 3 PHR of old-age prevention components; 2 to 5 PHR of an active agent; and a vulcanizing component; the rubber component comprises 0 to 20 PHR of butadiene rubber and 80 to 100 PHR of butadiene styrene rubber; the white carbon black component comprises first white carbon black and second white carbon black in a certain proportion, the BET specific surface area of the first white carbon black is 80-90 m < 2 >/g, and the BET specific surface area of the second white carbon black is 125-140 m < 2 >/g. By applying the rubber composition disclosed by the invention, the rolling resistance performance of the tire is not changed, and the winter performance such as road holding force of a tread on a snowy road surface can be greatly improved.
本申请提供了一种用于冬季胎的橡胶组合物与冬季轮胎,该橡胶组合物包括:100PHR的橡胶组分;40~200PHR的白炭黑组分;5~15PHR的补强碳黑;8~12PHR的偶联剂;10~25PHR的加工油;10~25PHR的石油树脂;1~3PHR的老防组分;2~5PHR的活性剂;以及硫化组分;所述橡胶组分包含0~20PHR顺丁橡胶和80~100PHR丁苯橡胶;所述白炭黑组分包含一定比例第一白炭黑和第二白炭黑,第一白炭黑的BET比表面积为80~90m2/g,第二白炭黑的BET比表面积为125~140m2/g。应用本发明该橡胶组合物,保证轮胎滚阻性能不变,且可大幅度增加胎面在积雪路面的抓地力等冬季性能。
Rubber composition for winter tire and winter tire
一种用于冬季胎的橡胶组合物与冬季轮胎
21.10.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
RUBBER COMPOSITION FOR WINTER TIRE TREAD, AND WINTER TIRE
Europäisches Patentamt | 2021
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