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    • 4. 发明申请
    • PNEUMATIC TIRE
    • 气动轮胎
    • US20120077902A1
    • 2012-03-29
    • US12889737
    • 2010-09-24
    • Pascal Patrick SteinerMarc WeydertChristian Jean-Marie Kaes
    • Pascal Patrick SteinerMarc WeydertChristian Jean-Marie Kaes
    • B60C1/00
    • B60C1/0016C08K3/04C08K3/36C08K5/548C08L9/00C08L9/06C08L91/00C08L2205/025Y10T152/10495
    • The invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, expressed as parts by weight per 100 parts by weight of elastomer (phr), (A) 30 to 70 phr of a first styrene-butadiene rubber, wherein the first styrene-butadiene rubber is i) a solution-polymerized styrene-butadiene rubber with a bound styrene content of from 30 to 50 percent by weight, a vinyl 1,2 content of from 10 to 40 percent by weight based on the rubber weight, and a Tg of from about −40° C. to about —20° C.; or ii) an emulsion-polymerized styrene-butadiene rubber with a bound styrene content of from 30 to 50 percent by weight, and a Tg of from about −40° C. to about −20° C.; (B) 20 to 60 phr of a second styrene-butadiene rubber, wherein the second styrene-butadiene rubber is a solution-polymerized styrene-butadiene rubber with a bound styrene content of from 25 to 45 percent by weight, a vinyl 1,2 content of from 20 to 60 percent by weight based on the rubber weight, and a Tg of from about −30° C. to about −5° C.; (C) 5 to 20 phr of cis-1,4 polybutadiene having a Tg of from −110° C. to −90° C.; (D) 30 to 60 phr of processing oil; (E) 5 to 20 phr of carbon black having an Iodine absorption ranging from 130 to 210 g/kg according to ASTM D-1510 and an oil absorption ranging from 110 to 140 cc/100 g according to ASTM D-2414; (F) 80 to 130 phr of silica; (G) 0.5 to 20 phr of a sulfur containing organosilicon compound; and (H) 5 to 20 phr of resin.
    • 本发明涉及具有胎面的充气轮胎,该胎面包括可硫化橡胶组合物,其包含按每100重量份弹性体(phr)表示的重量份,(A)30至70phr的第一丁苯橡胶,其中 第一丁苯橡胶是i)结合苯乙烯含量为30至50重量%的溶液聚合苯乙烯 - 丁二烯橡胶,基于橡胶重量的乙烯基1,2-含量为10至40重量% ,Tg为约-40℃至约-20℃; 或ii)结合苯乙烯含量为30至50重量%,Tg为约-40℃至约-20℃的乳液聚合的丁苯橡胶; (B)20至60phr的第二丁苯橡胶,其中第二丁苯橡胶是结合苯乙烯含量为25至45重量%的溶液聚合苯乙烯 - 丁二烯橡胶,乙烯基1,2- 基于橡胶重量,含量为20至60重量%,Tg为约-30℃至约-5℃。 (C)5至20phr的Tg为-10℃至-90℃的顺式-1,4-聚丁二烯; (D)30〜60phr加工油; (E)根据ASTM D-1510,5至20phr的碘吸收范围为130至210g / kg,根据ASTM D-2414的吸油量为110至140cc / 100g; (F)80〜130phr二氧化硅; (G)0.5〜20phr含硫有机硅化合物; 和(H)5〜20phr树脂。