Compatibilized Tire Tread Compositions
    1.
    发明申请
    Compatibilized Tire Tread Compositions 有权
    相容的轮胎胎面组合

    公开(公告)号:US20160152758A1

    公开(公告)日:2016-06-02

    申请号:US14902927

    申请日:2014-07-15

    IPC分类号: C08F299/00 C08L9/06

    摘要: A polyolefin-polybutadiene block-copolymer and a tire tread composition comprising the polyolefin-polybutadiene block-copolymer, the composition comprising, by weight of the composition, within the range from 15 to 60 wt % of a styrenic copolymer, processing oil, filler, a curative agent, and from 4 to 20 wt % of a polyolefin-polybutadiene block-copolymer, wherein the polyolefin-polybutadiene block-copolymer is a block copolymer having the general formula PO-XL-fPB; where “PO” is a polyolefin block having a weight average molecular weight within the range from 1000 to 150,000 g/mole, the “fPB” is a functionalized polar polybutadiene block having a weight average molecular weight within the range from 500 to 30,000 g/mole, and “XL” is a cross-linking moiety that covalently links the PO and fPB blocks; and wherein the maximum Energy Loss (Tangent Delta) of the immiscible polyolefin domain is a temperature within the range from −30° C. to 10° C.

    摘要翻译: 包含聚烯烃 - 聚丁二烯嵌段共聚物的聚烯烃 - 聚丁二烯嵌段共聚物和轮胎胎面组合物,所述组合物按所述组合物的重量计在苯乙烯共聚物的15-60wt%范围内,加工油,填料, 固化剂和4〜20重量%的聚烯烃 - 聚丁二烯嵌段共聚物,其中聚烯烃 - 聚丁二烯嵌段共聚物是具有通式PO-XL-fPB的嵌段共聚物; 其中“PO”是重均分子量为1000〜150,000g / mol的聚烯烃嵌段,“fPB”为重均分子量在500〜30,000g / mol之间的官能化极性聚丁二烯嵌段, 摩尔,“XL”是共价连接PO和fPB嵌段的交联部分; 并且其中不混溶聚烯烃领域的最大能量损失(切线三角洲)是在-30℃至10℃的范围内的温度。