LIGNIN COMPOSITION AND USE THEREOF
    1.
    发明公开

    公开(公告)号:US20240010798A1

    公开(公告)日:2024-01-11

    申请号:US18252445

    申请日:2021-12-21

    Abstract: A lignin composition containing two or more compounds represented by the following formula (1), where the total content of the compounds is 0.06% by mass or more:




    where in the formula, Ra is a hydrogen atom, a methyl group, an ethyl group, a furyl group, a hydroxymethylfuryl group, a hydroxyphenyl group, a hydroxymethoxyphenol group, or a hydroxydimethoxyphenol group; Rc1 and Rc2 are independently a hydroxyl group, an alkoxy group, an amino group, or a thiol group; R11 to R20 are independently a hydrogen atom, a hydroxyl group, a hydrocarbon group including 1 to 15 carbon atoms, a hydrocarbon ether group including 1 to 15 carbon atoms, or a group containing a carbonyl group.

    PNEUMATIC TIRE
    10.
    发明申请
    PNEUMATIC TIRE 有权
    气动轮胎

    公开(公告)号:US20160368324A1

    公开(公告)日:2016-12-22

    申请号:US14900501

    申请日:2014-06-13

    Inventor: Tatsuya MIYAZAKI

    Abstract: The present invention provides a pneumatic tire capable of preventing discoloration while exhibiting good TGC resistance even after the tire having a reduced sub-tread thickness at the base of the tread main groove is stored. The present invention relates to a pneumatic tire including a tread portion, the tread portion including a jointless band and at least two tire components selected from the group consisting of a cap tread, a base tread, and an undertread, the rubber composition for cap treads having an amount of phenylenediamine antioxidant of a specific value or less, the cap tread, the base tread, the undertread, and the upper layer of the jointless band having amounts of phenylenediamine antioxidant satisfying a specific relational expression, the rubber composition for undertreads containing a specific amount of sulfur, the pneumatic tire having a sub-tread thickness at the base of the tread main groove of 0.5 to 2.0 mm.

    Abstract translation: 本发明提供了即使在胎面主槽的底部具有减小的胎面胎面厚度的轮胎被存储之后,也能够防止变色而具有良好的耐TGC性的充气轮胎。 本发明涉及一种充气轮胎,其包括胎面部分,所述胎面部分包括无接缝带和至少两个轮胎部件,所述轮胎部件选自帽胎面,胎面基部和胎面帘布层,所述胎面部分用橡胶组合物 具有一定量以上的苯二胺抗氧化剂的量,具有满足特定关系式的苯二胺抗氧化剂的无胎带的胎面胎面,基底胎面,底面和上层,用于含有 特定量的硫,胎面主槽底部的胎面胎面厚度为0.5〜2.0mm的充气轮胎。

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