The invention provides a rubber composition with good color fastness for colored tire sidewalls. The rubber composition comprises the following materials in parts by weight: 100 parts of matrix rubber, 30-40 parts of an active filler, 20-30 parts of a coloring filler, 5-7 parts of paraffin oil, 5-7 parts of an activator, 2-3 parts of a silane coupling agent, 1-2 parts of light-color tackifying resin, 4-6 parts of a non-staining antioxidant, 1-12 parts of a vulcanizer, 3-5 parts of a promoter, 3-6 parts of an organic coloring agent and 1-2 parts of an ultraviolet light absorber. A sidewall prepared from the rubber composition has a bright color and relatively good color fastness; and a tire with a dark-color sidewall is free from discoloring within one year under strong sunlight illumination or in a damp and hot environment, and even a tire with a light-color sidewall is free from obvious discoloring within three months under strong sunlight illumination or in a damp and hot environment. The sidewall prepared from the composition has higher tearing resistance, approximate flexing resistance and aging resistance than a black sidewall. Compared with a general colored sidewall, the sidewall prepared from the composition maintains extremely good color fastness under severe working conditions of strong sunlight illumination, dampness and heat.


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    Title :

    Rubber composition with good color fastness for colored tire sidewalls


    Contributors:
    DONG KANG (author) / LU SHANGBIN (author) / SHAN PENG (author) / MA RUILIN (author)

    Publication date :

    2015-04-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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