Pneumatic tire
    43.
    发明授权

    公开(公告)号:US10967677B2

    公开(公告)日:2021-04-06

    申请号:US15469869

    申请日:2017-03-27

    摘要: There is provided a pneumatic tire having improved wet grip performance and fuel efficiency in a good balance. The pneumatic tire is provided with a tread composed of a rubber composition comprising not less than 0.5 part by mass of silica and not less than 5 parts by mass of a resin based on 100 parts by mass of a rubber component comprising 40 to 100% by mass of a styrene-butadiene rubber and 0 to 60% by mass of a butadiene rubber, wherein an adhesive force of the rubber composition measured by the specified adhesion test method is not less than 300 when an adhesive force of a reference rubber composition wherein the whole amount of resin has been replaced by oil is assumed to be 100, and a ratio of a loss tangent tan δ0° C. at 0° C. of the rubber composition to a loss tangent tan δ70° C. at 70° C. of the rubber composition (tan δ0° C./tan δ70° C. is from 3.0 to 10.

    DEDUST METHODS AND COMPOSITIONS FOR TREATMENT OF MINERAL FIBERS

    公开(公告)号:US20210040324A1

    公开(公告)日:2021-02-11

    申请号:US17041383

    申请日:2018-04-17

    发明人: Frank P. LOCHEL

    摘要: Mineral fiber processing is carried out by applying a dedust composition comprising a non-polar, plant-based, bodied oil having an acid value that is less than or equal to about 5 mg KOH/g, an iodine value of 60 to 120, a tan delta ranging from 0.0002 to 0.01 (at 25 C.), and a viscosity of from about 350 cSt to about 750 cSt at 40 C. to mineral fiber. The non-polar, plant-based, bodied oil provides a dedust fluid that is sourced from renewable resources and is surprisingly effective as a dedusting agent in the challenging environment of preparation of bonded mineral fiber-containing products.

    Pneumatic Tire
    47.
    发明申请

    公开(公告)号:US20210039437A1

    公开(公告)日:2021-02-11

    申请号:US16967715

    申请日:2019-02-04

    发明人: Miyuki Oka

    摘要: A pneumatic tire includes a main groove in a tread portion. The main groove has a groove depth of from 7 mm to 11 mm. A rubber composition for a tread constituting the tread portion includes a natural rubber, a styrene-butadiene rubber, and a butadiene rubber as a rubber component. The average glass transition temperature of the rubber component is −50° C. or lower. Silica is compounded in the rubber composition for a tread at 50 parts by mass to 100 parts by mass per 100 parts by mass of the rubber component. The compounded amount of the silica is 80 mass % or more of the total amount of carbon black and silica. Aroma oil is compounded in the rubber composition for a tread at 40 mass % or less relative to the amount of silica.