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    • 1. 发明授权
    • Pneumatic tire
    • 气动轮胎
    • US06334476B1
    • 2002-01-01
    • US08924646
    • 1997-09-05
    • Nobuyuki OkamuraMasahiro Hojo
    • Nobuyuki OkamuraMasahiro Hojo
    • B60C100
    • C08K5/5398B60C1/0016Y10T152/10855C08L21/00C08L9/06
    • A pneumatic tire comprising a tread, wherein the rubber composition of the tread layer comprises 50 parts by weight or more of SBR in 100 parts by weight of the rubber component and, in an amount of 0.2 to 5.0 parts by weight per 100 parts by weight of the rubber component, a vulcanization accelerator represented by the following general formula (I): wherein R1 and R2 each independently represents an alkyl group having 1 to 10 carbon atoms which may be linear, branched, or cyclic or an aryl group having 6 to 10 carbon atoms. The pneumatic tire shows excellent controllability at high speed.
    • 一种包括胎面的充气轮胎,其中所述胎面层的橡胶组合物在100重量份的所述橡胶组分中包含50重量份或更多的SBR,并且以每100重量份计0.2至5.0重量份 的橡胶组分,由以下通式(I)表示的硫化促进剂:其中R 1和R 2各自独立地表示可以是直链,支链或环状的具有1〜10个碳原子的烷基或具有6〜 10个碳原子。 充气轮胎在高速下显示出优异的可控性。
    • 2. 发明授权
    • Pneumatic tire
    • 气动轮胎
    • US06197868B1
    • 2001-03-06
    • US09187407
    • 1998-11-06
    • Nobuyuki OkamuraMasahiro Hojo
    • Nobuyuki OkamuraMasahiro Hojo
    • C08K300
    • C08K5/17C08K5/5398C08L21/00
    • A pneumatic tire having a tread layer. A rubber composition of the tread layer includes a specific diene-based rubber component, and either a specific zinc dithiophosphate vulcanization accelerator, or a specific zinc dithiophosphate vulcanization accelerator and a benzothiazole vulcanization accelerator. The zinc dithiophosphate vulcanization accelerator is contained in an amount of 0.2 to 5.0 parts by weight per 100 parts by weight of the rubber component. A molar amount of the benzothiazole vulcanization accelerator is one-half or more of a molar amount of the zinc dithiophosphate vulcanization accelerator. Further, the rubber composition contains a white filler in an amount of 15 parts by weight or more per 100 parts by weight of the rubber component. Produceability of the pneumatic tire is excellent, and a low heat build-up performance thereof is improved without any adverse effects on gripping performance.
    • 一种具有胎面层的充气轮胎。 胎面层的橡胶组合物包括特定的二烯系橡胶成分,特定的二硫代磷酸锌硫化促进剂,特定的二硫代磷酸锌锌硫化促进剂和苯并噻唑硫化促进剂。 二硫代磷酸锌硫化促进剂的含量相对于100重量份的橡胶成分为0.2〜5.0重量份。 苯并噻唑硫化促进剂的摩尔量为二硫代磷酸锌硫化促进剂的摩尔量的一半以上。 此外,橡胶组合物含有每100重量份橡胶组分为15重量份以上的白色填料。 充气轮胎的生产性优异,并且其发热性能低,而对夹持性能没有任何不利影响。
    • 10. 发明授权
    • Pneumatic tire
    • 橡胶组成
    • US5939493A
    • 1999-08-17
    • US998551
    • 1997-12-24
    • Masahiro Hojo
    • Masahiro Hojo
    • C08K5/17C08K5/5398C08C19/00
    • C08K5/17C08K5/5398
    • A rubber composition comprising 100 parts by weight of a rubber component which comprises at least one type of rubber selected from the group consisting of natural rubber and diene synthetic rubbers, 0.1 to 10 parts by weight of at least one type of metal dithiophosphate represented by the following general formula, optionally 15 to 85 parts by weight of a reinforcing inorganic filler, and optionally a specific tertiary amine compound in an amount of 0.5 to 15% by weight of the amount of the reinforcing inorganic filler is provided.General formula ##STR1## wherein R.sup.1 and R.sup.3 each independently represents an alkyl group or a cycloalkyl group, M represents an antimony atom, a zinc atom, a copper atom, or an iron atom, and n represents a valency of M.The rubber composition of the present invention exhibits excellent resistance to heat or resistance to heat aging (particularly excellent resistance to hardening and excellent fracture properties).
    • 一种橡胶组合物,其包含100重量份的橡胶组分,其包含至少一种选自天然橡胶和二烯合成橡胶的橡胶,0.1至10重量份的至少一种由 按照通式,可提供任选的15至85重量份的增强无机填料,以及任选的加成无机填料量的0.5至15重量%的特定叔胺化合物。 通式其中R 1和R 3各自独立地表示烷基或环烷基,M表示锑原子,锌原子,铜原子或铁原子,n表示M的化合价。本发明的橡胶组合物 本发明具有优异的耐热性或耐热老化性(特别优异的耐硬化性和优异的断裂性)。