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    • 14. 发明授权
    • Self-sealing pneumatic tire
    • 自密封充气轮胎
    • US4228839A
    • 1980-10-21
    • US930769
    • 1978-08-03
    • Georg G. A. BohmMario DeTrano
    • Georg G. A. BohmMario DeTrano
    • C08L23/00B29C73/18B29C73/20B29D30/00C08L7/00C08L21/00C08L33/00C08L33/02C08L51/00C08L51/02C08L57/00C08L77/00C08L101/00C09K3/10B60C5/14B60C17/00
    • B60C19/12B29D30/0005B29D30/0685B29D2030/0686B29D2030/069B29D2030/0694B29D2030/0695Y10T152/10684
    • This disclosure relates to a self-sealing pneumatic tire with puncture sealing properties and a method of manufacturing such a tire. The puncture sealant properties of the self-sealing tire are provided by a layer comprised of a blend of a crosslinked polymeric material and an irradiation degraded polymeric material. The method of this disclosure comprises providing a layer of rubber compound with a blend of polymeric materials, one of which degrades upon exposure to irradiation and another which crosslinks either on exposure to irradiation, by chemical reaction at vulcanization temperature, or both, assembling the layer into an unvulcanized tire in situ with the polymeric materials unaltered, vulcanizing the tire without altering the degradable polymeric material and irradiating the tire whereby the degradable polymeric material is degraded to a low viscosity to form a tacky material and the crosslinkable polymeric material is crosslinked to form an elastic matrix for the degraded polymeric material, whereby the layer has puncture sealing properties.
    • 本公开涉及具有穿孔密封性能的自密封充气轮胎和制造这种轮胎的方法。 自密封轮胎的穿刺密封剂性质由由交联的聚合物材料和辐射降解的聚合物材料的共混物组成的层提供。 本公开的方法包括提供一层橡胶化合物与聚合材料的混合物,其中一种在暴露于照射时降解,另一种在暴露于照射下交联,在硫化温度下通过化学反应或两者交联,组合层 进入未硫化的轮胎,其中聚合材料未改变,硫化轮胎而不改变可降解的聚合物材料并照射轮胎,由此可降解的聚合物材料降解至低粘度以形成粘性材料,并且可交联的聚合物材料被交联以形成 用于降解的聚合物材料的弹性基质,由此该层具有穿刺密封性能。