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method for controlling selectively the ability self sealant of a tire and tire auto sealant for wheels of vehicles
method for controlling selectively the ability self sealant of a tire and tire auto sealant for wheels of vehicles
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机译:选择性控制轮胎性能的方法和汽车车轮的轮胎自动密封剂
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摘要
A method of selectively controlling the self-sealing ability of a tire obtained by application of a sealing assembly on a drum and subsequent formation thereon of a precursor of a green tire inclusive of liner and carcass, followed by shaping, curing and molding. The sealing assembly includes: a self-supporting thermoplastic film of polyamide or polyester and a layer of sealing material possessing viscoelasticity and stickiness features, which is associated with and supported by the self-supporting thermoplastic film. The sealing assembly is easily puncturable by a sharp-pointed element while it maintains such a deformability and stickiness that it helps in the transfer of the sealing material during ejection of the sharp-pointed element and limits the transferred material amount to such an extent that holes bigger than a predetermined value are not sealed.
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