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    Sealant product, laminate thereof, and pneumatic tire constructed therewith
    43.
    发明授权
    Sealant product, laminate thereof, and pneumatic tire constructed therewith 失效
    密封剂产品，其层压材料和由其构成的充气轮胎

    公开(公告)号：US4913209A

    公开(公告)日：1990-04-03

    申请号：US80842

    申请日：1987-08-03

    申请人： Sung W. Hong ,  Philip J. Cangelosi

    发明人： Sung W. Hong ,  Philip J. Cangelosi

    IPC分类号： B60C5/14 ,  B29C73/16 ,  B29C73/20 ,  B29D30/06 ,  B29D30/08 ,  B29L30/00 ,  B32B25/04 ,  B60C1/00 ,  C08L21/00 ,  C08L23/16 ,  C08L23/22 ,  C09J7/02 ,  C09J121/00 ,  C09J123/16 ,  C09J123/22 ,  C09K3/10

    CPC分类号： B29D30/0685 ,  B29C73/163 ,  B29C73/20 ,  B60C19/122 ,  C08L21/00 ,  C08L23/16 ,  C08L23/22 ,  C08L7/00 ,  C09J121/00 ,  C09J123/16 ,  C09J123/22 ,  C09J7/0214 ,  C09J7/0271 ,  B29D2030/0686 ,  B29D2030/069 ,  B29D2030/0695 ,  B29L2030/00 ,  C08K5/01 ,  C08L2207/324 ,  C08L25/04 ,  C08L29/04 ,  Y10T152/10684

    摘要： A carcass for a self-sealing pneumatic tire is constructed by starting with an extruded thin flat strip of puncture sealant both surfaces of which are detackified. The strip is place on a building drum and its upper surface is wiped clean so that an inner liner may be adhered to it. Thereafter, the carcass is conventionally completed with superimposed successive layers of belts, and tread along with bead rings, etc. The carcass is then cured in a conventional curing press so that the sealant is cured by contact with the curing bladder. The curing sealant is not restrained in any way, but does not flow. Alternatively, a laminate of the sealant is formed with the inner liner, with only the exposed surface of the sealant detackified so that it adheres neither to the building drum nor to the curing bladder. The detackifier remains on the sealant. The recipe for this effective sealant product requires a ratio of high molecular weight elastomer to low molecular weight elastomer greater than 1; also, that there be at least as much, by weight processing aid as there is high mol wt elastomer. Such a recipe has a room temperature peak Mooney viscosity above 70, and, after curing, a peak Mooney viscosity at 150.degree. F. in the range above 15 but below 30. A combination of homogenizer and tackifier facilitates maintaining the necessary viscosity of the uncured sealant recipe. The tire provides excellent self-sealing results.

    摘要翻译： 用于自密封充气轮胎的胎体通过从两个表面被脱粘的挤出的薄的扁平扁平带开始构成。 条带放置在建造鼓上，其上表面被擦拭干净，使得内衬可以粘附到其上。 此后，胎体通常以叠加的连续的带层和胎圈与胎圈环等一起完成。然后，在常规的固化压榨机中将胎体固化，使得密封剂通过与固化囊接触来固化。 固化密封剂不以任何方式约束，但不流动。 或者，密封剂的层压体由内衬形成，只有密封剂的暴露表面被非粘性化，使得它既不粘附到构建滚筒也不粘附到固化囊上。 防粘剂保留在密封剂上。 该有效密封剂产品的配方要求高分子量弹性体与低分子量弹性体的比例大于1; 同样，由于存在高摩尔重量的弹性体，所以加工助剂的重量至少要少得多。 这种配方具有高于70的室温峰值门尼粘度，并且在固化后，在150°F下的峰值门尼粘度在15以上但低于30℃。均化器和增粘剂的组合有助于保持未固化的必要粘度 密封剂配方。 轮胎提供优异的自密封结果。