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1. 发明授权

US5975173A Pneumatic tire using fiber composite material 失效
标题翻译：气动轮胎采用纤维复合材料
公开(公告)号：US5975173A
公开(公告)日：1999-11-02
申请号：US740952
申请日：1996-11-05
申请人： Ryuji Izumoto , Teruo Miura , Koshiro Monji , Shinichi Iwasaki , Kentaro Fujino , Masayuki Ohashi
发明人： Ryuji Izumoto , Teruo Miura , Koshiro Monji , Shinichi Iwasaki , Kentaro Fujino , Masayuki Ohashi
IPC分类号： B60C11/00 , C08J5/04 , C08J9/00 , B60C1/00 , B60C11/12
CPC分类号： C08J5/046 , B60C11/00 , C08J9/0085 , B60C2011/147 , C08J2307/00 , C08J2309/00 , C08J2321/00 , Y10S152/03 , Y10T152/10513
摘要： A fiber composite material in which short fibers, such as polyester short fibers, are added to a matrix, such as a cross-linked rubber matrix, is provided, wherein a heat shrinkage ratio of the short fibers is 8% or less at fiber composite material molding temperatures of 140 to 200.degree. C. Also provided is a pneumatic tire in whose tire tread the fiber composite material is used. Such pneumatic tires include pneumatic tires provided with a foamed rubber layer in a tire tread. The foamed rubber layer has an average cell diameter of 10 to 120 .mu.m and an expansion ratio of 3 to 50%. A solid phase rubber portion of the foamed rubber layer includes 5 to 55 parts by weight of carbon black, 55 to 5 parts by weight of silica, and 1 to 15 parts by weight of short fibers to 100 parts by weight of a diene-base rubber component including 70 to 20 parts by weight of natural rubber and 30 to 80 parts by weight of polybutadiene rubber. A surface of the tire tread has a hardness of 52 or less at 0.degree. C. The short fibers have a length which is from 0.5 to 3 mm and which is shorter than a minimum gap between sipes of a tire surface, a diameter of 30 to 100 .mu.m, an aspect ratio of 5 to 100, and a heat shrinkage ratio of 8% or less at 140 to 200.degree. C. On-ice performance of the pneumatic tire of the present invention is excellent.
摘要翻译：提供了一种纤维复合材料，其中将诸如聚酯短纤维的短纤维添加到诸如交联橡胶基质的基质中，其中在纤维复合材料中短纤维的热收缩率为8％以下材料成型温度为140〜200℃。还提供了一种充气轮胎，其轮胎胎面使用纤维复合材料。这种充气轮胎包括在轮胎胎面中设置有发泡橡胶层的充气轮胎。发泡橡胶层的平均泡孔直径为10〜120μm，发泡倍率为3〜50％。发泡橡胶层的固相橡胶部分包含5至55重量份的炭黑，55至5重量份的二氧化硅和1至15重量份的短纤维至100重量份的二烯基橡胶组分包括70至20重量份的天然橡胶和30至80重量份的聚丁二烯橡胶。轮胎胎面的表面在0℃下的硬度为52以下。短纤维的长度为0.5〜3mm，比轮胎表面的刀槽花纹之间的最小间隙短，直径为30 至100μm，纵横比为5〜100，在140〜200℃下的热收缩率为8％以下。本发明的充气轮胎的冰上性能优异。

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