Honda Giken Kogyo Kabushiki Kaisha

Nippon Leakless Industry Co., Ltd.

Nippon Leakless Kogyo Kabushiki Kaisha

Nippon Leakless Ind. Co., Ltd.

Ken Fujiwara

Hiroyuki Nakano

Tsutomu Tomizawa

Masamichi Hoshi

Yoshihiko Tatemichi

Toshio Yamagiwa

Akira Tanaka

Akiko Tanaka

Noriyuki Deguchi

Fumiya Shigeta

Hiromi Kitayama

Kentaro Yamashita

The viscosity of a puncture-preventing sealant () is set in a range of 25 to 35 dPa&#xb7;s, and a thixotropy index is set in a range of 6.5 to 11.0, the sealant () being filled in a sealant chamber () defined to extend along an outer periphery of an air chamber () in a tire (T). When the tire (T) is being rotated by traveling of a vehicle, the viscosity of the sealant () is reduced by a stirring action provided by a vibration or a centrifugal force of the sealant (), whereby the sealant () can be diffused uniformly in the sealant chamber (). When the vehicle has been stopped and the stirring action has been extinguished, the viscosity of the sealant () is increased, whereby the sealant () is maintained in a state in which it has been diffused uniformly in the sealant chamber () without flowing downwards in the sealant chamber () by gravitation. Therefore, even when the vehicle is travelling at a high speed, the generation of a vibration and a noise can be prevented. In this manner, the puncture-preventing sealant is provided, which has such a nature that the sealant is easy to flow due to a low viscosity during traveling of a vehicle, and the sealant is difficult to flow due to a high viscosity when the sealant is left to stand.

Sealant for prevention of blowout, tubeless tire, and tire tube

A reclaimed joint sheet used as a gasket or packing member for automobiles, ships and the like consists of a first layer of a joint sheet made from a given composition, a second layer of a joint sheet made by mixing finely pulverized pieces of the joint sheet after the punching out of the joint sheet having a given particle size with the same composition for the formation of the joint sheet, and a third layer of the same joint sheet as the first layer.

Method of producing reclaimed joint sheet and the reclaimed jointsheet

A reclaimed joint sheet used as a gasket or packing member for automobiles, ships and the like consists of a first layer of a joint sheet made from a given composition, a second layer of a joint sheet made by mixing finely pulverized pieces of the joint sheet after the punching out of the joint sheet having a given particle size with a composition for the formation of the joint sheet, and a third layer of a joint sheet containing the same components as the first layer.

Reclaimed joint sheet

A compressed sheet comprises: base fibers constituted by inorganic fibers other than asbestos, or organic fibers, or a combination of both; a rubber; rubber chemicals; and fillers. In the compressed sheet a material with both smoothing and reinforcing effects is exposed at least to one of the surfaces of the compressed sheet. A method of manufacturing a compressed sheet comprises the steps of processing a composition for forming the compressed sheet by feeding it into a pair of rolls comprising a hot roll and a cold roll, thereby laminating the composition into a sheet-shaped material on the hot roll, and then peeling off the sheet-shaped laminated material. In this method the composition is fed into the rolls such that a material with both smoothing and reinforcing effects is exposed at least to that surface of the sheet-shaped laminated material which faces the cold roll.

Compressed sheet and method of manufacturing thereof

Growing community of inventors

Urawa, Japan

Ken Fujiwara