The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 2019
Filed:
Jun. 23, 2016
Bridgestone Corporation, Tokyo, JP;
Koji Suzuki, Hayama-machi, JP;
Teppei Shibata, Yokohama, JP;
Youhei Tsunenishi, Yokohama, JP;
Taichi Kobayashi, Kodaira, JP;
BRIDGESTONE CORPORATION, Chuo-ku, Tokyo, JP;
Abstract
A hose includes an inner tube rubber layer, a woven material underlayer having a woven base material made of polyamide (PA) or polyethylene terephthalate (PET), and a reinforcing material layer, which are sequentially laminated on the inner rube rubber layer in this order. Following relationship formula (1) is to be satisfied,  (1)wherein 'A' represents SOconcentration in the inner tube rubber layer (unit: mol/mm), 't' represents thickness of the inner tube rubber layer (unit: mm), “B” represents SOconcentration per 1 g of the woven base material (unit: mol/g), “C” represents mass of the woven base material per unit area of the woven material underlayer (unit: g/mm), and “D” represents a constant of 2.5×10(unit: mol/mm). 100 pbm of a rubber component contains at least 60 pbm of acrylonitrile butadiene rubber (NBR) and t≥0.5 mm.