MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202547084967 A) filed by Sumitomo Riko Company Limited on September 08, 2025, for Fuel Hose.
Inventors include Nakashima, Takaki; and Hirai, Ryo.
The application for the patent was published on September 18, 2026, under issue no. 38/2026.
Abstract: Provided is a fuel hose that exhibits excellent adhesion between an inner layer of polyol-crosslinked fluororubber and an outer layer of acrylonitrile-butadiene rubber even when stored in an uncrosslinked state after extrusion. The fuel hose comprises a tubular inner layer 12 and an outer layer 14 provided in contact with the inner layer 12, the inner layer 12 is constituted of a crosslinked product of a rubber composition containing (A) to (E) below, the outer layer 14 is constituted of a crosslinked product of a rubber composition containing (F) to (I) below, the total amount of (H) and (I) is 20 to 70 parts by mass, inclusive, per 100 parts by mass of (F), and the (H) content is 30 to 95% by mass, inclusive, per the total amount of (H) and (I). (A) Polyol cross-linked fluororubber, (B) polyol cross-linking agent, (C) calcium hydroxide, (D) triallyl isocyanurate, (E) peroxide cross-linking agent, (F) acrylonitrile-butadiene rubber, (G) paraffin wax, (H) carbon black with an oil absorption of less than 50 mL/100 g, (I) carbon black with an oil absorption of 50 mL/100 g or more
Disclaimer: Curated by HT Syndication.
