Provided is a filler pipe for fuel, the filler pipe comprising only an inner layer containing a fluorine-containing copolymer having a carbonyl group and a melting point of 250 DEG C or less, an intermediate layer containing a non-fluorine-containing copolymer having an ethylene-based unit and a vinyl alcohol-based unit, and an outer layer containing a polyolefin, the inner layer containing a fluorine-containing copolymer having a carbonyl group and a melting point of 250 DEG C or less, the intermediate layer containing a fluorine-free copolymer having an ethylene-based unit and a vinyl alcohol-based unit, and the outer layer containing a polyolefin. The inner layer, the intermediate layer, and the outer layer are directly laminated in this order, and the outer layer is a layer comprising a polyolefin having a unit based on an acid anhydride, or a layer comprising a polyolefin having a unit based on an acid anhydride, and a layer comprising a polyolefin not having a unit based on an acid anhydride, which are directly laminated.
本发明提供燃料用加注管,其仅由内层、中间层和外层构成,上述内层包含具有含羰基基团的熔点在250℃以下的含氟共聚物,上述中间层包含具有基于乙烯的单元和基于乙烯醇的单元的非含氟共聚物,上述外层包含聚烯烃,上述内层、上述中间层和上述外层依次直接层叠,上述外层是包含具有基于酸酐的单元的聚烯烃的层、或者是包含具有基于酸酐的单元的聚烯烃的层和包含不具有基于酸酐的单元的聚烯烃的层直接层叠而得的层。
Fuel filler pipe
燃料用加注管
2024-03-26
Patent
Electronic Resource
Chinese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES |