| 摘要 |
<p>PURPOSE: A fluorocopolymer is provided to show a low fuel permeation coefficient and thus to be excellent in the fuel barrier properties and in the adhesiveness to a non-fluorinated polymer. CONSTITUTION: The fluorocopolymer comprises (A) polymerized units based on tetrafluoroethylene, (B) polymerized units based on ethylene and (C) polymerized units based on itaconic anhydride or citraconic anhydride, wherein the molar ratio of (A)/(B) is from 20/80 to 80/20, and the molar ratio of (C)/((A)+(B)) is from 1/10000 to 5/100, and a volume flow rate is from 1 to 1000 mm3/sec. A layer of the fluorocopolymer and a layer of a non-fluorinated polymer, preferably a polyamide resin, directly bonded thereto are co-extrusion molded to form a multi-layered laminate hose.</p> |
