Fluorine resin material, laminate, tube, and tube manufacturing method

Abstract

A laminate including a fluororesin layer containing a fluororesin material, a polyamide resin layer containing a polyamide resin, and an ethylene/vinyl alcohol copolymer (EVOH) layer containing an EVOH resin in this order, where the fluororesin layer and the polyamide resin layer are directly adhered, the polyamide resin layer and the EVOH layer are directly adhered, the fluororesin material contains a fluororesin, the fluororesin has a carbonyl group, a total number of carbonyl groups being 1 or more and less than 800 per 106 main-chain carbon atoms, and the fluororesin contains ethylene unit and tetrafluoroethylene unit, and where the fluororesin material has a critical shear rate at 280° C. within a range of 50 to 500 sec−1.

Dependencies are inferred from the claim text.