▎ 摘　　要

NOVELTY - Multifunctional oxygen barrier pipe, comprises a first PB layer, an outer hot melt adhesive layer, an aluminium layer, an inner hot melt adhesive layer and a second PB layer from outside to inside in turn. The outer hot melt adhesive layer and inner hot melt adhesive layer comprises 30-40 pts. wt. polybutylene resin, 30-50 pts. wt. polybutene graft, 10-20 pts. wt. alicyclic epoxy resin, 10-40 pts. wt. polyolefin elastomer, 3-8 pts. wt. viscosity regulator, 0.1-1 pts. wt. anhydride curing agent and 0.5-1.5 pts. wt. anti-hydrolytic agent. The graft monomer of the polybutene graft comprises at least one of glycidyl methacrylate, methyl methacrylate or hydroxyethyl methacrylate. USE - The multifunctional oxygen barrier pipe is useful in cold water and/or hot water conveying and preparing floor heating pipe material (all claimed). ADVANTAGE - The barrier pipe: has excellent oxygen function performance, flame retardant property and heat conductivity; and improves the rigid strength. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a floor heating pipe, comprising multifunctional oxygen barrier pipe. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the multifunctional oxygen barrier pipe.