Patent ID: 6974614
Filing Date: 2005-12-13
Classification: B32B,Y10T

Abstract:
1. A fuel transport tube having improved fuel vapor permeation, said tube consisting of: an inner conductive high density polyethylene tubular structure having an inner surface and an outer surface; an aluminum barrier layer having an inner surface and an outer surface disposed on the outer surface of said inner high density polyethylene tubular structure; an outer non-conductive polymeric tubular structure having an inner surface and an outer surface disposed on the outer surface of said aluminum layer, wherein said outer non-conductive polymeric tubular structure is a thermoplastic or rubber material selected from the group consisting of chlorinated polyethylene; chlorosulfonated polyethylene; styrene-butadiene rubber; butadiene-nitrile rubber; nitrile-polyvinyl chloride; EPDM, neoprene; vinylethylene-acrylic rubber, acrylic rubber; epichlorohydrin rubber; copolymers of epichlorohydrin and ethylene oxide; polychloroprene rubber; polyvinyl chloride; ethylene-propylene copolymers; ultra high molecular weight polyethylene; high density polyethylene; chlorobutyl rubber; and blends thereof; and a tie layer between at least one layer of: (1) the outer surface of said conductive inner high density polyethylene tubular structure and the inner surface of said aluminum barrier layer, and (2) the outer surface of said aluminum barrier layer and the inner surface of said non-conductive polymeric tubular structure.