Abstract: A fuel feed hose and a fuel vapor line hose having reduced fuel permeation comprises a conductive FKM inner tubular structure and a chlorinated polyethylene backing layer. The hose optionally contains an adhesive layer between the conductive FKM inner layer and the chlorinated polyethylene backing layer. Furthermore, the hose optionally contains a reinforcement member and a cover over the reinforcement member. A method of forming such tubular structures is also included.

Abstract: A tubular structure having reduced fuel permeation for use in fuel filler and fuel vent hose applications, herein the tubular structure comprises a fluoropolymer inner layer and a chloropolyethylene, chlorosulfonated polyethylene or epichlorohydrin cover layer is described. The tubular structure optionally includes a chlorinated polyethylene backing layer, one or more polyamine adhesive layers and a reinforcement layer.

Abstract: A tubular structure having reduced fuel permeation for use in fuel filler and fuel vent hose application, wherein the tubular structure comprises a nitrile or a chlorinated polyethylene inner layer, a tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride terpolymer barrier layer on the nitrile or chlorinated polyethylene inner layer, and a chlorinated polyethylene outer cover layer, and a method of forming such tubular structures are described. The tubular structure optionally includes a chlorinated polyethylene backing layer, one or more polyamide adhesive layers, and a reinforcement layer.

Abstract: A fuel filler and fuel vent hose having reduced fuel permeation, comprises an elastomeric inner layer, a fluoropolymer barrier layer formed from tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride terpolymer; tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride-perfluorovinyl ether quadpolymer; or blends of two or more tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymers or terpolymers on the elastomeric inner layer, and a chlorinated polyethylene backing layer. Optionally, the fuel filler and fuel vent hose include an adhesive layer between the fluoropolymer barrier layer, and the chlorinated polyethylene backing layer, and an optional reinforcement layer as well as an additional outer cover layer. A method of forming such tubular structures is also included.

Abstract: A fuel impermeable, fuel resistant hose having improved high temperature resistant characteristics sufficient to provide extended service life of the hose in a harsh thermal environment comprising at least one fluoropolymer tubular structure, and a backing layer surrounding the at least one fluoropolymer tubular structure wherein the backing layer comprises at least one high temperature resistant elastomer selected from the group consisting of ethylene-acrylate elastomer, ethyl-vinyl acetate copolymer, acrylic rubber, and blends thereof, said backing layer exhibiting superior high temperature resistance compared to conventional backing layers. The hose optionally contains a reinforcement member around the at least one fluoropolymer tubular structure, and a high temperature-resistant cover over the reinforcement member.

Abstract: A flexible fuel hose having improved fuel vapor barrier properties wherein the fuel hose comprises a first fluoropolymer layer forming a first barrier tubular structure and a second fluoropolymer layer forming a second tubular structure around the first barrier tubular structure; and a method for the manufacture of such hose are described.

Abstract: A fuel transport tube having improved fuel vapor permeation characteristics comprising an inner conductive nylon tubular structure containing a conductive agent selected from the group consisting of carbon fibers and carbon fibrils; an aluminum barrier layer on the outside surface of the nylon inner tubular layer; and a non-conductive nylon layer on the outer surface of the aluminum layer; and a method for making the fuel transport tube are disclosed.

Abstract: A fuel transport tube having improved fuel vapor permeation characteristics comprising an inner conductive high density polyethylene tubular structure, an aluminum barrier layer on the outside surface of the high density polyethylene inner tubular layer, and a non-conductive thermoplastic layer on the outer surface of the aluminum layer; and a method for making the fuel transport tube are disclosed.

Abstract: A flexible fuel hose having improved fuel vapor barrier properties wherein the fuel hose includes a fluoropolymer barrier layer forming an inner tubular structure, a second synthetic elastomer tubular structure around the first fluoropolymer barrier layer, and a protective cover; and a method for the manufacture of such hose are described.

Abstract: A conductive tubular connector insert for use in a fuel conveying system to couple a first conductive polymeric tubular member to a second conductive polymeric tubular member such that electrical conductivity is insured in the system as described.

Abstract: A fuel transport tube having improved fuel vapor permeation characteristics comprising an inner conductive nylon tubular structure containing a conductive agent selected from the group consisting of carbon fibers and carbon fibrils; an aluminum barrier layer on the outside surface of the nylon inner tubular layer; and a non-conductive nylon layer on the outer surface of the aluminum layer; and a method for making the fuel transport tube are disclosed.

Abstract: A conductive tubular connector insert for use in a fuel conveying system to couple a first conductive polymeric tubular member to a second conductive polymeric tubular member such that electrical conductivity is insured in the system as described.

Abstract: A flexible fuel hose having improved fuel vapor barrier properties wherein the fuel hose includes a fluoropolymer barrier layer forming an inner tubular structure, a second synthetic elastomer tubular structure around the first fluoropolymer barrier layer, and a protective cover; and a method for the manufacture of such hose are described.

Abstract: A flexible fuel hose having improved fuel vapor barrier properties wherein the fuel hose comprises a first fluoropolymer layer forming a first barrier tubular structure and a second fluoropolymer layer forming a second tubular structure around the first barrier tubular structure; and a method for the manufacture of such hose are described.

Abstract: A fuel transport tube having improved fuel vapor permeation characteristics comprising an inner conductive high density polyethylene tubular structure, an aluminum barrier layer on the outside surface of the high density polyethylene inner tubular layer, and a non-conductive thermoplastic layer on the outer surface of the aluminum layer; and a method for making the fuel transport tube are disclosed.

Abstract: A tubular structure wherein the tubular structure is constructed solely of a polybutylene terephthalate or a polybutylene naphthalate tubular structure having an inner surface and an outer surface wherein the polybutylene terephthalate or polybutylene naphthalate extends throughout the entire wall structure from the inner surface to the outer surface thereof. The polybutylene terephthalate or polynaphthalate tubular structure is useful in a variety of automotive, industrial or domestic applications where there is no need to dissipate any static electricity buildup.

Abstract: A fuel transport tube having improved fuel vapor permeation characteristics comprising an inner conductive nylon tubular structure, an aluminum barrier layer on the outside surface of the nylon inner tubular layer, and a non-conductive nylon layer on the outer surface of the aluminum layer; and a method for making the fuel transport tube are disclosed.

Abstract: A tubular structure exhibiting fuel and vapor impermeability properties for use as a fuel transport hose, wherein the hose is constructed of a polyalkylene terephthalate material or a polyalkylene naphthalate material, wherein the polyalkylene terephthalate or the polyalklyene naphthalate material extends throughout the entire wall structure.

Abstract: A fuel transport tube having improved fuel vapor permeation characteristics comprising an inner conductive nylon tubular structure, an aluminum barrier layer on the outside surface of the nylon inner tubular layer, and a non-conductive nylon layer on the outer surface of the aluminum layer; and a method for making the fuel transport tube are disclosed.

Abstract: A flexible fuel transport hose having improved fuel vapor permeation characteristics comprising an inner layer of a conductive nitrile-butadiene rubber, a thin aluminum barrier layer on the outside surface of the inner tubular layer, and an elastomeric adhesive layer on the outer surface of the aluminum layer; and a method for making the flexible fuel transport hose are disclosed.