Hose

Details Hose Hose

B - Operations, Transporting

29

D

154/53.03

B29D 23/00 (2006.01)

Patent

CA 1140845

ABSTRACT IMPROVEMENTS IN OR RELATING TO HOSE A hose comprising a thermoplastic elastomer liner (1), a textile reinforcement layer (2) a thermoplastic elastomer cover (3). The liner (1) is bonded to the reinforcement layer (2) by a hot melt polyester adhesive (4) the melting point of which is below that of the liner. The hose is suitable for transporting a wide range of fluids including hydrocarbon fuels, organic liquids, solvents and drinking water. The preferred materials for the liner (1) and cover (3) are polyetherester elastomers and polyurethane elastomers respectively and the adhesive preferably has a melting point at least 20°C below that of the liner material. A method of manufacturing the hose in which the adhesive coated liner (1) is inserted through an assembly comprising the reinforcement layer (2) and cover (3) and subsequently inflated and heated to effect bonding of the liner (1) to the reinforcement layer (2) is also disclosed. Use of a preformed liner (1) and heat reactivatable adhesive (4) enables hose to be made in continuous unspliced lengths greater than 250 feet by this method. DAW/JMT - FH.5986

363103

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