Process for producing hoses

Details Process for producing hoses Process for producing hoses

1987-08-11

1989-02-07

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156172, 156173, 156187, 15624413, 138126, 138141, B29C 3502, B29C 4704

Patent

active

048029386

ABSTRACT:
A process for producing hoses of laminated construction having a plastic inner tube is disclosed which comprises:- (a) extruding a thermoplastic resin on a mandrel to form an inner tube with a predetermined thickness, the mandrel being preformed of a thermoplastic resin or rubber and releasable from the inner tube, (b) laminating an outer tube integrally on the inner tube by extrusion of an unvulcanized rubber to form an integral hose body, (c) vulcanizing the hose body, (d) removing the mandrel from the vulcanized hose body. This hose is characterized by high resistance to load of impulse.

REFERENCES:
patent: 2525272 (1950-10-01), Rhoton
patent: 3024813 (1962-03-01), Sear et al.
patent: 3414448 (1968-12-01), Harpfer
patent: 3599677 (1971-08-01), O'Brien
patent: 3828112 (1974-08-01), Johansen et al.
patent: 3883384 (1975-05-01), Hopkins

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