Abstract A method of jacketing an electric cable having a corrugated metal sheath, in which the sheath is cleaned, a coating of thermosetting, castable polyurethane is applied to fill the troughs in the corrugations, a fabric is wrapped onto the coated sheath and coated with the same polyurethane, and thermoplastic polyurethane is extruded onto the cable to form a jacket. The coatings of the polyurethane serve as an adhesive for bonding the jacket to the metal sheath. A cable produced by this method comprises a layer of fabric circumscribing the corrugated metal sheath and a jacket of thermoplastic polyurethane overlying the sheath, the fabric being embedded in a layer of thermosetting, castable polyurethane bonding the jacket to the sheath.
In an electric cable having a core and a corrugated metal sheath, a layer of fabric circumscribing the sheath and embedded in thermosetting polyurethane resin, and a jacket of thermoplastic polyurethane resin circumscribing the sheath and overlaying the layer of fabric, and thermosetting polyurethane bonding the jacket to the sheath.
Claim 2
Dependent Claim
50 words
In an electric cable having a core and a corrugated metal sheath, a layer of fabric circumscribing the sheath and embedded in thermosetting polyurethane resin, and a jacket of thermoplastic polyurethane resin circumscribing the sheath and overlaying the layer of fabric, and thermosetting polyurethane bonding the jacket to the sheath.
Claim 3
Dependent Claim
14 words
An electric cable as claimed in claim 1 in which the fabric is non-woven.
Claim 4
Dependent Claim
14 words
An electric cable as claimed in claim 1 in which the fabric is polyester.