Hybrid rope
AssigneesNV Bekaert SA, Dsm IP Assets B.V.
InventorsXavier Amils, Beste Durmus, Paulus Johannes Hyacinthus Marie Smeets
Life of this patent
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Abstract
Hybrid rope (20) comprising a core element (22) containing high modulus fibers surrounded by at least one outer layer (24) containing wirelike metallic members (26). The core element (22) is coated (23) with a thermoplastic polyurethane or a copolyester elastomer, preferably the copolyester elastomer containing soft blocks in the range of 10 to 70 wt %. The coated material (23) on the inner core element (22) is inhibited to be pressed out in-between the wirelike members (26) of the hybrid rope (20) and the hybrid rope (20) has decreased elongation and diameter reduction after being in use.
Claims15
A hybrid rope comprising a core element containing high modulus fibers surrounded by at least one outer layer containing wirelike metallic members, wherein the core element is coated with a polymer selected from a copolyester elastomer or a thermoplastic polyurethane.
A method to decrease elongation and diameter reduction and increase lifetime of a hybrid rope after being in use when taking as a reference a hybrid rope without coating or with other coatings such as polypropylene on the core, said method comprises the steps:
- (a) providing a core element, wherein said core element includes high modulus fibers;
- (b) coating said core element with a polymer having copolyester elastomer containing soft blocks in the range of 10 to 70 wt %;
- and
- (c) twisting a plurality of wirelike metallic members together around the core element to form a metallic outer layer.
A method to avoid pressing out a coated material on an inner core in-between the wirelike members of a hybrid rope after being in use, said method comprises the steps:
- (a) providing a core element, wherein said core element includes high modulus fibers;
- (b) coating said core element with a polymer having copolyester elastomer containing soft blocks in the range of 10 to 70 wt %;
- and
- (c) twisting a plurality of wirelike metallic members together around the core element to form a metallic outer layer.
Dependencies are inferred from the claim text.