A synthetic rope (20) comprises a core (22) and at least a first layer surrounding the core (22). The first layer has first layer strands (26). The core has a fluted outer surface with spaced apart helical concave grooves. Each of these grooves contacts one of the first layer strands (26). The grooves have a radius of curvature (24) that is greater than the radius of curvature (14) of a circle having a same diameter as the contacting first layer strand before twisting.

A belt-shaped rope of a hoisting device, the rope being substantially larger in its width-direction than thickness-direction, and comprising two or more load bearing members; a coating forming an outer surface of the rope, in which coating the two or more load bearing members are embedded, wherein the two or more load bearing members are oriented to extend parallel with longitudinal direction of the rope adjacent each other in width direction of the rope such that a gap is formed in width direction between load bearing members next to each other, the coating extending into the gap. The coating comprises a first coating portion between load bearing members next to each other, and a second coating portion forming an outer side of the rope facing in thickness direction of the rope, and in that the material of the first coating portion is substantially harder than the material of the second coating portion.

A wire rope formed from a resin core and six strands, the resin core having an inner core with a circular cross section and an outer layer built up on the periphery thereof. The outer layer has a melting temperature lower than that of the inner core. The six strands are twisted together helically on the periphery of the resin core in an intertwining die in such a state that gaps are assured between the strands. The resulting wire rope is heated in a heating unit at a temperature higher than the melting temperature of the outer layer but lower than the melting temperature of the inner core. The wire rope is formed by subsequently compressing the six strands from the periphery thereof in a compressing die. The molten outer layer is hardened by natural cooling, after which the wire rope is taken up.

A synthetic fiber rope comprising:a core, said core being a laid or braided synthetic fiber strand,a polymer layer, said polymer layer covering said core,a first layer, said first layer having at least six first synthetic fiber strands laid in a first direction surround said polymer layer, anda second layer, said second layer having at least twelve second synthetic fiber strands laid in a second direction surround said first layer.

A method for producing a rope, wherein fiber bundles are applied with a liquefied matrix material upstream of and/or at a twisting point to form fiber strands, and are embedded into the liquefied matrix material during stranding, by which fiber strands a fiber core of the rope is formed and wires or wire strands are wound about the fiber core. The matrix material of the fiber strands is hardened after the stranding, and the fiber strands are subsequently stranded directly with one another without further application to form the fiber core. Preferably the fiber strands are heated, during or after the stranding thereof to form the fiber core, so that the matrix material softens at least individual of the fiber strands, preferably all the fiber strands, softens and connects with the matrix material of another of the fiber strands, and is subsequently hardened, forming an integral bond with one another.

An object of the present invention is to further improve upon the strength and durability of a wire rope. A wire rope has a core rope made of steel; a covering layer, which is made of a composite resin, covering the outer peripheral surface of the core rope; and multiple side strands, which are made of steel, wound on the outer peripheral surface of the core rope covered with the covering layer. The composite resin constituting the covering layer is obtained by blending cellulose nanofibers with polypropylene serving as a matrix.

In an elevator rope, an inner layer rope includes a fiber core that includes a. bundle of fibers; a plurality of inner layer rope strands that each include a plurality of steel wires are disposed around an outer circumference of the fiber core; and a resin inner layer rope coating body that is coated around an outer circumference of the fiber core and a layer of the inner layer rope strands. A plurality of outer layer strands each including a plurality of steel wires are disposed around an outer circumference of the inner layer rope coating body.

A cord rubberized in situ (C) comprising: an internal layer of the cord (CT1), an external layer of the cord (CT3), a rubber composition (20) positioned between the internal layer of the cord and the external layer of the cord. The rubber composition (20) comprises a compound of formula (I): ##STR00001##
in which X and Y represent, independently of each other, an alkali metal or alkaline earth metal cation.

A high-strength fiber bundle sufficiently impregnated with a thermoplastic resin, without impairing mechanical strength. A high-strength fiber composite cable is produced by impregnating a bundle of carbon fibers with a matrix resin. The matrix resin is obtained by mixing, with a thermoplastic resin, such as polyphenylene sulfide, an oligomer having a weight-average molecular weight of less than 10,000, obtained by causing a reaction between an organic compound having a phenolic hydroxyl group and an organic compound having a glycidyl ether group. The matrix resin, which has a viscosity low in comparison with that of the thermoplastic resin serving as a base material, readily impregnates the bundle of carbon fibers with certainty.

A hybrid strand includes a core and outer wires arranged around the core, wherein at least a part of the outer wires is compressed, wherein the compressed outer wires include a flattened cross-sectional shape, the outer wires are composed of steel, and the core is a fiber core. A corresponding production method produces such a hybrid strand.