composite pull-aparts

Abstract

The invention relates to a composite elongate body (3) comprising high performance polyethylene HPPE filaments (2) having a tenacity of at least 0.6 N / tex and a polymer composition (10) throughout the composite elongate body, wherein the polymer composition comprises a thermoplastic ethylene copolymer and a lubricant; and wherein the thermoplastic ethylene copolymer is a copolymer of ethylene and wherein the peak melting temperature of the polymer composition is in the range of 40 to 140 °C, the melting temperature being measured according to ASTM E794-06. The invention further relates to an elongate body, an article and a crane comprising the composite elongate body; to a method of manufacturing a composite elongate body; and to the use of a polymer composition.

Description

[0001] This invention relates to a composite elongated body. The invention further relates to an elongated body comprising the composite elongated body according to the invention. The invention also relates to a method of manufacturing the composite elongated body and a method of manufacturing the elongated body. The invention further relates to an article comprising the composite elongated body and / or an elongated body according to the invention, and a method of manufacturing such an article. Cranes comprising pulleys and ropes are also part of the invention, the ropes comprising the composite elongated body. The invention further relates to a method of lifting and / or placing objects, and designs for the use of polymer compositions.

[0002] In many applications, ropes and belts are repeatedly subjected to friction and deformation upon contact with opposing surfaces. During use, ropes are frequently pulled past guides, tie rods, drums, flanges, pulleys, and sheaves, resulting in wear and bending. When exposed to such frequent wear and bending, ropes may fail due to damage to the rope, strands, and / or filaments; fatigue failure is commonly referred to as abrasive wear or bending fatigue.

[0003] HPPE (High Performance Polyethylene) fiber ropes with improved flexural fatigue have been described, for example, in WO2007 / 062803 and WO2011 / 015485. WO2007 / 062803 describes a rope constructed from high performance polyethylene fibers and polytetrafluoroethylene fibers. These ropes may contain 3-18% by mass of a liquid polysiloxane. WO2011 / 015485 describes a rope comprising HPPE fibers coated with crosslinked silicone rubber. Therefore, in the prior art, the use of silicone compositions, alone or in combination with low-friction fibers (e.g., PTFE), has been suggested to reduce the frictional behavior of HPPE fibers during bending applications. In particular, WO2011 / 015485 describes a technique already established in the field of high-end bending applications.

[0004] WO 2017 / 060461 relates to a method for producing an elongated body comprising high-performance polyethylene fibers and polymer resin and such composite elongated body.

[0005] It is worth noting that US2007 / 202329 relates to improvements in ropes, and in particular to high-strength synthetic ropes suitable for marine applications.

[0006] It is worth noting that GB 1 405 551 relates to a size composition, and more specifically to a size composition for application to glass fibers to improve the processing and performance characteristics of glass fibers in glass fiber textiles, as well as for the manufacture of glass fiber reinforced elastomer products and glass fiber reinforced plastics.

[0007] The present invention aims to provide an improved elongated body, such as an improved synthetic rope. Specifically, it is an improved rope comprising HPPE filaments, such as a rope constructed from HPPE filaments. The elongated body according to the invention, such as the rope according to the invention, includes a composite elongated body according to the invention.

[0008] This invention provides a composite elongated body comprising a high-performance polyethylene (HPPE) filament with a toughness of at least 0.6 N / tex and a polymer composition extending throughout the composite elongated body, wherein the polymer composition comprises:

[0009] a) Thermoplastic ethylene copolymers as described herein, and

[0010] b) Lubricants as described herein;

[0011] Furthermore, the thermoplastic ethylene copolymer is a copolymer of ethylene, and the peak melt temperature of the polymer composition, measured according to ASTM E794-06, is in the range of 40°C to 140°C. Ropes containing the composite elongated body according to the invention exhibit improved abrasion properties. In one aspect, this is demonstrated by improved abrasion resistance against static reverse surfaces (e.g., cable guides).

[0012] This improved abrasion resistance against the static reverse side can also be referred to as improved external abrasion. External refers to the outer surface of the rope, i.e., the portion visible to the naked eye, or the portion in contact with the hand when the rope is held or touched. This paper demonstrates this improvement for the rope itself, without the need for a covering around the outer surface of the rope. The inventors have found that the abrasion resistance is combined with other improved mechanical properties. These improvements can be seen, for example, in improved repeated bending performance or coefficient of friction. In particular, there is improved cyclic bending over sheave (CBOS) performance.

[0013] The composite elongated body of the present invention is a composite material. A composite material is a material made of two or more constituent materials having significantly different physical and / or chemical properties, which, when combined, produce a material with properties different from the individual components. The individual components remain separate and unique in the finished structure.

[0014] In its simplest form, the composite elongated body comprises two or more filaments placed side by side and not twisted around each other. The filaments are oriented substantially in a single direction, namely the length direction of the composite elongated body.

[0015] In this document, fiber is understood as an elongated shape whose length dimension is much greater than its width and thickness transverse dimensions. The term fiber in this document includes filaments, which may have regular or irregular cross-sections.

[0016] A filament is an elongated shape in which the length dimension is much greater than the lateral dimensions of width and thickness. Fibers can have a continuous length, referred to in the art as filaments or continuous filaments, or a discontinuous length, referred to in the art as short fibers.

[0017] The yarn used for the purposes of this invention is an elongated form comprising at least two filaments. In one aspect, the yarn comprises at least 20 filaments, preferably at least 100 filaments, more preferably at least 400 filaments. The yarn typically comprises up to 10,000 filaments. In one aspect, the yarn comprises up to 5,000 filaments. The filaments in the yarn can be twisted or untwisted, preferably untwisted. During coating, it is advantageous to leave the filaments in the yarn untwisted to improve coating penetration / wetting on the surface of the filaments.

[0018] The term "slender" in this document should be understood as having a length dimension significantly greater than its width and thickness. Preferably, the length dimension is at least 10 times the width or thickness (whichever is greater), more preferably at least 20 times, even more preferably at least 50 times, and most preferably at least 100 times greater. In one aspect, the length dimension is 20 times to 1 × 10⁻⁶ times the width or thickness (whichever is greater). 10 Double the size.

[0019] In this document, "elongated shape" is understood to mean a slender shape, wherein the length dimension of the slender shape is much greater than the lateral dimensions of its width and thickness or diameter. Preferably, the length dimension is at least 10 times the width or thickness (whichever is greater), more preferably at least 20 times, even more preferably at least 50 times, and most preferably at least 100 times greater. In one aspect, the length dimension of the slender shape is 20 times to 1 × 10⁻⁶ times the width or thickness (whichever is greater). 10 Double the size.

[0020] The present invention further provides a composite elongated body comprising a high-performance polyethylene (HPPE) filament with a toughness of at least 0.6 N / tex and a polymer composition throughout the composite elongated body, wherein the polymer composition comprises:

[0021] a) Thermoplastic ethylene copolymers, and

[0022] b) Lubricant;

[0023] Furthermore, the thermoplastic ethylene copolymer is a copolymer of ethylene, and the peak melting temperature of the polymer composition is in the range of 40°C to 140°C, as measured according to ASTM E794-06.

[0024] In one aspect of the invention, the length dimension of the composite elongated body is at least 100 times larger than the width or thickness dimension of the composite elongated body, preferably at least 500 times, whichever is greater. In another aspect, the length dimension of the composite elongated body is 20 to 1 × 10⁻⁶ larger than the width or thickness dimension. 10 times.

[0025] In another aspect, the ratio of the thermoplastic ethylene copolymer to the lubricant, based on its solids content, is from 1:1 to 1:10, preferably from 1:1 to 1:5, more preferably from 1:1.5 to 1:4, and most preferably from 1:2 to 1:1.35. In one aspect, the ratio of the thermoplastic ethylene copolymer to the lubricant, based on its solids content, is 1:1, 1:1.1, 1:1.2, 1:1.3, 1:1.4, 1:1.5, 1:1.6, 1:1.7, 1:1.8, 1:1.9, 1:2, 1:2.1, 1:2.2, 1:2.3, 1:2.4, 1:2.5, 1:2.6, 1:2.7, 1:2.8. 1:2.9, 1:3.0, 1:3.1, 1:3.2, 1:3.3, 1:3.4, 1:3.5, 1:3.6, 1:3.7, 1:3.8, 1:3.9, 1:4.0, 1:4.1, 1:4.2, 1:4.3, 1:4.4, 1:4.5, 1:4.6, 1:4.7, 1:4.8, 1:4.9, 1:5, 1:5.1, 1:5. 2, 1:5.3, 1:5.4:1:5.5, 1:5.6, 1:5.7, 1:5.8, 1:5.9, 1:6, 1:6.1, 1:6.2, 1:6.3, 1:6.4:1:6.5, 1:6.6, 1:6.7, 1:6.8, 1:6.9, 1:7, 1:7.1, 1:7.2, 1:7.3, 1:7.4:1:7.5, 1:7. 6, 1:7.7, 1:7.8, 1:7.9, 1:8, 1:8.1, 1:8.2, 1:8.3, 1:8.4:1:8.5, 1:8.6, 1:8.7, 1:8.8, 1:8.9, 1:9, 1:9.1, 1:9.2, 1:9.3, 1:9.4:1:9.5, 1:9.6, 1:9.7, 1:9.8, 1:9.9 or 1:10.

[0026] In one aspect of the invention, the lubricant comprises one or more of the following substances, including derivatives of these lubricants: synthetic waxes such as PE wax and PP wax, animal waxes such as beeswax, plant waxes such as carnauba wax; synthetic greases or synthetic oils; mineral greases and mineral oils; inorganic solids such as graphite or molybdenum disulfide; ceramics such as ceramic lubricants or ceramic coatings; PUR; acrylates; mixtures of PURs and acrylates; or any combination thereof.

[0027] In embodiments of the composite elongated body according to the invention, the lubricant comprises wax.

[0028] In one aspect of the composite elongated body according to the invention, the lubricant is wax.

[0029] Waxes are organic compounds characterized by long aliphatic alkyl chains, although aromatic compounds may also be present. Typical aliphatic alkyl chains are C20 to C40 alkyl chains. Natural waxes may contain unsaturated bonds and include various functional groups such as fatty acids, primary and secondary alcohols, ketones, aldehydes, and fatty acid esters. Synthetic waxes are typically composed of long-chain aliphatic hydrocarbons (alkanes or paraffins) from a homologous series lacking functional groups.

[0030] Suitable waxes include both synthetic and natural waxes. Suitable waxes include, but are not limited to: animal waxes, such as beeswax, Chinese wax, whale wax, and lanolin wax; plant waxes, such as wood wax, waxberry wax, candelilla wax, palm wax, castor wax, grass wax, Japanese wax, jojoba oil wax, rice bran wax, and soybean wax; mineral waxes, such as ceresin wax, montanwax, ozocerite wax, and peat wax; petroleum waxes, such as paraffin wax and microcrystalline wax; and synthetic waxes, such as Fischer-Tropsch wax, polyolefin waxes, including polyethylene homopolymer wax, oxidized polyethylene wax, polypropylene wax, stearamide wax, substituted amide wax, ethylene-acrylic acid copolymer wax, ethylene-vinyl acetate copolymer wax, ethylene oxide-vinyl acetate copolymer wax, ethylene-maleic anhydride graft copolymer wax, propylene-maleic anhydride graft copolymer wax, and chemically modified waxes.

[0031] Suitable waxes may include those with a melting point of 39°C to 45.0°C. This melting point range can improve lubrication properties and enhance performance during use. Preferably, the wax is polyethylene wax, polypropylene wax, beeswax, carnauba wax, or Fischer-Tropsch wax. Carnauba wax is the most preferred.

[0032] Carnauba wax typically has a melting point of 82-86°C (180-187°F). This melting point range can be beneficial in applications where temperatures may rise during use. Carnauba wax (INCI name: Copernicia cerifera wax) is primarily composed of fatty acid esters (40 wt%), 4-hydroxycinnamic acid diester (21 wt%), ω-hydroxycarboxylic acid (13.0 wt%), and fatty alcohols (12 wt%). These compounds are mainly derived from acids and alcohols in the C26-C30 range. It is characterized by its high content of diesters and methoxycinnamic acid. It is one of the hardest natural waxes, almost insoluble in water or ethanol, but soluble in ethyl acetate or xylene. Solid carnauba wax is a hard wax scraped from the leaves and leaf clusters of the carnauba palm (Copernicia cerifera). Carnauba wax includes C18-C32 fatty acid esters and C28-C34 alcohols, and also contains a significant amount of hydroxy acid esters, with melting points of approximately 80°C and 86°C. In addition, solid palm wax typically comprises about 80% to about 85% by weight of fatty esters, about 1% to about 5% by weight of alcohols, about 1% to about 5% by weight of hydrocarbons, about 1% to about 5% by weight of free acids, about 1% to about 6% by weight of resins, about 1% to about 5% by weight of lactic acid components, and about 2% by weight of water. Palm wax is primarily produced by mechanically recycling the coating from the leaves of various palm trees, almost all of which grow in northeastern Brazil. The composition of this wax, as reported by Vandenburg et al., “The Structural Constituents of Carnauba Wax,” J. Am. Oil Chem. Soc. 47: 514-518 (1970), is as follows: hydrocarbons (0.3-1%), fatty esters (38-40%), monohydric alcohols (10-12%), ω-hydroxy fatty esters (12-14%), p-methoxycinnamic acid fatty acid diesters (5-7%), p-hydroxycinnamic acid fatty acid diesters (20-23%), triterpenoid diols (0.4%), and free fatty acids and other unknown components (5-7%). The carbon number of esters is between 44 and 66 (Basson et al., “An Investigation of the Structures and Molecular Dynamics of Natural Waxes: II Carnauba Wax,” J. Phys. D: Appl. Phys. 21: 1429 (1988)), and the carbon number of alkanes is between 16 and 34 (Vandenburg et al., “The Structural Constituents of Carnauba Wax,” J. Am. Oil Chem. Soc. 47: 514-518 (1970)).The presence of long-chain esters is believed to contribute to the high melting point and hardness of palm wax.

[0033] Thermoplastic ethylene copolymers and lubricants (e.g., lubricants) can be separated by preparative fractionation. Typically, this separation can be based on molar mass (e.g., using size exclusion chromatography) or crystallinity (e.g., using temperature elution fractionation). The resulting fractions can then be analyzed using techniques such as IR and / or NMR.

[0034] The type of lubricant can be determined by, for example, using GC-MS and comparing retention time and molar mass, and by comparing the fingerprint with a database.

[0035] Technicians will be able to select appropriate sample preparation techniques and methods depending on the sample to be tested. A technician will know that, if he / she is dealing with a finished product, he / she needs to obtain the polymer composition before performing density measurements. Part of a technician's skill is to determine how to obtain and prepare a sample of the polymer composition based on the appearance of the finished product, and then select the appropriate method for measuring density based on the appearance of said sample. For example, the polymer composition can be scraped from a composite elongated body and analyzed. For example, the polymer composition can be scraped from an elongated body according to the invention and analyzed.

[0036] An example of commercial carnauba wax is Aquacer 2650, purchased from BYK Netherlands BV. An example of Fischer-Tropsch wax is Aquacer 2700,av, also purchased from BYK Netherlands BV.

[0037] In one aspect, the lubricant is a polymer dispersion. Typically, the polymer dispersion is a dispersion of polyurethane or acrylic acid, or a dispersion of a mixture of polyurethane and acrylic acid. An example of a polyurethane dispersion is NeoRez R-2180, available from DSM Coating Resins BV. An example of an acrylic dispersion is NeoCryl A-668, available from DSM Coating Resins BV.

[0038] In one aspect, the present invention provides a composite elongated body comprising a high-performance polyethylene (HPPE) filament having a strength of at least 0.6 N / tex and a polymer composition extending through the composite elongated body, wherein the polymer composition comprises:

[0039] a) thermoplastic ethylene copolymers; and

[0040] b) Wax, wherein the wax is selected from polyethylene wax, polypropylene wax, beeswax, carnauba wax, Fischer-Tropsch wax and any combination thereof;

[0041] The thermoplastic ethylene copolymer is a copolymer of ethylene, and the polymer composition has a peak melting temperature in the range of 40°C to 140°C, as measured according to ASTM E794-06.

[0042] In another aspect, the ratio of the thermoplastic ethylene copolymer to the wax, based on the solids content, is 11:1 to 1:10, preferably 1:1 to 1:5, more preferably 1:1.5 to 1:4, and most preferably 1:2 to 1:1.35.

[0043] In another aspect, the ratio of the thermoplastic ethylene copolymer to the wax, based on the solids content, is 10:1 to 1:10, preferably 5:1 to 1:5, more preferably 4:1 to 1:4, and most preferably 3:1 to 1:3.

[0044] In another aspect, the ratio of the thermoplastic ethylene copolymer to the wax, based on the solids content, is 1:1 to 1:10, preferably 1:1 to 1:5, more preferably 1:1.5 to 1:4, and most preferably 1:2 to 1:1.35.

[0045] In one aspect, the ratio of thermoplastic ethylene copolymer to wax based on solids content is 1:1, 1:1.1, 1:1.2, 1:1.3, 1:1.4, 1:1.5, 1:1.6, 1:1.7, 1:1.8, 1:1.9, 1:2, 1:2.1, 1:2.2, 1:2.3, 1:2.4, 1:2.5, 1:2.6, 1:2.7, 1:2.8, 1: 2.9, 1:3.0, 1:3.1, 1:3.2, 1:3.3, 1:3.4, 1:3.5, 1:3.6, 1:3.7, 1:3.8, 1:3.9, 1:4.0, 1:4.1, 1:4.2, 1:4.3, 1:4.4, 1:4.5, 1:4.6, 1:4.7, 1:4.8, 1:4.9, 1:5, 1:5.1, 1:5.2 1:5.3, 1:5.4:1:5.5, 1:5.6, 1:5.7, 1:5.8, 1:5.9, 1:6, 1:6.1, 1:6.2, 1:6.3, 1:6.4:1:6.5, 1:6.6, 1:6.7, 1:6.8, 1:6.9, 1:7, 1:7.1, 1:7.2, 1:7.3, 1:7.4:1:7.5, 1:7.6 1:7.7, 1:7.8, 1:7.9, 1:8, 1:8.1, 1:8.2, 1:8.3, 1:8.4:1:8.5, 1:8.6, 1:8.7, 1:8.8, 1:8.9, 1:9, 1:9.1, 1:9.2, 1:9.3, 1:9.4:1:9.5, 1:9.6, 1:9.7, 1:9.8, 1:9.9 or 1:10.

[0046] In one aspect of the composite elongated body according to the invention, the wax comprises: synthetic wax, such as PE wax or PP wax; animal wax, such as beeswax; plant wax, such as palm wax; or any combination thereof. The thermoplastic ethylene copolymer described herein is a semi-crystalline polymer, and considering a second heating profile at a heating rate of 10 K / min on a dry sample, the peak melting temperature of the semi-crystalline polymer is in the range of 40°C to 140°C, measured according to ASTM E794-06. In one embodiment, the peak melting temperature of the thermoplastic ethylene copolymer is at least 50°C or 60°C and at most 130°C or 120°C. In one embodiment, the peak melting temperature of the thermoplastic ethylene copolymer is at least 50°C and at most 130°C. In one embodiment, the peak melting temperature of the thermoplastic ethylene copolymer is at least 60°C and at most 130°C. In one embodiment, the peak melting temperature of the thermoplastic ethylene copolymer is at least 60°C and at most 120°C. In one embodiment, the peak melting temperature of the thermoplastic ethylene copolymer is in the range of 50°C to 120°C. In one embodiment, the peak melt temperature of the thermoplastic ethylene copolymer is in the range of 50°C to 120°C. This peak melt temperature allows for the preparation of composite elongations by melting the polymer composition and impregnating filaments without negatively impacting the mechanical properties of the high-performance polyethylene filaments. The thermoplastic ethylene copolymer may have more than one peak melt temperature. In this case, at least the highest melt peak of the stated melt temperature falls within the aforementioned range. A second and / or additional peak melt temperature of the copolymer may fall within or outside the stated temperature range, preferably below it. For example, if the thermoplastic ethylene copolymer is a blend of different polymers, multiple melt peaks may be observed.

[0047] In one aspect of the invention, the thermoplastic ethylene polymer includes an ethylene-propylene copolymer.

[0048] Thermoplastic ethylene copolymers may include various forms of ethylene-propylene copolymers, other ethylene copolymers with comonomers (e.g., 1-butene, isobutene), and monomers containing heteroatoms (e.g., acrylic acid, methacrylic acid, vinyl acetate, maleic anhydride, ethyl acrylate, methyl acrylate); typically α-olefin and cycloolefin copolymers, or blends thereof. Preferably, the thermoplastic ethylene copolymer is a copolymer of ethylene, which may contain one or more olefins having 2-12 carbon atoms, particularly propylene, isobutene, 1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene, acrylic acid, methacrylic acid, and vinyl acetate as comonomers.

[0049] Furthermore, the thermoplastic ethylene copolymer can be a functionalized polyethylene, or alternatively, the thermoplastic ethylene copolymer may contain a functionalized polymer. Such functionalized polymers are often referred to as functionalized copolymers or grafted polymers, where grafting refers to the chemical modification of the polymer backbone primarily with an olefinically unsaturated monomer containing heteroatoms, and a functionalized copolymer refers to the copolymerization of ethylene with an olefinically unsaturated monomer. Preferably, the olefinically unsaturated monomer contains oxygen and / or nitrogen atoms. Most preferably, the olefinically unsaturated monomer contains a carboxylic acid group or a derivative thereof, thereby producing an acylated polymer, particularly acetylated polyethylene. Preferably, the carboxylic acid reactant is selected from the group consisting of acrylic acid, methacrylic acid, cinnamic acid, crotonic acid, and maleic acid, fumaric acid, and itaconic acid reactants. The functionalized polymer typically contains between 1% and 10% by mass or more of the carboxylic acid reactant. The presence of this functionalization in the thermoplastic ethylene copolymer can significantly enhance the dispersibility of the thermoplastic ethylene copolymer and / or allow for a reduction in additives, such as surfactants, present for this purpose. This composition may also be referred to as solvent-free. Solvents in this document should be understood as liquids in which thermoplastic ethylene copolymers are soluble in an amount greater than 1% by mass at room temperature, while non-solvents should be understood as liquids in which thermoplastic ethylene copolymers are soluble in an amount less than 0.1% by mass at room temperature.

[0050] The density of the thermoplastic ethylene copolymer, as measured according to ISO 1183-04, is 860 kg / m³. 3 Up to 970kg / m 3 Preferably 870kg / m 3 Up to 930kg / m 3 More preferably 870kg / m 3 Up to 920kg / m 3 The optimal value is 875 kg / m³. 3 Up to 910 kg / m 3 Within a certain range. In one aspect, the density of the thermoplastic ethylene copolymer, as measured according to ISO 1183-04, is 875 kg / m³. 3 Up to 900kg / m 3 Within the preferred range. The inventors have discovered that thermoplastic ethylene copolymers with densities within the preferred range provide an improved balance between the mechanical properties of the composite elongated body and the processability of the coating composition, particularly the coating composition dried during the method of the present invention.

[0051] Thermoplastic ethylene copolymers are semi-crystalline polymers, as measured by ASTM E794-06 and ASTM E793-85, respectively, according to second heating profiles taking into account a heating rate of 10 K / min on dry samples. The peak melting temperature of said semi-crystalline polymer is in the range of 40°C to 140°C, and its heat of fusion is typically at least 5 J / g. Thermoplastic ethylene copolymers are semi-crystalline polyolefins, as measured by ASTM E794-06 and ASTM E793-85, respectively, according to second heating profiles taking into account a heating rate of 10 K / min on dry samples. The peak melting temperature of said semi-crystalline polyolefin is in the range of 40°C to 140°C, and its heat of fusion is typically at least 5 J / g. In one embodiment of the invention, the heat of fusion of the thermoplastic ethylene copolymer is at least 10 J / g, preferably at least 15 J / g, more preferably at least 20 J / g, even more preferably at least 30 J / g, and most preferably at least 50 J / g. The inventors have surprisingly discovered that, with increasing heat of fusion, the composite elongated body exhibits improved monofilamentary properties. Apart from the theoretical maximum heat of fusion of approximately 300 J / g for fully crystalline polyethylene or polypropylene, the heat of fusion of thermoplastic ethylene copolymers is not particularly limited by an upper limit. Thermoplastic ethylene copolymers are semi-crystalline products with peak melting temperatures within a specified range. Therefore, a reasonable upper limit for the heat of fusion of thermoplastic ethylene copolymers is at most 200 J / g, preferably at most 150 J / g. In another embodiment, considering a second heating profile at a heating rate of 10 K / min on a dry sample, the peak melting temperature of the thermoplastic ethylene copolymer is in the range of 50°C to 130°C, preferably in the range of 60°C to 120°C, as measured according to ASTM E794-06. This preferred peak melting temperature provides a more robust processing method for producing composite elongated bodies, as the drying conditions of the composite elongated bodies with good properties do not require much attention when producing them. Thermoplastic ethylene copolymers may have more than one peak melting temperature. In this case, at least the highest melting peak of the stated melting temperature falls within the aforementioned range. The second and / or additional peak melting temperatures of the thermoplastic ethylene copolymer may fall within or outside the stated temperature range. This may be the case, for example, when the thermoplastic ethylene copolymer is a blend of polymers.

[0052] Thermoplastic ethylene copolymers can have moduli that vary over a wide range. Low-modulus thermoplastic ethylene copolymers, for example, with a modulus of about 50 MPa, will provide highly flexible composite elongations with good strength properties. High-modulus thermoplastic ethylene copolymers, for example, with a modulus of about 500 MPa, can provide composite elongations, such as monofilaments, with improved structural appearance. Each application may have an optimal modulus for the thermoplastic ethylene copolymer, which is related to the specific requirements during the use of the application. The modulus can be determined as described in the methods herein.

[0053] The amount of polymer composition (coating percentage) present in the composite elongated body can vary widely depending on the intended application of the composite elongated body and can be adjusted by the application method employed. The amount of polymer composition in the composite elongated body according to the invention can be determined as described in the Methods section herein. In one aspect of the invention, the composite elongated body comprises a polymer composition ranging from 5% to 45% by mass, based on the total weight of the composite elongated body. In another aspect of the invention, the composite elongated body comprises a polymer composition ranging from 8% to 25% by mass, preferably 12% to 20% by mass, based on the total weight of the composite elongated body.

[0054] In the composite elongated body, the surface of the HPPE filament is substantially (at least 50%, at least 60%, at least 70%, at least 90%, at least 95%, or at least 98%) coated (i.e. covered) with the polymer composition. In one aspect of the composite elongated body, 70% to 100% of the surface of the HPPE filament is coated (i.e. covered) with the polymer composition. Alternatively, it can be stated that the polymer composition in the composite elongated body is present as a sizing agent on substantially the entire surface of the HPPE filament.

[0055] In one aspect, the composite elongated body according to the invention comprises:

[0056] a) 55-95% by mass of high-performance polyethylene filament;

[0057] b) 5-45% by mass of thermoplastic ethylene copolymers with a peak melt temperature of 40-140°C, as measured according to ASTM E794-06;

[0058] c) 5-45% by mass of lubricant; and

[0059] d) 0-5.0% by weight of additives;

[0060] The sum of components a) to d) is 100% by mass.

[0061] In one aspect, the composite elongated body according to the invention comprises:

[0062] a) 70-85% by mass of high-performance polyethylene filament;

[0063] b) 7.5-30% by mass of thermoplastic ethylene copolymers with a peak melt temperature of 40-140°C, as measured according to ASTM E794-06;

[0064] a) 7.5-25% by mass of lubricant; and

[0065] b) 0-5.0% by weight of other additives;

[0066] The sum of components a) to d) is 100% by mass.

[0067] In one aspect, the polymer composition forms a uniform film on the surface of the HPPE filament. This can be observed via visual analysis, for example by using SEM on a cross-section of the composite elongation while simultaneously using an SEM measurement window of at least 3 times the filament diameter and determining what percentage of the surface is covered by the coating composition. Alternatively, the percentage of the surface covered by the coating composition can be determined by performing SEM at 10 locations (uniformly distributed across the cross-section).

[0068] In one aspect, the polymer composition forms a uniform film on the surface of the HPPE filament. This can be further observed via visual analysis, for example by using SEM on the outer surface of the composite elongation (such as...). Figure 11 (As shown).

[0069] The density of the polymer composition, as measured according to ISO 1183-04, is 860 kg / m³. 3 Up to 970kg / m 3 Preferably 870kg / m 3 Up to 930kg / m 3 More preferably 870kg / m 3 Up to 920kg / m 3 The optimal value is 875 kg / m³. 3 Up to 910 kg / m 3 Within the range. In one embodiment, the density of the polymer composition is 875 kg / m³, as measured according to ISO 1183-04. 3 Up to 900kg / m 3 Within the range of densities. The inventors have discovered that polymer compositions with densities within the range of densities provide a good balance between the mechanical properties of the composite elongated body and the processability of the coating composition comprising the thermoplastic ethylene copolymer and the lubricant during the manufacture of the composite elongated body of the present invention.

[0070] In embodiments of the composite elongated body according to the invention, the lubricant is as described herein.

[0071] In the context of this invention, HPPE filament should be understood as a polyethylene filament with improved mechanical properties (e.g., toughness). In a preferred embodiment, the high-performance polyethylene filament is a polyethylene filament with a toughness of at least 0.6 N / tex, preferably at least 1.0 N / tex, more preferably at least 1.5 N / tex, more preferably at least 1.8 N / tex, even more preferably at least 2.5 N / tex, and most preferably at least 3.5 N / tex. In a preferred embodiment, the high-performance polyethylene filament is a polyethylene filament with a toughness of at most 6.0 N / tex, preferably at most 5.5 N / tex, and more preferably at most 5.0 N / tex. Preferred polyethylene is high molecular weight polyethylene (HMWPE) or ultra-high molecular weight polyethylene (UHMWPE). Optimal results are obtained when the high-performance polyethylene filament comprises ultra-high molecular weight polyethylene (UHMWPE) and has a toughness of at least 2.0 N / tex, more preferably at least 3.0 N / tex. In one aspect, the high-performance polyethylene filament is an ultra-high molecular weight polyethylene (UHMWPE) filament with a toughness ranging from 2.0 N / tex to 6.0 N / tex. In another aspect, the high-performance polyethylene filament is an ultra-high molecular weight polyethylene (UHMWPE) filament with a toughness ranging from 2.5 N / tex to 5.0 N / tex.

[0072] Preferably, the composite elongated body of the present invention comprises HPPE filaments, the HPPE filaments comprising high molecular weight polyethylene (HMWPE) or ultra-high molecular weight polyethylene (UHMWPE) or a combination thereof, preferably the HPPE filaments are substantially composed of HMWPE and / or UHMWPE.

[0073] In the context of this invention, the expression “consisting substantially of HMWPE and / or UHMWPE” means “may contain small amounts of additional substances”, wherein a small amount is at most 5% by mass, preferably at most 2% by mass of the additional substances, or in other words, “contains more than 95% by mass”, preferably “contains more than 98% by mass” of filament-based HMWPE and / or UHMWPE.

[0074] In one aspect, the composite elongated body of the present invention comprises high molecular weight polyethylene (HMWPE) filaments with a toughness of at least 0.6 N / tex, preferably at least 1.0 N / tex, more preferably at least 1.5 N / tex, more preferably at least 1.8 N / tex, even more preferably at least 2.5 N / tex, and most preferably at least 3.5 N / tex. Optimal results are obtained when the high-performance polyethylene filament comprises ultra-high molecular weight polyethylene (UHMWPE) and has a toughness of at least 2.0 N / tex, more preferably at least 3.0 N / tex. In one aspect, the composite elongated body of the present invention comprises high molecular weight polyethylene (HMWPE) filaments with a toughness in the range of 2.0 N / tex to 5.5 N / tex. In one aspect, the composite elongated body of the present invention comprises high molecular weight polyethylene (HMWPE) filaments with a toughness in the range of 2.0 N / tex to 5.0 N / tex.

[0075] In one embodiment, the composite elongated body according to the invention comprises at least two filaments. In one embodiment, the composite elongated body according to the invention comprises at least 20 filaments, preferably at least 100 filaments, more preferably at least 200 filaments. In one embodiment, the composite elongated body according to the invention comprises up to 1500 filaments, preferably up to 1200 filaments, more preferably up to 5000 filaments.

[0076] In one aspect, the composite elongated body according to the invention comprises 2 to 1×10 9 (UHMWPE) filaments with root toughness in the range of 2.0 N / tex to 5.0 N / tex.

[0077] In one aspect, the composite elongated body according to the invention comprises 2 to 1×10 7 (UHMWPE) filaments with root toughness in the range of 2.0 N / tex to 5.0 N / tex.

[0078] In the context of this invention, the polyethylene (PE) filaments can be linear or branched, with linear polyethylene being preferred. Linear polyethylene is understood herein to mean polyethylene having less than one side chain per 100 carbon atoms, and preferably less than one side chain per 300 carbon atoms; the side chains or branches typically contain at least 10 carbon atoms. The number of side chains can be suitably measured by FTIR.

[0079] The filament PE preferably has a high molecular weight and an intrinsic viscosity (IV) of at least 2 dl / g, more preferably at least 4 dl / g, and most preferably at least 8 dl / g. Such polyethylene with an IV exceeding 4 dl / g is also called ultra-high molecular weight polyethylene (UHMWPE). Intrinsic viscosity is a measure of molecular weight and can be determined more easily than actual molar mass parameters such as number-average molecular weight and weight-average molecular weight (Mn and Mw). Typically, the IV of filament PE is at most 50 dl / g.

[0080] In one aspect of the invention, the ultra-high molecular weight polyethylene has an intrinsic viscosity (IV) of at least 4 dl / g and contains at least 0.3 short chain branches (SCBs) per thousand total carbon atoms. In another aspect, the short chain branches (SCBs) are derived from copolymers in UHMWPE, wherein the copolymers are selected from groups consisting of α-olefins having at least 3 carbon atoms, cycloolefins having 5 to 20 carbon atoms, and linear, branched, or cyclodienes having 4 to 20 carbon atoms.

[0081] In one aspect of the invention, SCB is C1-C 20 -hydroxyl group, preferably C1-C 20 -O-hydroxyl is selected from methyl, ethyl, propyl, butyl, pentyl, hexyl, octyl, and cyclohexyl, their isomers, and mixtures thereof. In one aspect of the invention, the short-chain branch (SCB) is derived from copolymers in UHMWPE, wherein the copolymer is selected from α-olefins having at least 3 carbon atoms, cycloolefins having 5 to 20 carbon atoms, and linear, branched, or cyclic dienes having 4 to 20 carbon atoms. In one aspect of the invention, the SCB is C1-C 20 -hydroxyl group, preferably C1-C 20 -The hydroxyl group is selected from methyl, ethyl, propyl, butyl, pentyl, hexyl, octyl and cyclohexyl, their isomers and mixtures thereof.

[0082] The HPPE filaments of this invention can be obtained through various processes, such as melt spinning, gel spinning, or solid powder pressing. A preferred method for producing the filaments used in this invention includes melt spinning, which involves feeding polyethylene into an extruder, extruding a molded article at a temperature above the melting point of the polyethylene, and stretching the extruded filaments at a temperature below the melting point of the polyethylene. If desired, the polymer can be mixed with a suitable liquid compound, for example, to form a gel, before feeding the polymer into the extruder; this is preferably the case, for example, when using ultra-high molecular weight polyethylene. In methods for producing the filaments used in this invention, the filaments used in this invention are prepared by gel spinning. Suitable gel spinning processes are described, for example, in GB-A-2042414, GB-A-2051667, EP 0205960 A, and WO 01 / 73173A1. In short, the gel spinning process includes preparing a polyethylene solution with high intrinsic viscosity, extruding the solution into a solution-filament at a temperature above the dissolution temperature, cooling the solution-filament to below the gelation temperature to at least partially gel the polyethylene filament, and drawing the filament before, during, and / or after at least partially removing the solvent.

[0083] Creep is a known parameter in the art and is generally dependent on the tension and temperature applied to the material. Under constant load, HPPE filaments exhibit irreversible deformation (creep) behavior, which is strongly dependent on the load and temperature. High tension and high temperature values ​​generally promote rapid creep behavior. Creep may be (partially) reversible or irreversible upon unloading. The rate of time-dependent deformation is called the creep rate and is a measure of how quickly the filament undergoes said deformation. The initial creep rate may be high, but creep deformation may decrease to a final creep rate that is negligible (e.g., close to zero) during constant load.

[0084] In an embodiment of the composite elongated body according to the invention, the HPPE filament comprises ultra-high molecular weight (UHMWPE) with an intrinsic viscosity (IV) of at least 4 dL / g and containing at least 0.3 short chain branches per thousand total carbon atoms.

[0085] In an embodiment of the composite elongated body according to the invention, the HPPE filament comprises ultra-high molecular weight (UHMWPE) with an intrinsic viscosity (IV) in the range of 4 dL / g to 50 dL / g and containing 0.3 to 10 short chain branches per thousand total carbon atoms.

[0086] In one embodiment, high-performance polyethylene (HPPE) filaments are provided as yarn, the yarn comprising at least two HPPE filaments having a toughness of at least 0.6 N / tex. In one embodiment, the composite elongated body comprises a yarn comprising high-performance polyethylene (HPPE) filaments with a toughness of at least 0.6 N / tex, and wherein the minimum creep rate of the yarn, as described in the Method section herein, is at most 1 × 10⁻⁶ measured at a tension of 900 MPa and a temperature of 30°C. -5 % / Second.

[0087] In an embodiment of the composite elongated body according to the invention, the minimum creep rate of the yarn, as described in the Method section herein, is at most 4 × 10⁻⁶ m² / h² under tension of 900 MPa and at a temperature of 30°C. -6 % / second, preferably up to 2×10 -6 % / Second.

[0088] In an embodiment of the composite elongated body according to the invention, the minimum creep rate of the yarn, as described in the Method section herein, is measured at a tension of 900 MPa and a temperature of 30°C, and is at least about 1 × 10⁻⁶. -10％ / Second.

[0089] In embodiments of the composite elongated body according to the invention, the polymer composition covers at least 50% of the total surface area of ​​the HPPE filaments of the composite elongated body, preferably by electron microscopy analysis of the surface and / or cross-section of the composite elongated body, such as SEM (Scanning Electron Microscopy). Preferably, the polymer composition covers at least 70% of the total surface area of ​​the HPPE filaments of the composite elongated body. In one aspect, the polymer composition covers at least 80% of the total surface area of ​​the HPPE filaments of the composite elongated body. In another aspect, at least 90% of the total surface area of ​​the HPPE filaments of the composite elongated body is covered by the polymer composition.

[0090] The present invention further provides a method for manufacturing a composite elongated body, the method comprising the following steps:

[0091] a) providing a coating composition, wherein the composition comprises

[0092] ■Thermoplastic ethylene copolymers; and

[0093] ■ Lubricant;

[0094] b) Provide a yarn comprising at least two HPPE filaments with a tenacity of at least 0.6 N / tex;

[0095] c) Applying the coating composition to the yarn to obtain a coated yarn; and

[0096] d) Increase the temperature of the coated yarn to obtain a composite elongated body.

[0097] The high molecular weight thermoplastic ethylene copolymer is a copolymer of ethylene, and the peak melting temperature of the thermoplastic ethylene copolymer is in the range of 40°C to 140°C, as measured according to ASTM E794-06.

[0098] In one embodiment, in step d), the temperature is increased to dry the coating composition and to melt the thermoplastic ethylene polymer. In one embodiment, the coating composition herein is an aqueous polymer dispersion. An aqueous dispersion should be understood as a polymer composition in which particles are dispersed in water, with water acting as a non-solvent.

[0099] The thermoplastic ethylene copolymer present in the applied coating composition (e.g., an aqueous dispersion) and ultimately in the obtained composite elongated body of the present invention is a copolymer of ethylene, as described herein.

[0100] The concentration of the thermoplastic ethylene copolymer in the coating composition can vary widely and is primarily limited by the ability to formulate a stable dispersion of the thermoplastic ethylene copolymer in water. Typical concentration ranges are 2% to 80% by weight of the thermoplastic ethylene copolymer in water, where the weight percentage is the weight of the thermoplastic ethylene copolymer in the total weight of the aqueous dispersion. Preferred concentrations are 4% to 60% by weight, more preferably 5% to 50% by weight, and most preferably 6% to 40% by weight. Another preferred concentration of the thermoplastic ethylene copolymer in the dispersion is at least 15% by weight, preferably at least 18% by weight, and even more preferably at least 20% by weight. In another preferred embodiment, the concentration of the thermoplastic ethylene copolymer in the coating composition is 10% to 50% by weight, preferably 15% to 40% by weight, and most preferably 18% to 30% by weight. This preferred higher concentration of thermoplastic ethylene copolymer offers the advantage of providing a higher concentration of composite elongated body while reducing the time and energy required for water removal. For some applications, low-concentration coating compositions containing 2% to 10% by mass of thermoplastic ethylene copolymer in the dispersion may be advantageous, for example, by improving the wetting and impregnation rates of low-viscosity suspensions. Last but not least, the concentration and amount of the coating composition should be selected to provide a composite elongated body in which the desired amount of polymer composition is present in the bulk.

[0101] The coating composition may further include additives, such as ionic or nonionic surfactants, tackifying resins, stabilizers, antioxidants, colorants, or other additives that alter the properties of the polymer composition or the prepared composite elongated body.

[0102] Applying the coating composition to a yarn containing HPPE filaments can be done by methods known in the art, and can depend in particular on the timing of the addition of the composition to the yarn, the nature of the filaments, and the concentration and viscosity of the coating composition. The coating composition can be applied to the yarn, for example by spraying, dipping, brushing, transfer roller coating, etc., depending particularly on the intended amount of the coating polymer composition present in the composite elongated body of the present invention.

[0103] Once the coating composition is applied to a yarn comprising at least two HPPE filaments, the coated yarn is exposed to an elevated temperature, such as a hot air oven. In one aspect, the coated yarn is at least partially dried at the elevated temperature (e.g., in a hot air oven).

[0104] In an embodiment of the method for manufacturing a composite elongated body according to the present invention, during step d), the thermoplastic ethylene copolymer is melted.

[0105] In an embodiment of the method for manufacturing a composite elongated body according to the present invention, in step d), the coated yarn is exposed to an elevated temperature, causing the coating composition to dry and the thermoplastic ethylene copolymer to melt.

[0106] In an embodiment of the method for manufacturing composite elongated bodies according to the present invention, during step d), the coating composition is dried and the thermoplastic ethylene copolymer is melted.

[0107] Drying involves removing, for example, evaporating, at least a portion of the water present in the coated yarn. Preferably, most, more preferably substantially all, of the water is optionally removed in combination with other components during drying. Drying, i.e., the removal of water, can be carried out by methods known in the art. Typically, the evaporation of water involves raising the temperature of the coated yarn to or above the boiling point of water. The temperature increase can be aided or substituted by a decrease in pressure and / or by continuous refreshing of the surrounding atmosphere. Typical drying conditions are temperatures between 40°C and 130°C, preferably between 50°C and 120°C.

[0108] Step d) of exposing the coated yarn to an elevated temperature in the method of the present invention may include heating the filament containing the coating composition to a temperature in the range of the peak melt temperature of the thermoplastic ethylene copolymer to 153°C. This heating may be performed before, during, and / or after partially drying the coating composition. Typically, heating the filament containing the coating composition to a temperature in the range of the peak melt temperature of the thermoplastic ethylene copolymer to 153°C is performed during and / or after at least partially drying the coating composition. In one aspect, this heating is performed after at least partially drying the coating composition. Heating may be performed by holding the coated yarn in an oven set to an elevated temperature for a specified dwell time, subjecting the impregnated filament to heat radiation, or contacting the body with a heating medium (e.g., a heating fluid, a heating gas flow, or a heated surface). In one aspect, heating is performed in a hot air oven. Preferably, the elevated temperature is at least 2°C higher than the peak melt temperature of the thermoplastic ethylene copolymer, preferably at least 5°C, and most preferably at least 10°C. In one aspect, the elevated temperature is 2°C to 100°C higher than the peak melt temperature of the thermoplastic ethylene copolymer. At such temperatures, the thermoplastic ethylene copolymer melts and adheres to the filaments, fusing the filaments together in a monofilamentary structure, and obtaining a composite elongated body. In one aspect, the elevated temperature is at most 153°C, preferably at most 150°C, more preferably at most 145°C, and most preferably at most 140°C. This upper limit is also referred to herein as the maximum temperature. In one aspect, the residence time is preferably between 2 seconds and 100 seconds, more preferably between 3 seconds and 60 seconds, and most preferably between 4 seconds and 30 seconds.

[0109] In a preferred embodiment of the method for manufacturing a composite elongated body, the heating of the coated yarn overlaps with, and more preferably combines with, the drying step of the coating composition. It can be proven practical to apply a temperature gradient to the coated yarn in step d), thereby increasing the temperature over a period of time from approximately room temperature to the maximum temperature of the heating step, during which the coated yarn undergoes a continuous process from drying the coating composition to at least partial melting of the thermoplastic ethylene copolymer. In one aspect of the method for manufacturing a composite elongated body, in step d), the coated yarn undergoes a continuous process from drying the coating composition to at least partial melting of the thermoplastic ethylene polymer. In one aspect of this method, in step d), the increased temperature is a temperature gradient in which the continuously increasing temperature falls within a temperature range of 20°C to at least 2°C, preferably at least 5°C, and most preferably at least 10°C higher than the peak melting temperature of the thermoplastic ethylene copolymer. In one aspect of this method, in step d), the increased temperature is a temperature gradient from an initial temperature in the range of 20°C to 153°C to a higher final temperature in the range of 20°C to 153°C.

[0110] In a preferred embodiment of the method for manufacturing a composite elongated body, once steps a), b), c), and d) are completed, the polymer composition is present throughout the entire composite elongated body. In a preferred embodiment of the method for manufacturing a composite elongated body, once steps a), b), c), and d) are completed, the thermoplastic ethylene copolymer and lubricant are present throughout the entire composite elongated body. In a preferred embodiment of the method for manufacturing a composite elongated body, once steps a), b), c), and d) are completed, the thermoplastic ethylene copolymer and wax are present throughout the entire composite elongated body.

[0111] In one aspect of the composite elongated body, the composite elongated body contains more than 50% by mass of UHMWPE as described herein. In another aspect of the composite elongated body, the composite elongated body comprises 55% to 95% by mass of UHMWPE as described herein. A preferred embodiment of the invention relates to a composite elongated body containing more than 70% by mass of UHMWPE as described herein, preferably 80% by mass of UHMWPE, preferably more than 90% by mass of UHMWPE, wherein the mass percentage is expressed as the ratio of the mass of UHMWPE to the total mass of the composite elongated body. In yet another preferred embodiment, the UHMWPE present in the composite elongated body is contained in HPPE filaments of the composite elongated body. In embodiments of the composite elongated body, the composite elongated body comprises 55% to 95% by mass of UHMWPE in the form of HPPE filaments. In embodiments of the composite elongated body according to the invention, the composite elongated body comprises at least 80% by mass of UHMWPE present in the form of HPPE filaments. In an embodiment of the composite elongated body according to the invention, the composite elongated body comprises at least 85% by mass UHMWPE in the form of HPPE filaments. In another embodiment of the composite elongated body according to the invention, the composite elongated body comprises 85% to 95% by mass UHMWPE in the form of HPPE filaments.

[0112] The present invention also relates to composite elongated bodies produced using a method for manufacturing composite elongated bodies according to the present invention. Such composite elongated bodies comprise HPPE filaments as defined herein and a polymer composition comprising a thermoplastic ethylene copolymer as defined herein and a lubricant, wherein the thermoplastic ethylene copolymer is a copolymer of ethylene as defined herein. Such composite elongated bodies have the preferred embodiments and potential advantages discussed above or below with respect to the method of the present invention, and the preferred embodiments of the composite elongated bodies are potentially applicable to the method of the present invention for manufacturing composite elongated bodies, and vice versa.

[0113] The present invention further relates to an elongated body comprising a composite elongated body according to the invention as described herein. The term "lengthy body" includes, but is not limited to, strands, cables, cords, ropes, belts, strips, hoses, and tubes. In one aspect, the elongated body comprises 2 to 100,000 composite elongated bodies according to the invention. In one aspect, the elongated body comprises 3 to 10,000 composite elongated bodies according to the invention. In one aspect, the elongated body comprises 5 to 1,000 composite elongated bodies according to the invention. As used herein, an elongated body is understood to be a slender body, the length dimension of which is much greater than the lateral dimensions of its width and thickness or diameter. Preferably, the length dimension is at least 10 times the width or thickness of the elongated body (whichever is greater), more preferably at least 20 times, even more preferably at least 50 times, and most preferably at least 100 times greater. The cross-sectional shape of the elongated body may be circular or approximately circular, elliptical, or rectangular.

[0114] In its simplest form, the elongated body comprises two or more composite elongated bodies placed side by side and not twisted around each other. This untwisted composite elongated body may also be referred to as a bundle and can have various cross-sectional shapes as described above. The bundled composite elongated bodies will be oriented substantially in a single direction (i.e., the length direction of the elongated body). Furthermore, the elongated body may consist of two or more twisted composite elongated bodies. The elongated body according to the invention generally exhibits improved abrasion resistance. Improved abrasion resistance can be demonstrated in cable guide abrasion tests (e.g., cable guide tests described in the Methods section herein). The elongated body according to the invention generally exhibits improved bending performance. Improved bending performance can be demonstrated in cyclic bending on pulleys (CBOS) tests, such as the CBOS test described in the Methods section herein.

[0115] The present invention relates to a method for manufacturing an elongated body, comprising the step of assembling two composite elongated bodies as defined herein to form the elongated body, wherein the elongated body is preferably a rope, such as a laid rope or a braided rope.

[0116] This invention relates to a rope comprising at least three composite elongated bodies according to the invention. In one aspect, the rope comprises 3 to 1000 composite elongated bodies according to the invention. In another aspect, the rope comprises 3 to 10,000 composite elongated bodies according to the invention. In yet another aspect, the rope comprises 3 to 100,000 composite elongated bodies according to the invention. The rope according to the invention exhibits improved abrasion resistance. This improved abrasion resistance can be demonstrated in cable guide abrasion tests (e.g., cable guide tests as described in the Methods section herein). In one aspect, the rope according to the invention exhibits improved abrasion resistance compared to a reference rope, preferably wherein the reference rope is a rope free of polymer compositions as defined herein. In one aspect, the rope according to the invention exhibits improved abrasion resistance compared to a reference rope, wherein the reference rope comprises a thermoplastic ethylene copolymer as defined in any of the foregoing embodiments and lacks a lubricant as defined herein.

[0117] Ropes according to the invention generally exhibit improved bending properties. Improved bending properties can be demonstrated in a cyclic bending on pulley (CBOS) test, such as the CBOS test described herein. In one aspect, the rope according to the invention exhibits improved bending properties compared to a reference rope, preferably wherein the reference rope is a rope free of polymer compositions as defined herein. In another aspect, the rope according to the invention exhibits improved bending properties compared to a reference rope, wherein the reference rope comprises a thermoplastic ethylene copolymer as defined in any of the foregoing embodiments and lacks a lubricant as defined herein.

[0118] In one embodiment, the rope according to the invention comprises a composite elongated body according to the invention in the range of 80% to 100% by mass based on the total weight of the rope. In a preferred aspect, the total weight of the rope is 90% to 100% by mass based on the total weight of the rope. The total weight of the rope here refers to the weight of the rope without any covering (if present). In one aspect, the rope consists of an assembled composite elongated body according to the invention.

[0119] In a preferred embodiment of the rope according to the invention, the rope comprises ultra-high molecular weight polyethylene (UHMWPE) filaments, more preferably gel-spun UHMWPE filaments. In another aspect, at least 50% by mass, more preferably at least 80% by mass, even more preferably at least 90% by mass, and most preferably all high-performance polyethylene filaments present in the rope are UHMWPE filaments.

[0120] The ropes according to the invention can have various constructions, including stranded, braided, parallel, and wire rope-like constructions. Generally, the rope is composed of strands, typically stranded or braided. The number of strands in the rope can also vary widely, but is generally at least 3 and preferably at most 16 to achieve a combination of good performance and ease of manufacture. The braided rope according to the invention preferably has at least 3 strands. There is no upper limit to the number of strands, but in practice, the rope will generally have no more than 32 strands. Ropes with 8 or 12 strand braided constructions are particularly suitable. Such ropes offer a favorable combination of toughness and resistance to bending fatigue and can be economically manufactured on relatively simple machines.

[0121] Typically, ropes have an approximately circular or round cross-section, but ropes with an elliptical cross-section (meaning that the cross-section of a tensioned rope is flat, elliptical, or even (depending on the number of main strands) almost rectangular) are known. The aspect ratio (i.e., the ratio of the larger diameter to the smaller diameter (or the ratio of width to thickness)) of such an elliptical cross-section is preferably in the range of 1.2 to 4.0.

[0122] A preferred embodiment of the present invention relates to an elongated body comprising a composite elongated body according to the present invention and containing greater than 70% by mass of UHMWPE as described herein, preferably 80% by mass of UHMWPE, preferably greater than 90% by mass of UHMWPE, wherein the mass% is expressed as the ratio of the mass of UHMWPE to the total mass of the elongated body. In yet another preferred embodiment, the UHMWPE present in the elongated body is contained within HPPE filaments of the composite elongated body.

[0123] In one embodiment, the elongated body according to the invention is constructed from a composite elongated body according to the invention.

[0124] The composite elongated body according to the invention can be used, for example, to manufacture elongated bodies, such as ropes. The composite elongated body according to the invention can be used, for example, to manufacture articles, such as nets, such as fishing nets or aquaculture nets (typically used for fish farming); slings, such as round slings, webbing slings, or rope slings; synthetic links; synthetic chains or reinforcing bars.

[0125] Therefore, one aspect of the invention includes an article according to the invention comprising a composite elongated body according to the invention, such as a net (e.g., a fishing net or aquaculture net comprising a composite elongated body), a sling, a synthetic chain or rib comprising a composite elongated body according to the invention. The article generally exhibits improved abrasion resistance and / or improved overall durability. An article according to the invention may comprise 2 to 100,000 composite elongated bodies according to the invention.

[0126] In embodiments of the invention, the article according to the invention comprises a composite elongated body according to the invention and contains greater than 70% by mass of UHMWPE, preferably 80% by mass of UHMWPE, and preferably greater than 90% by mass of UHMWPE, wherein the mass percentage is expressed as the ratio of the mass of UHMWPE to the total mass of the article. In yet another preferred embodiment, the UHMWPE present in the article is contained within the HPPE filaments of the article. In one embodiment, the article is constructed from a composite elongated body.

[0127] The synthetic link according to the invention comprises at least one composite elongated body according to the invention. In one embodiment, the synthetic link according to the invention comprises 2 to 10,000 composite elongated bodies according to the invention.

[0128] The synthetic chain according to the invention comprises at least one composite elongated body according to the invention.

[0129] In one embodiment, the synthetic chain according to the invention comprises at least two interconnected synthetic links according to the invention. In one embodiment, the synthetic chain according to the invention comprises 2 to 10,000 interconnected synthetic links according to the invention. In one embodiment, the synthetic chain according to the invention comprises 2 to 1,000 interconnected synthetic links according to the invention. In one embodiment, the synthetic chain according to the invention comprises at least two interconnected synthetic links, wherein at least a portion of said link comprises a composite elongated body according to the invention. In one embodiment, the synthetic chain according to the invention comprises multiple interconnected links, wherein at least a portion of said link comprises a composite elongated body according to the invention. In one embodiment, the synthetic chain according to the invention comprises multiple interconnected links, wherein each link comprises a composite elongated body according to the invention. Chains according to the invention are generally suitable for mooring or anchoring vessels for securing cargo in road, rail, waterway, and air transport, and are suitable for conveying, lifting, suspending, and hoisting applications. Synthetic chains according to the invention may have improved particle ingress resistance, abrasion resistance, and / or improved overall durability.

[0130] In one aspect, the article of manufacture according to the invention is a personal protective item (e.g., a helmet, a body panel) or a glove, said personal protective item or glove comprising at least one composite elongated body as described herein.

[0131] The present invention further relates to a belt comprising at least three composite elongated bodies according to the invention. The belt is a flexible material loop typically used to mechanically connect two or more axes of rotation, usually parallel. The belt can be used as a source of motion to efficiently transmit power or track relative motion. In one aspect, the belt according to the invention exhibits improved bending properties compared to a reference belt, preferably wherein the reference belt is a belt free of polymer compositions as defined herein. In one aspect, the belt according to the invention exhibits improved bending properties compared to a reference belt, wherein the reference belt is a belt comprising a thermoplastic ethylene copolymer as defined in any of the foregoing embodiments and lacking a lubricant as defined herein. In one aspect, the article according to the invention is a personal protective item (e.g., a helmet, body panel) or glove composed of 1 to 5000 composite elongated bodies as described herein. In one aspect, the article according to the invention is a personal protective item (e.g., a helmet, body panel) or glove composed of 1 to 10000 composite elongated bodies as described herein.

[0132] The present invention further relates to a net, such as a net for fishing or fish farming, the net comprising at least one composite elongated body as described herein. The present invention further relates to a net comprising at least three composite elongated bodies according to the present invention. The net may comprise up to 1000 composite elongated bodies according to the present invention. The practical upper limit for the number of composite elongated bodies in the net is eight, preferably seven, six, or five. The net herein may comprise one, two, three, four, five, six, seven, or eight composite elongated bodies according to the present invention.

[0133] The benefits of lubricants in polymer compositions may include improved long-term use of webs comprising composite elongators when used in aquatic environments. Without wishing to be bound by any theory, the enhanced durability may result from reduced wear between the filaments in at least one cord and the composite elongator, or between the cords of the web.

[0134] In embodiments of this disclosure, the net is to be used for fish farming and is also referred to as an aquaculture net. Such nets are known to those skilled in the art and can have a wide range of sizes, qualities, constructions, and quantities and types of cords. The cords of the net of this invention can be joined by techniques such as knots or clips, but joints can also be manufactured as part of the process of making the net from the cords. Typically, the mesh size of the net is at least 8 mm, preferably at least 10 mm, at least 12 mm, at least 14 mm, or at least 16 mm. There is no particular limitation on the maximum mesh size of the net of this disclosure, and it can be up to 500 mm, preferably up to 400 mm, up to 300 mm, up to 200 mm, up to 100 mm, up to 90 mm, up to 80 mm, up to 70 mm, or up to 60 mm, depending on, for example, the type of fish and the conditions of use. The mesh size of a knotted net is typically determined as the distance from knot to knot throughout the net, i.e., the center-to-center distance between adjacent knots of the net. In the case of knotless meshes, such as knotless meshes made of interlacing, the mesh size is the distance between two joints measured across the mesh space, taking the distance between two opposite joints, as further described in the method.

[0135] The construction of the cords in the net of the present invention is not particularly limited, and can be woven, twisted or arranged in parallel, especially as single or multiple composite elongated bodies.

[0136] In one embodiment, the net according to the invention is a knitted knotless net, commonly referred to as a Raschel net, which includes at least one composite elongated element according to the invention. In another embodiment, the net according to the invention is a knitted knotless net, commonly referred to as a Raschel net, which includes 1 to 1000 composite elongated elements according to the invention. In such embodiments, the knotless net is made by knitting techniques, for example, warp knitting techniques using a Raschel frame. Figure 8aAn example of a portion of such a knitted knotless web is shown, the portion having a hexagonal mesh and joints formed by mixed cords. In one aspect, the web comprises cords joined in the mesh, wherein each cord comprises one or more composite elongators according to the invention. In another embodiment, the web according to the invention is a Raschel web comprising at least one cord comprising at least one composite elongator according to the invention, preferably one, two, or three composite elongators. In another embodiment, the web according to the invention is a Raschel web comprising at least two cords, each cord comprising one, two, or three composite elongators, for example, at least one cord as a warp and at least one cord as a weft. In another embodiment, the web is a knitted knotless web made of three composite elongators. The practical upper limit for the number of composite elongators per cord is three. If a cord in a Raschel web comprises more than one composite elongator, such cords typically comprise parallel composite elongators.

[0137] In one embodiment, the net is a woven net, preferably a knotless woven net, wherein the cord includes at least one composite elongator, such as one, two, or three composite elongators as described herein. In one embodiment, the net is a woven net, preferably a knotless woven net, wherein the cord has four, eight, twelve, sixteen, twenty, or twenty-four composite elongators.

[0138] In one embodiment, the mesh construction includes a cord, which is a braid comprising at least three composite elongated bodies. Braids and braiding processes are well known. Typically, a braid is formed by diagonally crossing multiple elongated bodies such that each elongated body alternately passes above and below one or more other elongated bodies to form a continuous cord.

[0139] An alternative, but also beneficial, mesh construction includes twisted cords instead of braided cords, wherein two composite elongated bodies are twisted together to form the cord.

[0140] The cords of the net of the present invention can be joined using standard techniques (e.g., knots, loops, or interlacing). Preferably, the net of the present invention is a knotless net. Compared to constructions in which the cords are joined by other means (e.g., knots or loops), the knotless construction of the net generally results in further improvement in the net's strength against pressure washing, especially in the retention of the net's breaking strength.

[0141] The present invention also relates to a crane. A crane is a type of machine typically equipped with ropes or chains and pulleys, used for lifting and lowering materials and moving said materials horizontally. It is primarily used for lifting heavy objects and transporting said heavy objects to other locations. Cranes are commonly used for loading and unloading goods in the transportation industry, moving materials in the construction industry, and assembling heavy equipment in manufacturing. The crane according to the invention includes pulleys and an elongated body according to the invention, such as a rope according to the invention. In one aspect, the crane according to the invention includes pulleys and a belt according to the invention. In another aspect, the crane according to the invention includes pulleys and a chain according to the invention. The crane according to the invention includes a winch and an elongated body according to the invention, such as a rope according to the invention.

[0142] A guide is a device that guides a line, rope, or cable around an object to avoid or prevent its lateral movement. Typically, a guide is a loop or hook. A guide can be a separate piece of hardware or it can be a hole in a structure. An additional use on ships is to prevent loose ends of the line from slipping around the deck. While guides are most common in marine applications, they can be found wherever rigging is used. In cross-country operations, guides are used to guide winch cables and remove lateral strain from the winch.

[0143] This invention also relates to marine vessels, sailboats, small boats, ships, or offshore platforms comprising a guide wire and a rope according to the invention. The invention also relates to a means of transportation, such as a car, truck, airplane, train, or tram, comprising a guide wire and a rope according to the invention. Small boats are vessels of various types and sizes, but are generally smaller than ships, which are distinguished by their larger size, shape, cargo or passenger capacity, or their ability to carry small boats. Ships are large vessels capable of navigating the world's oceans and other sufficiently deep waterways, carrying cargo or passengers, or supporting specialized tasks such as defense, research, and fishing. Offshore platforms as used herein include, but are not limited to, oil platforms, offshore platforms, and offshore drilling rigs.

[0144] The present invention further provides a method for manufacturing articles, the method comprising the steps of creating / producing articles from elongated bodies and / or composite elongated bodies, preferably the articles being nets, synthetic chains, personal protective equipment, or gloves.

[0145] The present invention further relates to the use of coating compositions as defined herein for improving the bending properties of elongated bodies according to the invention.

[0146] The present invention further relates to the use of coating compositions as defined herein for improving the bending properties of ropes.

[0147] The present invention further relates to the use of coating compositions as defined herein for improving wear performance, particularly for improving external wear fatigue of elongated bodies according to the present invention.

[0148] The present invention also relates to the use of coating compositions as defined herein for improving the bending properties of ropes.

[0149] The present invention further relates to the use of coating compositions as defined herein for improving wear properties, particularly improving external wear fatigue of ropes.

[0150] In particular, the present invention provides the use of polymeric compositions as defined herein for reducing wear on ropes, synthetic chains, or belts comprising such compositions, wherein the ropes, synthetic chains, or belts comprise high-performance polyethylene (HPPE) filaments with a toughness of at least 0.6 N / tex.

[0151] Wear can be measured as described in this article. A typical method is the cable guide wear performance test. For example, the wear performance test of a 10mm rope cable guide.

[0152] This invention provides the use of coating compositions as defined herein for the flexural properties of ropes, synthetic chains, or belts comprising such compositions.

[0153] The present invention further relates to a method for lifting and / or placing an object, the method comprising the following steps:

[0154] a) Provide a rope, chain, or belt according to the invention;

[0155] b) Attach the rope, chain, or belt to the object to be lifted; and

[0156] c) Use the rope, chain, or belt to lift and / or place objects.

[0157] In one implementation, the method of lifting and / or placing an object includes the following steps:

[0158] a) Provide the rope as defined herein;

[0159] b) Attach the rope to the suspended object; and

[0160] c) Use ropes to lift and / or place objects.

[0161] The lifting and / or placement method according to the invention includes lifting and mooring an object onto the seabed. The lifting and / or placement method according to the invention also includes lifting and placing an object onto a vessel, onto land, or onto land. Other applications include offshore oil and gas exploration, oceanography, seismology, and other industrial applications.

[0162] The present invention will be further described below through implementation methods, examples, and comparative experiments.

[0163] The following describes methods for determining the various parameters that can be used to define the present invention.

[0164] This invention includes, but is not limited to, the following embodiments. Features of any embodiment can be combined with features of another embodiment. Thus, for example, features of a composite elongated body can be combined with any features of an elongated body embodiment, a method embodiment, and / or a use embodiment, and vice versa.

[0165] Implementation method:

[0166] 1. A composite elongated body (3), the composite elongated body comprising a high-performance polyethylene (HPPE) filament (2) having a toughness of at least 0.6 N / tex and a polymer composition (10) extending throughout the composite elongated body, wherein the polymer composition comprises:

[0167] i. thermoplastic ethylene copolymers, and

[0168] ii. Lubricant;

[0169] Furthermore, the thermoplastic ethylene copolymer is a copolymer of ethylene, and the peak melting temperature of the semi-crystalline polymer is in the range of 40°C to 140°C, as measured according to ASTM E794-06, taking into account the second heating profile at a heating rate of 10 K / min on a dry sample.

[0170] 2. A composite elongated body (3), the composite elongated body comprising:

[0171] - Yarn (1), said yarn comprising at least two high-performance polyethylene (HPPE) filaments (2) with a tensile strength of at least 0.6 N / tex; and

[0172] - A polymer composition (10) pervading the composite elongated body, wherein the polymer composition comprises

[0173] i. thermoplastic ethylene copolymers, and

[0174] ii. Lubricant;

[0175] Furthermore, the thermoplastic ethylene copolymer is a copolymer of ethylene, and the peak melting temperature of the polymer composition is in the range of 40°C to 140°C.

[0176] 3. The composite elongated body according to any of the foregoing embodiments, wherein the density of the polymer composition is 860 kg / m² as measured according to ISO 1183-04. 3 Up to 970kg / m 3 Within the range.

[0177] 4. The composite elongated body according to any of the foregoing embodiments, wherein the heat of fusion of the polymer composition is at least 5 J / g.

[0178] 5. The composite elongated body according to any of the foregoing embodiments, wherein the peak melting temperature of the polymer composition is in the range of 50°C to 120°C.

[0179] 6. The composite elongated body according to any of the foregoing embodiments, wherein the peak melting temperature is the melting temperature of the highest melting peak.

[0180] 7. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer includes an ethylene-propylene copolymer.

[0181] 8. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer comprises an ethylene copolymer having comonomers such as 1-butene and isobutene.

[0182] 9. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer comprises a copolymer of ethylene and a comonomer containing at least one heteroatom, said comonomer being, for example, acrylic acid, methacrylic acid, vinyl acetate, maleic anhydride, ethyl acrylate, or methyl acrylate.

[0183] 10. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer comprises an α-olefin copolymer or a cycloolefin copolymer, or a blend thereof.

[0184] 11. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer comprises a copolymer of ethylene and contains one or more olefins having 2 to 12 C atoms, preferably ethylene, propylene, isobutene, 1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene, acrylic acid, methacrylic acid or vinyl acetate as comonomers.

[0185] 12. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer is an ethylene-propylene copolymer.

[0186] 13. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer is a copolymer of ethylene and comonomers such as 1-butene and isobutene.

[0187] 14. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer is a copolymer of ethylene and a comonomer containing at least one heteroatom, the comonomer being, for example, acrylic acid, methacrylic acid, vinyl acetate, maleic anhydride, ethyl acrylate, or methyl acrylate.

[0188] 15. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer is an α-olefin copolymer or a cycloolefin copolymer, or a blend thereof.

[0189] 16. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer is a copolymer of ethylene and contains one or more olefins having 2 to 12 carbon atoms, preferably ethylene, propylene, isobutene, 1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene, acrylic acid, methacrylic acid or vinyl acetate as comonomers.

[0190] 17. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer is prepared by copolymerization of ethylene with an olefinically unsaturated monomer.

[0191] 18. The composite elongated body according to any of the foregoing embodiments, wherein the olefinic unsaturated monomer comprises oxygen and / or nitrogen atoms.

[0192] 19. The composite elongated body according to any of the foregoing embodiments, wherein the olefinic unsaturated monomer comprises a carboxylic acid group or a derivative thereof that produces an acylated polymer.

[0193] 20. The composite elongated body according to any of the foregoing embodiments, wherein the density of the thermoplastic ethylene copolymer is 860 kg / m² as measured according to ISO 1183-04. 3 Up to 970kg / m 3 Within the range.

[0194] 21. The composite elongated body according to any of the foregoing embodiments, wherein the density of the thermoplastic ethylene copolymer is 870 kg / m² as measured according to ISO 1183-04. 3 Up to 930kg / m 3 Within the range.

[0195] 22. The composite elongated body according to any of the foregoing embodiments, wherein the density of the thermoplastic ethylene copolymer is 870 kg / m² as measured according to ISO 1183-04. 3 Up to 920kg / m 3 Within the range.

[0196] 23. The composite elongated body according to any of the foregoing embodiments, wherein the density of the thermoplastic ethylene copolymer is 875 kg / m² as measured according to ISO 1183-04. 3 Up to 910 kg / m 3 Within the range.

[0197] 24. The composite elongated body according to any of the foregoing embodiments, wherein the density of the thermoplastic ethylene copolymer is 875 kg / m² as measured according to ISO 1183-04. 3 Up to 900kg / m 3 Within the range.

[0198] 25. The composite elongated body according to any of the foregoing embodiments, wherein the density of the polymer composition is 870 kg / m² as measured according to ISO 1183-04. 3 Up to 930kg / m 3 Within the range.

[0199] 26. The composite elongated body according to any of the foregoing embodiments, wherein the density of the polymer composition is 870 kg / m² as measured according to ISO 1183-04. 3 Up to 920kg / m 3 Within the range.

[0200] 27. The composite elongated body according to any of the foregoing embodiments, wherein the density of the polymer composition is 875 kg / m² as measured according to ISO 1183-04. 3 Up to 910 kg / m 3 Within the range.

[0201] 28. The composite elongated body according to any of the foregoing embodiments, wherein the density of the polymer composition is 875 kg / m² as measured according to ISO 1183-04. 3 Up to 900kg / m 3 Within the range.

[0202] 29. The composite elongated body according to any of the foregoing embodiments, wherein the lubricant comprises: wax, including synthetic waxes such as PE wax and PP wax, animal waxes such as beeswax, plant waxes such as carnauba wax; synthetic greases or oils; mineral greases or oils; inorganic solids such as graphite or molybdenum disulfide; ceramics, such as ceramic lubricants or ceramic coatings; PUR; acrylates; mixtures of PURs and acrylates; or any combination thereof.

[0203] 30. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises

[0204] a) 55-95% by mass of high-performance polyethylene filament;

[0205] b) 5-45% by mass of thermoplastic ethylene copolymers with a peak melt temperature of 40-140°C, as measured according to ASTM E794-06;

[0206] c) 5-45% by mass of lubricant; and

[0207] d) 0-5.0% by weight of additives;

[0208] The sum of components a) to d) is 100% by mass.

[0209] 31. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises

[0210] a) 70-85% by mass of high-performance polyethylene filament;

[0211] b) 7.5-30% by mass of thermoplastic ethylene copolymers with a peak melt temperature of 40-140°C, as measured according to ASTM E794-06;

[0212] c) 7.5-25% by mass of lubricant; and

[0213] d) 0-5.0% by weight of additives;

[0214] The sum of components a) to d) is 100% by mass.

[0215] 32. The composite elongated body according to any of the foregoing embodiments, wherein the ratio of component b) to component c) in the coating composition based on solid content is 1:1 to 1:10, preferably 1:1 to 1:5.

[0216] 33. The composite elongated body according to any of the foregoing embodiments, wherein the ratio of component b) to component c) in the coating composition based on solid content is 1:1 to 1:5.

[0217] 34. The composite elongated body according to any of the foregoing embodiments, wherein the ratio of component b) to component c) in the coating composition based on solid content is 1:1.5 to 1:4.

[0218] 35. The composite elongated body according to any of the foregoing embodiments, wherein the ratio of component b) to component c) in the coating composition based on solid content is 1:2 to 1:1.35.

[0219] 36. The composite elongated body according to any of the foregoing embodiments, wherein the peak melting temperature of the polymer composition is in the range of 50°C to 130°C, preferably wherein the peak melting temperature is in the range of 60°C to 120°C.

[0220] 37. The composite elongated body according to any of the foregoing embodiments, wherein the heat of fusion of the polymer composition is at least 10 J / g.

[0221] 38. The composite elongated body according to any of the foregoing embodiments, wherein the heat of fusion of the polymer composition is at least 15 J / g, preferably at least 20 J / g.

[0222] 39. The composite elongated body according to any of the foregoing embodiments, preferably wherein the heat of fusion of the polymer composition is at least 30 J / g, preferably at least 50 J / g.

[0223] 40. The composite elongated body according to any of the foregoing embodiments, wherein the heat of fusion of the polymer composition is at most 280 J / g, preferably at most 200 J / g.

[0224] 41. The composite elongated body according to any of the foregoing embodiments, wherein the thermoplastic ethylene copolymer is a semi-crystalline polyolefin with a peak melting temperature in the range of 40°C to 140°C and a second heating profile taking into account a heating rate of 10 K / min on a dry sample, and a heat of fusion measured according to ASTM E794-06 and ASTM E793-85, respectively, having a heat of fusion of at least 5 J / g.

[0225] 42. The composite elongated body according to any of the foregoing embodiments, wherein the molecular weight of the thermoplastic ethylene copolymer, as measured using SEC-MALS, is 6,000 Daltons or more preferably 8,000 Daltons or higher.

[0226] 43. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises a polymer composition in an amount ranging from 5% by mass to 45% by mass of a matrix based on the total weight of the composite elongated body.

[0227] 44. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises, based on the total weight of the composite elongated body, in an amount ranging from 8% to 25% by mass, preferably the composite elongated body comprises, based on the total weight of the composite elongated body, in an amount ranging from 12% to 20% by mass, the polymer composition.

[0228] 45. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises at least two filaments.

[0229] 46. ​​The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises at least 20 filaments.

[0230] 47. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises at least 100 filaments, preferably the composite elongated body comprises at least 200 filaments.

[0231] 48. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises at least 400 filaments, preferably the composite elongated body comprises at least 800 filaments.

[0232] 49. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises up to 1,500 filaments, preferably up to 1,200 filaments, more preferably up to 5,000 filaments.

[0233] 50. The composite elongated body according to any of the foregoing embodiments, wherein the yarn comprises at least two HPPE filaments.

[0234] 51. The composite elongated body according to any of the foregoing embodiments, wherein the yarn comprises at least 20 filaments.

[0235] 52. The composite elongated body according to any of the foregoing embodiments, wherein the yarn comprises at least 100 filaments, preferably the yarn comprises at least 200 filaments.

[0236] 53. The composite elongated body according to any of the foregoing embodiments, wherein the yarn comprises at least 400 filaments, preferably the composite elongated body comprises at least 800 filaments.

[0237] 54. The composite elongated body according to any of the foregoing embodiments, wherein the yarn comprises up to 1,500 filaments, preferably up to 1,200 filaments, and more preferably up to 5,000 filaments.

[0238] 55. The composite elongated body according to any of the foregoing embodiments, wherein the HPPE filament has a toughness of at least 1.0 N / tex.

[0239] 56. The composite elongated body according to any of the foregoing embodiments, wherein the HPPE filament has a toughness of at least 1.5 N / tex, preferably at least 1.8 N / tex.

[0240] 57. The composite elongated body according to any of the foregoing embodiments, wherein the HPPE filament has a toughness of at least 2 N / tex, preferably at least 3 N / tex.

[0241] 58. The composite elongated body according to any of the foregoing embodiments, wherein the HPPE filament has a toughness of at least 3.5 N / tex, preferably at least 4 N / tex.

[0242] 59. The composite elongated body according to any of the foregoing embodiments, wherein the HPPE filament has a toughness of at least 2.8 N / tex, preferably at least 3.2 N / tex, and more preferably at least 3.5 N / tex.

[0243] 60. The composite elongated body according to any of the foregoing embodiments, wherein the HPPE filament has a toughness of at most 6.0 N / tex, preferably at most 5.5 N / tex, and more preferably at most 5.0 N / tex.

[0244] 61. The composite elongated body according to any of the foregoing embodiments, wherein the HPPE filament comprises ultra-high molecular weight polyethylene (UHMWPE).

[0245] 62. The composite elongated body according to any of the foregoing embodiments, wherein the HPPE filament is an ultra-high molecular weight (UHMWPE) filament.

[0246] 63. The composite elongated body according to any of the foregoing embodiments, wherein the IV of the UHMWPE is between 4 dL / g and 40 dL / g, preferably between 6 dL / g and 30 dL / g, and most preferably between 8 dL / g and 25 dL / g.

[0247] 64. The composite elongated body according to any of the foregoing embodiments, wherein the UHMWPE has an intrinsic viscosity (IV) of at least 4 dL / g and contains at least 0.3 short-chain branches (SCB) per thousand total carbon atoms.

[0248] 65. The composite elongated body according to any of the foregoing embodiments, wherein the short-chain branch (SCB) is derived from the comonomer in the UHMWPE, wherein the comonomer is selected from the group consisting of: α-olefins having at least 3 carbon atoms, cyclic olefins having 5 to 20 carbon atoms, and straight-chain, branched, or cyclic dienes having 4 to 20 carbon atoms.

[0249] 66. The composite elongated body according to any of the foregoing embodiments, wherein the SCB is C1-C 20 Hydrocarbon groups, preferably C1-C 20 The hydrocarbon group is selected from the group consisting of: methyl, ethyl, propyl, butyl, pentyl, hexyl, octyl, and cyclohexyl, their isomers, and mixtures thereof.

[0250] 67. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises at least 70% by mass of the UHMWPE based on the total weight of the composite elongated body.

[0251] 68. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises at least 75% by mass of the UHMWPE based on the total weight of the composite elongated body, preferably at least 80% by mass of the UHMWPE based on the total weight of the composite elongated body.

[0252] 69. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body comprises at least 85% by mass of the UHMWPE based on the total weight of the composite elongated body, preferably at least 90% by mass of the UHMWPE based on the total weight of the composite elongated body.

[0253] 70. The composite elongated body according to any of the foregoing embodiments, wherein the minimum creep rate of the multifilament HPPE yarn comprising the high-performance polyethylene HPPE filament with a strength of at least 0.6 N / tex as measured in the Methods section is at most 1 × 10⁻⁶. -5 % / second, as measured under tension of 900 MPa and temperature of 30°C.

[0254] 71. The composite elongated body according to any of the foregoing embodiments, wherein the minimum creep rate measured at a tension of 900 MPa and a temperature of 30°C is at most 4 × 10⁻⁶. -6 % / second, preferably up to 2×10 -6 % / Second.

[0255] 72. The composite elongated body according to any of the foregoing embodiments, wherein the minimum creep rate, as measured under a tension of 900 MPa and a temperature of 30°C, is at least about 1 × 10⁻⁶. -10 % / Second.

[0256] 73. The composite elongated body according to any of the foregoing embodiments, wherein the polymer composition covers at least 50% of the total surface area of ​​the HPPE filament of the composite elongated body, and preferably the surface and / or cross-section of the composite elongated body are analyzed by electron microscopy, such as SEM (Scanning Electron Microscopy).

[0257] 74. The composite elongated body according to any of the foregoing embodiments, wherein the polymer composition covers at least 70% of the total surface area of ​​the HPPE filament of the composite elongated body.

[0258] 75. The composite elongated body according to any of the foregoing embodiments, wherein the polymer composition covers at least 80% of the total surface area of ​​the HPPE filaments of the composite elongated body, preferably at least 90% of the total surface area of ​​the HPPE filaments of the composite elongated body.

[0259] 76. The composite elongated body according to any of the foregoing embodiments, wherein the length dimension (Ld) of the elongated body is much larger than the lateral dimensions (Td) of the width and thickness.

[0260] 77. The composite elongated body according to any of the foregoing embodiments, wherein the length dimension is at least 10 times larger than the width or thickness dimension of the composite elongated body, more preferably at least 20 times larger, even more preferably at least 50 times larger, and most preferably at least 500 times larger, whichever is greater.

[0261] 78. The composite elongated body according to any of the foregoing embodiments, wherein the composite elongated body has a cross-section having a rectangular shape, an elliptical shape, a circular shape, a hexagonal shape, or an octagonal shape.

[0262] 79. An elongated body comprising the composite elongated body according to any of the foregoing embodiments.

[0263] 80. The composite elongated body according to any of the foregoing embodiments, wherein the elongated body is selected from strands, cables, cords, ropes, belts, strips, hoses, and tubes.

[0264] 81. A rope comprising at least three composite elongated bodies according to any of the foregoing embodiments.

[0265] 82. A rope according to any of the foregoing embodiments, the rope exhibiting improved bending properties compared to a reference rope, preferably wherein the reference rope is a rope that does not contain the polymer composition as defined in any of the foregoing embodiments.

[0266] 83. A rope according to any of the foregoing embodiments, the rope exhibiting improved bending properties compared to a reference rope, wherein the reference rope is a rope comprising a thermoplastic ethylene copolymer as defined in any of the foregoing embodiments and lacking a lubricant as defined in any of the foregoing embodiments.

[0267] 84. A belt comprising at least three composite elongated bodies according to any of the foregoing embodiments.

[0268] 85. A belt according to any of the foregoing embodiments, the belt exhibiting improved bending properties compared to a reference belt, preferably wherein the reference belt is a belt without the polymer composition as defined in any of the foregoing embodiments.

[0269] 86. A belt according to any of the foregoing embodiments, the belt exhibiting improved bending properties compared to a reference belt, wherein the reference belt is a belt comprising a thermoplastic ethylene copolymer as defined in any of the foregoing embodiments and free of a lubricant as defined in any of the foregoing embodiments.

[0270] 87. An article comprising at least one elongated body according to any of the foregoing embodiments.

[0271] 88. An article comprising at least one composite elongated body according to any of the foregoing embodiments.

[0272] 89. The article according to any of the foregoing embodiments, wherein the article is a net, such as a fishing net or aquaculture net (typically used for fish farming); a sling; a synthetic link; a synthetic chain or rib.

[0273] 90. The article of manufacture according to any of the foregoing embodiments, wherein the article of manufacture is a personal protective item (e.g., a helmet or body panel) or a knitted glove comprising at least one composite elongated body as described herein.

[0274] 91. A lifting system or crane, the lifting system or crane comprising pulleys and an elongated body according to any of the foregoing embodiments.

[0275] 92. A lifting system or crane comprising a winch and an elongated body according to any of the foregoing embodiments.

[0276] 93. A lifting system or crane, the lifting system or crane comprising pulleys and a belt according to any of the foregoing embodiments.

[0277] 94. A lifting system or crane, the lifting system or crane comprising a winch and a belt according to any of the foregoing embodiments.

[0278] 95. A lifting system or crane comprising pulleys and ropes according to any of the foregoing embodiments.

[0279] 96. A lifting system or crane comprising a winch and a rope according to any of the foregoing embodiments.

[0280] 97. A method for manufacturing a composite elongated body, the method comprising the following steps:

[0281] a) providing a coating composition, wherein the composition comprises

[0282] i. Thermoplastic ethylene copolymers as defined in any of the foregoing embodiments; and

[0283] ii. A lubricant as defined in any of the foregoing embodiments;

[0284] b) Provide a yarn comprising at least two HPPE filaments as defined in any of the foregoing embodiments;

[0285] c) Applying the coating composition to the yarn to obtain a coated yarn; and

[0286] d) Exposing the coated yarn to an elevated temperature to obtain the composite elongated body;

[0287] The high molecular weight thermoplastic ethylene copolymer is a copolymer of ethylene, and the peak melting temperature of the thermoplastic ethylene copolymer is in the range of 40°C to 140°C.

[0288] 98. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein in step d), the coating composition is dried and the thermoplastic ethylene copolymer is melted.

[0289] 99. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the temperature in step d) is in the range from the melt temperature of the thermoplastic ethylene copolymer to 153°C, so as to at least partially melt the thermoplastic ethylene copolymer.

[0290] 100. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein after steps a), b), c) and d), the polymer composition is present throughout the composite elongated body.

[0291] 101. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein after steps a), b), c) and d), the thermoplastic ethylene copolymer and the lubricant are present throughout the composite elongated body.

[0292] 102. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the method includes the additional step of: e) forming the composite elongated body by conveying the composite elongated body at the end of the oven through a mold having a certain shape to obtain the composite elongated body having a cross-sectional shape corresponding to the shape of the mold.

[0293] 103. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the method includes a drying step prior to step d), and wherein the drying conditions in this step include a temperature of 40°C to 130°C, preferably 50°C to 120°C.

[0294] 104. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the temperature in step d) is at least 2°C higher than the peak melt temperature of the thermoplastic ethylene copolymer.

[0295] 105. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the temperature in step d) is at least 5°C higher than the peak melt temperature of the thermoplastic ethylene copolymer.

[0296] 106. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the temperature in step d) is at most 150°C.

[0297] 107. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the temperature in step d) is at least 5°C higher than the peak melt temperature of the thermoplastic ethylene copolymer, and at most 145°C.

[0298] 108. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the temperature in step d) is at least 10°C higher than the peak melt temperature of the thermoplastic ethylene copolymer, and at most 140°C.

[0299] 109. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein step d) is combined with the drying step.

[0300] 110. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein a temperature gradient is applied to the coated yarn in step d), thereby raising the temperature from about room temperature to the maximum temperature in this step.

[0301] 111. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein in step d), the yarn is held in an oven for 2 to 100 seconds, preferably 3 to 60 seconds, more preferably 4 to 30 seconds.

[0302] 112. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein in step d), the coated yarn undergoes a continuous process from drying the coating composition to at least partially melting the thermoplastic ethylene copolymer.

[0303] 113. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the HPPE filament is prepared by melt spinning or gel spinning.

[0304] 114. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the concentration of the thermoplastic ethylene copolymer in the coating composition is between 5% by mass and 50% by mass, wherein the weight percentage is the weight of the thermoplastic ethylene copolymer to the total weight of the coating composition, preferably the concentration of the thermoplastic ethylene copolymer in the coating composition is between 6% by mass and 40% by mass, wherein the weight percentage is the weight of the thermoplastic ethylene copolymer to the total weight of the coating composition.

[0305] 115. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the high-performance polyethylene (HPPE) filament has a toughness of at least 1.0 N / tex.

[0306] 116. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the HPPE filament has a toughness of 1.5 N / tex, preferably at least 1.8 N / tex, preferably at least 2.5 N / tex, and more preferably at least 3.5 N / tex.

[0307] 117. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the amount of the thermoplastic ethylene copolymer in the composite elongated body is from 1% to 25% by mass, wherein the weight percentage is the weight of the thermoplastic ethylene copolymer to the total weight of the composite elongated body.

[0308] 118. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the amount of the thermoplastic ethylene copolymer in the composite elongated body is 2% to 20% by mass, preferably 4% to 18% by mass, wherein the weight percentage is the weight of the thermoplastic ethylene copolymer to the total weight of the composite elongated body.

[0309] 119. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the density of the thermoplastic ethylene copolymer is 870 kg / m³. 3 Up to 930kg / m 3 Within the range.

[0310] 120. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the density of the thermoplastic ethylene copolymer is 875 kg / m³. 3 Up to 900kg / m 3 Within the range.

[0311] 121. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the heat of fusion of the thermoplastic ethylene copolymer is at least 5 J / g.

[0312] 122. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the peak melting temperature of the thermoplastic ethylene copolymer is in the range of 50°C to 130°C, preferably in the range of 60°C to 120°C.

[0313] 123. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the peak melting temperature is the melting temperature of the highest melting peak.

[0314] 124. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the heat of fusion of the thermoplastic ethylene copolymer is at least 10 J / g.

[0315] 125. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the heat of fusion of the thermoplastic ethylene copolymer is at least 15 J / g, preferably at least 20 J / g.

[0316] 126. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the heat of fusion of the thermoplastic ethylene copolymer is at most 280 J / g, preferably at most 200 J / g.

[0317] 127. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the coating composition is applied to the filament by spraying, dipping, brushing or transfer roller coating.

[0318] 128. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the coating composition is an aqueous composition containing at least 40% by mass of water.

[0319] 129. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the coating composition is an aqueous composition containing at least 50% by mass, preferably at least 60% by mass, of water.

[0320] 130. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the coating composition is an aqueous composition containing at least 70% by mass, preferably at least 80% by mass, and most preferably at least 90% by mass of water.

[0321] 131. A method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the coating composition is an aqueous composition as defined herein.

[0322] 132. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the coating composition is an aqueous suspension or an aqueous dispersion.

[0323] 133. The method for manufacturing a composite elongated body according to any of the foregoing embodiments, wherein the coating composition is a solvent-based composition, preferably comprising toluene, hexane, heptane, or a mixture thereof.

[0324] 134. A composite elongated body obtainable by means of the method according to any of the foregoing embodiments, the composite elongated body comprising HPPE filaments as defined in any of the foregoing embodiments, and a polymer composition as defined in any of the foregoing embodiments extending through the composite elongated body.

[0325] 135. A method for manufacturing an elongated body, the method comprising the step of assembling at least two composite elongated bodies according to any of the foregoing embodiments to form the elongated body.

[0326] 136. A method for manufacturing an elongated body according to any of the foregoing embodiments, wherein the elongated body is a strand, cable, cord, rope, belt, strip, hose or tube.

[0327] 137. A method of manufacturing an article of articles, the method comprising the steps of providing an elongated body according to any of the foregoing embodiments and generating the article of articles.

[0328] 138. A method of manufacturing an article, the method comprising the steps of providing a composite elongated body according to any of the foregoing embodiments and generating the article.

[0329] 139. A method of manufacturing an article according to any of the foregoing embodiments, wherein the article is a net, such as a fishing net or aquaculture net (typically used for fish farming); a circular sling; a synthetic link; a synthetic chain; or a rib.

[0330] 140. A method of manufacturing an article according to any of the foregoing embodiments, wherein the article is a personal protective item (e.g., a helmet or body panel) or gloves.

[0331] 141. A method for lifting and / or placing an object, the method comprising the following steps

[0332] a) Provide a rope according to any of the foregoing embodiments;

[0333] b) Connect the rope to the object to be lifted; and

[0334] c) Use the rope to lift and / or place the object.

[0335] 142. A method for lifting and / or placing an object, the method comprising the following steps

[0336] a) Provide a sling according to any of the foregoing embodiments;

[0337] b) Attach the sling to the object to be lifted; and

[0338] c) Use the slings to lift and / or place the object.

[0339] 143. A method for lifting and / or placing an object, the method comprising the following steps

[0340] a) Provide a chain according to any of the foregoing embodiments;

[0341] b) Connect the chain to the object to be lifted; and

[0342] c) Use the chain to lift and / or place the object.

[0343] 144. Use of the coating composition as defined in any of the foregoing embodiments for improving the bending properties of a rope or belt.

[0344] 145. The use of a coating composition as defined in any of the foregoing embodiments for improving the bending properties of a rope or belt, the improvement being compared to a rope or belt without such a polymer composition.

[0345] 146. The use of a coating composition as defined in any of the foregoing embodiments for improving wear on the guide wires of a rope or belt.

[0346] 147. Use of the coating composition as defined in any of the foregoing embodiments for improving the abrasion performance of ropes or belts.

[0347] 148. The use of a coating composition as defined in any of the foregoing embodiments for reducing wear on a rope or belt, the reduction being compared to a rope or belt without such a polymer composition. Attached Figure Description

[0348] Figure 1a A cross-section of a yarn (1) comprising high-performance polyethylene HPPE filaments (2) with a toughness of at least 0.6 N / tex is schematically depicted.

[0349] Figure 1b A yarn (1) comprising high-performance polyethylene HPPE filaments (2) with a toughness of at least 0.6 N / tex is schematically depicted, wherein the length dimension (Ld) of the yarn is much larger than the transverse dimensions (Td) of width and thickness.

[0350] Figure 1cA cross-section of a composite elongated body according to the invention is schematically depicted, the composite elongated body comprising high-performance polyethylene (HPPE) filaments (2) with a toughness of at least 0.6 N / tex, and a polymer composition (10) throughout the composite elongated body. The composite elongated body comprises the polymer composition, and more specifically, the polymer composition is present between the filaments of the composite elongated body.

[0351] The polymer composition is present throughout the cross-section of the composite elongated body and is in close contact with at least one filament (i.e., with an individual filament). In an even more preferred embodiment, the polymer composition impregnates the filament; in other words, the polymer composition is present throughout the cross-section of the composite elongated body. Accordingly, it should be understood that the polymer composition is present between substantially all the filaments of the composite elongated body. Preferably, at least 50% of the surface area of ​​the filaments of the composite elongated body is in contact with the polymer composition, more preferably at least 70% and most preferably 90% of the filament surface area is in contact with the polymer composition. One way to observe this is via a microscopic image of the cross-section of the composite elongated body and to see what percentage of the filament surface is in contact with the polymer composition.

[0352] Figure 2 schematically illustrates the cyclic bending on pulley (CBOS) test apparatus for a 5 mm rope. Details are given in the Method section below. Figure 2B depicts a schematic “perspective” of the interior of the schematic frame (24) in Figure 2A. F represents the direction of tension (MPa).

[0353] Figure 3 A schematic depiction of the cyclic bending on pulley (CBOS) test setup for a 21mm rope is shown. Details are given in the Method section below.

[0354] Figure 4 A schematic depiction of the cable guide wear testing apparatus is provided. Details are given in the method section below.

[0355] Figure 5 A cross-section of a composite elongated body (53) according to the invention is schematically depicted, the composite elongated body comprising high-performance polyethylene HPPE filaments (52) with a toughness of at least 0.6 N / tex, and a polymer composition (50) throughout the composite elongated body. In one embodiment, the composite elongated body may have a cross-section having a rectangular shape (54), an elliptical shape (52), a circular shape (55), a hexagonal shape (56), or an octagonal shape.

[0356] Figure 6An embodiment of the chain according to the invention is schematically depicted. The chain (60) comprises at least two interconnected links (61). The links comprise strips (62). The strips are typically narrow side strips comprising at least two composite elongated bodies (not shown in detail). In this embodiment, the material strips form multiple coils of the strip, the strip having a longitudinal axis, and each coil of the strip includes a twist along the longitudinal axis of the strip, the twist being an odd multiple of 180 degrees. Such links are described in published patent application WO2013186206, which is incorporated herein by reference. The term “coil” of the strip is understood herein as a loop, also called winding or coiling, i.e., the length of the strip begins in any plane perpendicular to the longitudinal axis of the strip and ends in the same plane in a loop, thereby defining the loop of the strip. The term “multiple coils” is also understood herein as “coiled into multiple overlapping layers.” The overlapping layers of the strip are preferably substantially superimposed on each other, but may also exhibit lateral offset. The windings can be in direct contact with each other, but they can also be separated. Separation between windings can be achieved, for example, by additional material strips, adhesive layers, or coatings. Preferably, a link in the chain according to the invention comprises at least two windings of material strips, preferably at least three windings, more preferably at least four windings, and most preferably at least eight windings. There is no particular limitation on the maximum number of windings. For practical reasons, 1000 windings can be considered an upper limit. Each winding of the material strip may include a twist of an odd multiple of 180 degrees along the longitudinal axis of the material strip; preferably, the odd multiple is 1. The odd multiple of 180 degrees will result in the link comprising a twist of an odd multiple of 180 degrees along the longitudinal axis of the link. The presence of the twist in each winding of the material strip results in a link having a single outer surface. Another feature of the construction may be that the side surfaces of the first end of the material strip are overlapped on either side by the winding material strips. It has been observed that the twist results in a construction in which the windings themselves lock to prevent relative displacement. Preferably, at least two windings of the material strip are connected to each other by at least one fastening device.

[0357] Figure 7 An embodiment of the chain according to the invention is schematically depicted. The chain (70) comprises at least two interconnected links (71). The links comprise at least two composite elongated bodies (not shown in detail).

[0358] Figure 8aAn example of a knotless warp-knitted mesh (Raschel knotless mesh) (80) is shown, comprising cords (81), each cord comprising a single composite elongated body (81), the cords forming mesh legs (indicated by ellipse 85) and joints. The joints are formed by a mixture of cords (as shown within ellipses 82 and 83: two mesh legs form a joint). The mesh size (length) is indicated by arrow (84). In another embodiment, the cords comprise at least two composite elongated bodies, typically two to three.

[0359] Figure 8b The diagram schematically illustrates that the mesh size (84) of the knotless mesh is measured as the length between two opposite joints of the stretched mesh.

[0360] Figure 9 A rope (90) according to the invention is schematically depicted, the rope comprising strands (91) twisted together, the strands comprising at least three composite elongated bodies (not shown in detail) according to the invention. The outer surface of the rope is indicated by 92.

[0361] Figure 10 A rope (100) according to the invention is schematically depicted, the rope comprising twelve braided strands (101) comprising a composite elongated body (not shown in detail) according to the invention. The outer surface of the rope is indicated by 102.

[0362] Figure 11 SEM images of the surface of the composite elongated body are shown.

[0363] Figure 12 Described in Tensile properties of HPPE filaments The following method.

[0364] Figure 13 illustrates the method for calculating the coefficient of friction.

[0365] method

[0366] ●Measure by weighing yarns or filaments of arbitrary lengths separately. Fineness The fineness of yarn or filament is calculated by dividing weight by length and is reported in tex (tex) or dtex (dtex), representing weight per 100,000 m or 10,000 m, respectively. The measured length of yarn or filament is typically 50 meters.

[0367] ● Heat of fusion and peak melting temperatureMeasurements were taken against the second heating profile at a heating rate of 10 K / min, according to standard DSC methods ASTM E 793-85 and ASTM E 794-06, respectively, under nitrogen atmosphere on dehydrated samples. This DSC measurement allows for the measurement of a portion of the entire composite elongated composition, including the HPPE filaments. The peaks from HPPE and the coating are well separated, allowing direct determination of the coating's Tm and heat of fusion.

[0368] ● Coating percentage The amount (coating percentage) of the polymer composition in the composite elongated body according to the present invention can be determined as follows.

[0369] Take 1.0 g of the composite elongated sample. Extract the polymer composition from the sample from the composite elongated sample via Weinthoseck extraction: reflux for 16 hours with toluene (150 ml) containing 5% acetic acid. After extraction, vacuum dry the remaining portion of the sample at 80 °C for 2.5 hours. By weighing the sample before and after the extraction process, the coating percentage can be calculated using the following formula:

[0370] Coating percentage = (1 - (M_after extraction / M_before extraction)) * 100%

[0371] Where M_after extraction_ is the mass of the sample after extraction and drying as described above, and M_before extraction_ is the mass of the sample before extraction and drying as described above.

[0372] ● density The density of the polymer composition was measured according to ISO 1183-04. The density of the thermoplastic ethylene copolymer was measured according to ISO 1183-04.

[0373] ● The impregnation method (A) and, more preferably, the density gradient column method (B) are suitable for this product. It is worth noting that ISO 1183-1:2004 covers all three methods, and a technician will be able to select the appropriate sample preparation technique and method depending on the sample to be tested.

[0374] A technician will know that if he / she is dealing with a finished product, he / she needs to obtain the polymer composition before performing a density measurement. Part of a technician's skill is to determine, based on the appearance of the finished product, how to obtain and prepare a sample of the polymer composition, and then select the appropriate method for measuring density based on the appearance of said sample. For example, the polymer composition can be scraped from the composite elongated body and measured. Depending on the appearance of the scraped product, any corresponding method listed in ISO 1183-2004 can be used.

[0375] It should be noted that the density of thermoplastic ethylene copolymers is usually provided by the supplier, who will provide this information, for example, in the product manual.

[0376] ●IV: Intrinsic Viscosity The concentration was determined according to method ASTM D1601 (2004) in naphthalene at 135°C by extrapolating the viscosity measured at different concentrations to zero concentration, with a dissolution time of 16 hours, wherein the amount of BHT (butylated hydroxytoluene) as an antioxidant was 2 g / L in the solution.

[0377] ● Tensile properties of HPPE filaments: Filament toughness and filament tensile modulus:

[0378] The linear density and mechanical properties of the filaments were determined using a semi-automatic microprocessor-controlled tensile testing machine (Favimat, testing machine number 37074, from Textechno Herbert Stein GmbH & Co. KG). The tensile testing was conducted in Germany. The tensile testing apparatus operates based on the principle of constant elongation (DIN 51 221, DIN 53 816, ISO 5079) and features an integrated measuring head for measuring linear density using constant tension, gauge length, and variable excitation frequency, based on vibration testing principles (ASTM D 1577). The Favimat testing apparatus is equipped with a 1200cN balance, serial number: 14408989. The Favimat software version is 3.2.0.

[0379] according to Figure 12 By using Favimat's Favimat clamps, clamp slippage during filament tensile testing is eliminated, thereby preventing filament breakage.

[0380] The upper clamp 121 is attached to a load sensor (not shown). During the tensile test, the lower clamp 122 moves in the downward direction (D) at a selected tensile test speed. The filament (125) to be tested is clamped at each of the two clamps by... Two fabric clamp surfaces 123 (4×4×2mm) were fabricated and wound three turns around a ceramic pin 124. Prior to tensile testing, the linear density of the filament length between the ceramic pins was determined vibroscopically. The filament linear density was determined over a 50mm filament gauge length (F) (see [reference]). Figure 12The stress-strain curve was tested at a pretension of 2.50 cN / tex (using the expected filament linear density calculated based on the yarn linear density and the number of filaments). Tensile tests were then performed at a lower clamp test speed of 25 mm / min and a pretension of 0.50 cN / tex, and the filament toughness was calculated from the measured breaking force and the filament linear density determined by vibration microscopy. The elongation strain was determined by using the entire filament length between the upper and lower acrylic fabric clamps at a defined pretension of 0.50 cN / tex. The starting point of the stress-strain curve typically shows a certain degree of relaxation, and therefore the modulus is calculated as the chordal modulus between two stress levels. For example, the chordal modulus between 10 cN / dtex and 15 cN / dtex is given by equation (1): in:

[0381] ε 10 = Elongation strain (%) under a stress of 10 cN / dtex; and

[0382] ε 15 = Elongation strain (%) under a stress of 15 cN / dtex.

[0383] The measured elongation at break is given by equation (2) and corrected for relaxation:

[0384]

[0385] in:

[0386] EAB = Corrected elongation at break (%)

[0387] EAB (measured value) = Measured elongation at break (%)

[0388] ε5 = Elongation strain (%) under a stress of 5 cN / dtex

[0389] CM(5:10) = chord modulus (N / tex) between 5 cN / dtex and 10 cN / dtex.

[0390] ●Tensive Properties of HPPE Yarn: The tensile strength (or toughness) and tensile modulus (or modulus) of the yarn are defined and measured on multifilament yarns as specified in ASTM D885M (1995) using a nominal yarn pitch length of 500 mm, a crosshead speed of 50% / min, and an Instron 2714 clamp of type "Fibre Grip D5618C". Based on the measured stress-strain curves, the modulus is determined as a gradient between 0.3% and 1% strain using a pretension of 0.2 cN / tex. To calculate the modulus and strength, the measured tensile force is divided by the fineness determined above; assuming the density of HPPE is 0.97 g / cm³.3 Calculate the value in GPa.

[0391] ●When thermoplastic ethylene copolymer breaks Tensile strength and tensile modulus It can be measured according to ISO 527-2.

[0392] ● Short chain branches per 1000 total carbons (SCB / 1000TC):

[0393] These were determined using NMR techniques and IR methods calibrated thereon. As an example, the amount of methyl, ethyl, or butyl short side chains, as determined by proton 1H liquid-NMR (hereinafter referred to as NMR), is the same as the amount of methyl side groups per thousand carbon atoms contained in UHMWPE:

[0394] Add 3-5 mg of UHMWPE to 800 mg of 1,1',2,2'-tetrachloroethane-d2 (TCE) solution containing 0.04 mg of 2,6-di-tert-butyl-p-cresol (DBPC) / g TCE. The purity of TCE is >99.5%, and the purity of DBPC is >99%.

[0395] - Place the UHMWPE solution into a standard 5 mm NMR tube, and then heat the NMR tube in an oven at a temperature between 140°C and 150°C while stirring until the UHMWPE dissolves.

[0396] Record NMR spectra at 130°C, for example using a high-field 400MHz NMR spectrometer with a 5mm reverse probe and the following settings: sample rotation rate between 10-15Hz, observed nucleus -1H, nucleus locked at -2H, pulse angle 90°, relaxation delay 30 seconds, scan number set to 1000, sweep width 20ppm, digital resolution of NMR spectrum less than 0.5, total number of points in the obtained spectrum 64k, and line broadening 0.3Hz.

[0397] - The recorded signal intensity (in arbitrary units) was calibrated by setting the peak value corresponding to TCE to 5.91 ppm against the chemical shift (ppm) (hereinafter referred to as Spectrum 1).

[0398] - After calibration, the amount of methyl side groups is determined by using two peaks of approximately equal intensity (doublets), which are highest in the ppm range between 0.8 ppm and 0.9 ppm. The first peak should be located at approximately 0.85 ppm, and the second peak should be located at approximately 0.86 ppm.

[0399] - Perform peak deconvolution using standard ACD software produced by ACD / Labs;

[0400] - The same software was used to calculate A1, which was used to determine the amount of methyl side groups.甲基侧基 The accurate determination of the area (hereinafter referred to as A1 of the unconvolved peak), i.e., A1 = A1 第一峰 +A1 第 Second Peak.

[0401] - The amount of methyl side groups per thousand carbon atoms is calculated as follows:

[0402]

[0403] - Where A2 is the area of ​​the three peaks of the methyl end group, which is the second highest in the ppm range between 0.8 and 0.9 and is located after the second peak of the methyl side group, toward the increasing ppm range, and where A3 is the area of ​​the peak given by the CH2 group of the UHMWPE main chain, which is the highest peak in the entire spectrum and is located in the ppm range between 1.2 and 1.4.

[0404] ● Yarn Minimum creep rate It can be determined as described in the published patent application WO2016001158. In particular, it is described in the section "Creep and Minimum Creep Rate in Stabilized Fibers" of WO2016001158. The minimum creep rate of the yarn has been derived from the creep measurement results applied to the multifilament yarn by applying the ASTM D885M (1995) standard method at a constant load of 900 MPa and a temperature of 30°C, and then measuring the creep response (i.e., strain elongation, %) as a function of time. The minimum creep rate is determined by the first derivative of creep as a function of time, where this first derivative has a minimum value (e.g., the creep rate of the yarn [1 / s] is plotted as a function of the strain elongation [%) of the yarn in a so-called known Shelby and Tang figure).

[0405] ● coefficient of frictionThe setup for measuring the coefficient of friction is schematically shown in Figure 13a. Figure 13b depicts a cross-section of one of the pulleys in Figure 13a, the cross-section being given along the XY region in Figure 13a. The coefficient of friction between a 5 mm diameter rope (131) and metal is measured by running the rope in the machine over two pulleys (132, 133) made of tool steel 1.2709 (roughness Ra 0.215 ± 0.002 (n = 3)), one of which (132) is blocked to prevent rotation (see Figure 13). Water at 23°C is passed through the blocked pulley (132), and the indoor relative humidity is 50%. The pulley diameter (D) of each pulley (132, 133) is 99 mm. The radius of the groove (136) of each pulley is 3 mm. Two pneumatic cylinders (134, only one shown) are used to apply force between two pulleys, both of which are connected to opposite sides of a freely rotating pulley (133). This loads the rope with 3750 Newtons, which then moves along the pulleys at a speed of 2750 mm / min via a slider (135) connected to the rope, which moves along the y-axis. The force required to move the rope is measured, and the coefficient of friction is calculated using Equation 1.

[0406]

[0407] Where μ is the coefficient of friction, F 编织 For the force during weaving (3750N), F 测量 The force required to move a rope at the desired speed on both stationary and moving pulleys.

[0408] Before measuring the coefficient of friction, the rope was loaded to 7750 N in a cylinder for 60 seconds by increasing pressure, and then the rope was unloaded by increasing and decreasing pressure in the cylinder to eliminate structural elongation. The coefficient of friction was then measured by moving the slider (135) down 350 mm and then up 350 mm. This was one cycle. Three cycles were performed for each rope. The coefficient of friction was calculated using the average force applied during the second cycle.

[0409] ● CBOS 5mm test (Test setup is illustrated in Figure 2): Each machine is 6-cycled bending with a rope diameter of 5 mm, D / d of 10, and a tension of 510 MPa (load: 30% of the minimum breaking load), in a humid environment (water cooling: spraying ambient temperature water at the bending area of ​​the top pulley (21) (Figure 2a - Item 25).

[0410] Test the cyclic bending on pulleys (CBOS) performance. In this test, the rope (20) is bent on three rolling pulleys (21, 22, 23), each with a diameter of 50 mm. The three pulleys are positioned in an inverted V-shape on the frame (24). The rope is placed on the pulleys such that the rope has a bending area at each pulley. The rope is placed under a specific load (30% MBL). The frame with pulleys is cyclically rotated back and forth (indicated by the left and right arrows (G)), during which the rope is exposed to cyclic bending on the pulleys until the rope reaches failure (=breakage). One machine cycle represents one back and forth rotation of the frame with pulleys. This means that one machine cycle represents 6 bends (3 bends each). Rope travel length (L, see Figure 2c The distance from the starting point (S) to the ending point (E) is 45cm. The cycle time is 5 seconds per machine cycle.

[0411] A machine cycle consists of a straight bend (90°) at point A, a reverse bend (180°) at point B, and then a straight bend (90°) at point C. The rope bends alternately in opposite directions, and a complete cycle has 4 (90°) straight bends and 2 (180°) reverse bends. A complete cycle is 2 stroke lengths.

[0412] ● 21mm-A Test of Cyclic Bending on Pulley (CBOS) (Testing equipment in) Figure 3 (Illustrated schematically): The rope diameter is 21 mm, and the D / d ratio is 20. CBOS test: The flexural fatigue of the rope is tested by bending the rope on a pulley. Figure 3 The diagram is schematically depicted. The test rope (30) is configured as a loop, meaning that both ends of the rope are connected using splice terminations. The circumference of the loop is approximately 6.5 m. The splice termination (also commonly referred to as a folded splice) has a fold of 9 on each side of the rope. Neither splice end is tapered. This loop is located above the large pulley (traction pulley (31)) at the top of the machine and the small curved pulley (32) at the bottom.

[0413] The rope is placed under load (tension of 280 MPa (18% of MBL)) and circulated back and forth above the pulley at a stroke speed of 210 m / min until the rope fails. Each machine cycle produces two straight-bend-straight bend cycles on the exposed rope section (double-bend zone). The double-bend zone is approximately 14 times the diameter of the rope. In a dry environment (without water cooling), the bend cycle time is 12 seconds per machine cycle (one cycle is one forward and one backward). The pause time between each cycle reversal is 1 second. The preload of the rope padding is 5 times 14.5 metric tons.

[0414] ● 21mm-B test of cyclic bending on pulley (CBOS) Same as the CBOS21mm-A above, but with a tension of 370MPa.

[0415] ● 10mm cable guide test: The rope diameter is 10mm, with 2 wear cycles per machine cycle and 36 seconds per machine cycle - C2 cable guide (DIN 81915) D / d is 20, tension is 380MPa (load: 25% MBL), in a dry environment (without water cooling).

[0416] Test the abrasion resistance of the cable guide. Figure 4 The diagram is schematically depicted. In this test, the rope (41) is moved above the guide (41) under a specific load (1800 kg). One machine cycle represents the rope being pulled back and forth across the surface once. The rope is made to cycle back and forth until failure. The cycle time for each machine cycle is 36 seconds. The rope travel length is 56 cm.

[0417] experiment

[0418] The following examples are given by way of non-limiting reference only.

[0419] Material

[0420] Paramelt TM Aquaseal X2050 (also referred to herein as X2050) is a water-based dispersion formulated from an unplasticized, high-molecular-weight thermoplastic ethylene copolymer, completely solvent-free. It has a solids content of 44%, a pH of 11, is a milky white liquid, and a viscosity (dynamic viscosity at 20°C) of 150 mPas. The melting point of this thermoplastic ethylene copolymer is 76.7°C, and its heat of fusion is 21.9 J / g. It was purchased from Paramelt Veendam BV, Veendam, The Netherlands.

[0421] Michemprime MP2960 is a water-based copolymer dispersion with a pH of 11-12 and a non-volatile content of 16.5-17.5%. It was purchased from Michelman SARL, Windhof, Luxembourg.

[0422] 2650 is a nonionic emulsion of palm wax in water. It contains 30% nonvolatile substances and has a pH of 4.5. Purchased from BYK Netherlands BV.

[0423] 2700 is an emulsion containing Fischer-Tropsch wax with a pH of 9.5. Purchased from BYKNetherlands BV.

[0424] NeoCryl A-668 is an anionic acrylic-styrene copolymer emulsion supplied in water in 45% solids form. Purchased from BYK Netherlands BV.

[0425] DSM R-2180 is an aliphatic self-crosslinking polyurethane dispersed in water at pH 7.3 with a solids content of 35%. It was purchased from DSM Coating Resins BV Waalwijk, Netherlands.

[0426] Preparation of coating compositions in Examples 1-6

[0427] The thermoplastic ethylene copolymer and the lubricant are mixed by adding the lubricant to the ethylene copolymer and stirring at room temperature for 15 minutes.

[0428] Preparation of comparative coating compositions of Comparative Example 1 and Comparative Example 2

[0429] A comparative coating composition was prepared by diluting the ethylene polymer with water in a 1:1 ratio.

[0430] Manufacturing of composite elongated bodies

[0431] HPPE yarn ( 1760SK78, with a yarn toughness of 34.5 cN / dtex, a filament toughness of 37 cN / dtex, and a modulus of 1190 cN / dtex, (from DSM Protective Materials BV, The Netherlands) was impregnated in a coating composition. The wetted yarn was first fed through a die, then passed seven times through a 6-meter-long hot air oven at an inlet speed of 50 m / min and an outlet speed of 50 m / min. The oven temperature was set to 110°C. The resulting dried monofilament products each contained approximately 15% by mass of the polymer composition and 85% by mass of the fiber material (filament).

[0432] Manufacturing of 5mm rope

[0433] 5mm ropes (with a diameter of 5mm) are manufactured using composite elongated body (CEB), each rope having 48 single yarns divided into 12 strands. The rope comprises 12 strands, (circularly) woven into 6 clockwise and 6 counterclockwise strands, each strand containing 20 turns of a twisting assembly with 4 monofilaments per meter, and a weaving pitch of 7 times the rope diameter.

[0434] Manufacturing of 10mm rope

[0435] A 10mm rope (10mm diameter) is manufactured using a composite elongation body. Each rope comprises 12 strands, (circularly) woven into 6 clockwise and 6 counterclockwise strands. Each strand contains 18 turns of a twisting assembly with 20 monofilaments per meter, and the weaving pitch is 7 times the rope diameter. This produces the ropes of Examples 1-6 and Comparative Examples 1-2.

[0436] Cable guide test

[0437] The ropes of embodiments 1-6 and comparative embodiments 1-2 were subjected to the cable guide 10mm test as described above.

[0438] Table 1 reports the test results of the cable guide.

[0439] Table 1

[0440]

[0441] The results showed that the presence of the lubricant along with the polyethylene copolymer matrix reduced the coefficient of friction. Furthermore, the presence of the lubricant along with the polyethylene copolymer matrix improved the wear resistance of the coated elongated body. Moreover, the MP2960 coating provided better wear resistance than the X2050 coating. The wear resistance of the rope was further improved when the proportion of solids in the lubricant in the coating was higher than that in the matrix.

Claims

1. A composite elongated body comprising a high-performance polyethylene (HPPE) filament having a toughness of at least 0.6 N / tex and a polymer composition present throughout the composite elongated body, wherein the polymer composition comprises: a) thermoplastic ethylene copolymers; and b) Lubricant; Furthermore, the thermoplastic ethylene copolymer is a copolymer of ethylene, and the peak melt temperature of the polymer composition, as measured according to ASTM E794-06, is in the range of 40°C to 140°C, and the ratio of the thermoplastic ethylene copolymer to the lubricant based on solids content is 1:1 to 1:

10.

2. The composite elongated body according to claim 1, wherein the ratio of the thermoplastic ethylene copolymer to the lubricant based on the solids content is from 1:1 to 1:

5.

3. The composite elongated body according to claim 1, wherein the high-performance polyethylene (HPPE) filament is provided as a yarn, the yarn comprising at least two HPPE filaments with a toughness of at least 0.6 N / tex.

4. The composite elongated body according to claim 1 or claim 3, wherein the lubricant is wax.

5. The composite elongated body according to claim 4, wherein the wax is a synthetic wax or a plant wax.

6. The composite elongated body according to claim 4, wherein the wax is polyethylene wax, polypropylene wax, beeswax, carnauba wax or Fischer-Tropsch wax.

7. The composite elongated body according to claim 1 or claim 3, wherein the lubricant is a polymer dispersion.

8. The composite elongated body according to claim 7, wherein the polymer dispersion is a dispersion of polyurethane or acrylic acid, or a dispersion of a mixture of polyurethane and acrylic acid.

9. The composite elongated body according to claim 1 or claim 3, wherein the lubricant comprises: Synthetic greases or synthetic oils; mineral greases or mineral oils; inorganic solids; ceramics; Or any combination thereof.

10. The composite elongated body according to claim 9, wherein the inorganic solid is graphite or molybdenum disulfide.

11. The composite elongated body according to claim 9, wherein the ceramic is a ceramic lubricant or a ceramic coating.

12. An elongated body comprising a composite elongated body as defined in any of the preceding claims.

13. The elongated body according to claim 12, wherein the elongated body is a strand, cable, cord, rope, belt, strip, hose or tube.

14. An article comprising at least one composite elongated body as claimed in any one of claims 1 to 11 and / or comprising at least one elongated body as claimed in claim 12 or 13, wherein the article is a synthetic chain, sling, tendon, net (80) or personal protective equipment.

15. A crane comprising pulleys and ropes, the ropes comprising at least three composite elongated bodies according to any one of claims 1-11.

16. A method for manufacturing a composite elongated body, the method comprising the following steps: a) providing a coating composition, wherein the coating composition comprises: Thermoplastic ethylene copolymer; and Lubricant; b) Provide a yarn comprising at least two HPPE filaments, wherein the filaments have a toughness of at least 0.6 N / tex; c) Applying the coating composition to the yarn to obtain coated yarn; and d) Increase the temperature of the coated yarn to obtain the composite elongated body; The high molecular weight thermoplastic ethylene copolymer is a copolymer of ethylene, and the peak melting temperature of the thermoplastic ethylene copolymer is in the range of 40°C to 140°C, and the ratio of the thermoplastic ethylene copolymer to the lubricant based on the solids content is 1:1 to 1:

10.

17. The method of claim 16, wherein the ratio of the thermoplastic ethylene copolymer to the lubricant based on the solids content is from 1:1 to 1:

5.

18. The method of claim 16, wherein in step d), the temperature is increased to dry the coating composition and to melt the thermoplastic ethylene copolymer.

19. A method for manufacturing an elongated body, the method comprising the step of assembling at least two composite elongated bodies according to any one of claims 1 to 11 to form the elongated body.

20. The method of manufacturing an elongated body according to claim 19, wherein the elongated body is a rope.

21. The method of manufacturing an elongated body according to claim 20, wherein the rope is a twisted or braided rope.

22. A method for manufacturing an article of articles, the method comprising the following steps: - Provide an elongated body according to claim 12 or claim 13 and / or provide a composite elongated body according to any one of claims 1-11, and - Manufacture the article.

23. The method of manufacturing an article according to claim 22, wherein the article is a net, a synthetic chain, personal protective equipment, or gloves.

24. A method for lifting and / or placing an object, the method comprising the following steps: a) To provide a rope comprising at least three composite elongated bodies according to any one of claims 1-11; b) Connect the rope to the object to be lifted; and c) Use the rope to lift and / or place the object.

25. Use of the polymer composition as defined in any one of claims 1-11 for reducing wear on a rope, synthetic chain, or belt, wherein the rope, synthetic chain, or belt comprises the polymer composition. in, The polymer composition comprises: c) Thermoplastic ethylene copolymers; and d) Lubricant; Furthermore, the thermoplastic ethylene copolymer is a copolymer of ethylene, and the peak melt temperature of the polymer composition, as measured according to ASTM E794-06, is in the range of 40°C to 140°C, and the ratio of the thermoplastic ethylene copolymer to the lubricant based on solids content is 1:1 to 1:10; and The rope, synthetic chain, or belt comprises high-performance polyethylene (HPPE) filaments with a toughness of at least 0.6 N / tex.

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