METHOD FOR PREPARING A HOMOGENEOUS MIXTURE OF POLYOLEFIN SOLIDS AND LIQUID ADDITIVE

Abstract

A method for preparing a homogeneous mixture of polyolefin solids and a liquid additive without melting the polyolefin solids during preparation. The method comprises applying acoustic energy at a frequency of 20 to 100 hertz to a heterogeneous mixture comprising the polyolefin solids and the liquid additive for a period of time sufficient to substantially intermix the polyolefin solids and the liquid additive, while maintaining the temperature of the heterogeneous mixture above the freezing point of at least one liquid additive and below the melting temperature of the polyolefin solids, thereby preparing the homogeneous mixture without melting the polyolefin solids.

Description

METHOD FOR PREPARING A HOMOGENEOUS MIXTURE OF POLYOLEFIN SOLIDS AND LIQUID ADDITIVE FIELD OF INVENTION Polyolefin blend with additives. BACKGROUND OF THE INVENTION Patent publications and patent applications in or about the field include US 7,188,993 B1; US ​​7,695,817 B2; US 8,124,309 B2; US 8,435,714 B2; US 8,680,177 B2; US 8,889,331 B2; US 9,223,236 B2; US 9,593,919 B2; US 9,926,427 B2; US 9,957,360 B2. Non-patent publications in or about the field include Assessment of extrusionsonication process on fire retardant polypropylene by rheological characterization, by G. Sanchez-Olivares, et al. AIMS Materials Science, 2016; vol. 3, no. 2, pages 620 to 633; and ENHANCED DISPERSION OF PARTICEE ADDITIVE INTO POLYMERS USING TWIN SCREW EXTRUSION WITH ULTRASOUND ASSISTANCE, by K. Tarverdi, et al., SPE ANTEC Anaheim 2017, pages 1058 to 1062. The above mixing methods are based on the mechanical mixing of solids (e.g., in a stirred tank device) or molten (e.g., in a twin-screw extruder device) polyolefins with liquid additives. SUMMARY OF THE INVENTION A method was discovered for preparing a homogeneous mixture of polyolefin solids and liquid additive without melting the qq i znn / zznz / E / YiAi Ref. 331880 polyolefin solids during preparation. The method comprises applying acoustic energy at a frequency of 20 to 100 hertz to a heterogeneous mixture comprising the polyolefin solids and the liquid additive for a period of time sufficient to substantially intermix the polyolefin solids and the liquid additive while maintaining the temperature of the heterogeneous mixture above the freezing point of at least one liquid additive and below the melting temperature of the polyolefin solids, thereby preparing the homogeneous mixture without melting the polyolefin solids. DETAILED DESCRIPTION OF THE INVENTION A method for preparing a homogeneous mixture of polyolefin solids and a liquid additive without melting the polyolefin solids during preparation. The method comprises applying acoustic energy at a frequency of 20 to 100 hertz (Hz) to a heterogeneous mixture comprising the polyolefin solids and the liquid additive for a period of time sufficient to substantially intermix (carefully or completely homogenize) the polyolefin solids and the liquid additive while maintaining the temperature of the heterogeneous mixture (and, optionally, maintaining the temperature of the homogeneous mixture prepared therefrom) above the freezing point of at least one liquid additive and below the melting temperature of the polyolefin solids, thereby preparing the homogeneous mixture without melting the polyolefin solids. The method may further comprise a feature of not solidifying the liquid additive.The method may further include the limitation where the heterogeneous mixture is not mechanically agitated (not mixed by mechanical means) during the acoustic energy application stage. Additional aspects of the invention follow; some are listed below for ease of reference. Aspect 1. A method for preparing a homogeneous mixture of polyolefin solids and a liquid additive without melting the polyolefin solids during preparation, wherein the method comprises applying acoustic energy at a frequency of 20 to 100 hertz (Hz) to a first heterogeneous mixture comprising at least one liquid additive and polyolefin solids for a period of time and at an effective acoustic intensity to substantially intermix the at least one liquid additive and the polyolefin solids while maintaining the temperature of the first heterogeneous mixture (and, optionally, maintaining the temperature of the homogeneous mixture prepared therefrom) above the freezing point of the at least one liquid additive and below the melting temperature of the polyolefin solids, thereby preparing a first homogeneous mixture comprising the polyolefin solids and the at least one liquid additive without melting the polyolefin solids.The method may comprise, without solidifying the at least one liquid additive. The method may further comprise the characteristic of not mechanically moving the polyolefin solids or heterogeneous mixture during the application step. Each of the at least one liquid additive independently has a freezing point less than 20.0 °C, alternatively less than 15 °C, or alternatively less than 5 °C. The freezing point of each of the at least one liquid additive independently may be at least -80 °C, alternatively at least -50 °C, or alternatively at least -10 °C. The polyolefin solids may have a melting temperature at which melting begins or initiates that is 60 °C or higher, alternatively greater than 100 °C, or alternatively greater than 110 °C.Polyolefin solids may have a melting temperature at which melting ends or is completed of at most 220 °C, alternatively at most 180 °C, alternatively at most 150 °C. Aspect 2. The method of aspect 1 wherein the application stage is characterized by any of the features (i) to (v): (i) the frequency is from 50 to 70 Hz, alternatively from 55 to 65 Hz, alternatively from 58 to 62 Hz, alternatively from 59 to 61 Hz; (ii) the time period is from 0.5 minutes to 4 hours, alternatively from 0.5 minutes to 2 hours, alternatively from 1 minute to 60 minutes; (iii) both (i) and (ii); (iv) maintaining the temperature of the first heterogeneous mixture below the melting temperature of the polyolefin solids comprises maintaining the temperature of the first heterogeneous mixture from 10° to 109°C, alternatively from 15° to 99°C, alternatively from 20.0° to 39.9°C, or alternatively from 20.0° to 29.9°C (e.g., 25°C ± 3°C); and (v) both (iv) and any of (i) to (iii). The frequency is set by the acoustic mixer.The intensity is sufficient to move materials with enough amplitude to be effective for mixing. Aspect 3. The method of aspect 1 or 2 wherein the polyolefin solids of the first heterogeneous mixture are characterized by a physical form (i.e., solid particle form) that is a powder, granules, or pellets and by a melting temperature that is 61° to 180°C, alternatively 90° to 180°C, alternatively 110° to 174°C, or alternatively 120° to 180°C; and the at least one liquid additive of the first heterogeneous mixture is characterized by a freezing point less than 20°C or by a melting point of 20° to 99°C; and the first heterogeneous mixture is maintained at a temperature higher than the freezing point or melting point of the at least one liquid additive and lower than 110°C during the application stage. The polyolefin solids of the first heterogeneous mixture can be characterized by an average particle size of 10 to 500 particles per gram (ppg), alternatively 11 to 80 ppg, alternatively 20 to 40 ppg, measured by counting. qq i znn / zznz / E / YiAi Aspect 4. The method of any of aspects 1 to 3 wherein the polyolefin of the polyolefin solids (i.e., particulate form of the polyolefin polymer) is: (A) a polyethylene homopolymer; an ethylene / alpha-olefin copolymer; a polyethylene copolymer with functionality (hydrolyzable silyl group) (HSG-FP Copolymer); an ethylene / unsaturated carboxylic ester copolymer (e.g., ethylene / vinyl acetate (EVA) copolymer or ethylene / alkyl (meth)acrylate (EAA or EAM) copolymer); or a mixture of any two or more of these. The polyolefin may be the polyethylene copolymer with functionality (hydrolyzable silyl group) (HSG-FP Copolymer). Aspect 5. The method of any of aspects 1 to 4, wherein the at least one liquid additive is any one or more of the additives (B)nqa (I)iiq: (B)iiqun liquid silanol condensation catalyst (dibutyltin dilaurate or ethanesulfonic acid); (C)nqun liquid antioxidant (e.g., 2-methyl-4,6-bis(octylthiomethyl)phenol, e.g., IRGASTAB Cable KV 10); (D)nqun liquid colorant (e.g., a liquid dye); (E)nqun liquid burn retardant; (F)nqun liquid stabilizer for stabilizing the homogeneous mixture against the effects of ultraviolet light (UV stabilizer), such as a liquid hindered amine light stabilizer (HALS); (G)nqun liquid processing aid (e.g., mineral oil); (H)nqun liquid flame retardant (e.g., a brominated polystyrene, a brominated rubber, a poly(vinyl bromide), a poly(vinylidene bromide), a brominated alkyl acrylate, a brominated alkyl acrylate),or a brominated butadiene-styrene copolymer); and (I) a liquid polymer other than (A) (e.g., a polydimethylsiloxane fluid). The liquid silanol condensation catalyst (B) can be dibutyltin dilaurate or a (C1-C4) alkanesulfonic acid. The liquid burn retardant (E) can be 2,4-diphenyl-4-methyl-l-pentene (also known as alpha-methylstyrene dimer or AMSD) or a hydrolyzable liquid silane (e.g., octyltriethoxysilane (OTES) or vinyltrimethoxysilane (VTMS)). The (E)nq can be a compound with the formula RSi(X)3, where R is (C1-C10) alkyl, (C2-C10) alkenyl, (C2-C10) alkynyl, or X, and each X is independently (C1-C10) alkoxy, (C1-C10) carboxyx, di((C1-C10)alkyl)amino, or (C1-C10) oxime. Alternatively or additionally, the at least one liquid additive can be a liquid organic peroxide (e.g., tere-butyl peroxyacetate), a liquid crosslinking co-agent (e.g.,trialyl isocyanurate) or a liquid moisture-generating agent (e.g., a hydroxyl-terminated polydimethylsiloxane). The homogeneous mixture of aspect 5 is moisture-curable and may comprise from 15.00 to 99.99 percent by weight (wt%) of Copolymer (A) HSG-FP, the remainder being a liquid additive, qq 1 znn / zznz / E / YiAi, all depending on the total weight of the homogeneous mixture. In aspect 5, the polyolefin of the polyolefin solids may be (A) a polyethylene copolymer with functionality (hydrolyzable silyl group) (HSG-FP Copolymer). Aspect 6. The method of any of aspects 1 to 5 wherein the first heterogeneous mixture further comprises at least one particulate solid additive that is different from polyolefin solids and the first homogeneous mixture further comprises at least one particulate solid additive.The at least one particulate solid additive may be any of the solid additives (B) to (I)3O1: (B)SO1 a solid silanol condensation catalyst (e.g., toluenesulfonic acid); (C)soi a solid antioxidant (e.g., 2,2'-thiobis(6-t-butyl-4-methylphenol) sold as LOWINOX TBP6); (D)soi a solid colorant (e.g., carbon black or TiO2); (E)Soi a solid burn retardant (e.g., a hydroquinone); (F) is a solid stabilizer for stabilizing the homogeneous mixture against the effects of ultraviolet light (UV stabilizer), such as a solid hindered amine light stabilizer (HALS) (e.g., poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazin-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidinyl)imino]]) sold as Chimassorb 944); (G) is a solid processing aid (e.g., solid N,N'-ethylene bis(stearamide) such as Kemamide W-40); (H) SO1 is a solid flame retardant (e.g., a metal hydrate); and (I) SO1 is a solid polymer other than (A) (e.g., a polypropylene homopolymer or a propylene / ethylene copolymer). Alternatively or additionally, the at least one particulate solid additive may be a solid organic peroxide (e.g., dicumyl peroxide), a solid crosslinking co-agent (e.g., trialyl isocyanurate), or a solid moisture-generating agent (e.g., alumina trihydrate (Al2O3.3H2O) or calcium oxalate monohydrate). Each of the at least one particulate solid additive may have a melting temperature at which melting begins or initiates that is greater than 20.0 °C, alternatively greater than 100 °C, or alternatively greater than 200 °C. The at least one particulate solid additive may have a melting temperature at which melting ends or is completed of at most 4000 °C, alternatively at most 2000 °C, alternatively at most 1000 °C.Aspect 7. The method of any of aspects 1 to 6 further comprising, prior to the application step, preparing the first heterogeneous mixture by means of the contact step (i) or (ii): (i) contacting the polyolefin solids with at least one liquid additive to prepare the first heterogeneous mixture; or (ii) contacting the polyolefin solids with a lower melting point solid additive having a melting point of 25° to 110°C (for example, trialyl cyanurate, melting point 26° to 28°C) to prepare a premix of heterogeneous solids, and melting the lower melting point solid additive without melting the polyolefin solids to prepare the first heterogeneous mixture. The lower melting point solid additive may have a melting point of 30.0° to 109°C, alternatively of 40.0° to 79.9°C, or alternatively of 30.0° to 49.9°C.The polyolefin solids used in the contact stage (i) may be free of at least one liquid additive. The first heterogeneous mixture used in the acoustic energy application stage may be freshly prepared. Freshly prepared means that the time between the contact stage (i) or (ii) and the start of the acoustic energy application stage may be short enough to prevent the at least one liquid additive from having sufficient time to soak or passively impregnate, if possible, into the polyolefin solids to any significant extent. The sufficiently short time between the contact stage and the start of the acoustic energy application stage may be less than 30 minutes, alternatively less than 15 minutes, alternatively less than 10 minutes, or alternatively less than 5 minutes.Alternatively, the first heterogeneous mixture used in the acoustic energy application stage may age prematurely. Premature aging means that the time between contact stage (i) or (ii) and the start of the acoustic energy application stage may be long enough to allow the at least one liquid additive sufficient time to passively soak or impregnate, if possible, some, but not all, of the at least one liquid additive into the polyolefin solids to a significant or measurable extent. The sufficiently long time between the contact stage and the start of the acoustic energy application stage may be at least 30 minutes, alternatively greater than 60 minutes, or alternatively greater than 120 minutes. Aspect 8. The method of any of aspects 1 to 7 further comprising a step of contacting the first homogeneous mixture with at least one particulate solid additive other than the polyolefin solids to prepare a second heterogeneous mixture comprising the first homogeneous mixture and the at least one particulate solid additive; and then applying acoustic energy at a frequency of 20 to 100 Hz and an effective acoustic intensity to substantially intermix them while maintaining the temperature of the second heterogeneous mixture above the freezing point of the at least one liquid additive and below the melting temperature of the polyolefin solids, thereby preparing a second homogeneous mixture comprising the polyolefin solids, the at least one liquid additive, and the at least one particulate solid additive, without melting the polyolefin polymer solids during the preparation steps.The method may include, without solidifying, at least one liquid additive. The at least one solid additive in particulate form may be as described elsewhere herein. Aspect 9. The method of any of aspects 1 to 8 further comprising a step of melting the polyolefin solids of the homogeneous mixture to prepare a molten mixture; shaping the molten mixture to obtain a shaped molten mixture; and cooling the shaped molten mixture to obtain a shaped solid. The shaped solid may be useful as a manufactured article. Shaping may comprise coating, extrusion, or molding. The homogeneous mixture may be the first or second homogeneous mixture prepared according to the numbered aspect. Aspect 10. The method of aspect 9 wherein the forming step comprises extruding the molten mixture as a coating onto a conductive core (e.g., a wire, optical fiber, or both) and allowing the coating to solidify to prepare a coated conductor comprising the conductive core and a solid shaped coating that at least partially covers the conductive core. The method may further comprise curing (crosslinking) the solid shaped coating to obtain a coated conductor comprising the conductive core and a cured, shaped coating product that at least partially covers the conductive core. This aspect can be used to prepare a manufactured article comprising a power cable such as a low-voltage power cable. Aspect 11. The method of aspect 9 or 10 further comprising curing the polyolefin of the shaped solid to obtain a shaped cured product. Aspect 12. The shaped cured product prepared by the method of aspect 11. The method prepares the homogeneous mixture in an acoustic mixing device, which is free of components that could interfere with or dampen the acoustic energy of the application stage. Acoustic mixing devices for various scales, from the laboratory bench to commercial manufacturing, are commercially available, including resonant acoustic mixers from Resodyn Acoustic Mixers, Butte, Montana, USA. The preparation method produces a homogeneous mixture without melting the polyolefin solids. In practical terms, homogeneity can be recognized by visual inspection or by taking samples of the mixture as it transitions from a heterogeneous to a homogeneous state, and by measuring a property of the sample. For example, homogeneity is achieved when the sampling error of the measurement is negligible or identical to the total measurement error. All other things being equal, (i) the higher the acoustic energy, the shorter the time required to achieve homogeneity, and vice versa; and (ii) the closer the frequency is to a resonance with the polymer solids, the shorter the time required to achieve homogeneity, and vice versa. The homogeneous mixture prepared by this method can be characterized as homogeneous because the liquid additive is substantially uniformly adsorbed as a film onto the outer surfaces, and any accessible inner surfaces, of the polyolefin solids. Substantially uniform adsorption means that virtually all accessible surfaces of the polyolefin polymer solids have at least some of the liquid additive adsorbed onto them, although the amounts of adsorbed liquid additive may vary between surfaces. Once adsorbed onto a surface of the polyolefin solids, the liquid additive may remain on the surface, or at least some of it may soak into, become embedded in, or migrate into the polyolefin solids to prepare soaked polyolefin solids that contain at least some of the liquid additive beneath their surfaces.In forms where part or all of the liquid additive has been soaked, embedded, or migrated into the polyolefin solids, the surfaces of the polyolefin solids may appear semi-dry or dry (without liquid additive), but the total weight of the polyolefin solids soaked in liquid additive will be equal to the weight of the heterogeneous mixture from which the homogeneous mixture was prepared. The method allows for the preparation of a homogeneous blend comprising polyolefin solids and at least one liquid additive without using melt extrusion or melt blending, which require melting the polyolefin solids. Therefore, the thermal history of the homogeneous blend prepared by this method is less damaging (e.g., less oxidative degradation and / or less premature burning or crosslinking) than the thermal history of a comparable homogeneous blend prepared by melt extrusion or melt blending. For example, the homogeneous blend prepared by this method may have improved curing properties (e.g., lower percentage of hot creep) and improved mechanical properties (e.g., higher tensile strength, greater elongation at break) before and / or after thermal aging. Liquid means an amorphous state of matter intermediate between a gas and a solid, and which has a stable volume, but not a defined shape. Melting means changing a material from a solid state to a liquid state. Typically, melting means the change is complete, so the liquid state contains no unmelted solid form of the material. The temperature at which a material is characterized as solid or liquid is 20 °C. Polyolefin means any macromolecule comprising constituent units derived from polymerizing a monomer with olefin functionality or from copolymerizing at least two monomers with olefin functionality, or a mixture of such macromolecules. Polyolefin may be amorphous (i.e., with a glass transition temperature but no melting point in differential scanning calorimetry (DSC)) or semicrystalline (i.e., with a glass transition temperature and a melting point in DSC). Examples of suitable polyolefins are ethylene-based polymers such as polyethylene homopolymers and ethylene-based copolymers; propylene-based polymers such as polypropylene homopolymers and propylene-based copolymers; halogenated polyolefins; grafted alkenyl-functionalized monocyclic organosiloxane-polyethylene copolymers; ethylene / alkenyl-functionalized monocyclic organosiloxane copolymers; and polystyrene polymers such as those provided in US 2012 / 0209056 Al.Examples of halogenated polyolefins are poly(vinyl chloride) polymers (PVC), chlorinated poly(vinyl chloride) polymers (CPVC), chlorinated polyethylene polymers, chlorinated natural or synthetic rubber, chlorinated polystyrene, poly(vinyl bromide) polymers, brominated butadiene / styrene copolymers; brominated polystyrene polymers, brominated natural or synthetic rubbers, and copolymers of vinyl chloride and an ethylenically unsaturated copolymerizable monomer.Examples of ethylenically unsaturated copolymerizable monomers include vinyl acetate, vinyl butyrate, vinyl benzoate, vinylidene chloride, an alkyl fumarate, an alkyl maleate, vinyl propionate, an alkyl acrylate, an alkyl methacrylate, methyl alpha-chloroacrylate, styrene, trichloroethylene, a vinyl ether, a vinyl ketone, 1-fluoro-2-chloroethylene, acrylonitrile, chloroacrylonitrile, allylidene diacetate, and chloroallydene diacetate, and mixtures of any two or more of these. See US 10,119,015 B2 for further details. Polyolefins may be thermoplastic elastomers or compatibilizers such as those provided in US 8,697,787 B2.A polyolefin that is a copolymer can be a bipolymer (prepared by the polymerization of two different olefin monomers), a terpolymer (prepared by the polymerization of three different olefin monomers), or a tetrapolymer (prepared by the polymerization of four different olefin monomers). A polyolefin that is a copolymer can be a block copolymer or a random copolymer. qq i znn / zznz / E / YiAi In some respects, polyolefin is an ethylene-based polymer. Examples of suitable ethylene-based polymers include polyethylene homopolymers, ethylene / alphaolefin (C4-C20) copolymers, ethylene / propylene copolymers, and ethylene / propylene / diene monomer (EPDM) copolymers such as ethylene / propylene / 1,3-butadiene terpolymers and ethylene / 1-butene / styrene copolymers. Examples of suitable ethylene / alphaolefin (C4-C20) copolymers include ethylene / l-butene copolymers, ethylene / l-hexene copolymers, and ethylene / 1-octene copolymers. Ethylene-based polymers can be ultra-low density polyethylene (ULDPE), very low density polyethylene (VLDPE), linear low density polyethylene (LLDPE), low density polyethylene (LDPE), medium density polyethylene (MDPE), high density polyethylene (HDPE), or ultra high density polyethylene (UHDPE).The Dow Chemical Company sells many ethylene-based polymers under trade names such as AFFINITY, ATTANE, DOWLEX, ENGAGE, FLEXOMER, and INFUSE. Other suppliers sell other ethylene-based polymers under trade names such as TAFMER, EXCEED, and EXACT. A monomer-based polymer such as an ethylene-based polymer or a propylene-based polymer means a macromolecule comprising 51 to 100 percent by weight (wt%) of constituent units derived from the monomer (for example, ethylene or propylene) and 0 to 49 wt% of constituent units derived from one or more comonomers that are different from the monomer. An olefin-functionalized monomer means an organic molecule that contains at least one polymerizable carbon-carbon double bond, wherein the organic molecule is composed of carbon atoms, hydrogen atoms, optionally at least one halogen atom and optionally at least one heteroatom selected from N, O, S, Si or P. Typically, the at least one heteroatom includes an oxygen atom and / or a silicon atom. Examples of monomers with olefin functionality are ethylene, propylene, an alpha-olefin (C4-C20), 1,3-butadiene, a norbornene, 5-ethylidene-2-norbornene, vinyl fluoride, vinyl chloride, vinyl bromide, vinyl iodide, vinyl acetate, an alkyl acrylate (Ci-Ce), an alkyl methacrylate (Ci-Ce), a vinyltrialkoxysilane such as vinyltrimethoxysilane with the formula H2C=C(H)Si(OCH3)3, or a monocyclic organosiloxane with alkenyl functionality such as 2,4,6-trimethyl-2,4,6-trivinylcyclotrisiloxane, (Dvi)3 (CAS no.3901-77-7) or 2,4,6,8-tetramethyl-2,4,6,8-tetravinylcyclotetrasiloxane, (Dvi) 4 (CAS No. 2554-06-5). Solid means a state of matter that has a stable volume and a definite shape. It can be amorphous, crystalline, or semicrystalline. Solidification means changing a material from a liquid state of matter to a solid state of matter. Typically, solidification means that the change is complete, such that the solid state of matter does not contain an unsolidified form of the material. Beyond theory, it is considered that applying acoustic energy at a frequency of 20 to 100 Hz generates sound waves that cause the polyolefin solids to oscillate rapidly. They undergo a relatively large physical displacement, the magnitude and speed of which are considered to be functions of the acoustic frequency and intensity. This oscillation of the polyolefin solids results in their rapid intermixing with at least one liquid additive to form the first homogeneous mixture. Therefore, the first homogeneous mixture is prepared without solidifying the at least one liquid additive and, optionally, without mechanically mixing the polyolefin solids and the at least one liquid additive, nor melting the polyolefin solids.The present method is different from previous mixing methods, which are based on the mechanical mixing of solids (e.g., in a stirred tank device) or melts (e.g., in a twin-screw extruder device) of polyolefins with liquid additives. Sound with a frequency below 20 hertz (Hz) is called infrasound; from 20 Hz to 20 kilohertz (kHz), acoustic; and above 20 kHz (up to 200 megahertz (MHz) or more), ultrasound. Beyond theory, it is generally accepted that infrasound, ultrasound, and acoustic sound above 100 Hz cannot, on their own, rapidly oscillate the polyolefin solids in the heterogeneous mixture in a way that would create the relatively large physical displacement of these solids and thus produce the homogeneous mixture. The application of acoustic energy at a frequency of 20 to 100 Hz is referred to herein as acoustic mixing. The method may further comprise a feature without mechanically moving the polyolefin solids or the heterogeneous mixture during the application stage. Mechanical movement means setting in motion by applying, either manually or by machine, a direct contact force where a physical object (e.g., a stirring paddle, screw, plunger, or blender) touches and thereby moves a material. Examples of mechanical movement include stirring, screw mixing, plunger mixing, blender mixing, and other direct physical contact. Contact force does not include electromagnetic force, gravity, acoustic force, or convective force. The method may further comprise a feature of substantially or completely without soaking (or embedding) the liquid additive into the polyolefin solids during the application stage. Soaking requires miscibility of the liquid additive qq i znn / zznz / E / YiAi in the polyolefin solids and effective soaking conditions. Such soaking conditions comprise a sufficient time period (e.g., 8 to 16 hours) and a sufficient temperature, ranging from ambient temperature (e.g., 20 °C) to a sufficiently elevated temperature (e.g., 60 to 90 °C) to permit migration of the liquid additive into the polyolefin solids. The expression "heterogeneous mixture" may refer to the first or second heterogeneous mixture of the numbered aspects or claims or to the heterogeneous mixture of unnumbered aspects, as the case may be. The heterogeneous mixture can be prepared by contacting pure polyolefin solids, free from the liquid additive, with the liquid additive without homogenizing them. Alternatively, it can be prepared by contacting a homogeneous mixture, prepared by acoustic mixing of the invention or comparative melting, with a second liquid additive and / or a particulate solid additive without homogenizing it. Alternatively, it can be prepared by dehomogenizing a homogeneous mixture of the polyolefin solids and liquid additive, such as by allowing the homogeneous mixture to stand at 25°C for a period of time sufficient to result in coalescence of some of the liquid additive into the polyolefin solids, or migration of the liquid additive to the surfaces of the polyolefin solids.Alternatively, it can be prepared by heating a heterogeneous mixture of the polyolefin solids and the lower melting point solid additive having a melting temperature lower than the melting temperature of the polyolefin solids, wherein the heating is at a temperature higher than the melting temperature of the lower melting point solid additive but lower than the melting temperature of the polyolefin solids and for a period of time sufficient to melt at least part, or alternatively all, of the lower melting point solid additive. The heterogeneous mixture may never have been homogenized before or may have been dehomogenized as described above. In either case, the heterogeneous mixture is a non-uniform physical combination of matter, for example, consisting of unmixed or partially (incompletely) mixed components. Homogenizing the dehomogenized mixture can reconstitute its original homogeneous mixture without remelting the polyolefin. Polyolefin solids. A form of matter in the solid state (i.e., solid particles) finely divided from polymeric macromolecules independently comprising at least 5, alternatively from 10 to 200,000 constituent units derived from polymerizing one or more monomers with olefin functionality. Examples of monomers with olefin functionality are ethylene, alpha-olefins, dienes, unsaturated carboxylic esters, and hydrolyzable silanes with olefin functionality. The polyolefin of polyolefin solids may be an ethylene-based polymer comprising 51 to 100 wt% of ethylene units derived from polymerizing ethylene and 49 to 0 wt% of comonomeric units derived from polymerizing one, alternatively two monomers with olefin functionality (comonomers) selected from propylene; an alpha-olefin (C4 — Cs) such as 1-butene, 1-hexene or 1-octene; an unsaturated carboxylic ester, and a hydrolyzable silane with olefin functionality.Alternatively, the polyolefin of the polyolefin solids may be a propylene-based polymer comprising 51 to 100 wt% of propylene units derived from polymerizing propylene and 49 to 0 wt% of comonomeric units derived from polymerizing one, or alternatively two, olefin-functionalized monomers (comonomers) selected from ethylene; an alpha-olefin (C4-Cs) such as 1-butene, 1-hexene, or 1-octene; an unsaturated carboxylic ester; and a hydrolyzable silane with olefin functionality. Examples of alpha-olefins are propylene; an alpha-olefin (C4-Cs) such as 1-butene, 1-hexene, or 1-octene; and an alpha-olefin (C10-C20). An example of a diene is 1,3-butadiene. Examples of unsaturated carboxylic esters are alkyl acrylates, alkyl methacrylates qq 1 znn / zznz / E / YiAi and vinyl carboxylates (e.g., vinyl acetate).Examples of hydrolyzable silanes with olefin functionality include vinyltrialkoxysilanes, vinyltris(dialkylamino)silanes, and vinyl(trioximo)silanes. Examples of polyolefin solids include polyethylene homopolymers, polypropylene homopolymers, ethylene / propylene copolymers, ethylene / alpha-olefin (C4-Cs) copolymers, ethylene / propylene / 1,3-butadiene copolymers, ethylene / unsaturated carboxylic ester copolymers, and hydrolyzable silane copolymers with ethylene / vinyl functionality. Polyolefin polymer solids can be porous or non-porous. Polyolefin polymer solids can comprise a powder, granules, or pellets. The liquid additive. A pure liquid or a solution of a liquid or solid additive (solute) dissolved in a liquid solvent. The pure liquid is composed of molecules that are not polyolefin polymer macromolecules and may have a temperature characteristic (i) or (ii): (i) a freezing point less than 0 °C, alternatively from 0 to 20.0 °C; or (ii) a melting point from 20.1 to 99 °C, alternatively from 30.0 to 79.9 °C, alternatively from 40.0 to 69.9 °C. The liquid additive solute in the solution may be the same compound as described for the pure liquid. The solid additive solute in the solution may be a compound having a solubility of at least 1% by weight in the liquid solvent. The liquid solvent can be an organic liquid chosen for having a boiling point above the temperature of the heterogeneous mixture during the application stage.Suitable liquid solvents include hydrocarbons (e.g., mineral oil or xylenes), ethers (e.g., dibutyl ether), and mixtures of two or more of these. In some cases, the liquid additive is added to the polyolefin solids as a pure liquid, and the heterogeneous mixture is free of any liquid solvent. The term "liquid additive" is used to describe the state of matter of the additive at the temperature of the heterogeneous mixture during the acoustic energy application stage, and does not necessarily require the additive to be a liquid at room temperature (e.g., 23 °C) if the temperature of the heterogeneous mixture during the application stage is higher than room temperature. In some respects, the liquid additive is a liquid at room temperature (e.g., 23 °C). The liquid additive may or may not impart at least one beneficial functional property to the homogeneous mixture and / or its polyolefin solids. For example, the liquid additive may simply be a filler material used only to reduce the cost of a product made from the homogeneous mixture compared to the cost of a product made from the polyolefin solids without the liquid additive, but without providing any functional benefit.Alternatively, the liquid additive can impart to the homogeneous mixture and / or the polyolefin solids therein at least one functional property such as color, increased stability (e.g., against degradation, embrittlement, slumping, or dielectric loss from exposure to heat, ultraviolet light, electricity, and / or water), a source of crosslinking (when the liquid additive is a crosslinking co-agent or a catalyst to enhance polyolefin crosslinking), increased conductivity (e.g., electrical and / or thermal conductivity), and a higher coefficient. Each heterogeneous mixture and each homogeneous mixture may independently contain only one liquid additive, or alternatively a combination of two or more different liquid additives. The heterogeneous mixture, and therefore the homogeneous mixture prepared from it using the method, may be free of (i.e., lack) the particulate solid additive. In these embodiments, the heterogeneous mixture, and therefore the homogeneous mixture prepared from it using the method, may consist essentially of the polyolefin solids and at least one liquid additive, or alternatively consist of these. Alternatively, the heterogeneous mixture, and therefore the homogeneous mixture prepared from it by the qq i znn / zznz / E / YiAi method, may further comprise the particulate solid additive that is different from the polyolefin solids. In these embodiments, the heterogeneous mixture and the homogeneous mixture prepared from it by the method may consist essentially of the polyolefin solids, at least one of such a liquid additive, and at least one of such a particulate solid additive, or alternatively consist of these. Optional particulate solid additive. A substance that is not or does not contain a polyolefin polymer; that is, it is not any type of polymer or is a polymer where the constituent units are not derived from a monomer with olefin functionality. The particulate solid additive may be characterized by a glass transition temperature, if any, and / or a melting temperature higher than the melting temperature of polyolefin solids, for example, a melting temperature higher than 140 °C, or alternatively, higher than 180 °C. The actual glass transition temperature, if any, and the melting temperature of the particulate solid additive are not important as long as they are sufficiently high so that the particulate solid additive does not undergo the glass transition or melt during the application stage.The heterogeneous mixture and the homogeneous mixture may comprise zero particulate solid additive, alternatively one particulate solid additive, or alternatively a combination of two or more different particulate solid additives. The particulate solid additive may be inorganic or organic. Examples include carbon black, carbon nanotubes, diamond powder, graphite, graphene, powdered metals, powdered metal oxides, solid flame retardants, silica, alumina, and silicate glass beads. In some respects, the heterogeneous mixture, the method of preparation, and the homogeneous mixture prepared in this way are free of a particulate solid additive. The polyolefin of the polyolefin solids may be (A) HSG-FP Copolymer. (A) HSG-FP Copolymer is prepared by copolymerizing monomers comprising ethylene and, optionally, one or more comonomers with olefin functionality, wherein at least one comonomer with olefin functionality is the hydrolyzable silane with olefin functionality. The composition of (A) HSG-FP Copolymer may be characterized by constituent units selected from ethylene units, alkylene hydrolyzable silyl group units, optionally propylene units, and optionally comonomeric units derived from the optional olefin comonomer. Optionally, 0, 1, or more olefinic comonomers may be selected from an alpha-olefin (C4-C20), an olefinically unsaturated carboxylic acid, an olefinically unsaturated carboxylic ester, an olefinically unsaturated carboxylic anhydride, and combinations thereof. The carboxylic acid may be monocarboxylic or dicarboxylic.The carboxylic ester can be a monocarboxylic ester, a monoester of a dicarboxylic acid, or a dicarboxylic diester. The olefinic unsaturated carboxylic acid can be a terminal (C2-Cg) unsaturated carboxylic acid, alternatively a (meth)acrylic acid, or alternatively an unsaturated dicarboxylic acid. The olefinic unsaturated carboxylic ester can be a vinyl carboxylate (C2-Cs) ester, alternatively a vinyl carboxylate (C2-C5) ester (e.g., vinyl acetate, vinyl propionate, or vinyl butanoate), alternatively an alkyl (Ci-Cg) (meth) acrylate ester, alternatively a C1-C3 (meth) acrylate ester, alternatively a dialkyl (Ci-Cs) diester of an unsaturated dicarboxylic acid, alternatively a monoalkyl (Ci-Cs) ester of an unsaturated dicarboxylic acid, or alternatively a monoalkyl (Ci-Cg) ester of maleic acid. (Meth) acrylate means H2C=CHCO2- or H2C=C(CH3)CO2-.The CTA may be acetone, methyl ethyl ketone, propionaldehyde, 2-propanol, ethyl acetate, isobutene, butane, 2-methylpropane, ISOPARTM-C, ISOPARTM-E, ISOPARTM-H, or a combination of any two or more of these. When present, the CTA may be from 0.03 to 10% by weight of the polymerization reaction mixture. The (A) HSG-FP copolymer can be characterized by a total hydrolyzable silyl group content of 0.43 to 0.99 mol%. The total mol% hydrolyzable silyl group content is calculated from the weight percent hydrolyzable silyl group content values, where the weight percent values ​​are determined according to the X-ray fluorescence (XRF) test method described below. For example, when the at least one hydrolyzable silane with alkenyl functionality is vinyltrimethoxysilane (VTMS), its molecular weight is 148.23 g / mol, and with a comonomeric content of 2.0 wt percent, the mol% is 0.38 mol percent. When the comonomeric content of VTMS is 5.0% by weight, the mol% = 0.99% by mol.The hydrolyzable silyl group content in mol% with any given value of hydrolyzable silyl group content in wt% will vary inversely with the molecular weight of the at least one hydrolyzable silane with alkenyl functionality from which the hydrolyzable silyl groups are derived. The (A) HSG-FP Copolymer contains hydrolyzable silyl groups. These groups can independently be a monovalent group with the formula (R2)m(R3)3-mSi-, wherein the subscript m is an integer between 1, 2, or 3; each R2 is independently H, HO-, alkoxy(Ci-Cs), carboxy(C2-C6), phenoxy, phenoxyalkyl(Ci-Cg), alkyl(Ci-Ce)(H)N-, (alkyl(Ci-Ce))2N-, alkyl(Ci-Ce)(H)C=NO-, or (alkyl(CiC6))2C=NO-; and each R3 is independently phenyl or alkyl(Ci-Cs). Each R2 may not have H and HO-, alternatively it may not have phenoxy and phenoxyalkyl (Ci-Ce) . Each R2 may independently be alkoxy (Ci-Ce) , carboxy (C2-Ce) , (alkyl (CiC6))2N-, alkyl (Ci-C6) (H) C=NO- or (alkyl (Ci-C6) )2C=NO- ; alternatively alkoxy (Ci-Cs) ; alternatively carboxy (C2Ce); alternatively (alkyl(Ci-Cs) )2N-; alternatively alkyl (Ci-Ce) (H)C=NO-; alternatively (alkyl (Ci-Cs) ) 2C=NO.All hydrolyzable silyl groups of the (A) HSGFP Copolymer may be the same. The hydrolyzable silyl groups are derived from the hydrolyzable silyl groups of at least one (comonomer of) hydrolyzable silane with alguenyl functionality from which comonomeric units of the (A) HSG-FP Copolymer containing such groups are prepared. Optional additive (B) silanol condensation catalyst. (B) may be selected from any of (i) to (iv): (i) a Bronsted acid; (ii) a Bronsted base; (ii) a Lewis acid; and (iv) a Lewis base. (B) can be (i) or (iii); alternatively (ii) or (iv). (B) can be the Lewis acid, which can be a dialkyltin dicarboxylate. (B) can be the Brønsted acid, which can be a sulfonic acid with the formula RSO3H where R is (C1-C10) alkyl, (Ce-Cio) aryl, an (Ce-Cio) aryl with (C1-C10) alkyl substituents, or an (C1-C10) alkyl with (Ce-Cio) aryl substituents; or a blocked sulfonic acid, which produces the sulfonic acid in situ. Optional additive (C) antioxidant: an organic molecule that inhibits oxidation or a group of such molecules. The (C) antioxidant differs in composition from the (F) stabilizer, meaning that when the heterogeneous or homogeneous mixture contains both (C) and (F), the compound used as (C) is different from that used as (F). The (C) antioxidant functions to provide antioxidant properties to the heterogeneous or homogeneous mixture and / or to a cured polymer product prepared by curing the homogeneous mixture. Examples of suitable (C) are bis(4-(1-methyl-1-phenylethyl)phenyl)amine (e.g., NAUGARD 445); 2,2'-methylene-bis(4-methyl-6-t-butylphenol) (e.g., VANOX MBPC); 2,2'-thiobis(2-t-butyl-5-methylphenol (CAS no. 90-66-4; 4,4' thiobis(2-t-butyl-5-methylphenol) (also known as 4,4' thiobis(6-tert-butyl-m-cresol), CAS no. 96-69-5, known in the market as LOWINOX TBM-6); 2,2'-thiobis(6-t-butyl-4methylphenol (CAS no.90-66-4, known in the market as LOWINOX TBP-6); trds[(4-tert-butyl-3-hydroxy-2,6-dimethylphenyl)methyl]-1,3,5-triazin-2,4,6-trione (for example, CYANOX 1790); tetrakis(3-(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)pentaerythritol propionate (e.g., IRGANOX 1010, CAS No. 6683-19-8); 2,2'-thiodiethandiyl ester of 3,5-bis(1,1-dimethylethyl)-4-hydroxybenzenepropanoic acid (e.g., IRGANOX 1035, CAS No. 41484-35-9); distearyl thiodipropionate (DSTDP); dilauryl thiodipropionate (e.g., IRGANOX PS 800); 3qq i znn / zznz / E / YiAi (3,5-di-t-butyl-4-hydroxyphenyl)stearyl propionate (e.g., IRGANOX 1076); 2,4-bis(dodecylthiomethyl)-6-methylphenol (IRGANOX 1726); 4,6-bis(octylthiomethyl)-o-cresol (for example, IRGANOX 1520); and 2',3-bis[[3-[3,5-di-tert-butyl-4-hydroxyphenyl]propionyl]]propionohydrazide (IRGANOX 1024).The (C) can be 4,4'-thiobis(2-t-butyl-5-methylphenol) (also known as 4,4'-thiobis(6-tert-butyl-m-cresol); 2,2'thiobis(6-t-butyl-4-methylphenol; tris[(4-tert-butyl-3-hydroxy2,6-dimethylphenyl)methyl]-1,3,5-triazin-2,4,6-trione;. distearyl thiodipropionate; or dilauryl thiodipropionate; or a combination of any two or more of these. The combination may be tris[(4-tert-butyl-3-hydroxy-2,6-dimethylphenyl)methyl]-1,3,5-triazin-2,4,6-trione and distearyl thiodipropionate. The heterogeneous and / or homogeneous mixture may be free of (C). When present, the antioxidant (C) may be from 0.01 to 1.5% by weight, or alternatively from 0.1 to 1.0% by weight of the total weight of the heterogeneous and / or homogeneous mixture. Optional additive (D) a colorant. For example, a pigment or dye. For example, carbon black or titanium dioxide. Carbon black may be supplied as a carbon black stock blend that is a copolymer formulation of poly(1-butene-co-ethylene) (from >95 wt% to <100 wt% of the total weight of the stock blend) and carbon black (from >0 wt% to <5 wt% of the total weight of the stock blend). Carbon black is a finely divided form of paracrystalline carbon that has a high surface area to volume ratio, although lower than that of activated carbon. Examples of carbon black are furnace carbon black, acetylene carbon black, and conductive carbons (for example, carbon fibers, carbon nanotubes, graphene, graphite, and expanded graphite platelets). The heterogeneous and / or homogeneous blend may be free of (D). When present, (D) may be 0.1 to 35% by weight, alternatively from 1 to 10% by weight of the heterogeneous and / or homogeneous mixture. Optional additive (E) burn retarder. The burn retarder (E) inhibits premature moisture curing of moisture-curable forms of the heterogeneous and / or homogeneous mixture, where premature moisture curing would result from premature or prolonged exposure of the mixture to ambient air or when the mixture is at ambient or elevated temperatures (e.g., during subsequent melt extrusion). Examples of (E) include octyltriethoxysilane, octyltrimethoxysilane, and vinyltrimethoxysilane. The heterogeneous and / or homogeneous mixture may be free of (E). When present, (E) may be from 0.001 to 5.0% by weight, alternatively from 0.01 to 3.0% by weight, alternatively from 0.10 to 1.5% by weight, alternatively from 0.15 to 1.0% by weight of the heterogeneous and / or homogeneous mixture.Optional additive (F) is a stabilizer to stabilize the heterogeneous and / or homogeneous mixture against ultraviolet light (UV stabilizer). The (F) stabilizer differs in composition from the (C) antioxidant, meaning that when the mixture contains both (C) and (F), the compound used as (C) is different from the one used as (F). Examples include a hindered amine light stabilizer (HALS), a benzophenone, or a benzotriazole. The (F) UV stabilizer may be a molecule containing a basic nitrogen atom bonded to at least one spherically hindered organogroup and acting as an inhibitor of degradation or decomposition, or a group of such molecules. The HALS is a compound that has a spherically hindered amino functional group and inhibits oxidative degradation; it may also extend the shelf life of mixture formulations containing organic peroxide.Examples of suitable (F) are butanedioic acid dimethyl ester, polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinylethanol (CAS No. 65447-77-0, known in the market as LOWILITE 62); and N,N'-bisformyl-N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl)-hexamethylenediamine (CAS No. 12417253-8, known in the market as Uvinul 4050 H). The heterogeneous and / or homogeneous mixture may be free of (F). When present, the (F) UV stabilizer can be from 0.001 to 1.5% by weight, alternatively from 0.002 to 1.0% by weight, or alternatively from 0.05 to 0.1% by weight of the heterogeneous and / or homogeneous mixture. Optional processing aid (G): A molecule that decreases the sticking of polymer melts to manufacturing equipment such as extruders and dies and reduces melt fracture of materials in applications where the homogeneous blend is subsequently used. (G) may be fluoropolymers, polyorganosiloxanes, metal salts of fatty carboxylic acids, fatty carboxamides, waxes, ethylene oxide (co)polymers, and nonionic surfactants. The heterogeneous and / or homogeneous blend may be free of (G). When present, the processing aid (G) may be from 0.05 to 5% by weight of the heterogeneous and / or homogeneous blend. Optional flame retardant additive (H). The flame retardant (H) is a compound that inhibits or delays the spread of fire by suppressing chemical reactions in a flame. The flame retardant (H) may be (H1) a mineral, (H2) an organohalogen compound, (H3) an organophosphorus compound, (H4) a halogenated silicone, (H5) a combination of any two or more of (H1) to (H4), or (H6) a combination of any of (H1) to (H4) and a synergistic flame retardant agent (e.g., antimony trioxide). The heterogeneous and / or homogeneous mixture may be free of (H). When qq i znn / zznz / E / YiAi is present, the (H) flame retardant can be from 0.1 to 80.0% by weight, alternatively from 1 to 50.0% by weight; and alternatively from 5 to 30.0% by weight of the heterogeneous and / or homogeneous mixture. The heterogeneous and / or homogeneous mixture may further comprise the (I) polymer that is not (A) or a styrenic polymer (that is not (A)). The (I) polymer that is not (A) may be a polyolefin-based macromolecule of a different composition than the (A) polymer. The (I) polymer that is not (A) may be a polyolefin, a styrenic polymer, a rubber, a polyvinyl chloride polymer, a polyorganesiloxane such as polydimethylsiloxane (PDMS), or a mixture of any two or more of these. The manufactured article. The manufactured article prepared from the homogeneous mixture may comprise a shaped form thereof. Examples include a coating on a substrate, a tape, a film, a laminate layer, a foam, and a pipe. The coated conductor. The manufactured article may be the coated conductor, comprising a conductive core and a polymer layer at least partially surrounding the conductive core, wherein at least a portion of the polymer layer comprises the homogeneous mixture, or a cured polymer product thereof. The entire polymer layer may comprise the cured polymer product. The conductive core may be linear (e.g., like a wire) with a length and proximal and distal ends separated from each other by the length of the linear form; and the polymer layer may surround the conductive core except for the proximal and distal ends. The coated conductor may further comprise one or more additional polymer layers, which may or may not independently comprise the cured polymer product; and / or an outer protective layer (e.g., a metal sheath or cover).The coated conductor may comprise one or two insulating layers, at least one of which comprises the cured polymer product; alternatively or additionally one or two semiconducting layers, at least one of which comprises the cured polymer product containing carbon black; alternatively or additionally an outer protective layer, comprising the cured polymer product. The moisture-curable forms of the homogeneous mixture comprising (A) HSG-FP copolymer can be moisture-cured by exposure to ambient air or by immersion in hot water at 70 to 95 °C to prepare a cured polymer product. The degree of crosslinking of the cured polymer product can be characterized by measuring the percentage of hot flow. Substitution: any, all but one, or each functional group may be non-substituted. qq i znn / zznz / E / YiAi Alternatively, it precedes a different modality. It can offer a choice; it is not an imperative. Optionally: it is absent (or excluded); alternatively, it is present (or included). EXAMPLES Melting index (I2): measured in accordance with ASTM D1238-13, using conditions of 190 °C / 2.16 kg, formerly known as condition E. Units of grams per 10 minutes (g / 10 min). XRF spectroscopy is used to determine the weight percent (wt%) silicon (Si) atom content of test samples of (A) HSG-FP Copolymer, and then the wt percent of the hydrolyzable silane comonomeric unit in these samples is calculated. Using a Buehler SimpliMet 300 automatic mounting press preheated for 3 minutes to 115.6 °C (240 °F)), a powdered form of the test sample is pressed for 1 minute at 8.3 megapascals (MPa; 1200 pounds per square inch (psi)) to form a plate approximately 6 mm thick, and the plate is cooled to 25 °C. The Si atom content of the plate is analyzed by wavelength-dispersive XRF using a PANalytical Axios wavelength-dispersive X-ray fluorescence spectrometer.The Si atom content is determined by comparing its line intensity in the XRF spectrum with a calibration curve for Si atom content established using polymer standards of known Si atom concentrations as independently measured by neutron activation analysis (NAA) or inductively coupled plasma (ICP) methods. The weight percent of Si atoms measured by XRF, and the molecular weight(s) of at least one hydrolyzable silane comonomer with alkenyl functionality from which the hydrolyzable silyl groups were derived, are used to calculate the weight percent of the comonomeric unit with a hydrolyzable silyl group (i.e., the weight percent of the hydrolyzable silyl groups) in the (A) HSG-FP Copolymer. For the hydrolyzable silyl groups derived from vinyltrimethoxysilane (VTMS), the molecular weight of VTMS is 148.23 g / mol.To calculate the hydrolyzable silyl group content (wt% of comonomeric units with hydrolyzable silyl group) in the (A) HSG-FP Copolymer, the wt% of the Si atom obtained by XRF (C) is used and the following formula: p = C * (m / 28.086)(1 / 10,000 ppmw), where * means multiplication, / means division, p is wt% of hydrolyzable silyl groups in (A), C is the amount of Si atoms (XRF) in parts per million by weight (ppmw), m is the molecular weight in g / mol of the at least one hydrolyzable silane comonomer with alkenyl functionality from which the hydrolyzable silyl groups are derived, 28.086 is the atomic weight of a silicon atom and 10,000 ppmw is the number of parts per million by weight in 1.00 wt%. For example, qq i znn / zznz / E / YiAi when XRF shows 37 9 ppmw of Si atom in (A) HSG-FP Copolymer and the comonomer used to prepare (A) is VTMS with a molecular weight of 148.23 g / mol, the % by weight of comonomeric content is 0.20 wt%. To calculate the mole percent of comonomeric units with hydrolyzable silyl group in the (A) HSG-FP Copolymer of the at least one hydrolyzable silane comonomer with alkenyl functionality used, the calculated wt percent of comonomeric units with hydrolyzable silyl group in (A) is used and the following equation: G = 100 * (w / m) / [ (w / m) + (100.00 wt percent - w) / 28.05 g / mol], where * means multiplication, G is the mole percent (mol percent) of hydrolyzable silyl groups in (A); p is the wt% of hydrolyzable silyl groups in (A), m is the molecular weight in g / mol of at least one hydrolyzable silane comonomer with alkenyl functionality from which the hydrolyzable silyl groups are derived, and 28.05 g / mol is the molecular weight of ethylene monomer (H2C=CH2). For example, when the comonomeric content is 2.0 wt% and the comonomer is VTMS, p = 2.0 wt% and m = 148.23 g / mol, and G = 0.38 mol%. When the comonomeric content is 5.0 wt% and the comonomer is VTMS, p = 5.0 wt% ym = 148.23 g / mol, and G = 0.99 mol%. When two or more hydrolyzable silane comonomers with alkenyl functionality having different molecular weights are used to prepare (A), the molecular weight qq i znn / zznz / E / YiAi used in calculating the total mol% of all hydrolyzable silyl groups in (A) is a weighted average molecular weight of the comonomers.The weighting can be determined by the ratio of the quantities of the comonomers supplied to the GPP reactor; alternatively by NMR spectroscopy of the (A) HSG-FP Copolymer to determine the relative quantities of the different comonomeric units in the (A) HSG-FP Copolymer when the respective hydrolyzable silyl groups are bonded to different types of carbon atoms (e.g., tertiary versus secondary carbon atoms); alternatively by Fourier transform infrared (FT-IR) spectroscopy calibrated to provide the quantification of the different types of comonomers. Tape Preparation Method: This method is used to prepare moisture-curable polyethylene tape formulations for hot creep and ambient cure test evaluations. The formulations prepared according to the above method are placed in a 1.905 cm (3 / 4 in) Brabender extruder equipped with a 25:1 mix-zone twin screw (pineapple), a 40 / 60 / 40 mesh filter pack, and a 5.08 cm (2 in) wide die head. The extruder has a four-zone temperature profile of 150 °C, 160 °C, 170 °C, and 170 °C at the die head and a screw speed of 60 revolutions per minute (rpm). This produces different formulations in the form of tape qq i znn / zznz / E / YiAi with an average thickness of 1.37 to 1.70 mm (54 to 67 thousandths of an inch). Ambient Humidity Curing Method. For characterization and comparison, the ambient curing conditions were controlled as follows. Cure tape samples prepared using the tape preparation method in an environment of 23 °C ± 2 °C and 50% ± 2% RH for up to 182 days as indicated in Tables 3 to 5 below to produce cured polymer products. Measure the hot creep of the cured polymer products according to the hot creep test method. Hot water curing method. Immerse tape samples prepared using the tape preparation method for 20 hours in a water bath at 90 °C ± 2 °C as indicated in Tables 3 to 5 below to produce cured polymer products. Measure the hot creep of the cured polymer products according to the hot creep test method. Hot creep test method. Measure the degree of crosslinking, and therefore the degree of cure, in test samples of polymer products cured using the moisture-curing method. Subject the test samples to the hot creep test method with a load, Wt, at 200 °C, in accordance with UL 2556. Wire and cable testing methods. Article 7.9. Load weight = CA * 200 kilopascals (kPa, 29.0 foot-pounds per square inch), where CA is the cross-sectional area of ​​a dog bone specimen cut from a pressed plate prepared according to the plate preparation method. Prepare three dog bone specimens per test material. Make two marks on the specimen at an original distance G from each other, where G = 25 ± 2 mm. Place in the upper grip of the hot creep test assembly. Hang the 0.2 megapascal (MPa) load from the specimen in the grip. Heat the test assembly with the dog bone specimen in a preheated circulating air oven at 200 °C ± 2 °C for 15 minutes, and then, with the load still in place, measure the final length of the specimen between the marks. Calculate the percentage of hot creep elongation (HCE) according to equation 1: HCE = [100 * (De- G)] / G (1).The amount of elongation divided by the initial length provides a determination of hot creep as a percentage. The lower the hot creep percentage, the less elongation of a loaded test specimen, and therefore the greater the degree of crosslinking and, consequently, the greater the degree of curing. A lower hot creep value indicates a higher degree of crosslinking. Determining the hot creep of cured specimens immersed in a water bath at 90 °C ± 2 °C for 20 hours indicates the final degree of crosslinking in the cured product.The higher the final degree of crosslinking in the cured polymer product, the greater the amounts of non-crosslinkable polymer or non-moisture-curable polymer (e.g., peroxide and / or light curable only) (e.g., other than HSG-FP Copolymer (e.g., polyethylene)) that can be incorporated into the moisture-curable polyethylene formulation while the cured polymer product still achieves satisfactory hot creep performance of less than or equal to 175% after curing. Wire coating preparation method: A 1.91 cm (¾ inch) BRABENDER extruder with a variable speed drive, a 25:1 Maddock mix head screw, a BRABENDER cross-head wire die, a laboratory water cooling channel with a blow ring, a laser micrometer, and a variable speed wire extractor were used, with a temperature profile of 150 °C (zone 1), 170 °C (zone 2), 190 °C (zone 3), and 195 °C (head / die) and a 40 / 40 mesh filter pack. The melt was extruded at a screw speed of 40 revolutions per minute (rpm) and a pickup speed of approximately 2.4 meters (m) (8 feet) per minute, depositing a coating of the molten mixture onto 14 AWG (1.628 mm diameter; AMG is American Wire Gauge) solid copper wire. The coating had a nominal wall thickness of 0.8 mm. Coated Wire Curing Method: Cured wire samples, prepared according to the wire coating preparation method, were immersed in a water bath maintained at 95 °C for varying periods of time, as reported below, to obtain cured insulated wire samples. A portion of the cured coating (insulation) was removed by gently stretching the copper to facilitate stripping, and the hot creep performance of the insulation was measured. The insulation samples without the conductor were tested for hot creep in an oven set at 200 °C under a stress of 0.2 MPa applied to the underside of the sample to allow elongation over 15 minutes. Report the result as the average elongation of three samples expressed as a percentage. Refer to the hot creep test method for further details. Moving Die Rheometer (MDR) Test Method (MDR: ML at 182 °C (Nm), MDR: MH-ML at 182 °C (Nm)): ASTM D528912, Standard Test Method for Vulcanization Property of Rubber by Use of Rotorless Curing Gauges. Measure the torque of a 6-gram cold-pressed test specimen using the following procedure. The heated test specimen, obtained directly from a Brabender mixing vessel, was placed in an MDR2000 Moving Die Rheometer (MDR) instrument (Alpha Technologies) at 182 °C for 20 minutes at an arc oscillation of 0.5 degrees, while monitoring the change in torque. Designate the lowest measured torque value as ML, expressed in deciNewton-meters (dN-m). As curing or cross-linking progresses, the measured torque value increases, eventually reaching a maximum torque value. Designate the maximum or highest measured torque value as MH, expressed in dN-m. All else being equal, the higher the torque value MH, the greater the degree of cross-linking. All else being equal, the greater the difference between the torque value MH and ML, the greater the amount of cross-linking. Measured in pound-in-inches (lb-in.), and converted to Newton-meters (Nm), where 1.00 lb-in. = 0.113 Nm. Polyolefin solids 1: a linear low-density polyethylene (LLDPE) having a density of 0.92 g / cm3 and a melt index (I2) of 0.65 g / 10 min. It is used in pellet form. Polyolefin solids 2: A reactor-prepared HSG-FP copolymer was prepared by the copolymerization of ethylene and vinyltrimethoxysilane (VTMS) at high pressure and temperature in the presence of an organic peroxide catalyst and in the absence of a metal-based catalyst. The HSG-FP copolymer had a trimethoxysilylethyl group content of 1.5 wt%, a density of 0.92 g / cm³, and a melt index (I²) of 1.5 g / 10 min. It is used in the form of dry pellets. Polyolefin 3 Solids: A reactor-derived HSG-FP copolymer prepared by the copolymerization of ethylene and 3-methacryloxypropyltrimethoxysilane (M3M) at high pressure and temperature in the presence of an organic peroxide catalyst and in the absence of a metal-based catalyst. Polyolefin 3 solids have a melt index (I2) of 0.9 g / 10 min and an M3M content of 0.9 wt%. It is used in the form of dry pellets. Liquid additive 1: vinyltrimethoxysilane (VTMS), a hydrolyzable silane comonomer with alkenyl functionality, supplied as a pure liquid. Liquid additive 2: dicumyl peroxide (DCP), an organic peroxide, supplied as a pure liquid. Liquid Additive 3: Dibutyltin dilaurate (DBTDL), a moisture-curing catalyst, supplied as a pure liquid. Liquid Additive 4: Octyltriethoxysilane (OTES), a burn retardant, supplied as a pure liquid. Available as PROSIL 9202. Solid particulate additive 1: a natural catalyst stock mix (color-free) comprising 85 wt% of a linear low-density polyethylene (LLDPE) having a density of 0.92 g / cm3 and a melt index (I2) of 0.65 g / 10 min, 9 wt% of a low-density polyethylene (LDPE) having a density of 0.92 g / cm3 and a melt index (I2) of 2 g / 10 min, 3.4 wt% of a solid antioxidant pentaerythritol tetrakis(3-(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)propionate and 2.6 wt% of dibutyltin dilaurate. (Overnight vacuum dried at 60 °C prior to use). Solid particulate additive 2: alumina trihydrate (ATH), an in situ moisture generating agent, supplied as a pure solid. Comparative Example 1 (CE1): Prepare a homogeneous mixture by melt-mixing its components (Polyolefin Solids 1, Liquid Additives 1 and 2, and Solid Particulate Additive 1) in an extruder. Polyolefin Solids 1 were preheated to 70 °C for one hour in a glass flask. Liquid Additives 1 and 2 were added. The mixture was drum-mixed for 10 minutes. The glass flask containing the mixture was left in an oven overnight at room temperature for 16 to 20 hours to complete the soaking of Liquid Additives 1 and 2 in the Polyolefin Solids 1. The resulting soaked Polyolefin Solids 1, in Liquid Additives 1 and 2, was physically mixed with Solid Particulate Additive 1 to obtain a heterogeneous mixture. The Polyolefin Solids 1 and Solid Particulate Additive 1 were then melted. heterogeneous mixture, and mixed the molten heterogeneous mixture in a BRABENDER inch extruder (1.91 cm) with a qq 1 znn / zznz / E / YiAi variable speed drive, a 25:1 Maddock mixing head spindle, a BRABENDER crosshead wire die, a laboratory water cooling channel with a blow ring, a laser micrometer and a variable speed wire extractor, temperature profile of 150 °C (zone 1), 170 °C (zone 2), 190 °C (zone 3), and 195 °C (head / die) and a 40 / 40 mesh filter pack to obtain a melt-blended homogeneous mixture of a melt of Polyolefin Solids 1, a melt of Particulate Solid Additive 1 and Liquid Additives 1 to 3. Comparative Example IA (CE1A). The melt-blended homogeneous mixture of CE1 was extruded as a coating onto a 14 AWG solid copper wire to simulate the fabrication of the coated conductor and to measure the hot creep performance of the coating. Using the same extruder and extruder conditions as for CE1, the melt-blended homogeneous mixture was extruded as a coating onto the wire according to the wire coating preparation method described above. The coating was cured to obtain an insulated wire of CE1A, a portion of the insulation was removed, and the hot creep performance of the insulated wire was measured according to the coated wire curing method. Example of the invention 1 (IE1): preparing a homogeneous mixture by acoustically mixing its components (polyolefin solids 1, liquid additives 1 and 2, and particulate solid additive 1) in an acoustic mixer. 150 grams (g) of polyolefin solids 1, 2.41 g of liquid additive 1, and 0.16 g of liquid additive 2 were added to a glass flask, and the contents of the flask were acoustically mixed using a RESODYN acoustic mixer (LabRAM mixer) at a temperature of 23° to 26°C for 2 minutes to prepare a first homogeneous mixture. Then, 8 g of particulate solid additive 1 were added to form a second heterogeneous mixture. The second heterogeneous mixture was acoustically mixed for 0.5 minutes to obtain a second homogeneous mixture. Example of Invention IA (IE1A): The second acoustically blended homogeneous mixture of IE1 was extruded as a coating onto a 14 AWG solid copper wire to simulate the fabrication of the coated conductor and to measure the hot creep performance of the coating. The second homogeneous mixture of IE1 was added to the ¾-inch (1.91 cm) BRABENDER extruder, and the Polyolefin Solids 1 and the Solid Particulate Additive 1 were melted to obtain the second homogeneous mixture as a melt. Using the same extruder and extruder conditions as in CE1, the melt was extruded as a coating onto the wire according to the method of preparing the wire coating described above. The coating was cured to obtain an IE1A insulated wire, and a portion of the insulation was removed, and the hot creep performance of this was measured according to the coated wire curing method. qq i znn / zznz / E / YiAi Table 1: Compositions of Comparative Example 1 and Example of the Invention 1 and hot creep performance of Comparative Example 1 and Example of the Invention 1A. Ex. no. CE1 IE1 CE1A IE1A Polyolefin solids 1 (LLDPE polymer), (% by weight) 93.4 93.4 93.4 93.4 Liquid additive 1 (VTMS) (% by weight) 1.5 1.5 1.5 1.5 Liquid additive 2 (DCP) (% by weight) 0.1 0.1 0.1 0.1 Particulate solid additive 1 (% by weight) 5 5 5 5 Total 100 100 100 100 Hot creep (200 °C, 0.2 MPa) Curing performance: (% elongation, after curing for 0.5 hours) N / a N / a 68.4 67.1 Hot creep (200 °C, 0.2 MPa) Curing performance: (% elongation, after curing for 1 hour) N / a N / a 39.1 37.2 Hot creep (200 °C, 0.2 MPa) Curing performance: (% elongation, after curing for 2 hours) N / a N / a 30.5 29.4 Hot creep (200 °C, 0.2 MPa) Curing performance: (% elongation, after curing for 6 hours) N / a N / a 16.2 17.4 Unaged mechanical property: tensile strength (MPa) N / a N / a 14.7 15.7 Unaged mechanical property: elongation (%) N / a N / a 243 259 Aged mechanical property (135 °C, 7 days): tensile strength (MPa) N / a N / a 13.7 13.9 Aged mechanical property (135 °C, 7 days): elongation (%) N / a N / a 207 214 qq i znn / zznz / E / YiAi In Table 1, the hot creep measurements taken after curing the CE1 and IE1 blends to obtain CE1A and IE1A insulated wires surprisingly show that the percentage elongation of the cured samples prepared by curing the acoustically blended homogeneous mixture of the invention for 0.5, 1, or 2 hours is advantageously lower than the percentage elongation of the cured samples prepared by curing the homogeneous mixture mixed by comparative fusion for 0.5, 1, or 2 hours. That is, a higher degree of curing (crosslinking) is advantageously achieved sooner with the mixture of the invention. However, the percentage elongation of the cured sample prepared by curing the acoustically blended homogeneous mixture of the invention for 6 hours was higher than the percentage elongation of the cured samples prepared by curing the homogeneous mixture mixed by comparative fusion for 6 hours.A key benefit of the invention is easier mixing, as demonstrated by the above. Furthermore, the tensile strength, both unaged and aged, was higher for the acoustically mixed homogeneous mixture of the invention IE1 than for the fusion-mixed homogeneous mixture CE1. Comparative Example 2 (CE2): Prepare a homogeneous mixture by melt-mixing its components (Polyolefin Solids 2 and Liquid Additive 4) by soaking. Polyolefin Solids 2 were preheated to 70 °C for 30 minutes in a glass flask. Liquid Additive 4 was added. The mixture was drum-mixed for 10 minutes. The glass flask containing the mixture was left in an oven overnight at room temperature for 16 to 20 hours to complete the soaking of Liquid Additive 4 in the Polyolefin Solids 2. Example of the invention 2 (IE2): preparing a homogeneous mixture by acoustically mixing Polyolefin Solids 2, Liquid Additive 3 and Solid Particulate Additive 2 in an acoustic mixer. 160 g of Polyolefin Solids 2 and Liquid Additive 3 were added to a glass flask to prepare a first heterogeneous mixture comprising Polyolefin Solids 2 and Liquid Additive 3; and the contents of the flask were acoustically mixed with a RESODYN acoustic mixer (LabRAM mixer) at 23° to 26°C for 2 minutes to prepare a first homogeneous mixture comprising Polyolefin Solids 2 and Liquid Additive 3. Then, Particulate Solid Additive 2 was added to the first homogeneous mixture to obtain a second heterogeneous mixture comprising Polyolefin Solids 2, Particulate Solid Additive 2 and Liquid Additive 3.The second heterogeneous mixture was acoustically mixed with the RESODYN acoustic mixer (LabRAM mixer) at 23° to 26°C for 2 minutes to prepare a second homogeneous mixture comprising Polyolefin Solids 2, Particulate Solid Additive 2, and Liquid Additive 3. Example of the invention 3 (IE3): preparing a homogeneous mixture by acoustically mixing Polyolefin Solids 2, Liquid Additives 3 and 4, and Solid Particulate Additive 2 in an acoustic mixer. 160 g of Polyolefin Solids 2 and Liquid Additive 4 were added to a glass flask to prepare a first heterogeneous mixture comprising Polyolefin Solids 2 and Liquid Additive 4; The contents of the flask were acoustically mixed using a RESODYN acoustic mixer (LabRAM mixer) at 23° to 26°C for 2 minutes to prepare a first homogeneous mixture comprising Polyolefin Solids 2 and Liquid Additive 4. Particulate Solid Additive 2 and Liquid Additive 3 were then added to the first homogeneous mixture to obtain a second heterogeneous mixture comprising Polyolefin Solids 2, Particulate Solid Additive 2, and Liquid Additives 3 and 4.The second heterogeneous mixture was acoustically mixed using the RESODYN acoustic mixer (LabRAM mixer) at 23° to 26°C for 2 minutes to prepare a second homogeneous mixture comprising Polyolefin Solids 2, Particulate Solid Additive 2, and Liquid Additives 3 and 4. Example of the invention 4 (IE4): preparing a homogeneous mixture by acoustically mixing Polyolefin Solids 3, Liquid Additive 3, and Particulate Solid Additive 2 in an acoustic mixer. Repeat the procedure of IE2 except that you replace the Polyolefin Solids 2 with an equal weight of Polyolefin Solids 3 to prepare a first homogeneous mixture comprising Polyolefin Solids 3 and Liquid Additive 3; a second heterogeneous mixture comprising Polyolefin Solids 3, Particulate Solid Additive 2, and Liquid Additive 3; and a second homogeneous mixture comprising Polyolefin Solids 3, Particulate Solid Additive 2, and Liquid Additive 3. Example of the invention 5 (IE5): Polyolefin solids 2 soaked in liquid additive 4 resulting from CE2 were mixed with particulate solid additive 2 and liquid additive 3 to obtain a heterogeneous mixture. The heterogeneous mixture was acoustically mixed with the RESODYN acoustic mixer (LabRAM mixer) at 23° to 26°C for 2 minutes to prepare a first homogeneous mixture of polyolefin solids 2, particulate solid additive 2, and liquid additives 3 and 4. Table 2: Compositions of Comparative Example 2 and Examples of the Invention 2 to 5, visual observations and performance of the moving matrix rheometer (MDR). Ex. No. CE2 IE2 IE3 IE4 IE5 Polyolefin Solids 2 (ethylene copolymer / VTMS) (% by weight) 96.8 97.8 96.8 0 96.8 Polyolefin Solids 3 (ethylene copolymer / M3M) (% by weight) 0 0 0 97.8 0 Liquid Additive 3 (DBTDL) (% by weight) 0.2 0.2 0.2 0.2 0.2 Liquid Additive 4 (OTES) (% by weight) 1 0 1 0 1 Particulate Solid Additive 2 (ATH) (% by weight) 2 2 2 2 2 Total 100 100 100 100 100 Visual observation of the second homogeneous mixture: Yes Yes Yes Yes Yes Solid additive in particulate form 2 well dispersed? Visual observation of the second homogeneous mixture: dry solids? Yes Yes Yes Yes Yes Moving matrix rheometer (MDR; 200 °C, 30 min) See below See below See below See below See below ML 0.21 0.32 0.24 0.33 0.21 MH 0.6 1.68 0.63 1.11 0.6 MH-ML 0.4 1.36 0.39 0.78 0.4 In Table 2, the homogeneous compositions of CE2, IE3, and IE5 contained an optically charged flammable liquid (OTES), while the homogeneous compositions of IE2 and IE4 did not. In Table 2, the effectiveness of acoustic mixing in preparing homogeneous compositions for IE2 through IE5 is similar to the soaking method for CE2, but the acoustic mixing method achieves homogeneity in a substantially shorter time and at a substantially lower temperature. Furthermore, the acoustic mixing method was also effective in preparing homogeneous mixtures in the form of dry pellets or powder. Examples of the invention 6 to 11 (IE6 to IE11): preparing a homogeneous mixture by acoustically mixing Polyolefin Solids 1, Liquid Additives 2 and 3, Solid Particulate Additive 2 and, optionally, Liquid Additive 1, in an acoustic mixer. 160 g of Polyolefin Solids 1 and Liquid Additives 2 and 3, Solid Particulate Additive 2 and, optionally, Liquid Additive 1, were added to a glass flask to prepare a heterogeneous mixture comprising Polyolefin Solids 1, Liquid Additives 2 and 3, Solid Particulate Additive 2 and, optionally, Liquid Additive 1; and the contents of the flask were acoustically mixed with a RESODYN acoustic mixer (LabRAM mixer) at 23 °C to 26 °C for 1 minute to prepare a homogeneous mixture comprising Polyolefin Solids 1, Liquid Additives 2 and 3, Solid Particulate Additive 2 and, optionally, Liquid Additive 1. Table 3: Compositions of examples of the invention 6 to 11, visual observations and performance of the moving array rheometer (MDR). qq i znn / zznz / E / YiAi Ex. no. IE6 IE7 IE8 IE9 EI10 IE11 Polyolefin solids 1 (LLDPE polymer) (% by weight) 97.75 97.7 97.6 96.25 96.2 96.1 Liquid additive 1 (VTMS) (% by weight) 0 0 0 1.5 1.5 1.5 Liquid additive 2 (DCP) (wt%) 0.05 0.1 0.2 0.05 0.1 0.2 Liquid Additive 3 (DBTDL) 0.2 0.2 0.2 0.2 0.2 0.2 (% by weight) Solid particulate additive 2 (ATH) (% by weight) 2 2 2 2 2 2 Total 100 100 100 100 100 100 Visual observation of the second homogeneous mixture: Is solid particulate additive 2 well dispersed? Yes Yes Yes Yes Yes Yes Visual observation of the second homogeneous mixture: Are there any dry solids? Yes Yes Yes Yes Yes Yes Moving matrix rheometer (MDR; 160 °C, 60 min, followed by 200 °C, 30 min) See below See below See below See below See below See below ML 0.86 1.18 1.2 0.67 0.92 2.27 MH 0.95 1.35 1.38 0.88 1.48 3.11 MH-ML 0.09 0.17 0.2 0.21 0.56 0.84 Table 3 shows the test results of homogeneous blends of IE6 to IE11 in an MDR at 160 °C for 60 minutes, followed by another 30 minutes at 200 °C. The total increase in MDR torque (delta torque) was calculated over the entire 90-minute period, the calculated values ​​of which served as indicators of the degree of crosslinking due to the thermal decomposition of peroxide (leading to peroxide crosslinking via carbon-carbon coupling) and / or decomposition of the solid particulate Additive 2 (ATH), leading to in situ water generation and thus silane crosslinking via hydrolysis and condensation reactions when Liquid Additive 1 (VTMS) had been grafted onto the polyethylene. With a loading of 0.05% by weight of Liquid Additive 2 (DCP), there was little or no difference in delta torque with and without Liquid Additive 1 (VTMS).However, as the amount of Liquid Additive 2 (DCP) increased to 0.2 wt%, homogeneous mixtures containing Liquid Additive 1 (VTMS) exhibited progressively higher delta torque values ​​compared to the corresponding formulations without Liquid Additive 1 (VTMS). Beyond theory, it is considered that the delta torque values ​​observed without Liquid Additive 1 (VTMS) are solely attributable to peroxide-facilitated carbon-carbon crosslinking (Liquid Additive 2 (DCP)), while the delta torque values ​​observed in the presence of Liquid Additive 1 (VTMS) are considered to be due to a combination of peroxide-facilitated carbon-carbon crosslinking (Liquid Additive 2 (DCP)) and moisture-facilitated silane crosslinking.In any given peroxide load (Liquid Additive 2 (DCP)), the difference between the delta torque line graphs versus the MDR time period lines reflects the input. QQ I 7nn / 77P7 / B / YILI additional silane crosslinking over peroxide-only crosslinking. These data indicate that the grafting efficiency of Liquid Additive 1 (VTMS) increased with increasing amounts of Liquid Additive 2 (DCP) in homogeneous blends. After these MDR evaluations, the resulting materials ranged from thermoplastics (at low delta torque values) to thermosets (at higher delta torque values). It is hereby stated that, as of this date, the best method known to the applicant for putting the aforementioned invention into practice is the one that is clear from the present description of the invention.

Claims

1. A method for preparing a homogeneous mixture of polyolefin solids and a liquid additive without melting the polyolefin solids during preparation, characterized in that it comprises applying acoustic energy at a frequency of 20 to 100 hertz (Hz) to a first heterogeneous mixture that comprises at least one liquid additive and polyolefin solids over a period of time and at an acoustic intensity effective to substantially intermix the at least one liquid additive and the polyolefin solids while maintaining the temperature of the first heterogeneous mixture above the freezing point of the at least one liquid additive and below the melting temperature of the polyolefin solids, thus preparing a first homogeneous mixture comprising the polyolefin solids and the at least one liquid additive without melting the polyolefin solids.

2. The method according to claim 1, characterized in that the application step is characterized by any of characteristics (i) to (v): (i) the frequency is 50 to 70 Hz; (ii) the time period is from 0.5 minutes to 4 hours; (iii) both (i) and (ii); (iv) maintaining the temperature of the first heterogeneous mixture below the melting temperature of the polyolefin solids comprises maintaining the temperature of the first heterogeneous mixture from 10° to 109°C; and (v) both (iv) and any of (i) to (iii).

3. The method according to claim 1 or 2, characterized in that the polyolefin solids of the first heterogeneous mixture are characterized by a physical form that is a powder, granules or pellets and by a melting temperature that is 61° to 180°C; and the at least one liquid additive of the first heterogeneous mixture is characterized by a freezing point of less than 20°C or by a melting point of 20° to 99°C; and the first heterogeneous mixture is maintained at a temperature greater than the freezing point or melting point of the at least one liquid additive and less than 110 ° C during the application step.

4. The method according to any of claims 1 to 3, characterized in that the polyolefin of the polyolefin solids is: a polyethylene homopolymer; an ethylene / alpha-olefin copolymer; a polyethylene copolymer with functionality (hydrolyzable silyl group) (HSG-FP Copolymer); an ethylene / unsaturated carboxylic ester copolymer; or a mixture of any two or more of these. The polyolefin can be the polyethylene copolymer with functionality (hydrolyzable silyl group) (HSG- qq i ζηη / ζζηζ / Ε / γίΛΐ FP Copolymer) 5. The method according to any of claims 1 to 4, characterized in that the at least one liquid additive is any one or more of the additives (B)üq to (I)iiq: (B)nq a silanol condensation catalyst liquid; (C) iiq a liquid antioxidant; (D) iiq a liquid dye; (E) iiq a liquid burn retardant; (F)uq a liquid stabilizer to stabilize the homogeneous mixture against the effects of ultraviolet light (UV stabilizer); (G) üq a liquid processing aid; (H)iiq a liquid flame retardant; and (I) iiq a liquid polymer that is not (A).

6. The method according to any of claims 1 to 5, characterized in that the first heterogeneous mixture further comprises at least one particulate solid additive that is different from polyolefin solids and the first homogeneous mixture further comprises the at least one additive solid in particles.

7. The method according to any of claims 1 to 6, characterized in that it further comprises, before the application step, preparing the first heterogeneous mixture by means of the contact step (i) or (ii): (i) putting in contacting the polyolefin solids with the at least one liquid additive to prepare the first heterogeneous mixture; or (ii) contacting the polyolefin solids with a lower melting point solid additive having a melting point qqi ζηη / ζζηζ / Ε / γ of 25° at 110°C to prepare a premix of heterogeneous solids, and melting the lower melting point solid additive without melting the polyolefin solids to prepare the first heterogeneous mixture.

8. The method according to any of claims 1 to 7, characterized in that it further comprises a step of contacting the first homogeneous mixture with at least one particulate solid additive that is different from the polyolefin solids to prepare a second mixture heterogeneous comprising the first homogeneous mixture and at least one particulate solid additive; and then applying acoustic energy at a frequency of 20 to 100 Hz and at an effective acoustic intensity to substantially intermix them while maintaining the temperature of the second heterogeneous mixture above the freezing point of the at least one liquid additive and below the temperature of fusion of the polyolefin solids, thereby preparing a second homogeneous mixture comprising the polyolefin solids, the at least one liquid additive and the at least one particulate solid additive, without melting the polyolefin polymer solids during the steps of preparation.

9. The method according to any of claims 1 to 8, characterized in that it further comprises a step of melting the polyolefin solids of the homogeneous mixture to prepare a molten mixture; forming the molten qq i znn / zznz / E / YiAi mixture to obtain a shaped molten mixture; and cooling the shaped molten mixture to obtain a shaped solid.

10. The method according to claim 9, characterized in that the forming step comprises extruding the molten mixture as a coating onto a conductive core and allowing the coating to solidify to prepare a coated conductor comprising the conductive core and a solid with form of coating that at least partially covers the conductive core.

11. The method of claim 9 or 10, further comprising curing the polyolefin of the shaped solid to obtain a shaped cured product.

12. The cured product characterized in that it is shaped prepared by the method according to claim 11.