Adhesive tape for wrapping elongated goods such as cable harnesses and use of the adhesive tape for wrapping

The adhesive tape with a textile carrier and controlled polymer dispersion addresses the challenges of easy unwinding and plasticizer migration, providing durable cable protection and adherence across temperature classes.

DE102020212233B4Active Publication Date: 2025-07-31TESA SE
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Patent Information

Application Number
DE102020212233
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-09-29
Publication Date
2025-07-31
Estimated Expiration
2040-09-29

AI Technical Summary

Technical Problem

Existing adhesive tapes for cable sheathing in vehicles face challenges in achieving easy unwinding while maintaining good adhesive properties, particularly at elevated temperatures, and preventing plasticizer migration that leads to cable embrittlement, while meeting stringent performance standards for temperature resistance and flagging resistance.

Method used

An adhesive tape with a textile carrier and a pressure-sensitive adhesive composed of a thickened dried polymer dispersion, including monomeric acrylates, ethylenically unsaturated comonomers, tackifiers, and kaolin, prepared by emulsion polymerization, with controlled viscosity and crosslinking to balance cohesion and adhesion, and optionally impregnated with acrylate dispersion for improved compatibility and stability.

Benefits of technology

The adhesive tape achieves excellent unwinding forces, good cable compatibility across various temperature classes, and reduces plasticizer migration, ensuring durable and reliable cable protection under stress conditions.

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Abstract

Adhesive tape (11, 60, 70), in particular for wrapping cables (7), comprising a textile carrier (1) and a pressure-sensitive adhesive in the form of a thickened, dried polymer dispersion (2) applied to at least one side of the carrier (1), wherein the unthickened, dried polymer dispersion (2) comprises polymers which are composed of or obtainable from: (I) a) monomeric acrylates at 30.0 to 88.0 wt.% and 0.0 to 2.0 wt.% of a di- or polyfunctional monomer, particularly preferably at 0.0 to 1.0 wt.% of a di- or polyfunctional monomer, b) ethylenically unsaturated comonomers at 10.0 to 48.0 wt.% selected from at least one ethylenically unsaturated monofunctional monomer or a mixture of these and from one or more ethylenically unsaturated monomers having an acid or acid anhydride function, the latter 0.0 to 10.0 wt.% of the maximum 10 wt.%,c) 1.0 to 10.0 wt.% tackifierd) 1.0 to 10.0 wt.-% kaolin or (II) a) monomeric acrylates at 68.0 to 97.0 wt.% and 0.0 to 2.0 wt.% of a di- or polyfunctional monomer, particularly preferably at 0.0 to 1.0 wt.% of a di- or polyfunctional monomer, b) ethylenically unsaturated comonomers at 1.0 to 10.0 wt.% selected from at least one ethylenically unsaturated monofunctional monomer or a mixture of these and from one or more ethylenically unsaturated monomers with an acid or acid anhydride function, the latter making up 0.0 to 10.0 wt.% of the maximum 10 wt.%, c) 1.0 to 10.0 wt.% tackifier d) 1.0 to 10.0 wt.-% kaolin, wherein the polymer dispersion (2) is prepared by reacting the monomers according to (I) and (II) in an emulsion polymerization, wherein an organic rheology additive is added to the polymer dispersion (2) so that the polymer dispersion (2) before drying has a viscosity of 40 Pa*s up to 100 Pa*s, preferably 50 Pa*s up to 80 Pa*s at a shear rate of 10 / s and a viscosity of 3000 Pa*s up to 8000 Pa*s, preferably 4000 Pa*s up to 6000 Pa*s at a shear rate of 0.01 / s.
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Description

The invention relates to an adhesive tape for sheathing elongate material, such as in particular cable sets in automobiles, and to the use of the adhesive tape for sheathing.For some time, adhesive tapes have been used in industry for producing cable harnesses. The adhesive tapes are used for bundling a multiplicity of electrical lines before installation or in an already mounted state, in order, for example, to reduce the space requirement of the line bundle by banding and additionally to achieve protective functions such as protection against mechanical and / or thermal stress.Common forms of adhesive tapes comprise film or textile supports which are generally coated on one side with pressure-sensitive adhesives. Adhesive tapes for enclosing elongate articles are known, for example, from EP 1 848 006 A2, DE 10 2013 213 726 A1 and EP 2 497 805 A1.Film adhesive tapes provide a certain protection against liquid access, and airy and bulky adhesive tapes based on thick nonwovens or foams as supports provide cushioning properties, and a protection function against scrubbing and rubbing is achieved when abrasion-resistant, stable support materials are used. Particular protection against impact is achieved by abrasion-resistant fabrics with additionally applied coatings.In addition to the classical vehicles with internal combustion engines, hybrid electric vehicles (HEV) and battery electric vehicles (BEV) are becoming increasingly important.A hybrid electric motor vehicle is a hybrid-drive vehicle, i.e. an electric vehicle which is driven by at least one electric motor and a further energy converter and draws energy both from its electrical storage device (battery) and from an additionally carried fuel. A fully electric vehicle is powered solely by a battery-powered electric motor and therefore does not require fossil fuel. The battery is charged via external power supplies.In all motor vehicles, the quantity of electrical lines increases as a result of increased use of electrical components, while at the same time the installation space for the line set becomes increasingly smaller, particularly in small motor vehicles. The construction of electric vehicles and hybrid vehicles also requires more electrical lines. The use of electric voltages above 42 V requires additional protection of the lines, which must also ensure protection in special accident situations beyond the normal use of the vehicle.Adhesive tapes for cable sheathing are tested and classified in the automotive industry according to extensive standards works such as, for example, LV 312-1 "Protective Systems for Line Sets in Motor Vehicles, Adhesive Tapes; Test Guideline" (10 / 2009) as a common standard of the companies Daimler, Audi, BMW and People's Car or the Ford specification ES-XU5T-1A303-aa (Revision 09 / 2009) "Urinary Tape Performance Specification"). Hereinafter, these standards will be referred to as LV 312 and Ford specification, respectively, for short.Cable winding tapes with film and textile supports are widely used, which are generally coated on one side with different PSAs. These cable winding tapes must meet four main requirements: a. easy unwindability: the product, which is in roll form, must be easily developable for simple processing, b. cable compatibility: the cable insulation must not become brittle over a relatively long period of time due to the influence of the adhesive tape in combination with elevated temperature. According to LV 312, a distinction is made here between four temperature classes T1 to T4, corresponding to 80° C. (also called temperature class A), 105° C. (also called temperature class B (105)), 125 ° C. (also called temperature class C) and 150° C. (also called temperature class D), which the wound cables must withstand without embrittlement for 3000 hours. It goes without saying that the temperature classes T3 and T4 place higher demands on the adhesive tape than the lower classes T1 and T2. The classification T1 to T4 is decided by both the cable insulation material and also pressure-sensitive adhesive and carrier type. c. Chemical compatibility or compatibility with media in the engine compartment d. Good bond strength The bond strength must be sufficient under bending stress on uneven, uneven substrates such as cable strands, corrugated tubes and branches. This is accompanied by bending and tensile stress during production, installation and subsequent use in the engine compartment of an automobile or also in the body with constant bending stress during the opening of doors.Since the end of the adhesive tape is ideally bonded to its own rear side, a good immediate adhesive force (tack) must be present on this substrate so that the adhesive tape does not flag at the beginning. In order to permanently ensure flagging of free product, the anchoring on the substrate and the internal strength of the adhesive must be so pronounced that the adhesive bond also has occurred under the influence of stress (tensile and bending stress). When winding a cable set, the adhesive tape is bonded around the cable from not at all to completely overlapping, which generally has a small radius, so that the adhesive tape is very strongly curved. At the end of a winding section, the tape is usually predominantly wound onto its own rear side, so that the degree of overlap is virtually complete, similar to the conventional dosage form as an adhesive tape roll, where the adhesive is likewise bonded to its own rear side. During flagging, static forces act, for example, as a result of the bending stiffness of the carrier and the winding tension, which can lead to the open adhesive tape ends being set up in an undesired manner, similar to starting automatic unwinding. The flagging resistance is thus the ability of the adhesive to resist this static force.Flagging is understood to mean the tendency of an adhesive tape end to stand-off in the case of an adhesive tape wound around a body. The cause arises from the combination of the holding force by the adhesive, the stiffness of the support and the diameter of the cable set.The detection of the flagging resistance of wire harnessing (WH) cable winding tapes is carried out by the TFT method (threshold flagging time). A limit value of clearly more than 1000 min TFT, preferably more than 2000 min TFT, is defined as the target variable for a perfectly flagging-free fabric product.The realization of adhesive tapes which can be easily rolled off while simultaneously maintaining good adhesive properties presents a great challenge, because both properties seem to be ruled out. This is because the essential criteria for cable winding tapes which are adhesive on one side and have an adapted rolling force and sufficiently high adhesive force are in sharp contrast to one another. While good flow and anchoring behavior of the PSA is assumed for good bond strength values and a low flagging potential associated therewith, these criteria are rather detrimental to pleasant unwind behavior.Since in the case of textile carrier materials a reduction in the rolling force by release agents can only be realized at high cost, the adhesive tape layers are wound directly on top of one another and the adhesive composition thereby adheres to the rear side of the respective lower tape layer. In order to ensure unwinding without adhesive residues on the backing side, the highest demands are made of a balanced ratio of cohesion and adhesion.For example, cable-wound tapes with pressure-sensitive adhesives based on natural rubber usually have good flagging resistance, but they exhibit a rolling force which increases over the storage time and at elevated temperatures. Moreover, they meet only the lower temperature classes for cable compatibility.WO 2006 / 015 816 A1 discloses PSAs based on synthetic rubber with photoinitiators. EP 1 431 360 A2 discloses self-winding adhesive tapes comprising a thermally bonded nonwoven having a basis weight of from 10 to 50 g / m 2 and UV-cured acrylate adhesive. Also known are woven adhesive tapes which are based on a crosslinked acrylate hotmelt composition, usually on pure acrylate, and are classified according to LV 312 into temperature class D (150° C.). These have a low mass anchoring and lead to mass rewinding in the case of smooth carrier surfaces. Also known are tissue adhesive tapes which are based on an acrylate dispersion composition and are classified according to LV 312 into temperature class D (150° C.). Likewise known are nonwoven adhesive tapes which are based on a crosslinked acrylate hotmelt composition, usually pure acrylate, and which are classified according to LV 312 into temperature class C (125 ° C). All the woven products have the same adhesive composition which is adjusted to the respective requirements by application of the composition and UV crosslinking. The disadvantages of applying these tapes to the cable set are the markedly protruding tape ends when these adhesive tapes of the standard instrument are applied to critical windings such as branches, transitions, small diameters, etc. Although its roll-off force level can be well controlled with the aid of the chosen application of mass and, above all, UV crosslinking, this is associated with the undesirable side effects of markedly decreasing adhesive forces and an uncalculable risk of flagging. In addition, acrylate hotmelt adhesives can only be blended under difficult conditions in order to incorporate resins or fillers. Against the background of cost savings, the use of fillers in mass design is known.The cable insulation must not be brittle over a relatively long period of time due to the effect of the adhesive tape in combination with elevated temperature. According to LV 312, inter alia, a distinction is made here between four temperature classes T1 to T4, corresponding to 80° C. (also called temperature class A), 105° C. (also called temperature class B(105)), 125 ° C. (also called temperature class C) and 150° C. (also called temperature class D), to which the wound cables must withstand for more than 3000 h without embrittlement. It goes without saying that the temperature classes T3 and T4 place higher demands on the adhesive tape than the lower classes T1 and T2. The classification T1 to T4 is decided by the cable insulation material as well as by the pressure-sensitive adhesive and carrier type.The realization of adhesive tapes which can be easily rolled off (for cable banding) while simultaneously maintaining good adhesive properties represents a great challenge because both properties seem to be ruled out, since the essential criteria in the case of cable winding tapes which are adhesive on one side, the adapted rolling force and the sufficiently high adhesive force are in sharp contrast to one another. While good flow and anchoring behavior of the PSA is assumed for good bond strength values and a low flagging potential associated therewith, these criteria are rather detrimental to pleasant unwind behavior.Plasticizers are added to plastics such as cable sheaths or sheaths to render them permanently flexible, supple and elastic. Plasticizers can be low-volatility resins, esters or oils.The function of the plasticizers is to shift the thermoplastic range to lower temperatures. Known plasticizers include, for example, DOP (dioctyl phthalate, di-2-ethylhexyl phthalate), DINP (diisononyl phthalate), TOTM (trioctyl trimellitate) or DIDP (diisodecyl phthalate).External plasticizers are frequently used which are not bound covalently into the polymer but interact with the polymer via polar groups in order to allow mobility of the polymeric chains, such as, for example, diethylhexyl phthalate (DEHP), dioctyl phthalate (DOP), as plasticizers for PVC and elastomers. Other plasticizers include citric acid based plasticizers such as triethyl citrate, or adipic acid based plasticizers such as diethyl hexyl adipate and diethyl octyl adipate. The diffusion of these outer plasticizers from the plastics of cable insulations can be significantly reduced by the adhesive tapes of the invention with pressure-sensitive adhesives.The internal plasticizers are understood to mean those which are present during the copolymerization and are copolymerized and cannot subsequently diffuse out of the polymer.Acrylate adhesives generally have a very high affinity for the customary PVC plasticizers, which, in the case of the so-called monomer plasticizers such as, for example, DINP, DIDP or TOTM, leads to a strong tendency of these to migrate precisely. It is also known that when PVC-insulated cable lines are used, extensive plasticizer migration takes place over time and above all under thermal stress until equilibrium is established between insulation and adhesive tape or adhesive. As a result, undesired embrittlement of the cable coverings / cable silos takes place. In combination with aging effects (oxidation, release of plasticizer into the environment, degradation, mechanical loads, etc.), increased plasticizer migration leads to premature failure of the cable insulation due to embrittlement. This is also known as brittle gap in flexible PVC.To reduce or avoid plasticizer migration, two measures are known in the first place: for example, a) the equilibrium can be set in advance by adding plasticizer to the adhesive composition already in the production process. However, this frequently leads to cut-in changes in the adhesive properties, including complete cohesive failure of the composition. Alternatively, b) for establishing an effective barrier, a close-mesh crosslinking of the adhesive composition can be carried out, which, however, can again have dramatic effects on the adhesive technology, or finely dispersed fillers capable of building up a network can be used.The object of the present invention is to provide an adhesive tape whose unwinding forces can be adjusted over a relatively wide range, that is to say which has easy unwinding, which has good cable compatibility over all the temperature classes mentioned for applications in the field of cable banding (wire harness applications (WH)), that is to say excellent compatibility with all common cable insulations, in particular according to the reference spectrum of cables in the LV 312, and which enables the particularly simple, inexpensive and rapid sheathing of elongate material such as cable sets in automobiles.This object is achieved by an adhesive tape as laid down in the main claim. The subject matter of the dependent claims is in this case advantageous developments of the adhesive tape and methods for applying the adhesive tape.Accordingly, the invention relates to an adhesive tape, in particular for wrapping cables, comprising a textile carrier and a pressure-sensitive adhesive applied to at least one side of the carrier in the form of a thickened dried polymer dispersion, wherein the unthickened dried polymer dispersion comprises polymers which are constructed or obtainable from: (I) a) monomeric acrylates to the extent of 30.0 to 88.0, % by weight and 0.0 to 2.0 % by weight of a di- or polyfunctional monomer, particularly preferably to the extent of 0.0 to 1.0 % by weight of a di- or polyfunctional monomer, b) ethylenically unsaturated comonomers to the extent of 10.0 to 48.0 % by weight selected from at least one ethylenically unsaturated monofunctional monomer or a mixture of these and from one or more ethylenically unsaturated monomers having an acid or acid anhydride function, where the latter make up from 0.0 to 10.0% by weight of the maximum 10% by weight, c) from 1.0 to 10.0% by weight of tackifier, d) from 1.0 to 10.0% by weight of kaolin or (II) a) from monomeric acrylates to 68.0 to 97.0% by weight and from 0.0 to 2.0% by weight of a di- or polyfunctional monomer, more preferably from 0.0 to 1.0% by weight of a di- or polyfunctional monomer, b) from 1.0 to 10.0% by weight of ethylenically unsaturated comonomers selected from at least one ethylenically unsaturated monofunctional monomer or a mixture of these and from one or more ethylenically unsaturated monomers having an acid or acid anhydride function, the latter making up from 0.0 to 10.0% by weight of the maximum 10% by weight, c) 1.0 to 10.0 wt % tackifier d) 1.0 to 10.0 wt % kaolin, wherein the polymer dispersion is prepared by reacting the monomers according to (I) and (II) in an emulsion polymerization.An organic rheology additive is added to the polymer dispersion so that the polymer dispersion before drying has a viscosity of 40 Pa*s up to 100 Pa*s at a shear rate of 10 / s and a viscosity of 3000 Pa*s up to 8000 Pa*s at a shear rate of 0.01 / s.Preferably, the polymer dispersion before drying has a viscosity of from 50 Pa*s to 80 Pa*s at a shear rate of 10 / s and a viscosity of from 4000 Pa*s to 6000 Pa*s at a shear rate of 0.01 / s.According to a preferred variant of the invention, the pressure-sensitive adhesive comprises from 0.1 to 5 parts by weight of thickener, based on the mass of the dried polymer dispersion.Monomeric acrylates are understood in the present case as meaning those acrylates in which the acrylate has a carbonyl group (C=O), and preferably all monomeric acrylates have an optionally functionalized parent structure C=C-(C=O)-, such that acrylamides are included in the acrylates and acrylonitriles are included in the ethylenically unsaturated comonomers. The monomeric acrylates are mono-, di- and / or multifunctional acrylates. More preferably, the ethylenically unsaturated comonomers are selected from ethylene-containing monomers, vinyl-functional monomers and unsaturated hydrocarbons having 3 to 8 carbon atoms with respect to the polymers.In contrast to acrylate hotmelts and solvent-based acrylates, the acrylate dispersions, especially aqueous acrylate dispersions, are distinguished by the fact that there is still a certain degree of separation of the polymer balls which result from the individual dispersion spheres in them (see, inter alia, BASF Handbuch Farbeichtechnik, Artur Goldschmidt, Hans-Joachim Stüitberger, 2002, chap. 3.1.2.1, FIG. 3.1.5, page 337 et seq.).In the case of acrylate dispersions, it is not expedient to determine the molecular weight on account of the high gel content. The high gel content results from the chain transfer reactions in the dispersion particles. In particular in emulsion polymerization, the probability of such crosslinking is high, since only growing polymer chains and monomers are present in the dispersion particles, and so this crosslinking is greatly increased compared with solvent polymerization. The special feature of the acrylate dispersions, in particular of the aqueous acrylate dispersions, is that this type of crosslinking gives rise to branched molecules having a high molecular weight in the delimited space of the dispersion particles.The high gel value of the acrylate dispersions also describes well the situation that they can frequently be used as PSAs without further crosslinking; unlike acrylate hotmelts or solvent-based acrylate adhesives, which generally have to be postcrosslinked. Typical acrylate hotmelt compositions have a low gel value of 10%.The polymeric acrylate dispersions used in the PSAs of the invention, in particular dried originally aqueous acrylate dispersions, on the other hand, have a gel value of greater than or equal to 40%, which can be determined by means of soxhlet extraction, in particular greater than or equal to 45%. Typical acrylate dispersions, as can be used according to the invention, are described in DE 10 2011 075 156 A1, DE 10 2011 075 159 A1, DE 10 2011 075 152 A1 and DE 10 2011 075 160 A1. These documents are fully referred to with regard to the acrylate dispersions usable according to the invention. These acrylic dispersions are further explained below.DE 600 09 750 T2 discloses a pressure-sensitive adhesive comprising kaolin and discloses a multilayer composite structure based on a backing made of paper or polymeric film materials.A particular advantage of the PSAs of the invention is the simple and economical individual adjustability of the PSA via the amount of kaolins and also the simple and economically individual adjustability of the acrylate dispersions to the particular requirements and the desired carrier material. A second advantage is that optionally desired crosslinking of the resin-modified acrylate dispersions after drying in the coating process can easily take place from the bulk side by means of EBC in order to establish the optimum of cohesion and adhesion.A substantial advantage which is evident in the properties of the acrylate dispersions is that, unlike hotmelt and solvent adhesives, the acrylate dispersions retain to a certain extent a separation of the polymer balls which emerge from the individual dispersion balls.As a result of the EBC irradiation possible according to the invention, a wide-mesh crosslinking is formed within the polymer balls and leads to an increase in the molecular weight in the polymer balls. Advantageously, virtually no crosslinking takes place between the polymer balls, so that the composition remains readily flowable and enables good wetting of the adhesion base. This phenomenon can be demonstrated by means of rheological investigations (such as DMA, dynamic mechanical analysis).The PSAs of the invention offer particular advantages by virtue of very simple miscibility with predispersed resins, auxiliaries, fillers, antioxidants, etc. It is even possible to adjust the PSAs to be used in accordance with the invention, comprising acrylate dispersions, in such a way that they provide sufficient cohesion even without additional crosslinking (EBC crosslinking) and can be used at the same time with good values for the rolling forces on finished adhesive tape rolls.The invention relates to an adhesive tape having a PSA applied to one side of the backing, the weight per unit area of which is less than or equal to 160 g / m 2 in particular less than or equal to 120 g / m 2, preferably less than or equal to 90 g / m 2, particularly preferably less than or equal to 80 g / m 2, preferably less than or equal to 70 g / m 2 and in alternatives also less than or equal to 60 g / m 2 and less than or equal to 50 g / m 2, in each case with a range of variation of plus / minus 2 g / m 2, preferably with plus / minus 1 g / m 2.The invention also further provides adhesive tapes having a pressure-sensitive adhesive applied to one side of the backing and a backing impregnated with an additional acrylate dispersion, this acrylate dispersion not being included in the weight per unit area of the pressure-sensitive adhesive. The impregnation can be applied with a weight per unit area of less than or equal to 30 g / m 2 in particular less than or equal to 25 g / m 2, preferably less than or equal to 20 g / m 2, particularly preferably less than or equal to 10 g / m 2, each with a variation range of plus / minus 5 g / m 2.The acrylate dispersions used for the impregnation are distinguished in that they preferably have only very low or no pressure-sensitively adhesive properties in the dried state. It is therefore possible to use acrylate dispersions or optionally also polyurethane, rubber-based or SBR impregnations which, in the dried state, preferably have only very low or no pressure-sensitive adhesive properties. In this way, blocking of the layers on the bale is prevented. It is optionally possible to use acrylate dispersions according to the invention having little or no pressure-sensitively adhesive internal shafts, i.e. without resins. Preference is given to supports which do not have impregnation, in particular with an acrylate dispersion.According to the invention, the adhesive tape, in particular for wrapping cables, comprises a carrier and a pressure-sensitive adhesive applied to at least one side of the carrier, comprising a dried acrylate dispersion, wherein the acrylate dispersion, in particular the undried acrylate dispersion, comprises polymers which are constructed or obtainable from (I) a) monomeric acrylates to the extent of 30.0 to 88.0, % by weight and 0.0 to 2.0 % by weight of a di- or polyfunctional monomer, particularly preferably to the extent of 0.0 to 1.0 % by weight of a di- or polyfunctional monomer, b) ethylenically unsaturated comonomers to the extent of 10.0 to 48.0 % by weight selected from at least one ethylenically unsaturated monofunctional monomer or a mixture of these and from one or more ethylenically unsaturated monomers having an acid or acid anhydride function, where the latter make up from 0.0 to 10.0% by weight of the maximum 10% by weight, c) from 1.0 to 10.0% by weight of tackifier, d) from 1.0 to 10.0% by weight of kaolin or (II) a) from monomeric acrylates to 68.0 to 97.0% by weight and from 0.0 to 2.0% by weight of a di- or polyfunctional monomer, more preferably from 0.0 to 1.0% by weight of a di- or polyfunctional monomer, b) from 1.0 to 10.0% by weight of ethylenically unsaturated comonomers selected from at least one ethylenically unsaturated monofunctional monomer or a mixture of these and from one or more ethylenically unsaturated monomers having an acid or acid anhydride function, the latter making up from 0.0 to 10.0% by weight of the maximum 10% by weight, c) 1.0 to 10.0% by weight of tackifier d) 1.0 to 10.0% by weight of kaolin, where the acrylate dispersion is prepared by reacting the monomers according to (I) and / or (II) in an emulsion polymerization.According to further preferred embodiments, the acrylate dispersion comprises polymers which are constructed or obtainable from a) monomeric acrylates selected from alkyl (meth)acrylates such as n-butyl acrylate and 2-ethylhexyl acrylate, preferably C 1- to C 20- alkyl (meth)acrylates, C 1- to C 10- hydroxyalkyl (meth)acrylates such as, in particular, hydroxyethyl or hydroxypropyl (meth)acrylate, acid amides such as acrylamide or methacrylamide, and mixtures of two or more of the monomers, and from b) ethylenically unsaturated comonomers selected from ethylene, aromatic vinyl monomers such as styrene, α-methylstyrene and vinyltoluene, divinylbenzene, vinyl esters of carboxylic acids containing up to 20 carbon atoms such as vinyl laurate, Vinyl ethers of alcohols containing up to 10 carbon atoms, such as vinyl methyl ether or vinyl isobutyl ether, vinyl halides, such as vinyl chloride or vinylidene dichloride, itaconic acid, maleic acid, fumaric acid and / or maleic anhydride, acrylonitrile and / or methacrylonitrile, unsaturated hydrocarbons having 3 to 8 carbon atoms, such as propene, butadiene, isoprene, 1-hexene or 1-octene, and mixtures of two or more comonomers.The ethylenically unsaturated monomers having an acid or acid anhydride function are preferably selected from the group of acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid and / or maleic anhydrideAccording to further preferred embodiments, the acrylate dispersion comprises polymers which are constructed from or obtainable from a) monomeric acrylates selected from acrylic acid or methacrylic acid, n-butyl acrylate, ethyl acrylate such as 2-ethylhexyl acrylate and mixtures of two or more monomers and di- or polyfunctional monomers selected from alkyl diacrylates such as 1,2-ethylene glycol diacrylate, 1,4-butanediol diacrylate, 1,6-hexanediol diacrylate, 1,8-octanediol diacrylate or 1,12-dodecanediol diacrylate, and triacrylates such as trimethylolpropane triacrylate, and tetraacrylates such as pentaerythritol tetraacrylate and optionally in combination with the monomeric comonomers mentioned under b).Typical particle sizes of the dispersed polymers of the invention range from 20 nm to 10 μm.The polymer dispersion is prepared by the process of emulsion polymerization of said components. Descriptions of this method can be found, for example, in "Emulsion Polymerization and Emulsion Polymers" by Peter A. Lovell and Mohamed S. El-Asser-Wiley-VCH 1997-ISBN 0-471-96746-7 or in EP 1 378 527 B1.In the polymerization, it cannot be ruled out that not all monomers are converted to polymers. It is obvious that the residual monomer content should be as low as possible.Preference is given to providing adhesives comprising the polymer dispersion having a residual monomer content of less than or equal to 1% by weight, in particular less than or equal to 0.5% by weight (based on the mass of the dried polymer dispersion).According to a preferred embodiment of the invention, crosslinkers are added to the PSA, i.e. compounds capable of crosslinking.As used herein, the term cross-linker means chemical compounds capable of linking molecular chains together to form three-dimensional cross-linked structures from the two-dimensional structures via formation of intermolecular bridges.Crosslinkers are those-in particular bi- or polyfunctional, usually low molecular weight-compounds which can react under the chosen crosslinking conditions with suitable-in particular functional-groups of the polymers to be crosslinked, thus link two or more polymers or polymer sites to one another (form "bridges") and thus create a network of the polymer to be crosslinked or the polymers to be crosslinked. This generally leads to an increase in cohesion.Typical examples of crosslinkers are chemical compounds which have two or more identical or different functional groups within the molecule or at the two molecule ends and can consequently crosslink molecules of identical or else different structures with one another. In addition, a cross-linking agent can react with the reactive monomer or reactive resin as defined above without causing polymerization in the actual sense. This is because, in contrast to the activator, as described above, a crosslinking agent can be incorporated into the polymer network.In addition to the acrylate polymers listed, additives such as light stabilizers or aging inhibitors can additionally be added to the PSA in the amounts mentioned below, in addition to residual monomers which may be present.In particular, no further polymers such as elastomers are present in the PSA, i.e. the polymers of the PSA consist only of the monomers in the stated quantitative ratios.The adhesive is a pressure-sensitive adhesive, i.e. an adhesive which already allows a permanent bond with almost all substrates under relatively weak pressure and can be detached from the substrate again after use substantially without residue. A pressure-sensitive adhesive has a permanently pressure-sensitive adhesive effect at room temperature, i.e. has a sufficiently low viscosity and a high tack, so that it wets the surface of the respective adhesive base even at low pressure. The bondability of the adhesive is based on its adhesive properties and the redetachability is based on its cohesive properties.In order to achieve pressure-sensitively adhesive properties, the adhesive must be at the processing temperature above its glass transition temperature in order to have viscoelastic properties. Since the cable harness winding takes place at normal ambient temperature (approximately between 15° C. and 25° C.), the glass transition temperature of the PSA formulation is preferably below + 15° C. (determined by DSC (differential scanning calorimetry) in accordance with DIN 53765 at a heating rate of 10 K / min).The glass transition temperature of the acrylate polymers can be estimated from the glass transition temperatures of the homopolymers and their relative ratios according to the equation of Fox).In order to obtain polymers, for example pressure-sensitive adhesives or heat-sealing compositions, having desired glass transition temperatures, the quantitative composition of the monomer mixture is advantageously chosen such that, according to an equation (G1), the composition is determined analogously to the Fox equation (compare T. G. Fox, Bull. Am. Phys. Soc. 1956, 1, 123) gives the desired T G- value for the polymer.The glass transition temperature is necessarily increased by about 5 to 40 K, depending on the amount of addition, compatibility and softening temperature, by the optional addition of tackifiers.Acrylate copolymers having a glass transition temperature of not more than 0° C. are therefore preferred.According to ASTM D330, the polymers according to the invention have an adhesive force on steel of at least 1.0 N / cm (at a basis weight of the adhesive of 30 g / m 2 on a 23 μm polyester film as carrier).According to the general understanding of the skilled worker, an "tackifier resin" is understood to mean an oligomeric or polymeric resin which increases the autoadhesion (tack, inherent tackiness) of the PSA compared with the PSA which does not comprise any tackifier resin but is otherwise identical.The use of tackifiers to increase the adhesive strengths of PSAs is known in principle. This effect is also obtained when between 1 and 10 wt.%, preferably 3 to 7 wt.%, more preferably 4 to 6 wt.% tackifier is added to the adhesive. These also contribute to improved flagging resistance.Tackifier resins having a softening point above 100° C. in accordance with ASTM E28-99 (2009) are preferred.Tackifiers, also referred to as tackifier resins, are in principle all known classes of substance suitable. Tackifiers are, for example, hydrocarbon resins (for example polymers based on unsaturated C 5- or C 9- monomers), terpene-phenol resins, polyterpene resins based on raw materials such as, for example, α- or β-pinene, aromatic resins such as coumarone-indene resins or resins based on styrene or α-methylstyrene such as rosin and its secondary products, for example disproportionated, dimerized or esterified rosin, for example reaction products with glycol, glycerol or pentaerythritol, just to name a few. Preference is given to resins without readily oxidizable double bonds, such as terpene-phenol resins, aromatic resins and, more preferably, resins which are prepared by hydrogenation, such as, for example, hydrogenated aromatic resins, hydrogenated polycyclopentadiene resins, hydrogenated rosin derivatives or hydrogenated polyterpene resins.Preference is given to resins based on terpenephenols and rosin esters.Particular preference is given to resins based on terpenephenols and rosin esters having a softening point above 100° C. in accordance with ASTM E28-99 (2009). The resins are advantageously used in dispersion form. They can thus be mixed with the polymer dispersion in a finely divided manner without problems.To further improve the cable compatibility, the adhesive formulation may optionally be blended with light stabilizers or primary and / or secondary aging inhibitors.Antioxidants which can be used are products based on sterically hindered phenols, phosphites, thiosynergists, sterically hindered amines or UV absorbers.Primary antioxidants such as, for example, Irganox 1010 or Irganox 254, alone or in combination with secondary antioxidants such as, for example, Irgafos TNPP or Irgafos 168, are preferably used.The antioxidants can be used in any combination with one another, mixtures of primary and secondary antioxidants in combination with light stabilizers such as, for example, Tinuvin 213 exhibiting particularly good anti-ageing effect.Anti-aging agents in which a primary antioxidant is combined with a secondary antioxidant in one molecule have proven to be especially advantageous. These antioxidants are cresol derivatives whose aromatic ring is substituted at any two different sites, preferably in the ortho- and meta-position to the OH group, by thioalkyl chains, it also being possible for the sulfur atom to be connected via one or more alkyl chains to the aromatic ring of the cresol building block. The number of carbon atoms between the aromatic and the sulfur atom may be between 1 and 10, preferably between 1 and 4. The number of carbon atoms of the alkyl side chain may be between 1 and 25, preferably between 6 and 16. Particular preference is given here to compounds of the type 4,6-bis(dodecylthiomethyl)-o-cresol, 4,6-bis(undecylthiomethyl)-o-cresol, 4,6-bis(decylthiomethyl)-o-cresol, 4,6-bis(nonylthiomethyl)-o-cresol or 4,6-bis(octylthiomethyl)-o-cresol. Such antioxidants are offered, for example, by Firm Ciba Geigy under the name Irganox 1726 or Irganox 1520.The amount of added anti-ageing agent or anti-ageing agent package should be in a range between 0.1 and 10 parts by weight, based on the mass of the dried polymer dispersion, preferably in a range between 0.2 and 5 parts by weight, based on the mass of the dried polymer dispersion, particularly preferably in a range between 0.5 and 3 parts by weight, based on the mass of the dried polymer dispersion.The dosage form is preferably in the form of a dispersion for particularly simple miscibility with the adhesive dispersion. Alternatively, liquid antioxidants can also be incorporated directly into the dispersion, wherein the incorporation step should also be followed by a service life for a few hours in order to enable homogeneous distribution in the dispersion or absorption of the antioxidant into the dispersion particles. A further alternative is the addition of an organic solution of the anti-ageing agents into the dispersion.Suitable concentrations are in the range from 0.1 to 8, preferably 0.1 to 5, parts by weight, based on the mass of the dried polymer dispersion.To improve the processing properties, the adhesive formulation may further be blended with customary process auxiliaries such as defoamers, devolatilizers, wetting agents or flow control agents. Suitable concentrations range from 0.1 up to 5 parts by weight based on the mass of the dried polymer dispersion.Sheet silicates or else sheet silicates or phyllosilicate are known as ion exchangers. Known sheet silicates are clay minerals such as montmorillonite, nontronite, hectorite, saponite, sauconite, beidellite, allevardite, illite, halloysite, attapulgite and / or sepiolite, and also disteardimonium hectorite. Hectorites are M 0,3+( Mg 2,7 Li 0,3)[ Si 4 O 10( OH) 2], M + mostly =Na +, monoclinic clay mineral belonging to the smectites and similar to montmorillonite.Unmodified sheet silicates can be activated according to the manufacturer with polar additives and high shear forces to develop their full effectiveness (for example, product information regarding Tixogel® VP-V (quaternium-90 bentonite) from Rockwood Additives Ltd. or regarding Bentone® 38 (organic derivative of a magnesium sheet silicate (hectorite)) from Rheox Inc.This activation of the sheet silicates, i.e. the conversion into a swellable form, takes place by treating the sheet silicates with a polar liquid and high shear forces. The sheet silicates obtained in this way are considered to be modified sheet silicates. Likewise, modified sheet silicates are also known under the name Laponite® Optigel® Laponite SL 25® Laponite S482® Laponite EP® Laponite RDS® Optigel CK® from Rockwood.Kaolin, also referred to as china clay, porcelain clay, white clay, china clay or, in pharmacy, as bolus alba or whistle clay, is a fine, iron-free, white rock which contains kaolinite, a weathering product of feldspar, as the main constituent. Other ingredients are various other clay minerals and undecomposed feldspar particles.Kaolin is used primarily in the production of paper and in the preparation of porcelain. In addition, bolus alba is used, inter alia, as a constituent of some powder bases and food is also addedKaolins are the two-layer silicates. Owing to their high layer charge, they are not swellable and are thus present as relatively coarse filler particles in the adhesive composition.Depending on the amount of kaolins added to the PSA, plasticizer migration can thus be slowed down or virtually prevented, and the plasticizer content in the PVC, especially in PVC cable insulations, can be prevented from slipping off into the region of the "brittle gap".The kaolins used in the PSAs of the invention are preferably added to the extent of from 3 to 7% by weight, more preferably to the extent of from 5 to 6% by weight. Kaolin can be added in solid form or likewise as an aqueous dispersion. Ultrafine types (HG 90 or Amazone Premium Slurry) are preferred.The shear viscosities of commercial dispersions are generally too low. To achieve the necessary shear viscosities, rheological additives, also called thickeners, are generally used.In principle, a distinction is made here between organic and inorganic rheology additives.The organic thickeners in turn split up into two essential principles of action: (i) the thickening of the aqueous phase, i.e. non-associating, and (ii) the association of thickener molecule with particles, in part with inclusion of the stabilizers (emulsifiers). Representatives of the first (i) group of substances are water-soluble polyacrylic acids and polyacrylic acids which form polyelectrolytes with a large hydrodynamic volume in the basic medium. The skilled person also briefly designates this as ASE (alkali swellable emulsion). They are distinguished by high static shear viscosities and high shear dilution. Another class of substances are the modified polysaccharides, in particular cellulose ethers such as carboxymethylcellulose, 2-hydroxyethylcellulose, carboxymethyl-2-hydroxyethylcellulose, methylcellulose, 2-hydroxyethylmethylcellulose, 2-hydroxyethylethylcellulose, 2-hydroxypropyl cellulose, 2-hydroxypropylmethylcellulose, 2-hydroxybutylmethylcellulose. In addition, this class of substances includes less widely used polysaccharides such as starch derivatives and special polyethers.The active group of the (ii) associative thickeners are in principle block copolymers having a water-soluble middle block and hydrophobic end blocks, the end blocks interacting with the particles or themselves and thus forming a space network with inclusion of the particles. Typical representatives are familiar to the skilled worker as HASE (hydrophobically modified alkali swellable emulsion), HEUR (hydrophobically modified ethylene oxide urethanes) or HMHEC (hydrophobically modified hydroxyethyl cellulose). In the case of the HASE thickeners, the central block is an ASE, the end blocks are usually long, hydrophobic alkyl chains coupled via polyethylene oxide bridges. In the case of HEUR, the water-soluble middle block is a polyurethane, in the case of HMHEC a 2-hydroxyethyl cellulose. The non-ionic HEUR and HMHEC in particular are largely insensitive to pH.Depending on the structure, the associative thickeners bring about more or less Newton's (shear rate-independent) or pseudoplastic (shear-liquifying) flow behavior. They sometimes also exhibit a thixotropic character, i.e. they exhibit not only a shear force dependence of the viscosity but also a time dependence.The inorganic thickeners are usually sheet silicates of natural or synthetic origin, examples being hectorites and smectites. In contact with water, the individual layers dissolve from one another. Due to different charges on surfaces and edges of the platelets, they form a space-filling card house structure at rest, resulting in high at rest shear viscosities up to yield points. Upon shear, the card house structure collapses and a marked drop in shear viscosity is observed. Depending on the charge, concentration and geometric dimensions of the platelets, the structure may take some time, so that it is also possible to achieve thixotropy with such inorganic thickeners.Some of the thickeners can be stirred directly into the adhesive dispersion or some of them are advantageously pre-diluted or pre-dispersed in water beforehand. Typical use concentrations are 0.1 to 5% by weight, based on the mass of the dried polymer dispersion.Suppliers of thickeners are, for example, OMG Borchers, Omya, Rheo-Byk Chemie, Dow Chemical Company, Evonik, Rockwood or Cointing Chemie.The addition preferably results in viscosities for the polymer dispersion at a shear rate of 10 s -1 of 10 Pa*s to 120 Pa*s and at a shear rate of 0.01 s -1 of 1200 Pa*s to 8000 Pa*s.Fillers (reinforcing or non-reinforcing) such as silicon dioxides (spherical, needle-shaped, platelet-shaped or irregular like the pyrogenic silicas), glass as solid or hollow spheres, microballoons, calcium carbonates, zinc oxides, titanium dioxides, aluminum oxides or aluminum oxide hydroxides can serve both for adjusting the processability and also the adhesive properties. Suitable concentrations range from 0.1 to 20 parts by weight based on the mass of the dried polymer dispersion.In a preferred embodiment, the adhesive formulation according to the invention has, according to ASTM D330, an adhesive force on steel of at least 2.0 N / cm (at a basis weight of the adhesive of about 100 g / m 2 on polyester fabric as carrier. With particular preference, the PSA has an adhesive force of greater than or equal to at least 2.5 N / cm (at a PSA basis weight of 90 g / m 2 on polyester fabric as carrier, preferably even at 80 g / m 2, with particular preference at 70 g / m 2 on polyester fabric as carrier). The PSA according to ASTM D330 particularly preferably has an adhesive force to steel of at least 5.0 N / cm (at a PSA basis weight of 90 g / m 2 on polyester fabric as carrier).The invention likewise relates to an adhesive tape having a pressure-sensitive adhesive which, according to LV 312, preferably has a rolling force of from 3.0 N / cm to 9.0 N / cm at 30 m / min, in particular from 4.0 N / cm to 6.0 N / cm at 30 m / min.The rolling force of the adhesive tapes of the invention can be adjusted specifically and exactly. This is of particular interest for cable adhesive tape tapes to be applied manually or mechanically. The target size for machine-mounted cable banding adhesive tapes is less than 6.0 N / cm at 30 m / min, and for manuals the values are 4.0 N / cm to 6.0 N / cm.Suitable supports are in principle all support materials, preference being given to textile supports and particularly preferably woven fabrics, in particular polyester woven fabrics.The backing material for the adhesive tape can be any known textile backing such as knits, laid scrims, tapes, braids, tuft fabrics, felts, woven fabrics (comprising plain weave, twill weave and atlas weave), knitted fabrics (comprising warp knit and knit) or nonwovens, where "nonwoven" is to be understood as meaning at least textile planar structures according to EN 29092 (1988), and stitch-bonded nonwovens and similar systems. Particularly advantageous is an adhesive tape in which a woven fabric, a nonwoven fabric or a knitted fabric is used as the carrier. Such supports are described, for example, in WO 2015 / 004190 A1.Spacer fabrics and knitted fabrics with lamination can also be used. Spacer fabrics of this type are disclosed in EP 0 071 212 B1. Spacer fabrics are mat-shaped layered bodies with a cover layer made of a fiber or filament fleece, a backing layer and individual or tufts of holding fibers present between these layers, which are needled through the particle layer distributed over the surface of the layered body and connect the cover layer and the backing layer to each other. As an additional, but not required feature, according to EP 0 071 212 B1, particles of inert rock, such as sand, gravel or the like, are present in the retaining fibers.The holding fibers needled through the particle layer hold the cover layer and the backing layer at a distance from each other and are bonded to the cover layer and the backing layer.Suitable nonwovens are particularly consolidated staple fiber nonwovens, but also filament, meltblown and spunbonded nonwovens, which are usually additionally to be consolidated. Mechanical, thermal and chemical consolidation are known as possible consolidation methods for nonwovens. If, in the case of mechanical consolidations, the fibers are usually held together purely mechanically by swirling of the individual fibers, by meshing of fiber bundles or by sewing in additional threads, adhesive (with binder) or cohesive (free of binder) fiber-fiber bonds can be achieved by thermal and chemical methods. These can be restricted exclusively or at least predominantly to fibre nodes with suitable formulation and process control, so that a stable, three-dimensional network is nevertheless formed in the fleece while maintaining the loose, open structure.Nonwovens have proven to be particularly advantageous which are consolidated in particular by oversewing with separate threads or by mesh.Such consolidated nonwovens are produced, for example, on stitch-bonded machines of the "Malimo" type from Karl Mayer, formerly Malimo, and can be obtained, inter alia, from Techtex GmbH. A mali batt is characterized in that a cross-fiber batt is consolidated by forming stitches of fibers of the batt. As the support, a kunit or multiknit nonwoven fabric can be further used. A spun-knit nonwoven fabric is characterized in that it results from the processing of a longitudinally oriented nonwoven fabric into a planar structure which has stitches on one side and stitches on the other, but has neither threads nor prefabricated planar structures. Such a nonwoven is also produced for a long time, for example on stitch-bonded machines of the "Malimo" type from Karl Mayer. A further characteristic feature of this fleece is that it can absorb high tensile forces in the longitudinal direction as a longitudinal fibre fleece. A multiknit nonwoven is characterized in comparison with the kunit nonwoven in that the nonwoven experiences consolidation by puncturing on both sides with needles both on the top side and on the bottom side. As a starting product for a multiknit, one or two unidirectionally meshed nonwoven pile fabrics produced by the Kunit process are generally used. In the end product, both nonwoven fabric top sides are formed into a closed surface by fiber mesh and are connected to one another by virtually perpendicular fibers. The additional introducible of further pierceable sheet materials and / or spreadable media is provided.Finally, stitch-bonded webs are also suitable as a precursor for forming a cover according to the invention and an adhesive tape according to the invention. A stitched nonwoven is formed from a nonwoven material having a plurality of seams running parallel to one another. These seams are formed by sewing in or stitch-knitting continuous textile threads. For this type of nonwoven (also known as maliwatt), stitch-bonded machines of the "Malimo" type from Karl Mayer are known.Needle-punched fleeces are also particularly suitable. In needle punch fleece, a fibrous web becomes a sheet structure with the aid of barbed needles. By alternating puncturing and pulling out of the needles, the material is consolidated on a needle bar, whereby the individual fibers become entangled to form a solid sheet structure. The number and embodiment of the needling points (needle shape, penetration depth, double-sided needling) decide on the strength and strength of the fiber structures, which are usually light, air-permeable and elastic.Furthermore, a staple fiber fleece which is preconsolidated in the first step by mechanical processing or which is a wet fleece which has been laid hydrodynamically, wherein between 2 wt. % and 50 wt. % of the fibers of the fleece are fusible fibers, in particular between 5 wt. % and 40 wt. % of the fibers of the fleece.Such a nonwoven is characterized in that the fibers are wet laid or, for example, a staple fiber nonwoven is preconsolidated by forming meshes of fibers of the nonwoven by needle punching, sewing, air and / or water jet processing. In a second step, heat setting takes place, the strength of the nonwoven being increased again by the melting or fusing of the fusible fibers.For the use according to the invention of nonwovens, the adhesive consolidation of mechanically preconsolidated or wet-laid nonwovens is of particular interest, it being possible for this to take place via addition of binder in solid, liquid, foamed or pasty form. In principle dosage forms are widely possible, for example solid binders as powders for showering in, as a film or as a grid or in the form of binding fibers. Liquid binders can be applied dissolved in water or organic solvents or as a dispersion. For adhesive bonding, binder dispersions are predominantly chosen: thermosetting plastics in the form of phenol or melamine resin dispersions, elastomers as dispersions of natural or synthetic rubbers or mostly dispersions of thermoplastics such as acrylates, vinyl acetates, polyurethanes, styrene-butadiene systems, PVC and the like and copolymers thereof. In the normal case, these are anionic or non-ionogenically stabilized dispersions, but cationic dispersions may also be advantageous in special cases.The manner of applying the binder can be carried out according to the prior art and can be found, for example, in standard works of coating or of nonwoven technology such as "Nonwovens" (Georg Thieme Verlag, Stuttgart, 1982) or "Textile technology-Nonwoven Production" (Arguerenzer Klebsige Textil, Eschborn, 1996).For mechanically presolidified nonwovens which already have sufficient bond strength, one-sided spray application of a binder is appropriate in order to specifically change surface properties.In addition to the economy of handling the binder, the energy requirement for drying is also significantly reduced in this type of procedure. Since no squeezing rollers are required and the dispersions predominantly remain in the upper region of the nonwoven, undesired hardening and stiffening of the nonwoven can be largely prevented.For sufficient adhesive consolidation of the nonwoven carrier, binder in the order of magnitude of from 1% to 50%, in particular from 3% to 20%, based on the weight of the nonwoven is generally to be added.The binder can be added already during nonwoven production, during mechanical presolidification or else in a separate process step, it being possible for this process to be carried out in-line or off-line. After the addition of binder, a state must be temporarily created for the binder in which it becomes adhesive and adhesively connects the fibers-this can be achieved during the drying of dispersions, for example, but also by heating, with further possible variations being provided by applying extensive or partial pressure. The binder can be activated in known drying channels, but with a suitable choice of binder it can also be activated by means of infrared radiation, UV radiation, ultrasound, radio-frequency radiation or the like. For the later end use, it is expedient, but not absolutely necessary, for the binder to have lost its tackiness after the end of the nonwoven production process. It is advantageous that volatile components such as fiber auxiliaries are removed by thermal treatment and a nonwoven with favorable fogging values is thus formed, so that when a low-fogging adhesive is used, an adhesive tape with particularly favorable fogging values can be produced, and the covering also thus exhibits a very low fogging value.Fogging (see DIN 75201:2011-11) is understood to mean the effect that low molecular mass compounds can outgas from the adhesive tapes and condense on cold parts under unfavourable conditions. This can impair the view through the windshield, for example.A further special form of adhesive bonding is that the binder is activated by partial dissolution or partial swelling. In principle, the fibers themselves or mixed-in special fibers can also assume the function of the binder. However, since solvents of this type are problematic or problematic in terms of their handling from an environmental point of view for most polymeric fibers, this method is rather rarely used.Advantageously and at least in regions, the carrier can have a smooth-ground surface on one or both sides, preferably in each case a smooth-ground surface over the entire surface. The smooth-ground surface may be machined, as is explained in detail, for example, in EP 1 448 744 A1.Furthermore, the support can be calendared in a rolling mill for compaction. Preferably, the two rollers run in opposite directions and at the same circumferential speed, so that the carrier is pressed and compacted.If the peripheral speed of the rollers differs, the support is additionally ground smooth.The support is preferably a woven fabric, more preferably a polyester woven fabric. Particularly preferred fabrics are constructed as follows:• The number of filaments in the chain is from 10 to 60 / cm• The number of filaments in the weft is from 10 to 40 / cm• the warp threads have a yarn weight of between 40 and 400 dtex, in particular between 44 and 330 dtex, particularly preferably 167 dtex• the weft threads have a yarn weight of between 40 and 660 dtex, in particular between 44 and 400 dtex, particularly preferably of 167 dtexAccording to a further advantageous embodiment of the invention, the number of threads in the chain is 40 to 50 / cm, preferably 44 / cm.According to a further advantageous embodiment of the invention, the number of threads in the weft is 18 to 22 / cm, preferably 20 / cm.According to a further advantageous embodiment of the invention, the fabric is a polyester fabric. Further possibilities are polyamide fabric, viscose fabric and / or a mixed fabric made of the materials mentioned.More preferably, the thickness of the fabric is not more than 300 μm, particularly preferably 170 to 230 μm, very particularly preferably 190 to 210 μm.According to a further advantageous embodiment of the invention, the carrier has a weight per unit area of up to 200 g / m 2 preferably 100 to 150 g / m 2.The starting materials for the backing material for the adhesive tape are, in particular, (chemical) fibers (staple fiber or continuous filament) made of synthetic polymers, also referred to as synthetic fibers, made of polyester, polyamide, polyimide, aramid, polyolefin, polyacrylonitrile or glass, (chemical) fibers made of natural polymers such as cellulosic fibers (viscose, modal, lyocell, cupro, acetate, triacetate, cellulon), such as rubber fibers, such as vegetable egg white fibers and / or such as animal egg white fibers and / or natural fibers made of cotton, sisal, flax, silk, hemp, linen, coco or wool. However, the present invention is not limited to the materials mentioned, but rather, it is possible, as recognized by the person skilled in the art without having to be carried out by the inventor, to use a large number of further fibers for producing the carrier.Furthermore, yarns made from the indicated fibers are also suitable.In fabrics or laid scrims, individual filaments can be made from a mixed yarn, i.e., they can have synthetic and natural constituents. As a rule, however, the warp threads and the weft threads are each embodied in a single type.The warp threads and / or the weft threads can each consist only of synthetic threads or only of threads of natural raw materials, i.e. be of the same type.The yarns or threads of the fabrics may be filaments. For the purposes of this invention, a filament is understood to mean a bundle of parallel, straight individual fibers / individual filaments, also often referred to in the literature as multifilament. If appropriate, this fiber bundle can be consolidated by twisting itself, then the filaments are referred to as spun or twisted. Alternatively, the fiber bundle can be consolidated by swirling with compressed air or water jet. In the following, only the term filament is used in general terms for all these embodiments.The filament may be textured or smooth and point-consolidated or unconsolidated.Polyester is preferably used as material for the textile carrier because of the excellent ageing resistance and the excellent media resistance to chemicals and operating agents such as oil, petrol, antifreeze and the like. Furthermore, polyester has the advantage that it leads to a very abrasion-resistant and temperature-resistant carrier, which is of particular importance for the specific application for bundling cables in automobiles and, for example, in the engine compartment. According to one embodiment of the invention, a PET fleece or a PET fabric is used as carrier.Advantageously, the basis weight of the textile carrier is between 30 g / m 2 and 300 g / m 2 further advantageously between 50 g / m 2 and 200 g / m 2, particularly advantageously between 50 g / m 2 and 150 g / m 2, very particularly advantageously between 70 g / m 2 and 130 g / m 2.More preferably, the textile supports have a flexural rigidity in the range from 0 to 30 mN / 60 mm as raw support (MD, machine direction), optionally from 2 to 30 mN / 60 mm as raw support (MD), from which very good flagging-free products are obtained with good rollability with low surface application to acrylate dispersions.According to a preferred embodiment of the invention, the adhesive composition, after application to the backing, has penetrated into the backing to an extent of more than 10%, preferably more than 25%, more preferably more than 50%. A numerical value of 25% for example means that the adhesive has penetrated over a layer thickness of 25% of the thickness of the textile carrier, i.e. in the case of a carrier having a thickness of 100 μm over a layer thickness of 25 μm within the carrier, namely beginning from the surface of the carrier on which the adhesive is coated and in the perpendicular direction to the plane spanned by the longitudinal or transverse direction.A backing material for the adhesive tape which is composed of paper, of a laminate, of a film (for example PP, PE, PET, PA, PU), of foam or of a foamed film is also suitable.These non-textile sheet materials are particularly suitable when special requirements require such a modification of the invention. Films are usually thinner, for example compared with textiles, offer additional protection against the penetration of chemicals and processing agents such as oil, gasoline, antifreeze agents and the like into the actual cable region by the closed layer and can be largely matched to the requirements by suitable selection of the material: flexible and elastic sheathings can be produced, for example, with polyurethanes, copolymers of polyolefins, and good abrasion and temperature resistances are achieved with polyesters and polyamides.Foams or foamed films, on the other hand, have the property of greater space filling and good noise attenuation-if a cable harness is laid, for example, in a duct-like or tunnel-like region in the vehicle, disruptive rattling and vibration can be prevented from the outset by a sheathing strip suitable in terms of thickness and attenuation.A laminate of the textile carrier and film or plastic layer applied at least on one side of the textile carrier is preferred. Furthermore, films or plastic layers can be applied to the upper and lower sides of the textile carrier.The application can be effected by lamination or by extrusion.Preference is given to a variant in which textile support is provided on the underside with a film which is provided on the other side with a pressure-sensitive adhesive.Suitable film or plastic materials are films such as, for example, PP, PE, polyester, PA, PU or PVC. The films themselves can in turn consist of a plurality of individual layers, for example of layers coextruded to form a film.Preferred are polyolefins, but copolymers of ethylene and polar monomers such as styrene, vinyl acetate, methyl methacrylate, butyl acrylate or acrylic acid are also included. It may be a homopolymer such as HDPE, LDPE, MDPE or a copolymer of ethylene with another olefin such as propene, butene, hexene or octene (for example LLDPE, VLDDE). Also suitable are polypropylenes (for example polypropylene homopolymers, polypropylene random copolymers or polypropylene block copolymers).The film preferably has a thickness of 12 μm to 100 μm, more preferably 28 to 50 μm, in particular 35 μm.The film may be colored and / or transparent.Finally, the adhesive tape may have a covering material with which the one or the two adhesive layers are covered until use. All materials detailed above are also suitable as cover materials.Preferably, a non-linting material is used, such as a plastic film or a well-sized, long-fiber paper.If it is desired that the adhesive tape described should have a flame retardancy of the nature, this can be achieved by adding flame retardants to the backing and / or to the adhesive composition. These may be organobromo compounds, if required with synergists such as antimony trioxide, although red phosphorus, organophosphorous, mineral or intumescent compounds such as ammonium polyphosphate are preferably used alone or in conjunction with synergists with respect to the absence of halogen in the adhesive tape.The adhesive application, based on the adhesive tape surface, is preferably between 40 and 160 g / m 2, preferably between 60 and 130 g / m 2, more preferably between 80 and 100 g / m 2.The general term "adhesive tape" in the sense of this invention comprises all planar structures such as films or film sections extended in two dimensions, tapes with extended length and limited width, tape sections and the like, ultimately also diecuts or labels.The adhesive tape thus has a longitudinal extent and a width extent. The adhesive tape also has a thickness running perpendicular to both expansions, the width expansion and longitudinal expansion being many times greater than the thickness. The thickness is as uniform as possible over the entire area extent of the adhesive tape determined by length and width, preferably exactly the same.The adhesive tape is present in particular in web form. A path is understood to mean an object whose length is many times greater than the width and the width is designed to remain approximately preferably exactly the same along the entire length.The adhesive tape can be produced in the form of a roll, i.e. rolled onto itself in the form of an Archimedes spiral.A backing lacquer can be applied to the back of the adhesive tape in order to advantageously influence the rolling properties of the adhesive tape wound to form the Archimedes spiral. This reverse-side lacquer can be provided for this purpose with silicone or fluorosilicone compounds and with polyvinylstearylcarbamate, polyethyleneiminestearylcarbamide or organofluorine compounds as abhesive substances.The adhesive may be applied in the longitudinal direction of the adhesive tape in the form of a strip which has a smaller width than the backing of the adhesive tape.Depending on the case of use, a plurality of parallel strips of the adhesive can also be coated on the carrier material.The position of the strip on the carrier is freely selectable, an arrangement directly at one of the edges of the carrier being preferred.The adhesive is preferably applied over the full area of the backing.On the adhesive coating of the carrier, at least one strip of a cover can be provided, which strip or strips extend in the longitudinal direction of the adhesive tape and which strip or strips cover between 20% and 90% of the adhesive coating.Preferably, the strip covers a total of between 50% and 80% of the adhesive coating. The degree of coverage is selected depending on the application and the diameter of the cable set.The percentages given are based on the width of the strips of the cover with respect to the width of the support.According to a preferred embodiment of the invention, exactly one strip of the cover is present on the adhesive coating.The position of the strip on the adhesive coating is freely selectable, an arrangement directly on one of the longitudinal edges of the carrier being preferred. This results in an adhesive strip extending in the longitudinal direction of the adhesive tape, which ends with the other longitudinal edge of the carrier.If the adhesive tape is used to sheath a cable harness by guiding the adhesive tape around the cable harness in a helical movement, the cable harness can be sheathed in such a way that the adhesive composition of the adhesive tape is bonded only to the adhesive tape itself, while the article does not come into contact with any adhesive.The thus sheathed wire harness has very high flexibility due to the lack of fixation of the wires by any adhesive. Its bending ability during installation--especially also in narrow passages or sharp bends--is thus significantly increased.If a certain fixing of the adhesive tape on the material is desired, the sheathing can be effected in such a way that one part of the adhesive tape is bonded to the adhesive tape itself and another part is bonded to the material.According to another advantageous embodiment, the strip is applied centrally on the adhesive coating, so that two adhesive strips extending at the longitudinal edges of the carrier in the longitudinal direction of the adhesive tape are produced.For the secure and economic application of the adhesive tape in said helical movement around the cable harness and against the resulting protective covering slipping, the two adhesive strips present in each case on the longitudinal edges of the adhesive tape are advantageous, in particular if one, which is usually narrower than the second strip, serves as a fixing aid and the second, wider strip serves as a closure. In this way, the adhesive tape is bonded to the cable in such a way that the cable set is secured against slipping and nevertheless is of flexible design.In addition, there are embodiments in which more than one strip of the cover is applied to the adhesive coating. If only one strip is mentioned, the person skilled in the art would understand that a plurality of strips can also cover the adhesive coating at the same time.The production process of the adhesive tape according to the invention is exhausted in the coating of the carrier directly with the dispersion in one or more operations carried out successively. In the case of textile supports, the untreated textile can be coated directly or by the transfer process. Alternatively, the textile can be pretreated with a coating (with any desired film-forming substance composed of solution, dispersion, melt and / or radiation-curing), in order then to be provided with the PSA directly or in the transfer process in a subsequent working step.The coating units used are the customary ones: wire doctor, doctor blade, roll coating, die coating, double chamber doctor blade, multiple cascade die.Owing to the positive properties described, the adhesive tape can be used outstandingly for insulating and winding wires or cables.The adhesive tape is preferably used for sheathing elongate material, such as in particular cable sets, wherein the adhesive tape is guided around the elongate material in a helical movement. The shape of a helix (also called a screw, helical line, cylindrical spiral or helix is obtained; helix is a curve which wraps around the jacket of a cylinder with a constant gradient).In one variant, the elongate material is enveloped in the axial direction by the adhesive tape. The winding of a cable harness with the described adhesive tape is not, as usual, helical, but rather in such a way that, during the winding, a longitudinal axis of the tape is aligned substantially parallel to the direction of extension of the cable harness. Viewed in cross section, the adhesive tape is located around the cable harness in the form of an Archimedes spiral. This type of winding is also called "turning-in of the cable harness".The invention also includes a sheathed elongate material, such as in particular a cable set, sheathed with an adhesive tape according to the invention, and a vehicle comprising such a sheathed elongate material.According to one embodiment of the invention, the elongate material is a cable harness which comprises a bundle of a plurality of cables such as 3 to 1000 cables, preferably 10 to 500 cables, in particular between 50 and 300 cables.Owing to the excellent suitability of the adhesive tape, it can be used in a casing which consists of a covering in which the self-adhesive adhesive tape is present at least in one edge region of the covering, which adhesive tape is bonded to the covering in such a way that the adhesive tape extends over one of the longitudinal edges of the covering, and more particularly preferably in an edge region which is narrow in comparison with the width of the covering.Such a product and optimized embodiments thereof are disclosed in EP 1 312 097 A1. EP 1 300 452 A2, DE 102 29 527 A1 and WO 2006 / 108871 A1 describe further developments for which the adhesive tape of the invention is likewise very well suitable. The adhesive tape of the invention can likewise be used in a process as disclosed in EP 1 367 608 A2.Finally, EP 1 315 781 A1 and DE 103 29 994 A1 describe embodiments of adhesive tapes of the type also possible for the adhesive tape of the invention.More preferably, the adhesive tape does not destroy the same when bonded to cables with PVC sheathing and to cables with polyolefin sheathing if a composite of cables and adhesive tape according to LV 312 is stored at temperatures above 105° C. and up to 3000 h and then the cables are bent around a mandrel.The skilled worker would have expected that, when conventional fillers such as kaolin are used, marked losses in the bond strength behavior would occur. This is surprising but not the case.The use according to the invention makes it possible for the content of plasticizers in each case in % by weight in cable coverings after at least 2000 h to still be at least 60% of the original content in the cable covering, in particular measured under or under the conditions according to LV 312.What is preferably meant is the content of plasticizers in PVC cable coverings, in particular the plasticizers comprising TOTM, DOP (dioctyl phthalate, di-2-ethylhexyl phthalate), DINP (diisononyl phthalate), TOTM (trioctyl trimellitate), DIDP (diisodecyl phthalate), triethyl citrate or adipic acid-based plasticizers such as diethylhexyl adipate and diethyloctyl adipate. Particularly preferably, the content of plasticizers in cable coverings sheathed with the cable tapes of the invention is, after 2000 h, greater than or equal to 66%, preferably greater than or equal to 70%, particularly preferably greater than or equal to 80%, it being further preferred if the content after 2500 h or after 3000 h in each case independently still has at least one content of 60% of the original content of plasticizers.As the examples show, of the known sheet silicates, surprisingly and unpredictable to the skilled person, only kaolin is suitable. Other clay minerals such as montmorillonite, nontronite, hectorite, saponite, sauconite, beidellite, allevardite, illite, halloysite, attapulgite and / or sepiolite, as well as disteardimonium hectorite. Hectorites are M 0,3+( Mg 2,7 Li 0,3)[ Si 4 O 10( OH) 2], M + mostly =Na +, monoclinic clay mineral belonging to the smectites and similar to montmorillonite lead to failure, and modified three-layer sheet silicates or, for example, illites, smectites or vermiculites are also unsuitable, although these are shown as particularly suitable in DE 10 2014 223 451 A1.The adhesive tape is to be explained in more detail below with reference to a plurality of figures without wishing to cause any restriction whatever kind of restriction.They show FIG. 1 shows the adhesive tape in lateral section, FIG. 2 shows a detail of a cable harness which is composed of a bundle of individual cables and which is sheathed with the adhesive tape according to the invention, and FIG. 3 shows an advantageous application of the adhesive tape.FIG. 1 shows a cross-sectional view (cross section) of the adhesive tape which consists of a fabric backing 1 to which a layer of a self-adhesive coating 2 based on an acrylate dispersion is applied on one side.The adhesive has penetrated 20% into the carrier, which brings about optimum anchoring and at the same time improves the hand tearability of the carrier.FIG. 2 shows a detail of a cable harness which is composed of a bundle of individual cables 7 and which is sheathed with the adhesive tape 11 according to the invention. The adhesive tape is guided around the cable harness in a helical movement.The section of the cable harness shown shows two windings I and II of the adhesive tape. Further windings would extend to the left; these are not shown here.In a further embodiment for a sheathing, two tapes 60, 70 according to the invention equipped with an adhesive are laminated to one another with their adhesives added (preferably by 50% in each case), so that a product is obtained, as is illustrated in FIG. 3.ExamplesOutline of the ExamplesThe adhesive tape of the invention is described below in a preferred embodiment by way of example, without wishing to subject the invention to any restriction.Comparative examples are also given in which unsuitable adhesive tapes are shown.To illustrate the invention, exemplary adhesive tapes were prepared according to the following scheme:The pressure sensitive adhesive dispersions were adjusted to a viscosity of about 1000 Pa*s at a shear rate of 0.01 s -1 by stirring in a polyurethane associative thickener (Borchigel 0625, OMG Borchers) (measured with cone / plate geometry in rotation mode with a DSRC 200 N rheometer from Rheometric Scientific).The nonwoven fabric is a stitch-bonded nonwoven fabric of the Maliwatt type with a weight per unit area of 55 g / m 2, consisting of PET fibers of length 64 mm and thickness 3 d and a PET sewing thread of thickness 50 dtex sewn with (22 threads per inch (corresponding to 9 threads / centimeter of nonwoven width).The maliwatt was coated with the thickened exemplary adhesive dispersion using a film-drawing device in such a way that, after drying in a circulating air oven at 85° C. for 5 minutes, an adhesive mass surface weight of 90 g / m 2 resulted.Judgment criteriaPerformance of the TestsUnless expressly stated otherwise, the measurements are measured under a test climate of 23±1° C. and 50±5% rel. The drying is carried out under moist air.Measurement of Flagging Resistance by the SWAT MethodThe SWAT test is used to examine the flagging behavior of adhesive tapes after they have been wound spirally around a cable.The test is carried out under standard climate (23±1° C. and 50±5% rel. Humidity) and 40° C. The elevated temperature simulates the more difficult requirements during transport.For the test, a 19 mm wide adhesive tape is used. This is wound manually around an ETFE (ethylene tetrafluoroethylene) sheathed cable having a diameter of 1 mm four times (1440°) without additional pressure. The adhesive tape is cut with scissors.It is assumed that an average 5 mm long flag remains if the adhesive tape end is not pressed down.A total of seven windings are made around the cable.The flags are measured after three days, ten days and 30 days under standard climate with the aid of a ruler. This is shown in FIG. 4. the absolute flagging value is calculated by subtracting 5 mm from the actually measured length of the flag.In FIG. 4, the flagging value is therefore 23 mm (28 mm-5 mm).The flagging value indicated as a result is the result of the average value of the flagging values of the seven windings. Analogously, the test is carried out at 40° C. in conventional drying cabinets.The adhesive tape of the invention is evaluated below at 40° C. in a drying cabinet by the SWAT method specified.A value of ≤10 mm is considered a lower limit value for resistance to deflagrating. Mean values <5 are given the rating 2, mean values from 5 to 10 are given the rating 1 and mean values >10 are given the rating 0.The measurement is carried out analogously to the measurement method specified in LV 312. The measurements are carried out at 105° C. (T 2) in each case.Measurement of AdhesivenessBond strength to steel was measured according to ASTM D330.Rolling forceMeasurement of the rolling force according to LV 312 at a take-off speed of 30 m / min.Softening pointThe softening point is understood to mean the temperature (or the temperature range) at which amorphous or partially crystalline polymers transition from glassy, hard-elastic into a soft state. The reduction in the hardness of corresponding substances at the softening point is made clear, for example, by a body placed on a substance sample under load being pressed into the latter when the softening point is reached. The softening point is fundamentally above the glass transition temperature, but in most polymers it is well below the temperature at which they completely change into the liquid state. The softening point is measured according to ASTM E28-99 (2009), known as Ring & Ball Methodology (R&B).Measurement of Glass Transition TemperaturesThe glass transition temperatures were determined on a DSC 204 F1 "Phönix" dynamic differential calorimeter instrument from Netzsch, Germany, in 25 μl aluminum crucibles with a perforated lid under a nitrogen atmosphere (20 ml / min gas flow). The sample weight was 8±1 mg. The samples were measured twice from -140° C. to 200° C. at a heating rate of 10 K / min. The 2nd heating curve was evaluated. The method is based on DIN 53765:1994-03.Dynamic Viscosity MeasurementViscosity measurement is carried out with a rheometer of the type DSR 200 N from Rheometric Scientific at room temperature and in the rotation mode at a shear rate of 0.01 s -1 with a cone-plate system with a diameter of 25 mm, alternatively with a shear rate of 10 s -1.Gel ValueThe gel value is determined by soxhlet extraction, by means of which constituents which are soluble in continuous extraction are extracted from polymers. In the case of the determination of the gel value of (aqueous) polyacrylate pressure sensitive adhesives, the soluble fractions of a polymer-the so-called sol-from the insoluble fractions-the so-called gel-are extracted by a suitable solvent, such as tetrahydrofuran, for example. Preparation: The composition to be extracted is applied to siliconized release paper in a thin film-generally 120 μm in layer thickness-and dried at 80° C. for about 12 h (circulating air drying cabinet). The films are stored in a desiccator over drying agents. The 603 Whatman extraction sleeves are dried at 80° C. for 12 h, the empty weight of the sleeves is determined and stored in the desiccator until use.Gel Value DeterminationAbout 1 g of PSA is weighed into extraction sleeve. A 100 ml round bottom flask of the Soxhlet apparatus is charged with 60 ml of tetrahydrofuran and heated to boiling. THF vapors rise through the vapor tube of the Soxhlet apparatus and condense in the condenser, and THF drips into the extraction sleeve and extracts sol fraction. During the course of the extraction, the THF I with the extracted sol runs back into the flask. Dissolved sol accumulates increasingly in the flask. After 72 h of continuous extraction, the sol is completely dissolved in THF. The extraction sleeve is then removed-after cooling the apparatus to room temperature-and dried at 80° C. for 12 hours. The sleeves are stored in the desiccator until constant in mass and are subsequently weighed out. The gel value of the polymer is calculated from the following formula:m 1: mass extraction sleeve, emptym 2: mass extraction sleeve+polymerm 3: mass extraction sleeve+gelFlexural rigidityThe flexural rigidity is determined using a KWS basic 2000mN softometer (Wolf Messtechnik GmbH). (MD) stands for machine direction, i.e. the flexural rigidity is determined in the machine direction.The criteria for an adhesive tape suitable for use, which is particularly suitable for wrapping cables, are• Bond strength to steel [N / cm]• Rolling force (30 m / min) [N / cm]• Cable compatibility [h]Five ranges are defined for each of these criteria, into which the results are sorted.Furthermore, it is determined which regions define a very good or good behavior, which regions characterize an acceptable behavior and which regions characterize an unacceptable behavior. The following requirements apply here for the four properties:Bond strength to steelRegions 1 and 2Ranges 3 to 5Rolling forceRegions 1 and 2Ranges 3 to 5Cable CompatibilityRegion 1Regions 2 and 3To illustrate the concept of the invention, polymer dispersions having the following comonomer composition were tested:Polymer 1 (P1)4546×54××××Polymer 2 (P2)98××2×××××Polymer 3 (P3)51××××41×44Polymer 4 (P4)414181,2××1,98×2-EHA 2-ethylhexyl acrylate BA n-butyl acrylate MMA methyl methacrylate AA acrylic acid AcN acrylonitrile EA. Ethylhexyl acrylate HEA 2-hydroxyethyl acrylate VAc vinyl acetateThese polymers are blended with different resins in which the softening temperature is given.Resin 1 (H1)Snowtack 100G ERosin ester resin95,5Resin 2 (H2)Snowtack 110X EPentaerythritol ester of rosin104,8Resin 3 (H3)Snowtack TP 600G ETerpene phenol92,8Resin 4 (H4)Snowtack FH 95G Efully hydrogenated rosin ester901P1, P1, 82H1, H1, 153, KaolinTubivis DL60041,934711432P2, 88H2, 012, KaolinBorchi Gel 062563.033654313P3, P3, 94H3, H3, 60, KaolinRheo-Byk 42512,8110243149055, KaolinEvo Dot VD28,9131444159190, KaolinBorchi Gel 0625 + Evo Dot VD240,7368523268983, KaolinTubivis DL60041,2347112178965, KaolinRheovis PU1191+ Rhovis AS113053,6391711188848, KaolinBorchi Gel 0625 + Evo Dot VD246,6359411199145, KaolinBorchi Gel 0625 + Evo Dot VD2121,59319141109055, Laponite SL-25Byk 425 42532,79221551119154, SmectiteRheovis PU1191+ Rhovis AS113039,32976321Tubivis DL600 (CHT R. Beiell): Thickener based on acrylic acid Borchigel 0625 (OMG Borchers): Polyurethane associative thickener Rheo-Byk 425 (Byk): Thickener based on a urea-modified polyurethaneEvo Dot VD2 (DyStar Colours Germany): Thickener based on a polyacrylic acid derivative Rheovis PU1191 (BASF): Polyurethane associative thickenerRheovis AS1130 (BASF): Thickener based on an acrylate copolymerAs the examples show, the use of 1 to 10% by weight of kaolin (not Laponite SL-25 or Smectite!) optimizes the rolling force and surprisingly leads to a higher bond strength. The amount of resin can thus be kept small by the positive adhesive force effect of kaolin, namely at less than 10% by weight. The cable compatibility is thus ensured.Examples 6 to 8 show the best compromise in terms of product properties. Examples 1 to 5 and 9 to 11 are comparative examples.

Claims

Adhesive tape (11, 60, 70), in particular for wrapping cables (7), comprising a textile carrier (1) and a pressure-sensitive adhesive applied to at least one side of the carrier (1) in the form of a thickened dried polymer dispersion (2), wherein the unthickened dried polymer dispersion (2) comprises polymers which are constructed or obtainable from: (I) a) monomeric acrylates to an extent of 30.0 to 88.0, wt% and 0.0 to 2.0 wt% of a di- or polyfunctional monomer, particularly preferably to an extent of 0.0 to 1.0 wt% of a di- or polyfunctional monomer, b) ethylenically unsaturated comonomers to an extent of 10.0 to 48.0 wt% selected from at least one ethylenically unsaturated monofunctional monomer or a mixture of these and from one or more ethylenically unsaturated monomers having an acid or acid anhydride function, where the latter make up from 0.0 to 10.0% by weight of the maximum 10% by weight, c) from 1.0 to 10.0% by weight of tackifier, d) from 1.0 to 10.0% by weight of kaolin or (II) a) from monomeric acrylates to 68.0 to 97.0% by weight and from 0.0 to 2.0% by weight of a di- or polyfunctional monomer, more preferably from 0.0 to 1.0% by weight of a di- or polyfunctional monomer, b) from 1.0 to 10.0% by weight of ethylenically unsaturated comonomers selected from at least one ethylenically unsaturated monofunctional monomer or a mixture of these and from one or more ethylenically unsaturated monomers having an acid or acid anhydride function, the latter making up from 0.0 to 10.0% by weight of the maximum 10% by weight, c) 1.0 to 10.0 wt % tackifier d) 1.0 to 10.0 wt % kaolin, wherein the polymer dispersion (2) is prepared by reacting the monomers according to (I) and (II) in an emulsion polymerization, wherein an organic rheology additive is added to the polymer dispersion (2), such that the polymer dispersion (2) before drying has a viscosity of 40 Pa*s up to 100 Pa*s, preferably 50 Pa*s up to 80 Pa*s at a shear rate of 10 / s and a viscosity of 3000 Pa*s up to 8000 Pa*s, preferably 4000 Pa*s up to 6000 Pa*s at a shear rate of 0.01 / s.Adhesive tape (11, 60, 70) according to Claim 1, characterized in that the monomeric acrylates are selected from alkyl (meth)acrylates such as n-butyl acrylate and 2-ethylhexyl acrylate, preferably C 1- to C 20- alkyl (meth)acrylates, C 1- to C 10- hydroxyalkyl (meth)acrylates such as, in particular, hydroxyethyl or hydroxypropyl (meth)acrylate, acid amides such as acrylamide or methacrylamide, and mixtures of two or more of the monomers.Adhesive tape (11, 60, 70) according to either of Claims 1 and 2, characterized in that the ethylenically unsaturated comonomers are selected from ethylene, aromatic vinyl monomers such as styrene, α-methylstyrene and vinyltoluene, divinylbenzene, vinyl esters of carboxylic acids containing up to 20 carbon atoms, such as vinyl laurate, vinyl ethers of alcohols containing up to 10 carbon atoms, such as vinyl methyl ether or vinyl isobutyl ether, vinyl halides, such as vinyl chloride or vinylidene dichloride, itaconic acid, maleic acid, fumaric acid and / or maleic anhydride, acrylonitrile and / or methacrylonitrile, unsaturated hydrocarbons having 3 to 8 carbon atoms, such as propene, butadiene, isoprene, 1-hexene or 1-octene, and mixtures of two or more comonomers.Adhesive tape (11, 60, 70) according to at least one of Claims 1 to 3, characterized in that the ethylenically unsaturated monomers having an acid or acid anhydride function are selected from the group of acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid and / or maleic anhydride.Adhesive tape (11, 60, 70) according to at least one of the preceding claims, characterized in that the acrylate dispersion (2) has a gel value of greater than or equal to 40%, preferably greater than or equal to 45%, determined by soxhlet extractionAdhesive tape (11, 60, 70) according to at least one of the preceding claims, characterized in that 3 to 7% by weight, more preferably 5 to 6% by weight, of kaolin are added to the adhesive.Adhesive tape (11, 60, 70) according to at least one of the preceding claims, characterized in that 3 to 8% by weight, more preferably 4 to 6% by weight, of tackifier is added to the adhesive.Adhesive tape (11, 60, 70) according to at least one of the preceding claims, characterized in that the glass transition temperature of the pressure-sensitive adhesive is below +15 °C (determined by DSC (differential scanning calorimetry) in accordance with DIN 53765 at a heating rate of 10 K / min).Adhesive tape (11, 60, 70) according to at least one of the preceding claims, characterized in that the ASTM D3330 PSA has an adhesive force to steel of at least 2.0 N / cm (at a basis weight of the adhesive of 100 g / m 2 to polyester fabric as backing (1)) and / or the PSA has a rolling force of from 3.0 N / cm to 9.0 N / cm at 30 m / min, in particular from 4.0 N / cm to 6.0 N / cm at 30 m / min.Adhesive tape (11, 60, 70) according to at least one of the preceding claims, characterized in that the carrier (1) is a textile carrier, preferably a nonwoven material or a woven fabric, in particular a polyester woven fabric.Adhesive tape (11, 60, 70) according to at least one of the preceding claims, characterized in that the carrier (1) is woven fabric, preferably a polyester woven fabric and is further preferably constructed as follows: • the number of threads in the warp is 10 to 60 / cm • the number of threads in the weft is 10 to 40 / cm • the warp threads have a yarn weight between 40 and 400 dtex, in particular between 44 and 330 dtex, particularly preferably 167 dtex • the weft threads have a yarn weight between 40 and 660 dtex, in particular between 44 and 400 dtex, particularly preferably 167 dtexUse of an adhesive tape (11, 60, 70) according to at least one of the preceding claims for sheathing elongate material (7), wherein the adhesive tape is guided around the elongate material (7) in a helical line.Use of an adhesive tape (11, 60, 70) according to at least one of Claims 1 to 11 for enveloping elongate material (7), the elongate material (7) being enveloped by the tape in the axial direction.Use of an adhesive tape according to Claim 12 or Claim 13 for enclosing elongate material (7), the elongate material (7) being contained in a vehicle.

Citation Information

Patent Citations

  • Modified layered silicates for controlling the unwind force of adhesive masses and improving the barrier properties of adhesive tapes

    DE102014223451A1