DE19526742A1 - Readily-miscible antistatic additive, esp. for PVC - Google Patents

Abstract

Antistatic additives (I) contg. 5-50 wt. % water-soluble or -dispersible antistatic(s) (II) and 50-95 wt. % thermoplastic polymer (III) are obtd. by homogeneously dispersing (II) in an aq. dispersion of (III) obtd. by emulsion, suspension or micro-suspension polymerisation, and then drying the dispersion. Also claimed are (i) the above process as such; and (ii) plastic film, esp. PVC film, and extruded plastic mouldings contg. 0.1-5 wt. % (I).

Description

The invention relates to an antistatic additive, method for its manufacture and its use for antistati equipment of polymer masses for thermoplastic Processing.

Due to the isolator properties of plastics strong electrostatic charges on their surfaces occur. Statically charged plastic parts tend to Pollution, however, can also be serious Problems in the production and processing of plastics occur. The antistatic properties of plastics who which is why verbes by adding suitable additives sert. As antistatic agents are generally hygroscopic Compounds or organic electrolytes used which a conductive on the surface of the plastic article Form layer.

There are basically two options for the antistatic egg improve properties of plastics. The surfaces conductivity of plastics can be applied by applying hy large-scale compounds or organic electrolytes, from aqueous or alcoholic solution, onto the surface the plastic parts are improved (external antistatic agents). The disadvantage here is the relatively high expenditure on equipment as well as the short duration of action when applied externally Antistatic agents by rinsing, wiping or migration into the  Plastic removed from the surface relatively quickly will. In practice, therefore, internal types are usually used tistatics used, that is the antistatic auxiliary is incorporated into the finished part. Due to the depot effects of the incorporated antistatic can lead to losses the surface can be compensated for by diffusion, whereby the antistatic effect lasts longer.

Internal antistatic agents are generally used together with white other plastic additives such as lubricants, stabilizers or pigments in mixing units in the plastic powder incorporated. The problem here is that very small Amounts of a relatively incompatible additive homogeneous in Plastic should be distributed. Since it is Antistati ka often around liquid, pasty or waxy, that is non-powdery and non-free-flowing substances their handling is very difficult, that means with the Vermi With plastic powder, there is clumping and inhomogeneous distribution of the antistatic. With antistatic agents, which are present as solids is the handling complicates that it is often difficult to melt or solids that decompose at higher temperatures; too high temperatures can often damage the polymer dig.

In the film processing of polyvinyl chloride, which produced by the suspension polymerization process So far, one has tried to reverse the problem hen by adding antistatic surfactants of emulsion PVC, which is usually up to about 3% Tensi de contains, were introduced to the suspension PVC. Night egg lig here is that due to the larger required Amounts of emulsion PVC usually melt the rheology of the mixture during the processing process (e.g. Ka landrieren) is affected and in addition to turbidity of the film  usually also get an unfavorable surface quality will.

Another method known from the prior art wise consists of using masterbatch technology To produce a concentrate from antistatic agent and polymer powder, which is then added to the polymer powder to be processed becomes.

DE-C 33 47 704 describes a procedure for a Concentrate made from polymer powder coated with antistatic will be produced. For this, the polymer powder with a Lö Solution or dispersion of the antistatic mixed and on finally the solvent or dispersant is removed. Al Alternatively, the polymer powder is melted with a Antistatic treated and cooled. The so obtainable Chen concentrates are then processed into the art to be processed fabric powder incorporated.

EP-A 259960 describes a procedure in which the Antistatic with an absorbent solid is mixed, polymer powder is added, the mixture for Bring melt and then the mixture abge cools and the solid is granulated. The granules who which is then added to the polymer to be processed.

From US-A 4147742 is a solid antistatic concentrate known, which by mixing liquid antistatic with polymer powder, followed by heating to liquefaction mixture and rapid cooling to a homogeneous fixed blend is available.

The disadvantage of all these procedures is the additional Liche apparatus, time and energy to remove the Solvent or dispersant of the antistatic, or  Melt the antistatic-polymer mixture. The familiarization th of the antistatic in the melt state leads to a ther mix load, especially in the case of polymers or copolymers of vinyl chloride should be avoided. Continue is generally an additional in the known procedures Licher mixing process to produce the concentrate conducive.

The task was therefore to provide an antistatic concentrate antistatic equipment of plastic masses available to provide, which without additional mixing process and without additional time and energy to melt or removal of solvent or dispersant available is.

The invention relates to an antistatic additive tend 5 to 50 wt .-% of a water-soluble or in water finely dispersible antistatic or mixtures of like antistatic agents and 50 to 95 wt .-% polymer, each be referred to the total weight of polymer and antistatic, obtainable in that after the polymerization ei thermoplastic polymer by means of the emulsion, Sus pension or microsuspension process the antistatic in the aqueous polymer dispersion or a mixture of the aq added polymer dispersions and evenly distributed is and the dispersion is then dried.

Another object of the invention is a method for Production of an antistatic additive containing 5 to 50% by weight a water-soluble or finely divided in water gable antistatic or mixtures of such antistatic and 50 to 95 wt .-% polymer, each based on the total weight of polymer and antistatic, characterized by net that after the completion of the polymerization of a thermopla tical polymers by means of the emulsion, suspension or  Microsuspension process the antistatic into the aqueous Polymer dispersion or a mixture of the aqueous polymer dis persions is added and evenly distributed and the Dispersion is then dried.

To produce the antistatic additive, thermoplastics are used cal homo- or copolymers used, which after Emulsion, suspension and microsuspension processes be put and thus after completion of the polymerization are present in aqueous dispersion. Homo- and Copolymers with a glass transition temperature Tg <50 ° C. Examples of these are vinyl chloride homopolymers, vinyl chloride copolymers, preferably vinyl chloride-vinyl ester copolymers, homo- and copolymers of styrene or methylstyrene, homo- and copolymers of methyl acryl lat and methymethacrylate, homo- and copolymers of Acrylonitrile such as ABS or SAN. Are particularly preferred Polyvinyl chloride and vinyl chloride-vinyl acetate copolymers. At the most preferred is emulsion and microsuspension PVC. The polymer dispersion can also be made from dispersion mixtures of different polymers or from dispersion mixtures gen from, from different of the above-mentioned manufacture process obtained, polymer dispersions exist.

Suitable antistatic agents are known from the specialist literature and for example in S. Riethmayer, rubber asbestos plastics 1973; G. Balbach, Kunststoffe 67 (1977), 154 and R. Gross man, Journal of Vinyl Technology 15 (1993), 164. The antistatic agents can be roughly divided into three groups share: cationic, anionic and nonionic compounds gene, which are optionally in polymeric form can.

Suitable cationic compounds are, for example, ammo nium, phosphonium and sulfonium salts. To be favoured  quaternary ammonium compounds used. Examples here for are tetraalkylammonium halides, tetraalkylammonium sulfates, polyethoxylated tetraalkylammonium halides, po lyethoxylated tetraalkylammonium compounds with alkylsul fat or p-toloyl sulfonate anion.

Suitable anionic compounds are, for example, alkyl sulfates, alkyl sulfonates, alkylarylsulfonates, alkyl phosphates, Dithiocarbamate. The alkali salts of alkyl are preferred sulfonates or alkyl sulfates, the alkali salts of alkylbenes benzenesulfonates, alkylated diphenyloxidesulfonates and mono- or Di-alkyl phosphates, the compounds in general NEN each have 8 to 22 carbon atoms in the alkyl radical.

As nonionic compounds are compounds with polar Character, for example with alcohol, ester or poly ether function, suitable. Examples of these are polyglycols such as polyethylene glycol or polypropylene glycol, ethoxylated Fatty alcohols such as ethoxylated stearyl alcohol, ethoxylated Alkylphenols, ethoxylated fatty amines or fatty amides such as N, N-Bishydroxyethyl-substituted fatty amines and fatty amides, poly ethylene glycol fatty acid esters, partial glycerin and sorbitan esters such as ethoxylated glycerol mono fatty acid esters and ethoxylated sorbitan esters.

Especially for the anti-static equipment of PVC, the Alkali salts of alkyl sulfates, alkyl sulfonates or alkyl aryl sulfonates with 8 to 22 carbon atoms in the alkyl radical are preferred. The antistatic agents mentioned can be used individually or in a mixture be used. The antistatic con preferably contains concentrate 7 to 35% by weight of one or more antistatic agents and 65 up to 93% by weight of polymer, in particular polyvinyl chloride, where the data in% by weight on the total weight of poly obtain merisat and antistatic.  

The antistatic concentrate is produced by Zu Add the antistatic compound to an aqueous Dispersion of thermoplastic polymers after completion polymerization and before drying the polymer disperser sion. Aqueous polymer dispersions which are suitable for the emulsion, suspension and microsuspension polymer tion processes have been produced.

The processes mentioned for the radical polymerization of are ethylenically unsaturated monomers in the aqueous phase familiar to the expert and therefore do not require any detailed information ten explanation.

The polymerization is carried out by the usual oil or. water-soluble peroxidic initiators or azo binder dung, in an amount of 0.01 to 5 wt .-%, based on Mo nomere, initiated. If necessary, redox systems can also be used be used. Generally the polymerization performed at 0 to 80 ° C. To stabilize the polymer risk assessment can vary depending on the chosen method Protective colloids and / or emulsifiers are used. Ge suitable protective colloids are, for example, cellulose ethers and / or polyvinyl alcohols. As emulsifiers, both ionic, such as alkyl sulfates or alkyl sulfonates, as also nonionic emulsifiers, such as partial fatty alcohol ethers or partial fatty acid esters of polyhydric alcohols will. For setting the molecular weight or K value regulators can be added to the polymerization batch.

The polymerization can be batch or continuous Lich, with or without the use of seed latices and template all or individual components of the reaction mixture, or with partial submission and replenishment of the or  individual components of the reaction mixture will. In microsuspension polymerization, the An set homogeneously in a known manner before the polymerization siert.

After the polymerization is complete, an aqueous dispersion is present sion with a solids content of usually 30 to 60 wt .-% in front. The addition of the antistatic or antistatic Mixtures are preferably carried out with continuous stirring the dispersion, because at the high concentrations of ioni antistatic agents agglomerate the latex particles can occur, which leads to a slow segregation of the dis persion (sedimentation) leads. However, this coagulation can by continuous or intermittent mixing, for Example by stirring, can be prevented or agglomerated merate completely or at least partially redisper be emulated so that the dispersion for further processing tion remains in a homogeneous state. Especially with Sus pensions PVC, this sedimentation behavior is generally ge give. For this reason, too, is an emulsion or micro to prefer suspension polymer.

Alternatively, the antistatic (mixture) can also be used without Stirring the polymer dispersion can be added. In this Case the homogenization of the antistatic takes place in Lö solution or finely dispersed polymer dispersant sion immediately before the drying step. The admixture and homogenization can take place in the polymerization vessel or in a separate stirred tank with agitator or in a con continuous mixing equipment such. B. a static mixer, due to the sedimentation problem preferably immit telbar before the drying step. Definitely it must be ensured in both alternatives that before the Drying the antistatic and the polymer evenly ver divides is present in the dispersion.

The antistatic (mixture) can be in solid or liquid form  be added to the dispersion or the dispersion mixture. It is preferably in the form of an aqueous solution or finely divided dispersion added, the concentration the solution or the solids content of the dispersion in this way sen that a dry substance / water ratio (Ge parts by weight) which now contain the antistatic (mixture) polymer dispersion from 10/90 to 65/35, preferably 25/75 to 50/50.

In the last step, the antistatic (ge mixed) containing aqueous polymer dispersion. The Drying can be used for drying polymer disper conventional processes such as spray drying, Drum drying, fluid bed drying, fluid bed drying, Trom melt drying or current drying. Preferably the mixture by spray drying or roller drying ge dries.

For spray drying, the known devices can be used, such as spraying through single or multi-component nozzles or with the atomizing disc, in a possibly heated dry gas stream. To avoid the risk of dust explosions, drying can be carried out with the addition of inert gas if necessary. In general, temperatures from 35 to 110 ° C, preferably from 50 to 100 ° C (dryer outlet temperatures) are used. The optimal temperature of the dry gas can be determined in just a few experiments. To increase the shelf life and, for example, to prevent caking and blocking in the case of polymers with a low glass transition temperature T _g , antiblocking agents, for example aluminum silicates, diatomaceous earth, calcium carbonate, may be added during drying. Furthermore, small amounts of defoamers or atomization aids can optionally be added to the dispersion.

If drying is carried out using the roller drying process, you can the known devices for roller drying used be, for example single-roll dryer, double drum rock ner, two-drum dryer or two-stage drum dryer. The The task of the dispersion to be dried depends on the viscosity act of the dispersion and the type of rollers used dryer. There are single-roll dryers (immersion rollers dryer), in which the dispersion of the heated roller is taken over by immersion; the dispersion can on the heated roller can be sprayed on or from above the roller can be applied or with an application roller be applied. Double drum dryers have two in Larger distance, upward-rotating drying rollers between which the dispersion is fed. With two whale the two drying rollers are only slightly dry stood apart from each other and turn down. A wide one Another example of a dryer is the vacuum roller dryer ner. The temperature of the drying roller is preferably from 50 to 140 ° C, particularly preferably between 60 and 120 ° C. The speed of rotation of the drying roller is becoming more common set so that the dwell time on the roller is sufficient to ensure adequate drying. By changing the number of revolutions of the roller / rollers and by changing the distance of the application roller from the Drying roller can be used within the drying conditions predetermined limits vary and thus to the respective Optimize mixture based. The dry product is with egg removed from the drying roller with a scraper.

The antistatic additives according to the invention are suitable for antistatic treatment of polymer masses for thermopla processing. For this, the antistatic additive, ge possibly together with others in the processing of Thermoplastic usual additives, and with the base polymer  sat compounded in the known mixing units. Preferential The antistatic additive becomes wise in such an amount added to processed polymer powder that the conc tration of antistatic 0.1 to 5.0 wt .-%, especially before add 0.3 to 3.0% by weight, each based on the processing end polymer powder.

Additives common in PVC technology, which mass-processing equipment based on vinyl chloride polymers that can still be added are at for example, heat and light stabilizers based on Zn, Ca, Cd, Ba, Sn and Pb compounds; for example BaZn and CaZn connections. In addition, Ver work aids, such as lubricants (e.g. paraffins, fatty acids reester), as well as pigments such as titanium dioxide and fillers such as Chalk, highly disperse silicon dioxide can be incorporated. The quantities added correspond to those in PVC processing tion usual. If necessary, those for Soft PVC processing usual amounts of plasticizer, preferably two up to 50% by weight, based on the total weight of soft PVC, be incorporated. Examples include phthalic acid esters such as dioctyl phthalate or diisodecyl phthalate.

The production of the compounds can be done in the PVC technology is done by mixing the usual plants Components at elevated temperature, usually up to about 140 ° C, for example in fluid mixers, in high-speed ones Internal mixers, in slow-running powder mixers, so-called called cold mixers, in two-roll mixers, in Banbury-Mi shear or in extrusion presses with temperature-controlled cylinders and / or snails.

In a preferred embodiment, the antistatic ad contains ditiv the same polymer base as the antistatic arming polymer mass. Use is particularly preferred  of antistatic additives, which act as a polymer component Homopolymers or copolymers of vinyl chloride contain for antistatic treatment of polymer masses from homo- or Copolymers of vinyl chloride.

The use of the invention is preferred Antistatic additives based on polyvinyl chloride Production of plasticizer-free and plasticizer-containing, antistatic molded plastic parts, especially poly vinyl chloride molded parts. Examples of this are PVC films, which are accessible by calendering. Another Use is in plastic masses for the production of Shaped bodies, especially in the extrusion process.

The antistatic additive according to the invention is notable for a much more homogeneous distribution of the antistatic in the Additive and thus also in the finished part. Surprisingly se is with the antistatic additive according to the invention with ge smaller amounts of an antistatic, the same antistatic achieved. As a result, the potentially undesirable take effect Influences of antistatic agents, such as clouding of the finished part, less through. That is, you get when using the antistatic additives according to the invention higher transparency of the Finished parts with the same antistatic effect lower amounts of antistatic. Furthermore, the problem lies Statistical additive as easy to handle, free-flowing and si solid, in the form of a low-dust powder, before, which is also suitable for use in automatic dispensers net.

In addition to the advantage of the manufacturing process stick properties of the antistatic additive, is by the inventive method, the manufacture of antistatic ad ditives significantly improved. In contrast to those from the Methods known in the art are carried out with the inventive method the manufacture of antistatic ad ditive without additional equipment, as in  for example in the production of antistatic concentrates in the melt or adding the antistatic in organic Solvents which have to be distilled off again, is required.

Especially for those for the antistatic equipment of PVC suitable antistatic agents, the problem arises that these melt at high temperature or before melting decompose so that even at the most acceptable mixer temperature only an insufficient distribution of the antistatic results in the finished part. Furthermore, should be straight at Plastics such as PVC have longer thermal loads anyway be avoided. This problem can be with the fiction contemporary antistatic additive in a surprisingly simple way and Way bypassed.

In contrast to the procedures just mentioned, the Production time, compared to the usual preparation processing of polymer dispersions not increased, since the Zumi Antistatic agents are normally used in the cooling or Collection phase of the polymer dispersion, before drying, he can follow. In contrast to processes in which the Her provision of the antistatic concentrates by admixing An tistatika in the polymer melt or mixing of poly Merpulver with antistatic solution (dispersion) and then ßender removal of the solvent or dispersant follows, arises in the procedure according to the invention only a negligible additional energy because the drying to a solid polymer / antistatic mixture in the course of the necessary processing of Polymer dispersions, with retention of dry polymer powder, done.

The following examples serve for further explanation the invention:

Preparation of the antistatic concentrate (Example 1-6) example 1

To an after the emulsion polymerization process made PVC latex, which contains 85 parts by weight of PVC with a K value of 60, 0.7 parts by weight of emulsifier (alkylbenzenesulfonate) and 90 parts by weight Parts of water contained 14.3 parts by weight of an Antista ticum (alkyl sulfonate) in the form of a 25% aqueous solution solution mixed. The dispersion was by constant or stirring carried out at short intervals homogeneously until it has dried. The drying took place with means of a single-roll dryer with application roller (Escher-Wyss Type EA 360; steam heated, drum temperature 90 ° C). It a dry, free-flowing powder was obtained.

Example 2

The procedure was analogous to Example 1, with the difference that that as an antistatic Hostastat® HS1 (commercial anti Static from Hoechst AG for PVC processing with alkyl sulfonate as active ingredient) was used.

Example 3

The procedure was analogous to Example 1, with the difference that that alkylbenzenesulfonate was used as an antistatic.

Example 4

To an after the emulsion polymerization process made PVC latex, which contains 75 parts by weight of PVC with a K value of 60, 0.7 parts by weight of emulsifier (alkylbenzenesulfonate) and 90 parts by weight Contained water, 24.3 parts by weight of Hostastat® HS1  mixed in the form of a 25% strength aqueous solution. The Dispersion was by constant or at short intervals performed stirring kept homogeneous until dried has been. Drying was carried out using a single roll dryer with applicator roller (Escher-Wyss type EA 360; steam heated, drum temperature 90 ° C). It got dry receive free-flowing powder.

Example 5

To one after the suspension polymerization process manufactured PVC suspension, which with 85 parts by weight of PVC K value contained 60 and 120 parts of water, 14.7 parts of Ho stastat® HS1 in the form of a 40% solution. The Suspension was kept homogeneous by constant stirring and via single-substance nozzles in a spray dryer (Nubilosa) dries. A dry, free-flowing powder was obtained.

Example 6

The procedure was analogous to Example 5, with the difference that that alkylbenzenesulfonate was used as an antistatic.

Comparative Example 1

As a comparative example 1 was described in the following benen test specimen production alkyl sulfate as antistatic ad ditiv, used directly as a dry solid.

Comparative Example 2

As a comparative example 2 was described in the following test specimen production Hostastat® HS1 as Antistatic additive, used directly as a dry solid.

Comparative Example 3

As a comparative example 3 was described in the following benen test specimen production alkylbenzene sulfonate as anti static additive, used directly as a dry solid.  

Comparative Example 4

As a comparative example 4 was described in the following test specimen production analogous to the procedure of DE-A 33 47 704 a 25% aqueous solution of alkylbenzene sulfonate used in water.

Comparative Example 5

As a comparative example 5 was described in the following benen test specimen production containing an emulsion PVC 97.3 parts by weight of PVC and 2.7 parts by weight of alkyl sulfonate used.

Comparative Example 6

As a comparative example 6 was described in the following an antistatic concentrate set, which by mixing 15 parts of alkylbenzene sulfonate as a 25% solution to 85 parts by weight of dry S-PVC was manufactured in the fluid mixer.

The following difficulties arose during production: The high water content had to be removed. To do this had to the mixture is either heated or better one Be subjected to vacuum. Because of the high content of upper surface active substance (antistatic) led the evaporation of the water to enormous foam problems.

The composition, residual moisture and flowability (after DIN 53 492 measured on a funnel with a diameter of 25 mm) Antistatic additives according to Examples 1 to 6 and Ver Similar examples 1 to 6 are summarized in Table 1.  

Application test Test recipe

The antistatic additives according to Examples 1 to 6 and Comparative Examples 1 to 6 were used in the following test recipe, the proportions of S-PVC and antistatic additive listed in Table 2:
98.5 to 44 parts by weight of S-PVC Vinnol® H 60 DS (Vinnolit),
1.5 to 56 parts by weight of antistatic additive,
1.5 parts heat stabilizer Hostastab® SnS 10 (Hoechst)
0.4 parts internal lubricant Loxiol® G 16 (Henkel),
0.2 parts of external lubricant Hoechst® Wachs E (Hoechst).

Mixing process

The antistatic additives of Examples 1-6 and Comparative examples 1, 2, 3, 5, 6 were carried out in an analogous manner processed according to the above test recipe:

The mixing process was carried out in a 75 l fluid mixer from Henschel carried out with Variant tools. All mix Components were placed cold in the standing mixer. The S-PVC was filled in first and the other Be components of the test recipe added. Then it was long mixed until a temperature of 120 ° C due to the friction was achieved. The hot mixture was then poured into one Drained 150 l Henschel cooling mixer and reduced to 40 ° C cools. The total duration of the process was approximately 20 minutes.

The aqueous antistatic solution according to Comparative Example 4 was processed analogously to this procedure, with the Un differed that the antistatic solution only after one minute Start mixing the other components within one egg metered in a minute. The following pros resulted bleme:  

The moist mix tended to stick to the mixer wall ben. The mixing time doubled until the 120 ° C was reached themselves due to the reduced friction forces. As a result this resulted in a low homogeneity of the mixture, de ren improvement only by using more complex Mixing tools would be possible.

Despite the 120 ° C, a mixture with higher humidity remained salary that can only be reduced with further effort.

Production of the test specimens Film production

The mixtures according to the test recipe were each on one 4-roll L-calender with planetary roll extruder as pre-gelling unit processed into foils. The film thickness was there set to 0.2 mm. It was with a friction ratio 1: 1.1, the roller temperature was 180 up to 200 ° C, the withdrawal speed was in each case 10 m / min.

Press plate production

200 g each of the mixtures according to the test recipe Preplasticized at 175 ° C for 10 minutes on a laboratory rolling mill. The rolled skins with a thickness of 0.4 to 0.5 mm were in cut several pieces into the heated press mask and pressed in a plate press at 175 ° C: 8 minutes Prepressing at 0.5 N / mm², 2 minutes pressing at 10 N / mm². The press plates were then cooled. Press was obtained plates with a thickness of 2.0 mm.

Test procedure for testing the test specimens transparency

The transparency was measured on the 2.0 mm thick Press plates according to DIN 53 147.  

In addition, the haze of the 0.2 mm thick films became subjective judged by both at right angles and in an obtuse angle a) against the bright sky and b) against a black, matte background.

electrostatic discharge

The measurement of the decay time (half-life) according to DIN VDE 0303 Part 8 was carried out at 23 ° C and 50% or 30% relative Air humidity on the foils.

Surface resistance

The measurements on the foils were made in accordance with DIN VDE 0303 part 3 at a test voltage of 1000 V. Table 2 shows the Median value from 3 measurements given.

Run (calendering) behavior

The behavior of the sample during the calendering process was de subjectively judged. The overall assessment was based on the required friction, the running behavior of the kneader and the stickiness of the film on the calender. The grading scale in Table 2 ranges from 1 (very good) to 6 (not ka landable).

Surface quality of the film

The optical structuring and surface quality, caused, for example, by undesired flow lines or bubbles in the film was assessed subjectively.

The test results of the application test of the Examples 1 to 6 and Comparative Examples 1 to 6 are summarized in Table 2.  

Table 2

Table 2 (continued)

Claims (13)

1. Antistatic additive containing 5 to 50 wt .-% of what water soluble or finely dispersible in water Antistatic or mixtures of these antistatic agents and 50 up to 95 wt .-% polymer, each based on the total Ge important polymer and antistatic available that after the polymerization of a thermoplastic 's polymers by means of emulsion, suspension or Microsuspension process the antistatic into the aqueous polymer dispersion or a mixture of the aqueous Polymer dispersions added and evenly distributed is, and the dispersion is then dried. 2. Antistatic additive according to claim 1, characterized in net that one or more compounds as an antistatic from the group of ammonium, phosphonium and sulfonium salts ze, alkyl sulfates, alkyl sulfonates, alkylarylsulfonates, Alkyl phosphates, dithiocarbamates, polyglycols, ethoxy gated fatty alcohols, ethoxylated alkylphenols, ethoxy gated fatty amines or fatty amides, polyethylene glycol fat acid esters, glycerol and sorbitan partial esters, ethoxylated glycerol and sorbitan partial esters are included. 3. Antistatic additive according to claim 1 or 2, characterized ge indicates that one or more Al potash salts of alkyl sulfates, alkylarylsulfonates, alkylated diphenyl oxide sulfonates or alkyl sulfonates with 8 to 22 carbon atoms are contained in the alkyl radical. 4. Antistatic additive according to claim 1 to 3, characterized ge indicates that the antistatic concentrate 7 to 35 wt .-% one or more antistatic agents and 65 to 93% by weight Contains polyvinyl chloride.   5. Process for producing an antistatic additive ent holding 5 to 50 wt .-% of a water-soluble or in what this finely dispersible antistatic or gem these antistatic agents and 50 to 95 wt .-% polymer, each Weil based on the total weight of polymer and An tistatic characterized in that after completion of the Polymerization of a thermoplastic polymer by means of of the emulsion, suspension or microsuspension ver drive the antistatic into the aqueous polymer disper sion or a mixture of the aqueous polymer dispersions added and evenly distributed, and the disper sion is then dried. 6. The method according to claim 5, characterized in that to an aqueous dispersion of homo- or copolyme risk with a glass transition temperature Tg <50 ° C or several antistatic agents in the form of an aqueous solution or dispersion can be added, with a dry sub punch / water ratio (parts by weight) of the anti static (mixture) containing, polymer dispersion of 10/90 to 65/35 is set. 7. The method according to claim 5 or 6, characterized in net that the drying of the antistatic (mixture) containing, aqueous polymer dispersion by spray drying or drum drying takes place. 8. The method according to claim 7, characterized in that the drying of the, contain the antistatic (mixture) the aqueous polymer dispersion by means of roller drying he follows. 9. Use of antistatic additives according to one of the above standing requirements for the antistatic equipment of  Polymer masses for thermoplastic processing, wherein the concentration of antistatic 0.1 to 5.0 wt .-%, be pulled on the polymer powder to be processed, is. 10. Use according to claim 9, characterized in that as a polymer component in the antistatic additive homo- or Copolymers of vinyl chloride are included and the additive for the antistatic finishing of polymer mass from homo- or copolymers of vinyl chloride is used. 11. Use according to claim 10, characterized in that Antistatic additives based on polyvinyl chloride for the production of plasticizer-free or plasticizer containing, antistatic polyvinyl chloride molded parts be used. 12. Plastic film, in particular PVC film, containing 0.1 up to 5.0% by weight, based on the polymer content, of one or several antistatic additives according to claims 1 to 4. 13. Plastic molded body, produced after extrusion process containing 0.1 to 5.0 wt .-%, based on the Polymer component, one or more antistatic additives according to claims 1 to 4.