JPS6221821B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Summary of the Invention In the extrusion processing of highly viscous thermosets or thermoplastics, the internal and external friction of the melt is reduced in the presence of a substance that reduces the external friction of the melt. The friction ratio is 1.5 to 4.0, and the speed is 20 to 4.0 per minute.
300 meters, and the melt viscosity of the thermosetting material is 50
×10 ⁶ to 300 × 10 ⁶ poise, and a method in which the melt index of the thermoplastic is 0.01 to 0.1 grams per 10 minutes.

In order to maintain the ratio of internal to external friction of the melt in the above range, other compounds should be added to the initial thermoset or thermoplastic, for example zinc dialkyldithiophosphate. For example, barium sulfonate is added to the thermoplastic material.

TECHNICAL FIELD This invention relates to the processing of polymers, and in particular to the extrusion processing of highly viscous thermosets or thermoplastics.

Extrusion processing of polymers is intended for the production of final products or for the production of granules suitable for reprocessing. Extrusion processing involves melting the material and passing the melt through a die to produce granules or final products. There are several advantages to using polymers in particulate form. Since granules have good fluidity, they can be measured accurately. Granular materials are less likely to be pulverized before production, contributing to improved working conditions.

Currently, granulation of thermosetting compositions is a major technical problem, although there are several methods for producing thermosetting granules.

The processing of thermosetting materials by injection molding or compression molding prior to formation with screws places stringent requirements on the constancy of the particle composition of the material.

The production of granular compositions of thermosetting plastics is carried out by two methods. That is, during or after the production of the composition, that is, before it is processed into an article.

As a granulation method by extrusion of thermosetting plastics, melamine resin or phenolic resin is melted in an extruder, the resulting melt is extruded through a grid at 80 to 100°C, and the resulting linear products are cut to predetermined dimensions. It is known in the art (CH 362 836 and 426 215, class 39a ¹ .1/02)
reference).

However, the difficulties associated with maintaining temperature to a high degree of precision effectively inhibit the extrusion process. Moreover, the granules obtained do not have sufficiently good properties for injection molding.

Werner & Freiderer of West Germany attempted to overcome the above drawbacks by developing a continuous process for the production and extrusion granulation of thermosetting compositions. In that process, the raw material is melted, homogeneous, and partially condensed, and then an "agent" is added that stops the condensation reaction and reduces the viscosity of the product. 0.5-8.0% by weight of water is used as such a "reagent" (see German Patent No. 2107927, Class 39a ^1.1 /02).

However, it is also known that the addition of water to thermosetting compositions impairs the dielectric and physicochemical properties of articles made from such materials (Osipov V.A., Levin A.N. , Bulletin of the Moscow Institute of Chemical Technology, Volume 27, Moscow.
Masinostroieni Publishing House, 1964, pp. 48-53; see K. A. Andrianov, Organic Electrical Insulator Technology, Goskimizdat Publishing House, 1941).

In the extrusion of thermoplastics, the flow rate of the extrudate is limited by the formation of viscous defects on its surface, which impairs the appearance of the final product.
Moreover, extrusion processing of high viscosity thermoplastics presents great difficulties.

It is known in the art to make articles from thermoplastics such as polyolefins having a melt index of 0.3 grams per 10 minutes by incorporating the polymer with a lubricant and extruding it in a back piston extruder. The manufacturing process for the final molded article is carried out as follows.

Feed the granular polymer from the charging container to the extrusion passage,
The granules soften and melt under the influence of temperature and are then formed into articles while passing through a cooling zone. In this case, the moldability of the thermoplastics is ensured by the addition of lubricants, such as glycerin and higher aliphatic acid amides (see US Pat. No. 3,492,310, Chapter 260, 41). However, this known method suffers from low molding productivity (finished product runoff velocity is only 0.15-0.64 meters per minute) and low densification of the material in the molding die, which reduces the quality of the final product. It has the disadvantage of being damaged. The shaping of highly polymerized thermoplastics containing large amounts of gel-like parts is generally not possible by this method, ie extrusion, even with the addition of lubricants.

The object of the present invention is to obtain granules or shaped articles at high speed, to avoid premature hardening during granulation, and to obtain granules or shaped articles as an extrusion method for polymers, in particular high viscosity thermosets and thermoplastics, and to avoid premature hardening during granulation. An object of the present invention is to provide a method that can ensure good moldability when reprocessing into articles.

The extrusion processing method for thermosetting or thermoplastic materials according to the present invention reduces the ratio of the internal friction to the external friction of the melt in the presence of a substance that reduces the external friction of the melt.
1.5 to 4.0, and the extrusion speed is 20 to 300 meters per minute, so the variation range of the melt viscosity of the thermosetting material is 50 × 10 ⁶ to 300 × 10 ⁶ poise, and the melt index of the thermoplastic material is 0.01~0.1 per 10 minutes
It's in grams.

According to the method of the invention, it is possible to produce granules from thermosets that can be processed into articles by conventional methods.

Articles made from the granules have a high degree of physicochemical and dielectric properties.

Furthermore, according to the method of the present invention, various molded articles, pipes, sheets, etc., having good surface quality can be produced from thermoplastic materials at rapid extrusion speeds.

As already mentioned above, the variation range of the ratio of internal and external friction of the melt must be between 1.5 and 4.0.
If this value is less than 1.5, the melt tends to adhere to the material of the extrusion device, degrading the surface quality of the extrudate. Moreover, if this value is larger than 4.0, high pressure will be required for extrusion, that is, a large force will be required for the material to pass through the molding die. The above friction ratio allows processing under the condition that the material melt slides along the working inner surface of the extrusion device on the vessel wall.
Decisive. In this case, the movement of the material within the extruder and within the forming die is in the form of a tension-free plug, meaning that the speed of movement of the material in the area adjacent to the vessel wall and the speed inside the material are equal or nearly equal. occurs. This condition allows extrusion of the material to be carried out at high speeds of 20-300 meters per minute. Furthermore, sliding conditions near the vessel wall cannot be ensured at speeds below 20 meters per minute.

The viscosity of the thermosetting material used as the raw material is 50×10 ⁶ to 300×
Must be in the range of 10 ⁶ poise. Adhering to this viscosity range is necessary to maintain the ratio of internal friction to external friction of the melt within the specified range.

The fluctuation range of the melt index of the raw thermoplastic material must be 0.01 to 0.1 grams per 10 minutes. This is also necessary in order to keep the ratio of internal and external friction of the melt within the specified range. As used herein, melt index means the mass of polymer (in grams) extruded from the capillary tube of a standard viscometer in 10 minutes at 190°C under a load of 2.16 kilograms. The standard dimensions of the above capillary are length 8.000±0.025mm, diameter 2.095±0.005
mm, the inner diameter of the viscometer barrel is 9.54 ± 0.016 mm.

According to the invention, the extrusion of the thermosetting material is carried out at a temperature range of
Performed at 90-110°C. At temperatures below 90° C., the material does not completely melt and therefore is not completely homogeneous, inhibiting the extrusion process. On the other hand, at temperatures higher than 110°C, the condensation reaction can proceed to a high degree, and as a result, the material shifts to a non-molten state, making extrusion impossible.

According to the invention, the extrusion of thermoplastics is carried out at a temperature range of
It is carried out at 140-170°C. At temperatures below 140°C, the viscosity of the material is extremely high and extrusion requires high pressure. At temperatures higher than 170°C, the ratio of internal friction to external friction of the melt deviates from the range described above.

According to the invention, extrusion of the material is carried out by adding a compound that reduces the adhesion between the material melt and the surface of the extrusion device in an amount that maintains the ratio of internal friction to external friction of the melt within the specified range. .

Examples of such compounds that can be used for extrusion of thermosetting materials include the following: Zinc dialkyldithiophosphate (alkyl group has 4 to 4 carbon atoms)
8) from 0.5 to 2.5% by weight. 0.5-2.5% by weight of a mixture of zinc dialkyldithiophosphate and 2-ethylhexyl epoxystearate. 30 of zinc dialkyldithiophosphate and polyoxypropylene glycol
0.5-2.5% by weight of a mixture of ~50% by weight and 70-50% by weight.

Further, as the above-mentioned compounds, the following are used for extrusion of thermoplastic materials. 0.5-2.0% by weight of barium sulfonate or 0.5-2.0% by weight of calcium sulfonate.

The extrusion method according to the invention makes it possible to granulate thermosetting materials without causing undesirable premature hardening of the resulting granules.

An advantage of the extrusion method according to the present invention is the fact that the measured ratio of internal friction to external friction virtually eliminates shear deformation between the melt layers, so that no heating occurs that would lead to premature hardening of the material. This can be explained by: Furthermore, the generation of heat due to external friction between the material melt and the surface of the forming die is also reduced. This makes it possible to increase the extrudate outflow velocity to up to 300 meters per minute, thus effectively increasing the productivity of the process.

The resulting granules have a regular cylindrical shape, do not harden during storage, and can be processed by an appropriate method such as injection molding or compression molding. The production of granules by the method of the invention does not involve pulverization;
Therefore, the risk of explosion is extremely small and working conditions are improved.

With the method of the invention it is possible to carry out extrusion of thermoplastics with high or low degrees of polymerization and even with partially crosslinked polymers, e.g. those already in use. . In that case, the final molded part has virtually no tendency to undesirable swelling or deformation. This advantage of the extrusion processing method according to the present invention is that the actual value of the ratio of internal friction to external friction of the melt plays a role of the shear component of the tension during the flow of the melt, and concomitantly causes swelling of the extrudate. This can be explained by the fact that it reduces the pressure in the linear direction.

As a result, it is possible to increase the flow rate of extrudates to 300 meters per minute while maintaining good quality of the extrudates, thereby improving the productivity of the process and at the same time lowering the temperature by 30 to 300 meters per minute compared to conventional extrusion processing methods. The temperature can be lowered by 50°C, reducing the power consumption required for extrusion.

The method according to the invention is actually carried out as follows.

First, the viscosity (for thermosetting materials) and melt index (for thermoplastic materials) of the raw materials are measured. The viscosity of the thermosetting substance was measured using a rotating cylindrical rotational viscometer at a temperature of 120°C, a shear rate of 0.014 per second, and a pressure of 1.
It is measured in 300 kilograms per square centimeter. The viscosity of the thermosetting material melt to be subjected to extrusion must be in the range of 50 x 10 ⁶ to 300 x 10 ⁶ poise.

If the viscosity of the raw material is not within the above range, a substance with the same composition and higher or lower viscosity is mixed with the raw material to adjust the viscosity to the desired value.

For thermoplastics, measure the melt index. Melt index is 0.01 per 10 minutes
Must be in the range ~0.1 grams.

Melt index of raw material polymer per 10 minutes
If greater than 0.1 grams, fillers may be added or further crosslinked by chemical or physical methods to reduce the melt index.

Following the measurement of the above numerical values, the ratio of internal friction to external friction of the melt is measured using a rotating cylindrical rotational viscometer using an uneven rotating barrel (internal friction) and a smooth rotating barrel (external friction). This ratio is determined by the loading ratio of both barrels at a rotation speed of 50 revolutions per minute and at 120°C for thermosets and 160°C for thermoplastics. The above friction ratio is 1.5~
Must be in the 4.0 range. If the friction ratio of the material is in this range, the material can be sent directly to extrusion.
If the material does not meet the above requirements, compounds are added to the raw material that reduce the adhesion of the material melt to the extruder surface so that the friction ratio values meet the above requirements. In the case of thermoset extrusion, the additives are, for example, 0.5 to 2.5% by weight of zinc dialkyldithiophosphate, 20% by weight of zinc dialkyldithiophosphate and 2-ethylhexyl epoxystearate.
0.5 to 2.5 wt% of a mixture of ~50 wt% and 80 to 50 wt%, or 30 to 50 wt% of zinc dialkyldithiophosphate and polyoxypropylene glycol and 70 to
0.5-2.5% by weight of the 50% by weight mixture.

In the case of thermoplastic extrusion, the additives are, for example, 0.5-2.0% by weight of barium sulfonate or 0.5-2.0% by weight of calcium sulfonate.

Furthermore, additives that can be used to adjust the friction ratio include glycol compounds such as hydroxyethylated polyhydroxypropylene glycol, hydroxyethyl esters of fatty acids, hydroxyethylated stearic acid products, and stearin of polyethylene glycol. There are acid esters, stearic acid alkyl esters, benzenesulfonic acid alkyl esters, phosphoric acid alkyl ester salts, alkylaryl sulfonates, etc.
It is not limited to these.

The amount of compound to be added is selected depending on the viscosity or melt index of the material melt.

The compound is added during the material manufacturing process or just before extrusion.

All of the above additives are known in the art. Zinc dialkyldithiophosphate, barium sulfonate and calcium sulfonate are obtained by petrochemical synthesis. Polyoxypropylene glycol is obtained by polymerizing oxypropylene glycol, and 2-ethylhexyl epoxystearate is produced by epoxidizing an ester of oleic acid and 2-ethylhexanol.

After addition of the above compound, the ratio of internal friction to external friction is adjusted to the range of 1.5 to 4.0 according to the present invention using the rotating cylinder type rotational viscometer.

Extrusion can be carried out both by piston extruders and by screw extruders. Extrusion of thermosets is carried out at 90-110°C and extrusion of thermoplastics at 140-170°C with an extrudate flow rate of 20-300 meters per minute.

In order to provide a better understanding of the present invention, some examples are given below. In the following examples, a zinc dialkyldithiophosphate containing an alkyl having 4 to 8 carbon atoms is used.

Example 1 Novolac phenolic formalin resin prepared by kneading with a roller or screw
42.8% weight, hexamethylenetetramine 6.5% weight, lime 0.9% weight, stearin 0.7% weight, china clay 4.4%
The viscosity of a raw material consisting of 1.5% by weight of nigrosine and 43.2% by weight of sawdust is tested in a rotating cylinder rotational viscometer at a temperature of 120° C. and a shear rate of 0.014 per second. This viscosity is 300×10 ⁶ poise.

Next, the ratio of the internal and external friction of the melt is measured using the same instrument. Its value is 1.36.
This viscosity value determines the amount of lubricating additive required to achieve the desired internal to external friction ratio. Its amount is 20% heavy. Therefore, 20% by weight of zinc dialkyldithiophosphate is mixed with the raw material using a vane type stirrer to adjust the ratio of internal friction to external friction. The value of the ratio is 3.7. The material thus prepared was heated to a molding die temperature of 150°C.
Granulate using a screw extruder. The material is extruded from the die in a linear form at a speed of 20 meters per minute and cut along the die surface by a rotating blade into granules with a diameter of 3 mm and a length of 3 to 4 mm. During this time, no fine powder is generated. The material did not harden during granulation, which is because the acetone extrusion part was 49.6% before granulation and 49.5% after granulation.
%) is constant. The granules thus produced do not clump during storage.

Example 2 The viscosity and melt temperature were determined by the method described in Example 1 for a raw material prepared by mixing 58.6% by weight of urea as monomethylol derivatives and dimethylol derivatives, 41.0% by weight of sulfite cellulose, and 0.4% by weight of zinc stearate. Test internal and external friction ratio.
These parameters are 250×10 ⁶ poise and 1.2, respectively. This raw material is then mixed with 1.8% by weight of a lubricating mixture consisting of 30% by weight of zinc dialkyldithiophosphate and 70% by weight of polyoxypropylene glycol.
Add and mix for 30 minutes with a blade stirrer to adjust the friction ratio to 2.8. A material having this ratio is extruded from a piston extruder at a forming die temperature of 95-100°C. The material is extruded through a die in the form of a line and cut into granules with a diameter of 3 mm and a length of 3-4 mm. The extrudate flow rate is 180 meters per minute. No pulverization or early hardening of the material is observed. Granules do not clump during storage.

Example 3 Viscosity and friction ratio tests are carried out by adding 1.5% by weight of a mixture of 20% by weight zinc dialkyldithiophosphate and 80% by weight 2-ethylhexyl stearate to the same raw material as described in Example 1. These values are 50×10 ⁶ poise and 1.5, respectively.

This material is extruded according to the method of Example 1. The extrudate outflow speed is 20 meters per minute.

No pulverization or early hardening of the material was observed during granulation. Granules do not clump during storage.

Example 4 A raw material similar to that described in Example 1 is tested for viscosity and internal to external friction ratio according to the method of Example 1. The viscosity is 180× ¹⁰⁶ poise, and the friction ratio is
It is 1.30. Therefore, in order to set the ratio of internal friction to external friction to the required value, 2% by weight of a mixture of 40% by weight of zinc dialkyldithiophosphate and 60% by weight of polyoxypropylene glycol is added to the raw materials and mixed. The adjusted friction ratio is 4.0. Extrusion processing and cutting of the extrudate is carried out according to the method of Example 1. The extrudate flow rate is 25 meters per minute. Atomization and premature hardening of the material is not observed.
Granules do not clump during storage.

Example 5 Regarding the raw material having the composition described in Example 1,
Test the viscosity and internal to external friction ratio according to the method of Example 1. The viscosity is 250×10 ⁶ poise and the friction ratio is 1.15. Therefore, 2.5% zinc dialkyldithiophosphate was added to the raw materials and milled in a ball mill to 30%
Mix for a minute. The friction ratio is adjusted to 3.65. The resulting material is extruded and granulated in a manner similar to that described in Example 2, with an extrudate flow rate of 240 meters per minute. No atomization or premature hardening of the material is observed. Granules do not clump during storage.

Example 6 Regarding the raw material having the composition described in Example 2,
Test viscosity and friction ratio as in Example 1. The viscosity is 120×10 ⁶ poise and the friction ratio is 1.1. Therefore, 1.2% by weight of zinc dialkyldithiophosphate is added to the raw materials and mixed. The friction ratio is adjusted to 2.2. The material thus prepared is extruded and granulated at 90° C. in a manner similar to that described in Example 2. The extrudate flow rate is 120 meters per minute. No pulverization or early hardening of the material is observed.

Example 7 For a raw material consisting of 58.6% by weight of urea as monomethylol derivatives and dimethylol derivatives, 41.0% by weight of sulfite cellulose, 0.4% by weight of zinc stearate, 0.4% by weight of zinc dialkyldithiophosphate and 1.1% by weight of polyoxypropylene glycol, The viscosity and ratio of internal to external friction of the melt are tested as described in Example 1. The results are 175×10 ⁶ poise and 1.7, respectively.

Since the raw material complies with the requirements of the process of the invention, the material is subjected to a temperature of 95°C and an extrudate flow rate per minute.
At 170 meters, it is directly extruded and granulated according to the method of Example 2.

No pulverization or early hardening of the material is observed. Granules do not clump during storage.

Example 8 Consisting of 70% by weight polyethylene and 30% by weight sawdust, melt index 0.08 grams per 10 minutes,
Ratio of internal and external friction of melt at 160℃
Barium sulfonate 0.5 to raw material with a value of 1.14
% weight to increase the friction ratio. The addition of barium sulfonate gives a friction ratio of 1.75 and the composition is processed in a piston extruder at 160°C. The extrudate flow rate is 125 meters per minute, and the extrudate is cylindrical-linear with a smooth surface.

Example 9 Consisting of 75% polyethylene and 25% sawdust, melt index 0.07 grams per 10 minutes;
The ratio of internal friction to external friction of the melt at 160℃ is 1.4
The friction ratio is increased by adding 1% by weight of calcium sulfonate to a raw material having a value of . Addition of calcium sulfonate results in a friction ratio of 2.7. With this ratio the composition is processed according to the method of Example 7. The extrudate flow rate is 150 meters per minute. The extrudate is obtained in the form of a cylindrical line with a smooth surface.

Example 10 Comprising polyethylene containing 58% weight gel fraction, partially reticulated by chemical or physical methods, and 1% by weight barium sulfonate, melt index 0.09 grams per 10 minutes, internal and external friction A composition having a value of ratio 3 is extruded at 140° C. from a piston extruder equipped with a pipe-forming die. The extrudate flow rate is 80 meters per minute. The extrudate has a tubular shape and the pipe thus produced has a smooth surface.

Example 11 A composition consisting of 49% by weight polypropylene, 50% by weight synthetic silica, 1% by weight calcium sulfonate, having a melt index of 0.05 grams per 10 minutes and a ratio of internal friction to external friction of 3.2 was heated at 170°C.
extruded from a piston extruder at The exit velocity of the linear extrudate is 240 meters per minute.
The linear object thus produced has a smooth surface.

Example 12 A composition consisting of 58% by weight of polyethylene, 40% by weight of sawdust and 2% by weight of barium sulfonate, having a melt index of 0.01 grams per 10 minutes and a ratio of internal to external friction of 4.0, was heated at 160° C. Extrude from the extruder. Extrudate flow rate per minute
It is 180 meters. The extrudates are hexagonal and have smooth surfaces.

Example 13 Consisting of 66% by weight polyvinyl chloride, 15% by weight Aerosil, 6% by weight Sierra, 12% by weight synthetic rubber and 1% by weight calcium sulfonate, with a melt index of 0.1 grams per 10 minutes and internal friction of the melt. 140 composition with a value of external friction ratio 1.8
Extrude from a piston extruder at °C. The extrudate has a tubular shape and the flow rate is 20 meters per minute. The extrudates thus produced have a smooth surface.

Comparative Example 1 Consists of 70% by weight polyethylene and 30% by weight sawdust, melt index 0.08 grams per 10 minutes,
Ratio of internal and external friction of melt at 180℃
Barium sulfonate 0.3 to raw material with a value of 1.14
Add %wt. The addition of barium sulfonate increases the friction ratio to 1.45, and when this material is extruded in a piston extruder at 160 °C, the flow rate of the cylindrical linear extrudate is 110 meters per minute, and the surface is not shiny. .

Example 14 A raw material consisting of 58.6% by weight of urea as monomethylol derivatives and dimethylol derivatives, 41.0% by weight of sulfite cellulose and 0.4% by weight of zinc stearate, with a viscosity of 250×10 ⁶ poise and a melt internal/external friction ratio of 1.2. , 0.5% by weight of a mixture of 30% by weight zinc dialkyldithiophosphate and 70% by weight 2-ethylhexyl epoxystearate.
By adding such additives, the internal/external friction ratio of the melt increases to 1.55 at 120°C. The material thus prepared is linearly extruded in a piston extruder at 100° C. and a speed of 100 meters per minute. The extrudate has a smooth surface and the subsequently produced granules have a high density of 1.2 to 1.25 grams per cubic centimeter. However, as the runoff velocity increases to 140 meters per minute, cracks begin to form on the surface.

Similar results were obtained when a mixture of zinc dialkyldithiophosphate and polyoxypropylene glycol was carried out using the same proportions and amounts.

Example 15 30% by weight of zinc dialkyldithiophosphate and 70% by weight of 2-ethylhexyl epoxystearate were added to the starting material having the same composition as in Example 14, with a viscosity of 250×10 ⁶ poise and a melt internal/external friction ratio of 1.2. Add 2.5% by weight of the mixture with 2.5% by weight. By adding this additive, the internal/external friction ratio of the melt becomes 3.8.
The material is then extruded in a piston extruder at 90°C to form granules. The surface of the linear product coming out of the extruder with a flow rate of 240 meters per minute is smooth.

Similar results were obtained using a mixture of zinc dialkyldithiophosphate and polyoxypropylene glycol in the same proportions and in the same amounts.

Example 16 Consisting of 75% polyethylene and 25% sawdust, melt index 0.07 grams per 10 minutes;
0.5% by weight of calcium sulfonate is added to the raw material having a value of internal/external friction ratio of 1.4 at 160°C.

By adding such additives, the friction ratio increases to 1.7, and when this material is extruded at 160 °C, a smooth wire is obtained from the extruder with a flow rate of 120 meters per minute.

Example 17 0.5% by weight of zinc dialkyldithiophosphate is added to the raw material prepared by the method described in Example 1 and mixed well. The material made in this way has an internal/external friction ratio of 1.55 at 120°C. This material was processed by a screw extruder at 110°C at 20°C per minute.
Extrude with a flow rate of m. The wires thus obtained had a smooth surface and a high density of 1.1 grams per cubic centimeter.

Claims (1)

[Claims] 1. In the presence of a substance that reduces the external friction of the melt, the ratio of the internal friction to the external friction of the melt is 1.5 to 4.0, the speed is 20 to 300 meters per minute, and the thermosetting The variation range of the melt viscosity of the substance is 50×10 ⁶ to 300×
A method for extruding thermosetting or thermoplastic materials in which a high viscosity material is extruded at 10 ⁶ poise with a melt index variation range of 0.1 to 0.01 grams per 10 minutes. 2. The method of extruding a thermosetting or thermoplastic material according to claim 1, wherein the extrusion of the thermosetting material is carried out by adding 0.5 to 2.5% by weight of zinc dialkyldithiophosphate. 3 20-50% by weight of zinc dialkyldithiophosphate and 2-ethylhexyl epoxystearate and 80%
Claim 1, in which the extrusion of the thermosetting material is carried out with the addition of 0.5 to 2.5% by weight of a mixture of ~50% by weight.
Extrusion processing method for thermosetting or thermoplastic materials as described in Section 1. 4. Extrusion of the thermosetting material is carried out by adding 0.5 to 2.5% by weight of a mixture of 30 to 50% by weight and 70 to 50% by weight of zinc dialkyldithiophosphate and polyoxypropylene glycol, according to claim 1. Extrusion processing of thermosetting or thermoplastic materials. 5. The method for extruding a thermosetting or thermoplastic material according to claim 1, wherein the extrusion of the thermoplastic material is carried out by adding 0.5 to 2.0% by weight of barium sulfonate. 6. The method for extruding a thermosetting or thermoplastic material according to claim 1, wherein the extrusion of the thermoplastic material is carried out by adding 0.5 to 2.0% by weight of calcium sulfonate. 7. The method for extruding a thermosetting or thermoplastic material according to any one of claims 1 to 4, wherein the extrusion of the thermosetting material is carried out at 90 to 110°C. 8. The method for extruding a thermosetting or thermoplastic material according to any one of claims 1, 5 and 6, wherein the extrusion of the thermoplastic material is carried out at 140 to 170°C.