JPH09169918A - Composition having high fire spread resistance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition at the lowest cost.

SOLUTION: This composition is obtained by incorporating a common polymer suitable for forming cable insulating and/or protective coverings as base material with a filler in the form of compound except group 2A metal hydroxide and hydrate, a silicone, and a metal salt. The metal is selected from calcium, magnesium, barium, strontium, thallium and cerium, and the salt is dissociated from the filler inside the base material.

COPYRIGHT: (C)1997,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition having a high fire spread resistance, and more particularly to a composition having a high fire spread resistance suitable for producing electric and / or optical cables and lines. However, the composition of the present invention is not limited to such use. More particularly, the invention is: -A substrate (e.g. a polymer) conventionally used in particular for forming insulation and / or protective coatings for cables.
When, - the form of filler compound Periodic Table excluding a hydroxide and a hydrate of the 2A group metal elements such as calcium carbonate CaCO _3, - silicone, for example in the form of an oil or rubber, A metal salt and a composition comprising as a basic constituent.

[0002]

Such nonflammable compositions are described, for example, in French Patent No. 2,678,942. The advantage of the composition described in the patent is that it has excellent fire spread resistance, which is the most important property of the nonflammable composition.

These compositions behave in the following manner during a fire.

-(10 to several tens per 100 parts of substrate)
A relatively large amount of filler (in part) forms a non-combustible, non-decomposable mineral barrier on the surface of the substrate during a fire.

Silicone (which is normally substantially incompatible with the substrate) migrates towards the surface of the substrate and decomposes under the action of temperature to form silica. This silica strengthens the mineral barrier formed by the filler.

Furthermore, the salts of metals also migrate under the action of temperature towards the surface of the substrate and are decomposed, producing mineral residues which also strengthen the mineral barrier. A small amount of salt is necessary for the composition to perform satisfactorily in case of fire.

EP 0,393,959 discloses non-combustible compositions based on special polymers containing certain special copolymers in a proportion of 40% or more. The basic constituents of these compositions are silicones and fillers, which are any compound of a metal of Group 2A of the Periodic Table of the Elements. The filler may be coated with an organometallic salt, in which case the organometallic salt facilitates dispersion of the filler in the mixture and is intimately bound to the filler within the nonflammable composition. These compositions are able to show good behavior against fires only if they contain the above-mentioned special copolymers, but only in very large amounts. When the composition contains a commodity polymer, the composition has a limiting oxygen index (LOI) of only about 25%.

US Pat. No. 4,273,691 also
Non-flammable compositions based on polyolefins are described. The composition contains silicone and a salt of a metal of Group 2A of the Periodic Table of the Elements, such as magnesium stearate, the intended use for which is cable insulation. According to the description of the patent, silica or clay can be mixed as a filler into the non-combustible composition, but the amount thereof is extremely small (less than 5 parts by weight per 100 parts of the substrate).

The composition described in US Pat. No. 4,273,691 is inferior in fire performance to the composition described in French patent 2,678,942. The LOI of the composition of French Patent 2,678,942 is about 3.
5% or more, compared to US Pat. No. 4,273,6
The LOI of the composition according to No. 91 is about 26.5% or less.

Even if the cable is installed vertically, the user of the cable can prevent the fire from spreading along the cable in the event of a fire, prevent the insulating material from melting at a high temperature, and drip the molten insulating material. And a much longer (about 10 seconds) flame application time than before (about 3 seconds).
e, the time required to apply the flame necessary to ignite the test piece), and the blocking effect is expected to continue. However, no existing composition sufficiently satisfies such a demand. That is, although some of the prior art compositions had LOI's above 35%, such values were obtained after a short burn time, not after a long burn time. It was However, there is a sufficient correlation between the results of tests performed on material specimens and the results of tests performed on wires insulated by these materials at long burning times. is there.

Furthermore, it is also a real problem to provide a refractory composition which is as inexpensive as possible.

[0012]

The object of the present invention is therefore to develop new compositions which have a high resistance to the spread of fire, in addition to the fire resistance properties of the compositions of the prior art after a long burning time. , Especially French Patent Application Publication No. 2,678,9
To improve the fire resistance after a long burning time of the composition described in No. 62.

In other words, the object of the present invention is to guarantee the fire spread resistance of the insulating material used in the cable industry in case of fire and to prevent the insulating material from melting and the molten insulating material from dripping. It is to meet the above demand by developing a solution. The insulating material is used especially as an insulating material for power cables, but it may also be used as an insulating material for telephone cables, optical cables or other cables.

[0014]

To this end, the invention comprises, as a substrate, a conventional polymer suitable for the insulation of cables and / or the formation of protective coatings, said substrate comprising a group 2A of the Periodic Table of the Elements. A composition in which a filler in the form of a compound excluding metal hydroxides and hydrates, silicone, and a metal salt is mixed, wherein the metal is calcium, magnesium, barium, or strontium. , Thallium and cerium, wherein the salt is dissociated from the filler inside the substrate.

Inside the composition of the invention, the metal salt is dissociated from the filler. That is, the filler is present without being affected by the salt. Therefore, the filler is not coated with the metal salt, the filler and the metal salt are dispersed in the substrate, and the filler is not necessarily bound to the substrate.

The combination of the fillers according to the invention with silicones and metal salts can meet the practical demand for high flame spread resistance, especially in compositions used for coating and / or insulating cables, Furthermore, the LOI can be significantly improved after a burn time of more than 10 seconds. For example, when the insulating material of the outer sheath of the cable is composed of the composition of the present invention, the dripping of the molten insulating material does not occur because the insulating material does not melt during a fire. The composition of the present invention also imparts excellent mechanical and electrical properties to the polymer used as the substrate. Depending on the choice of the constituents of the composition, it is possible to produce the mixture at an advantageous price, to process it in known conventional equipment and to recycle the unused material without any problems.

[0017]

More specifically, the use of the salts of the metals identified according to the invention, in particular the carboxylates or dicarboxylates of the metals, is particularly advantageous, these metal salts being the compositions of the prior art. It has been confirmed that the fire spread resistance of can be substantially enhanced. That is, the compositions of the present invention provide a limiting oxygen index (LOI) of greater than 40% even for combustion times greater than 10 seconds.

The filler / silicone system can be used in any polymer (homopolymers, thermoplastic elastomers, copolymers, etc.), especially when the salts of the metals specified according to the invention are present. Therefore, an inexpensive composition can be obtained by selecting a cheaper polymer.

The reason is that the metal salts specified according to the invention, like the salts used in the known compositions,
It moves toward the surface of the base material in the event of a fire and decomposes to generate a mineral residue, which has the function of strengthening the mineral barrier formed on the surface of the base material, and is used in the present invention. This is because the melting point of the salt is a fairly low value of about 80 ° C. to 250 ° C., and therefore the salt is decomposed very quickly in the early stage of the fire, and the mineral barrier is strengthened almost instantaneously.

The preferred salts that give the best results with respect to LOI are those based on calcium and magnesium. For example, stearates, palmitates and oleates of these metals are preferable.

The metal salt used in the present invention has mechanical and electrical properties suitable for use in the insulating material of cables, and has excellent thermal stability at the temperature used. It is preferable to select one that has.

Advantageously, the metal salt has a melting point below the decomposition onset temperature of the substrate.

In order for these salts to exhibit the above-mentioned functions, the concentration of the salt in the composition is preferably more than 2 parts by weight per 100 parts of the substrate. Of course, the composition of the present invention may contain two or more kinds of the metal salts specified above.

The filler is advantageously selected from calcium carbonate, magnesium carbonate and talc.

The main role of the filler is to agglomerate at high temperature to form a structure with capillary properties and absorb all the underlying flowable substances, especially silicone and metal salts, to the surface of the substrate. Transfer and form a mineral barrier with silicone and metal salts.

The filler is preferably present in the composition of the present invention in relatively high amounts, typically in the amount of 30 to 160 parts per 100 parts of substrate.

It is advantageous to add an additive having a layered structure to the filler. The additive is preferably mica, talc,
It is selected from kaolin, graphite, molybdenum sulfide and vermiculite.

Such additives further improve the fire resistance. The use of additives is particularly advantageous for the production of cable sheets when the intended use of the composition is the production of electrical and / or optical cables and lines. This is because the cable sheet requires a composition having a fire resistance higher than that required for a single-wire cable, depending on the sheet configuration (the number of cables, the distance between cables, etc.).

Silicones in the form of oils or gums preferably include polydimethylsiloxanes, polymethylphenylsiloxanes, polymethylalkylsiloxanes, polydiphenylsiloxanes, which contain unsaturated groups which favor crosslinking.
And may be selected from polysiloxanes terminated with reactive functional groups such as amine groups, acetoxy groups or alkoxy groups.

None of these silicones are substantially compatible with the substrate and readily migrate towards the surface of the substrate during a fire to form a silica layer. The formed silica layer strengthens the mineral barrier and protects the carbide formed.

The silicone is preferably present in the composition of the present invention in significant amounts, typically in the amount of 2 to 20 parts by weight per 100 parts of substrate.

The base material that can be used in the composition of the present invention is the first
In high density or low density polyolefins, especially high density, low density, very low density and ultra low density polyethylene, polypropylene, polybutylene terephthalate, polyamides, homopolymers such as polycarbonates. . These compounds are non-limiting examples and numerous homopolymers may be used within the scope of the invention. In particular, all homopolymers described in French Patent 2,678,942 or US Pat. No. 4,273,691 may be used. The contents of these documents are included in the present invention by reference.

When the composition according to the invention is based on one or more homopolymers, the LOI of the composition after a burning time of more than 10 seconds is greater than 30%, magnesium stearate as a salt About 3 when used
A very favorable result of 4% was observed.

The substrate may consist of one homopolymer, a mixture of homopolymers, or one or more homopolymers and one or more additional materials. May be composed of a mixture of Additional materials are, for example: copolymers of the type described in EP 0,393,959 (the contents of which are incorporated herein by reference), terpolymers, anhydrous carboxyl groups or Polymers grafted with polar groups such as carboxylic acid groups can be used.

The role of these additional materials is to improve the compatibility of the base material of the composition with the other constituents, and consequently to further improve the fire resistance of the composition. The additional material is preferably added to the substrate in a small amount of 1 to 20 parts per 100 parts of the substrate.

Substrates that can be used in the composition of the present invention in the second embodiment are, for example, the abovementioned European Patent No. 0,39.
Copolymers as described in 3,959. Within the scope of the present invention, copolymers capable of reacting with the filler in the event of a fire to form carbon on the surface (carbonization) are even more preferred. Examples of these copolymers are ethylene alkyl acrylate copolymers or ethylene vinyl acetate copolymers.

The substrate may consist of one homopolymer, a mixture of homopolymers, or one or more homopolymers and one or more additional materials. May be composed of a mixture of As additional materials, it is possible to use, for example: terpolymers, polymers grafted with polar groups such as carboxylic anhydride groups or carboxylic acid groups.

The role of the additional material is the same as that of the first embodiment, and its preferable concentration is also the same as that of the first embodiment.

The substrate may also be a thermoplastic elastomer, optionally containing additional materials as described above. An example of an elastomer is a mixture of polypropylene and crosslinked ethylene propylene diene monomer (EPDM).

Three types of constituents (filler, metal salt, silicone) are indispensable for forming a barrier on the surface of a burning substrate to prevent exchange of oxygen in air with combustible substances. It will be understood.

It may be advantageous to use thermoplastic elastomers or polyolefin-based elastomers as substrates, especially when the versatility of the product is considered as important as the fire spread resistance, especially for the final product.

In a particularly advantageous composition of the invention, the filler is calcium carbonate and the metal salt is magnesium stearate. The calcium carbonate / silicone system can be used for any polymer system (homopolymers, thermoplastic elastomers, copolymers, etc.), especially when magnesium stearate is used.

A preferred composition of the present invention contains -30 to 160 parts of CaCO ₃ , -20 parts of silicone, and -15 parts of a metal salt of a carboxylic acid per 100 parts of the substrate. I'm out.

Among the above-mentioned preferred compositions, -50 to 100 parts of CaCO ₃ , -10 to 20 parts of silicone, and -4 to 7 parts of magnesium stearate are contained per 100 parts of the base material. Things are extremely advantageous.

The composition of the present invention is a cable insulating material,
It is useful as an exterior material and an internal filling material.

Irrespective of the fire spread resistance targeted by the present invention, the composition of the present invention may or may not be crosslinkable.

Radiation crosslinking is preferred over peroxide crosslinking when the composition is crosslinkable. In the case of peroxide cross-linking, an additional cross-linking of the silicone with the substrate is formed, which results in the silicone not being able to migrate towards the surface in the event of fire and lacking the incombustibility treatment with the composition of the invention. You can't play a role you can't.

Of course, all compositions according to the invention contain conventional constituents used in nonflammable compositions for the purpose of facilitating the production of the composition, preventing aging and oxidation, and the like. You can These ingredients are known to those skilled in the art and will not be described in detail here.

[0049]

EXAMPLES The compositions of the invention are explained in more detail below on the basis of examples. These examples are merely representative examples, and the present invention is not limited to these examples.

Examples 1, 2 and 5-8 are examples of compositions which are particularly suitable for insulating and / or protecting cables, and Examples 3 and 4 are materials which are particularly suitable for coating or insulating flexible tubes. Is an example of.

Example 1 Composition Linear polyethylene: 80 to 100 parts Polyethylene grafted with maleic anhydride: 2 to 12 parts Silicone oil (for example, 12500ST manufactured by Dow): 7 to 20 parts Chalk (CaCO ₃ ): 70-100 parts Magnesium stearate: 5-10 parts Anti-aging agent / Antioxidant: 0.6 parts Characteristics Ultimate tensile strength (MPa): 10.8 Elongation at break (%): 725 After maintaining at 80 ° C for 7 days Ultimate tensile strength (MPa): 9.2 Elongation at break after maintaining at 80 ° C for 7 days (%): 640 LOI (burning time of 10 seconds) (limit oxygen index): 32% Pressurized deformation at 80 ° C (%) : 5 This mixture has excellent thermomechanical properties, so that it has no manufacturing problems, is inexpensive, and can be reused.

Example 2 Composition Low-density polyethylene (0.918): 65-80 parts Low-density polyethylene (0.918): 15-30 parts Polyethylene grafted with maleic anhydride: 2-12 parts Silicone oil (for example, Dow Co. 10000ST): 7~20 parts chalk (CaCO _3): 70 to 120 parts magnesium stearate 4-8 parts antioxidant / antioxidant: 0.6 part characteristic ultimate tensile strength (MPa): 9 0.7 Elongation at break (%): 700 Ultimate tensile strength (MPa) after maintaining at 80 ° C. for 7 days: 8.7 Elongation at break (%) after maintaining at 80 ° C. for 7 days: 630 LOI after burning time of 10 seconds : 31% Pressurized deformation at 80 ° C (%): 10 Fire resistance of wire (IEC standard 332-1) This composition also satisfies the basic requirements of the present invention.

Example 3 Composition Polyolefin Elastomer (ENGAGE CL 8001 made by Dow Plastics): 20-40 parts Polyolefin Elastomer (ENGAGE CL 8003 made by Dow Plastics): 60-80 parts Polyethylene grafted with maleic anhydride : 4 to 8 parts Silicone rubber: 5 to 18 parts Choke: 60 to 110 parts Magnesium stearate: 5 to 10 parts Anti-aging agent / antioxidant (Irganox 1010 manufactured by CIBA GEIGY): 0.6 parts Characteristic limit Tensile strength (MPa): 13.4 Elongation at break (%): 730 Ultimate tensile strength after maintaining at 80 ° C for 7 days (MPa): 12.8 Elongation at break after maintaining at 80 ° C for 7 days (%): 750 10 LOI after burning time of 2 seconds: 31%, pressure deformation at 80 ° C (%) 40 Shore A hardness: 85 Fire resistance of wire (IEC standard 332-1) This composition has a high value of elongation at break and ultimate tensile strength, and also has high resistance to the spread of flame. , With particular advantage in the manufacture of flexible tubes.

The maleic anhydride graft-polymerized polyethylene used in the above examples serves to enhance flame spread resistance.

Example 4 Composition Polyolefin-based elastomer (ENGAGE 8001 manufactured by Dow Plastics): 10 to 30 parts Polyolefin-based elastomer (ENGAGE 8003 manufactured by Dow Plastics): 30 to 60 parts Polypropylene (Hifax CA 10A manufactured by Montell) ): 20 to 40 parts Chalk (Calcite MX 20): 50 to 90 parts Silicone oil (12,500ST manufactured by Dow Corning): 5 to 15 parts Magnesium stearate: 3 to 10 parts Antioxidant: 0.5 parts Properties Ultimate tensile strength (MPa): 16.3 Elongation at break (%): 630 Ultimate tensile strength after maintaining at 80 ° C for 7 days (MPa): 16.3 Elongation at break after maintaining at 80 ° C for 7 days (%): 650 LOI after 10 seconds burning time: 30% 80 The deform under pressure (%): 40 Shore A hardness: 87 wire rod of refractory (1 IEC standards 332).

Example 5 Composition Low density polyethylene: 77 parts Polyethylene grafted with maleic anhydride: 10 parts Calcium carbonate: 50 parts Silicone: 13 parts Magnesium stearate: 5 parts Antioxidant: 0.5 parts Characteristics 10 seconds LOI after burning time: 40%.

Example 6 Composition Thermoplastic elastomer (Santoprene): 100 parts Polyethylene grafted with maleic anhydride: 2 parts Calcium carbonate: 40 parts Aminosilicone oil: 9.5 parts Magnesium stearate: 6 parts Antioxidant: 0 .5 part characteristics LOI after burning time of 10 seconds: 33% ultimate tensile strength (MPa): 8 elongation at break (%): 350.

Example 7 Composition Low density polyethylene: 82 parts Polyethylene grafted with maleic anhydride: 5 parts Calcium carbonate: 80 parts Copolymer of siloxane and methylhydromethyloctyl: 13 parts Magnesium stearate: 5 parts Antioxidant: 0.5 part characteristic LOI after burning time of 10 seconds: 40%.

Example 8 Composition Polyethylene: 80 parts Polypropylene: 20 parts Polyethylene grafted with maleic anhydride: 5 parts Magnesium carbonate MgCO ₃ : 80 parts Silicone oil: 13 parts Magnesium stearate: 5 parts Antioxidant: 0.5 Part characteristics LOI after burning time of 10 seconds: 32%.

Example 9 Composition Ethylene methyl acrylate copolymer: 100 parts Calcium carbonate: 80 parts Polydimethylsiloxane: 10 parts Calcium stearate: 5 parts Antioxidant: 0.5 parts Properties LOI after burning time of 10 seconds: 31% .

Any of the above compositions can be used as a coating and / or insulating material for electrical or optical cables, especially for coating and / or insulating materials for products where polyvinyl chloride has previously been used as the preferred insulating material. Can be used as

The combination of constituents consisting of a compound of a metal of group 2A of the Periodic Table of the Elements, a silicone and a salt of a metal such as calcium, magnesium, barium, strontium, thallium and cerium is completed. It may be considered as one system in a mixture, the basic properties of which are to ensure the spread resistance of the mixture (for example in case of fire) and to prevent the mixture from melting under high temperature and to make the molten mixture. Is to prevent dripping. Other components may be selected for each application depending on the desired properties.

In particular, the combination of constituents consisting of: calcium carbonate CaCO ₃ , silicone, magnesium stearate, regardless of the proportion of these constituents in the substrate, It is particularly advantageous for the invention.
With these combinations, the LOI is 30% or more even after a burning time of more than 10 seconds, and since magnesium stearate is used as the metal salt, a very inexpensive composition can be obtained.

When a filler having a laminated structure is mixed in the filler,
LOI can be further improved. In fact, it has been determined that such additives enhance the mineral barrier formed during polymer combustion.

As additives, for example, substances such as mica, talc, kaolin, graphite, molybdenum sulphide and vermiculite can be used. The particle size of the particles having a laminated structure is preferably selected from the range of 0.5 to 20 microns,
In particular, it is about 10 microns. The proportion of the additive is, for example, 0.5 to 20 parts by weight per 100 parts of the base material, that is, the polymer, and preferably 1 to 10 parts by weight per 100 parts of the base material.

Table 1 shows the technical effect obtained by using graphite in laminated form as an additive to the filler. Composition C1 is a comparative example, Composition I1 is a composition of the present invention in which the filler does not contain a laminated structure additive,
Compositions I2 and I3 each represent a composition of the invention in which the graphite additive in the form of a laminate is added to the calcium carbonate filler in proportions of 1.25 parts and 3.5 parts, respectively, per 100 parts of polyethylene.

[0067]

[Table 1]

It is possible to obtain LO even if a small amount of laminated graphite is mixed.
It was confirmed that I was considerably improved. That is, composition I
13% for composition I2 compared to 1 and 3 for composition I3
An increase in LOI of 3% is observed.

At present, graphite is the preferred material as an additive to the fillers of the present invention. Other materials such as the above-mentioned mica, kaolin, talc, molybdenum sulfide and vermiculite can likewise significantly improve the LOI when incorporated into fillers as additives in laminated form.

For example, Table 2 shows that the composition I4 of the present invention containing no additive has a very excellent LOI as compared with the composition C2 containing no metal salt of the present invention. 3.5 per 100 parts of polyethylene
It is shown that the compositions I5 and I6 according to the invention, each containing parts by weight of graphite and 5 parts by weight of mica respectively, have a higher LOI than the composition without additives I4.

[0071]

[Table 2]

The mixture of the present invention is kneaded in a conventional apparatus such as a Buss Ko kneader or a twin-screw extruder, and is made into a form of exterior, insulating material or interior using, for example, a conventional PVC (PVC) extrusion line. It can be extruded. Additives optionally used for the three essential constituents and fillers of the present invention may be added directly to the substrate during kneading. Alternatively, it may be advantageous to first mix these (three) components and add them to the substrate in the form of a mixture.

Of course, the invention is not limited to the embodiments described. All compositions predictable from the universal concept provided by the description herein are included in the present invention.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical indication location C08L 23/00 LCQ C08L 23/00 LCQ 83/04 LRX 83/04 LRX (72) Inventor Alan ・Chilly France, 91680 Briillères Le Châtel, Lieu de la Liberation, 35

Claims (29)

[Claims] 1. A base material comprising a conventional polymer suitable for the insulation of cables and / or the formation of protective coatings, said base material comprising hydroxides and hydrates of metals of Group 2A of the Periodic Table of the Elements. A filler in the form of a compound excluding, silicone,
A composition in which a metal salt is mixed, wherein the metal is
A composition having high flame spread resistance, characterized in that it is selected from calcium, magnesium, barium, strontium, thallium and cerium, and the salt is dissociated from the filler inside the substrate. 2. Composition according to claim 1, characterized in that the salt is present in the composition in a concentration of more than 2 parts by weight per 100 parts of substrate. 3. The composition according to claim 1, wherein the melting point of the salt is lower than the decomposition initiation temperature of the base material. 4. The composition according to claim 1, wherein the salt is selected from salts obtained from carboxylic acids and salts obtained from dicarboxylic acids. 5. The method according to claim 1, wherein the salt is selected from stearates, palmitates and oleates of any one of the metals. Composition. 6. The composition of claim 5, wherein the salt is selected from calcium stearate and magnesium stearate. 7. The filler is 30 to 100 parts per 100 parts of the base material.
Composition according to any one of claims 1 to 6, characterized in that it is present in the composition in a weight concentration of 160 parts. 8. The composition according to claim 1, wherein the filler is selected from calcium carbonate, magnesium carbonate and talc. 9. The composition according to claim 1, wherein the filler further comprises an additive composed of a substance having a laminated structure. 10. The composition according to claim 9, wherein the substance having a laminated structure is selected from graphite, mica, kaolin, talc, molybdenum sulfide and vermiculite. 11. The additive is 0.1% per 100 parts of the substrate.
11. Composition according to any one of claims 8 to 10, characterized in that it is present in a weight concentration of 5 to 20 parts. 12. The additive is 1 to 100 parts of the substrate.
2. A weight concentration of 10 parts is present.
The composition of claim 1. 13. The particle size of a material having a laminated structure is 0.5 to 20 μm.
13. The composition according to any one of 1 to 12. 14. The composition of claim 13, wherein the particle size of the particles is less than 10 microns. 15. Silicone in the form of oil or rubber,
Selected from polydimethylsiloxanes, polymethylphenylsiloxanes, polymethylalkylsiloxanes, polydiphenylsiloxanes, and polysiloxanes having reactive functional groups such as amine groups, acetoxy groups or alkoxy groups at the ends. The composition according to any one of claims 1 to 14, characterized in that 16. Silicone is 2 to 100 parts by weight of the base material.
16. Composition according to any one of claims 1 to 15, characterized in that it is present in the composition in a concentration by weight of 20 parts. 17. A composition according to claim 1, wherein the substrate is composed of one homopolymer or a mixture of homopolymers. Stuff. 18. The composition of claim 17, wherein the substrate comprises an additional material selected from copolymers, terpolymers, and polymers grafted with polar groups. 19. The composition according to claim 1, wherein the substrate is composed of one type of copolymer or a mixture of a plurality of copolymers. 20. The composition of claim 19, wherein the substrate comprises an additional material selected from the group consisting of terpolymers and polymers graft polymerized with polar groups. 21. The composition according to claim 18, wherein the polar group is selected from an anhydrous carboxyl group and a carboxylic acid group. 22. The filler is calcium carbonate,
22. The composition according to any one of claims 1 to 21, wherein the salt is magnesium stearate. 23 to 30 to 16 parts by weight of the base material
0 parts of CaCO ₃ , 2 to 20 parts of silicone, 2 to
22. A composition according to any one of claims 1 to 21, characterized in that it comprises 15 parts of a metal salt. 24. 50 to 10 per 100 parts by weight of the substrate.
0 parts CaCO ₃ , 7 to 20 parts silicone, 4 to
A metal salt of 7 parts and a metal salt of 7 parts.
1. The composition according to any one of 1. 25. The composition according to claim 23 or 24, wherein the composition further comprises 4.5 to 6.5 parts of polyethylene grafted with maleic anhydride. 26. The composition according to any one of claims 1 to 25, wherein the base material is a thermoplastic elastomer. 27. The composition according to any one of claims 1 to 25, wherein the base material is a polyolefin-based elastomer. 28. The composition according to any one of claims 1 to 27, wherein the substrate is crosslinkable. 29. The silicone is 10,000-1.
29. A composition according to any one of claims 1 to 28 having a viscosity of, 000,000 centistokes.