DE102008050932A1 - Conductive liquid elastomer, useful e.g. in injection molding process and for printing on non-woven fabrics, comprises rubber having e.g. peroxidic crosslinkable functional groups, crosslinker, hydrosilylation catalyst, filler and coagent - Google Patents

Abstract

Conductive liquid elastomer comprises (a) a rubber having at least two peroxidic crosslinkable functional groups and/or functional groups crosslinkable by hydrosilylation, (b) a crosslinker comprising at least one hydrosiloxane or its derivatives with at least two silicon hydride (SiH) group per molecule in an agent, (c) a hydrosilylation catalyst system and/or peroxide, (d) an electrically conductive filler and (e) coagent. An independent claim is included for preparing the conductive liquid elastomer comprising mixing the components (a), (d), (e) and optionally further additives (f), subsequently adding the components (b) and (c) and homogenizing the mixture (single component system).

Description

Technical area

The Invention relates to conductive liquid elastomers, a process for their preparation and their use, in particular for printing on nonwovens.

State of the art

The document JP 09328591 A describes a thermoplastic elastomer composition made from a halogenated polymer, a crosslinked liquid elastomer, a plasticizer, and electrically conductive fillers, including metals.

In document JP 05224501 A discloses the use of a conductive rubber compound for applications in photosensitive drums or pressure rollers, in which in particular an electrostatic charging of the surface is to be avoided.

The font JP 2005116406 A describes a conductive mixture containing metallic fillers and silicone as a liquid elastomer.

Presentation of the invention

Of the Invention is based on the object, an electrically conductive To provide compound that has such a low viscosity has a carrier material by means of conventional Printing systems can be printed with it. Furthermore the electrical conductivity should be high enough that electrical signals can be transmitted.

Of Furthermore, the material should have good adhesion properties on the carrier material, preferably a nonwoven fabric, and at temperatures of preferably do not crosslink at 120 ° C to the substrate to harm. Damage to the substrate by vulcanization, ie increased temperature or pressure, may generally not be done.

The Extensibility of the compound is to be maintained substantially the conductivity should be at least 20% to avoid spalling to avoid from the surface of the carrier material. For the same reason, the material may be referred to below as a liquid elastomer is not brittle and must be at high dimensional stability resistant to aging.

For sufficient electrical conductivity are high fill levels required with electrically conductive fillers, however, adversely affect processing performance.

The known solid rubbers can not be used because they are at high fill levels with electrically conductive fillers become brittle and also a high viscosity exhibit.

Known Solutions with liquid elastomers are made on the basis of silicones. However, silicones show in terms of media resistance Alkalis, for example, washing liquor, especially at elevated temperatures significant weaknesses. In addition, the Use of silicones in the automotive sector undesirable.

A Another object of the invention was therefore in the provision a conductive liquid elastomer that has no Contains silicone.

The Solution of the task is with the characteristics of Claim 1 reached.

The is liquid elastomer according to the invention a mixture of a rubber (A) with at least two over Hydrosilylation and / or peroxidically crosslinkable functional Groups, a crosslinker (B), the at least one hydrosiloxane or Hydrosiloxane with on average at least two SiH groups per Molecule and a hydrosilylation catalyst system (C) and / or at least one peroxide, an electrically conductive Filler (D) and a coagent (E).

The Dependent claims represent advantageous embodiments of Invention subject matter.

• – 0,1 bis 20 phr des Vernetzers (B), wobei im Falle der Vernetzung über Hydrosilylierung das Verhältnis der SiH-Gruppen zu den durch diese vernetzbaren funktionellen Gruppen bei 0,2 bis 20 liegt, bevorzugt bei 0,5 bis 5, besonders bevorzugt bei 0,8 bis 1,2,
• – 0,05 bis 100000 ppm, bevorzugt 0,1 bis 5000 ppm des Hydrosilylierungs-Katalysatorsystems (C),
• – 5 bis 800 phr des elektrisch leitfähigen Füllstoffes (D), bevorzugt 200 bis 600 phr, und
• – 0,1 bis 30 phr, bevorzugt 1 bis 10 phr, des Coagens (E).

The following composition of the liquid elastomer has proven itself in accordance with the invention.

• - 0.1 to 20 phr of the crosslinker (B), wherein in the case of crosslinking via hydrosilylation, the ratio of the SiH groups to the crosslinkable by these functional groups is from 0.2 to 20, preferably from 0.5 to 5, especially preferably at 0.8 to 1.2,
• 0.05 to 100,000 ppm, preferably 0.1 to 5000 ppm of the hydrosilylation catalyst system (C),
• From 5 to 800 phr of the electrically conductive filler (D), preferably from 200 to 600 phr, and
• 0.1 to 30 phr, preferably 1 to 10 phr, of the coagent (E).

The Abbreviation phr means parts per hundred rubber, so there the parts by weight based on one hundred parts by weight of the rubber (A) on; In ppm, parts by weight refer to the mixture. The specified ranges of the individual components allow one very specific adaptation of the liquid elastomer to the desired properties.

Prefers the rubber (A) has two via hydrosilylation and / or peroxidically crosslinkable functional groups; especially two terminal vinyl groups.

The rubber (A) is preferably made of rubber of the following groups:
Ethylene-propylene-diene rubber (EPDM), wherein the diene used is preferably a norbornene derivative having a vinyl group, preferably 5-vinyl-2-norbornene, isobutylene-isoprene-divinylbenzene rubber (IIR terpolymer), polyisobutylene rubber ( PIB), isobutylene-isoprene rubber (IIR), butadiene rubber (BR), styrene-butadiene rubber (SBR), styrene-isoprene rubber (SIR), isoprene-butadiene rubber (IBR), isoprene rubber ( IR), acrylonitrile butadiene rubber (NBR), chloroprene rubber (CR), acrylate rubber (ACM), partially hydrogenated butadiene rubber (BR), styrene-butadiene rubber (SBR), vinyl group-functionalized perfluoropolyether rubber and functionalized rubber of the aforementioned groups, wherein the functionalization was carried out in particular with maleic anhydride or derivatives thereof.

In a particular embodiment of the invention contains rubber (A) at least two selected from the aforementioned groups Rubbers. Advantageously, the average molecular weight of the rubber (A) is from 5,000 to 100,000 g / mol, more preferably between 5000 and 60000 g / mol.

• – eine SiH-enthaltende Verbindung der Formel (I):
  
  wobei R¹ für eine gesättigte Kohlenwasserstoffgruppe oder für eine aromatische Kohlenwasserstoffgruppe steht, die monovalent ist, 1 bis 10 Kohlenstoffatome hat und substituiert oder unsubstituiert ist, wobei a für ganzzahlige Werte von 0 bis 20 und b für ganzzahlige Werte von 0 bis 20 steht, sowie R² für eine divalente organische Gruppe mit 1 bis 30 Kohlenstoffatomen oder Sauerstoffatomen steht,
• – eine SiH-enthaltende Verbindung der Formel (II):
  
  und/oder eine SiH-enthaltende Verbindung der Formel (III):
  

As crosslinker (B) is preferably used

• An SiH-containing compound of the formula (I):
  
  wherein R ^{1 represents} a saturated hydrocarbon group or an aromatic hydrocarbon group which is monovalent, has 1 to 10 carbon atoms and is substituted or unsubstituted, where a is integer values of 0 to 20 and b is integer values of 0 to 20, and R ^{2 is} a divalent organic group having 1 to 30 carbon atoms or oxygen atoms,
• An SiH-containing compound of the formula (II):
  
  and / or an SiH-containing compound of the formula (III):
  

Of the Crosslinker (B) is particularly preferably selected from poly (dimethylsiloxane-co-methylhydrosiloxane), Tris (dimethylsilyloxy) phenylsilane, bis (dimethylsilyloxy) diphenylsilane, Polyphenyl (dimethylhydrosiloxy) siloxane, methylhydrosiloxane-phenylmethylsiloxane copolymer, Methylhydrosiloxane-alkylmethylsiloxane copolymer, polyalkylhydrosiloxane, Methylhydrosiloxane-diphenylsiloxane-alkylmethylsiloxane copolymer and / or polyphenylmethylsiloxane-methylhydrosiloxane.

Prefers Peroxides used as crosslinker (B) are 2,5-dimethyl-2,5-di [tert-butylperoxy] hex-3-yne, di-tert-butyl peroxide, 2,5-dimethyl-2,5-di [tert-butylperoxy] hexanes, tert-butylcumyl peroxide, Di [tert-butylperoxyisopropyl] benzene, dicumyl peroxide, butyl 4,4-di (tert-butylperoxy) valerate, 1,1-di (tert-butylperoxy) -3,3,5-trimethylcyclohexane, tert-butyl peroxybenzoate, Di (4-methylbenzoyl) peroxide, dibenzoyl peroxide and di (2,4-dichlorobenzoyl) peroxide.

In a particular embodiment of the invention contains the Crosslinker (B) at least two of the aforementioned compounds, thus also a combination of the two possible crosslinking mechanisms (catalyzed hydrosilylation and peroxidic crosslinking) realized can be.

The Concentration of the crosslinker (B) is generally 0.1 to 20 phr, preferably 0.2 to 10 phr, and more preferably 0.5 to 5 phr.

The in the case of crosslinking via hydrosilylation compulsory Catalyst system (C) is preferably selected from platinum (0) -1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex, Hexachloroplatinic acid, dichloro (1,5-cyclooctadiene) platinum (II), Dichloro (dicyclopentadienyl) platinum (II), tetrakis (triphenylphosphine) platinum (0), chloro (1,5-cyclooctadiene) rhodium (I) dimer, Chlorotris (triphenylphosphine) rhodium (I) and / or dichloro (1,5-cyclooctadiene) palladium (II), optionally selected in combination with a kinetic regulator from dialkyl maleate, in particular dimethyl maleate, 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclosiloxane, 2-methyl-3-butyn-2-ol and / or 1-ethynylcyclohexanol.

In In a particular embodiment of the invention are mixtures of the aforementioned compounds as a hydrosilylation catalyst system (C) used.

Of the contains electrically conductive filler (D) advantageously metal particles that are very fine, but also coarse could be.

According to the invention preferred Fillers (D) are metallic substances, in particular with Silver coated copper flakes, glass fibers, glass beads, metallic Short fibers (eg of copper) and conductive carbon black, using furnace, flame and / or channel carbon black, as well as combinations thereof.

When Metallic fillers are both pure metals, as well metallic alloys or metals coated substrates (supported systems) can be used. It can be filler particles can be used in any shape, so both spherical and rod-shaped or fibers or combinations thereof. Besides, they are conductive metallic filler particles in combination Usable with low-melting alloys used in vulcanization melt and then solidify again and thus to an increase lead the conductivity.

Other "co-fillers" are silicic acid, generally metal oxides, metal hydroxides, carbonates, silicates, surface-modified or hydrophobicized, precipitated and / or pyrogenic silicas, surface-modified metal oxides, surface-modified metal hydroxides, surface-modified carbonates such as chalk or dolomite, surface-modified silicates such as Kaolin, calcined kaolin, talc, silica flour, silica, phyllosilicates, glass spheres, fibers and / or organic fillers, such as wood flour and / or cellulose. In a particular embodiment of the invention, silver-coated glass fibers are used as the electrically conductive filler (D).

The Coagent (E) is advantageously selected from 2,4,6-tris (allyloxy) -1,3,5-triazine (TAC), triallylisocyanurate (TAIC), 1,2-polybutadiene, 1,2-polybutadiene derivatives, Allyl ethers, in particular trimethylolpropane diallyl ether, allyl esters, in particular diallyl phthalates, diacrylates, triacrylates, in particular Trimethylpropane triacrylate, dimethacrylates and / or trimethacrylates, in particular trimethylolpropane trimethacrylate (TRIM), triallylphosphonic acid esters and / or butadiene-styrene copolymers having at least two Hydrosilylation to the rubber (A) bonding functional Groups.

• – Alterungsschutzmittel, beispielsweise UV-Absorber, UV-Screener, Hydroxybenzophenonderivate, Benzotriazoderivate oder Triazinderivate,
• – Antioxidantien, zum Beispiel sterisch gehinderte Phenole, Lactone oder Phosphite,
• – Ozonschutzmittel, zum Beispiel paraffinische Wachse,
• – Flammschutzmittel,
• – Hydrolyseschutzmittel, wie Carbodiimidderivate,
• – Haftvermittler, wie Silane mit über Hydrosilylierung an die Kautschukmatrix anbindenden funktionellen Gruppen, zum Beispiel mit Vinyltrimethoxysilan, Vinyltriethoxysilan, mit funktionalisierten Kautschuken modifizierte Polymere, wie Maleinsäurederivate, zum Beispiel Maleinsäureanhydrid,
• – Entformungsmittel bzw. Mittel zur Reduzierung der Bauteilklebrigkeit, wie zum Beispiel Wachse, Fettsäuresalze, Polysiloxane, Polysiloxane mit über Hydrosilylierung an die Kautschukmatrix anbindenden funktionellen Gruppen und/oder
• – Farbstoffe und/oder Pigmente
• – Weichmacher und/oder
• – Verarbeitungshilfsmittel

Furthermore, in one particular embodiment, the conductive liquid elastomer may contain an additive (F) or additive mixture (F) selected from the following groups:

• Anti-aging agents, for example UV absorbers, UV screeners, hydroxybenzophenone derivatives, benzotriazoderivatives or triazine derivatives,
• Antioxidants, for example sterically hindered phenols, lactones or phosphites,
• - antiozonants, for example paraffinic waxes,
• - flame retardants,
• Hydrolysis protectants, such as carbodiimide derivatives,
• Adhesion promoters, such as silanes with functional groups linking via hydrosilylation to the rubber matrix, for example with vinyltrimethoxysilane, vinyltriethoxysilane, with polymers modified with functionalized rubbers, such as maleic acid derivatives, for example maleic anhydride,
• Mold release agents or agents for reducing component tackiness, such as, for example, waxes, fatty acid salts, polysiloxanes, polysiloxanes with functional groups which bond to the rubber matrix via hydrosilylation and / or
• - Dyes and / or pigments
• Plasticizer and / or
• - processing aids

to Preparation of a liquid elastomer according to the invention is first rubber (A), the filler (D), the coagent (E) and optionally the at least one additive mixed, then become the crosslinker (B) and optionally the hydrosilylation catalyst system (C) added and the mixture homogenized. The production takes place either as a one- or two-component system.

At the Monocomponent system, the addition of the crosslinker (B) and the Hydrosilylation catalyst system (C) to the aforementioned others Components in a system or container. In the two-component system on the other hand, the crosslinker (B) and the hydrosilylation catalyst system (C) separated from each other, ie in two systems or containers, each first with a part of the mixture of the rest Components mixed until homogeneous distribution before both systems, So the mixture with the crosslinker (B) and the mixture with the Hydrosilylation catalyst system (C), are combined, and the two components are homogenized. The two-component system has the advantage that the two mixtures in which the crosslinker (B) and the hydrosilylation catalyst system (C) from each other are separated, can be stored longer than a mixture containing both the crosslinker (B) and the hydrosilylation catalyst system (C) contains.

The inventive liquid elastomer is by an injection molding or (liquid) injection molding process ((L) IM), by pressing or a compression molding method (CM), by a transfer molding method (TM) or by one of them each derived method, a printing method, such as Screen printing, processed by caterpillar application, dipping or spraying.

The conductive liquid elastomers are in a variety of applications. It is conceivable, for example, a use for heating, z. B. in seat heaters of motor vehicles or for Heating of textiles, shoes and other objects.

preferred The conductive materials are used as conductor tracks, which can be produced in printing processes, in particular for printing on textiles, packaging or in the electronics industry, z. B. for printing electronic circuits.

When Support materials for the invention Products are, for example, all thermoplastics, TPE, TPU, Wood, cork and foams, which increased by vulcanization, so Temperature or pressure will not be damaged.

The According to the invention are liquid elastomers to be used in all areas where the carrier material is elastic in any form, be it by inherent elasticity or jointing. Due to the low viscosity of the conductive liquid elastomers are for their processing Printing method applicable.

According to the invention a variety of elastomers preparable either by hydrosilylation or are vulcanizable by peroxide crosslinking. The conductive Depending on the field of application, materials may be possible very different product requirements, such as media resistance, tensile strength, Compression set, abrasion, etc. adapt very well.

The products of the invention, which are hydrosilylated, especially in the presence of a platinum catalyst, show a particularly high purity.

The conductive liquid elastomers are not just as Tracks in textiles usable, but also as materials for use in the field of food, drinking water, Medical technology and pharmacy and / or in the field of electronics, Sensor technology, computer technology, in mechanical and automotive engineering.

Furthermore can the products of the invention as materials for seals, such as loose or integrated Seals, such as O-rings or U-rings, adhesive seals, Soft metal seals or impregnations, for Coatings, membranes or adhesives of hoses, Valves, pumps, filters, humidifiers, reformers, storage vessels (Tanks), vibration absorbers, acoustically active components, for Coatings of fabrics, nonwovens, electromagnetic shielding, Tires, brake collars, brake parts, axle boots, bellows and / or for elastomeric floor coverings and / or profiles be used to this example, with an electronic To provide sensor technology.

Out The products according to the invention are therefore preferred For example, O-rings or gaskets for dialysis machines produced in medical technology.

For example is an electrically conductive O-ring, which is coated with a protective layer. If this protective layer is damaged, the material may of the O-ring with the periphery of the housing in contact come and with appropriate sensors the degree of damage be measured.

About that In addition, products of the invention Elastomers, given that they have almost no or at all have no silicone, the advantage that the permeation of fluids or gases compared to silicone rubber substantially lower is.

There the conductive liquid elastomers according to the invention have a low viscosity, they can using conventional printing equipment for printing Carrier materials of all kinds are used. Prefers are the mixtures of the invention for printing used by textiles, especially nonwovens.

The Crosslinking of the liquid elastomers takes place when used the hydrosilylation at temperatures below 120 ° C, what their suitability for the production of printed nonwovens in addition increased, otherwise thermal damage the carrier materials could enter.

If for the substrate higher temperatures tolerable (<180 ° C), so is a peroxide crosslinking at higher temperatures possible.

The have elastomers according to the invention also very good stretching properties. The extensibilities amount to at least 20%, without that Material thereby embrittled or from the carrier surface flakes off. According to the invention, the conductivity remains the electrically conductive elastomer at an elongation at the same level. Be different strain cycles go through with a measuring apparatus, the Conductivity values - taking into account the typical hysteresis for elastomers - almost reproduced become. Under elongation in the range of 20%, the high electrical remains Conductivity, for example, almost completely receive. Conductor tracks from the invention Products are thus also suitable for repeated stretching Signal transmission.

The Materials according to the invention are dimensionally stable and show elastic properties despite high filling levels; their adhesion to the substrates is exceptional high.

Embodiment of the invention

in the An embodiment of the invention will be described below. without thereby limiting it to this example.

Of the Rubber (A), the electrically conductive filler (D) and the Coagens (E) are mixed in a mixer, a SpeedMixer DAC 400 FVZ of the company Hausschild & Co. KG, at temperatures between 30 ° C and 60 ° C to mixed to a homogeneous distribution of the components. Subsequently become a crosslinker (B) and a hydrosilylation catalyst system (C) is added, and the mixture is further to a homogeneous Distribution of components mixed.

When Rubber (A) becomes the polyisobutylene (PIB) Epion 200 from the company Kanneka used.

When Crosslinker (B) becomes the poly (dimethylsiloxane-co-methylhydrosiloxane) CR 300 used by the company Kanneka, containing more than 3 SiH groups contains per molecule and therefore to build networks for difunctional vinyl rubbers such as polyisobutylene with two vinyl groups, especially well suited.

When Hydrosilylation catalyst system (C) becomes a so-called Karstedt catalyst uses, in this case, platinum (0) -1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex x931410 (Kanneka), which is a 5% by weight solution in o- / p-xylene mixture in combination with dimethyl maleate (Merck) is used as a kinetic regulator.

When Filler (D) are silver-coated copper flakes (Conduct-o-fil SC230F9.5) or silver-coated glass fibers (Conduct-o-fil SF82TF20) used by the US company Potters Industries. Furthermore is added as a conductive carbon black Ketjenblack EC 600 (Ketjenblack International Corporation).

When Coagens (E) is triallyl isocyanurate (TAIC) from Kettlitz used.

Composition of Exemplary Elastomer:

• 100 phr of polyisobutylene (Epion 200)
• 0.4 ml of platinum (0) -1,3-divinyl-1,1,3,3-tetramethyldisiloxane
• 76 μl dimethylmaleate
• 144 phr silver-coated copper flakes (Conduct-o-fil SC230F9.5)
• 5 phr conductive carbon black (Ketjenblack EC 600)
• 1 phr triallyl isocyanurate

These Components were homogenized in the above speed mixer. By means of a template were printed conductors on an elastic Nonwoven fabric as a substrate aufgerakelt. The conductor tracks thus produced are dimensionally stable and do not melt. Subsequently the webs were vulcanized under pressure at 120 ° C; alternative A pressureless vulcanization is also possible.

The Viscosity of the mixture was determined by means of a Göttfert Rheovulkameters determined and yielded 0.8106 kPas. To determine the Conductivity was used in an apparatus in which Clamp the nonwoven fabrics printed with conductive elastomer to let. The clamping device consists of metal rods, with which the conductivity measurement after the 4-point method can be made. The stretching of the printed Material is powered by an electrically operated thread feed generated. By means of this apparatus, the conductivity be measured under strain, with multiple cycles can be passed through. The control of the measuring device as well as the evaluation via a specially developed software.

• 95 mittlerer Startwiderstand: 0.95 Ohm
• mittlerer Widerstand nach 2 mm Dehnung: 1.58 Ohm
• 3 mittlerer Widerstand nach 4 mm Dehnung: 1.83 Ohm
• 30.75 mittlerer Widerstand bei maximaler Dehnung (18%): Ohm

Using the aforementioned apparatus, the following resistance values were determined for the exemplary elastomer mixture:

• 95 mean starting resistance: 0.95 ohms
• average resistance after 2 mm elongation: 1.58 ohms
• 3 average resistance after 4 mm elongation: 1.83 ohms
• 30.75 average resistance at maximum strain (18%): ohms

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - JP 09328591 A [0002]
• JP 05224501 A [0003]
• - JP 2005116406 A [0004]

Claims (26)

Conductive liquid elastomer, comprising a rubber (A) with at least two over Hydrosilylation and / or peroxidically crosslinkable functional Groups, a crosslinker (B), the at least one hydrosiloxane or a hydrosiloxane derivative having on average at least two SiH groups per molecule and a hydrosilylation catalyst system (C) and / or at least one peroxide, one electrically conductive filler (D) and a coagent (E). Conductive liquid elastomer after Claim 1, which additionally contains an additive (F) or an additive mixture (F) contains. Conductive liquid elastomer after one of the preceding claims, wherein the rubber (A) more than two functionalizable via hydrosilylation functional Has groups. Conductive liquid elastomer after one of the preceding claims, wherein at least two the via hydrosilylation and / or peroxidic crosslinkable functional groups of the rubber (A) terminal vinyl groups are. Conductive liquid elastomer after one of the preceding claims comprising - rubber (A), 0.1 to 20 phr of the crosslinker (B), in the Case of crosslinking via hydrosilylation the ratio the SiH groups to the crosslinkable by these functional groups is from 0.2 to 20, preferably from 0.5 to 5, particularly preferably at 0.8 to 1.2, 0 to 100,000 ppm, preferably 0.1 to 5000 ppm of the hydrosilylation catalyst system (C) and - 5 to 800 phr of the electrically conductive filler (D), preferably 200 to 600 phr, and - 0.1 to 30 phr, preferably 1 to 10 phr, of the coagent (E). Conductive liquid elastomer after one of claims 2 to 5, comprising 0.1 to 20 phr of at least one additive (F). Conductive liquid elastomer after one of the preceding claims, wherein the rubber (A) is selected from the group of ethylene-propylene-diene rubber (EPDM), wherein preferred as a diene norbornene derivative with a Vinyl group, preferably 5-vinyl-2-norbornene, isobutylene-isoprene-divinylbenzene rubber (IIR terpolymer), polyisobutylene rubber (PIB), isobutylene-isoprene rubber (IIR), butadiene rubber (BR), styrene-butadiene rubber (SBR), Styrene-isoprene rubber (SIR), isoprene-butadiene rubber (IBR), Isoprene rubber (IR), acrylonitrile-butadiene rubber (NBR), chloroprene rubber (CR), Acrylate rubber (ACM), partially hydrogenated butadiene rubber (BR), Styrene-butadiene rubber (SBR), vinyl group-functionalized Perfluoropolyether rubber and functionalized rubber of aforementioned groups, wherein the functionalization in particular made with maleic anhydride or derivatives thereof has been. Conductive liquid elastomer after one of the preceding claims, wherein the rubber (A) contains at least two different rubbers. Conductive liquid elastomer after one of the preceding claims, wherein the middle Molecular weight of the rubber (A) between 5000 and 100000 g / mol, preferably between 5000 and 60000 g / mol. A conductive liquid elastomer according to any one of the preceding claims, wherein the crosslinker (B) is selected from - an SiH-containing compound of the formula (I):

wherein R ^{1 represents} a saturated hydrocarbon group or an aromatic hydrocarbon group which is monovalent, has 1 to 10 carbon atoms and is substituted or unsubstituted, where a is integer values of 0 to 20 and b is integer values of 0 to 20, and R ^{2 is} a divalent organic group having 1 to 30 carbon atoms or oxygen atoms, an SiH-containing compound of the formula (II):

and / or an SiH-containing compound of the formula (III):

Conductive liquid elastomer after one of the preceding claims, wherein the crosslinker (B) from the compounds poly (dimethylsiloxane-co-methylhydro-siloxane), Tris (dimethylsilyloxy) phenylsilane, bis (dimethylsilyloxy) diphenylsilane, Polyphenyl (dimethylhydrosiloxy) siloxane, methylhydrosiloxane-phenylmethylsiloxane copolymer, Methylhydrosiloxane-alkylmethylsiloxane copolymer, polyalkylhydrosiloxane, Methylhydrosiloxane-diphenylsiloxane-alkylmethylsiloxane copolymer and polyphenylmethylsiloxane-methylhydrosiloxane or the peroxides 2,5-dimethyl-2,5-di [tert-butylperoxy] hex-3-yne, di-tert-butyl peroxide, 2,5-dimethyl-2,5-di [tert-butylperoxy] hexanes, tert-butylcumyl peroxide, Di [tert-butylperoxyisopropyl] benzene, dicumyl peroxide, butyl 4,4-di (tert-butylperoxy) valerate, 1,1-di (tert-butylperoxy) -3,3,5-trimethylcyclohexane, tert-butyl peroxybenzoate, Di (4-methylbenzoyl) peroxide, dibenzoyl peroxide and di (2,4-dichlorobenzoyl) peroxide is selected. Conductive liquid elastomer after one of the preceding claims, wherein the crosslinker (B) contains at least two different crosslinkers. Conductive liquid elastomer after one of the preceding claims, wherein the hydrosilylation catalyst system (C) is selected from hexachloroplatinic acid, Platinum (0) -1,3-divinyl-1,1,3,3-tetramethyldisiloxane complex, dichloro (1,5-cyclooctadiene) platinum (II), Dichloro (dicyclopentadienyl) platinum (II), tetrakis (triphenylphosphine) platinum (0), Chloro (1,5-cyclooctadiene) rhodium (I) dimer, chlorotris (triphenylphosphine) rhodium (I) and / or Dichloro (1,5-cyclooctadiene) palladium (II). Conductive liquid elastomer after Claim 13, wherein the hydrosilylation catalyst system (C) in combination with a kinetics regulator selected from dialkyl maleate, in particular Dimethyl maleate, 1,3,5,7-tetramethyl-1,3,5,7-tetravinylcyclosiloxane, 2-methyl-3-butyn-2-ol and / or 1-ethynylcyclohexanol is used. Conductive liquid elastomer after one of the preceding claims, wherein the hydrosilylation catalyst system (C) at least two different hydrosilylation catalysts contains. Conductive liquid elastomer after one of the preceding claims, wherein the at least contains a filler (D) metallic substances, in particular silver-coated copper flakes, glass fibers, glass balls, metallic short fibers and conductive soot, but also pure metals, metallic alloys or metals coated Substrates. Conductive liquid elastomer according to one of the preceding claims, wherein as filler (D) Kom combinations of metallic materials, in particular silver-coated copper flakes and conductive carbon black. Conductive liquid elastomer after Claim 17 wherein furnace, flame and / or channel carbon black is used become. Conductive liquid elastomer after one of the preceding claims, wherein the filler (D) as further fillers silicic acid, general Metal oxides, metal hydroxides, carbonates, silicates, surface-modified or hydrophobicized, precipitated and / or pyrogenic silicic acids, surface-modified metal oxides, surface-modified Metal hydroxides, surface modified carbonates, such as Chalk or dolomite, surface-modified silicates, such as kaolin, calcined kaolin, talc, quartz powder, silica, Phyllosilicates, glass beads, fibers and / or organic fillers, such as wood flour and / or cellulose. Conductive liquid elastomer after one of the preceding claims, wherein the filler (D) contains silver-coated glass fibers. Conductive liquid elastomer after one of the preceding claims, wherein the coagent (E) is 2,4,6-tris (allyloxy) -1,3,5-triazine (TAC), triallyl isocyanurate (TAIC), 1,2-polybutadiene, 1,2-polybutadiene derivatives, allyl ethers, Allyl esters, diacrylates, triacrylates, dimethacrylates and / or trimethacrylates, Triallylphosphonsäureester and / or butadiene-styrene copolymers with at least two hydrosilylation of the rubber (A) contains binding functional groups. Conductive liquid elastomer after one of the preceding claims, wherein this at least one Additive (F) from the groups of anti-aging agents, antioxidants, Antiozonants, flame retardants, hydrolysis protectants, adhesion promoters, Mold release agents, dyes, pigments, plasticizers and processing aids contains. Process for making a conductive Liquid elastomers according to one of the preceding claims, wherein first rubber (A), the filler (D), the coagent (E) and optionally the at least one additive (F) mixed and then the crosslinker (B) and the hydrosilylation catalyst system (C) are added and the mixture is homogenized (one-component system). The method of claim 23, wherein the crosslinker (B) and the hydrosilylation catalyst system (C) separated from each other with a part of the mixture of the other components be mixed until homogeneous distribution before these both Systems are brought together and homogenized (two-component system). Use of a conductive liquid elastomer according to one of the preceding claims by an injection molding or a (liquid) injection-molding process ((L) IM), by pressing or a compression molding (CM) process, by a transfer molding process (TM), by a printing process, by caterpillar application, by dipping or by spraying. Use of a conductive liquid elastomer according to one of the preceding claims for printing on Nonwovens, foams and other stretchable substrates.