Sealing gels, process for production thereof and use thereof in sealing compounds for self-sealing tyres

A sealing gel having a Mooney viscosity ML1+4 at 100° C. of 100 MU to 170 MU as determined by ASTM D1646 published in 1999, wherein the gel comprises a mixture comprising:

• a first diene rubber gel (A) having a Mooney viscosity ML1+4 at 100° C. of 170 MU to 195 MU as determined by ASTM D1646 published in 1999 obtained by emulsion polymerization of at least one conjugated diene in the presence of at least one first crosslinker (I);
• and
• a) a second diene rubber gel (B) having a Mooney viscosity ML1+4 at 100° C. of 75 MU to 110 MU as determined by ASTM D1646 published in 1999 obtained by emulsion polymerization of at least one conjugated diene in the presence of at least one second crosslinker (II);
• or
• b) a third diene rubber gel (H) obtained by emulsion polymerization of at least one conjugated diene in the presence of at least one second crosslinker (I) and in the presence of at least one second crosslinker (II),
• where:
• the at least one first crosslinker (I) comprises an acrylate of a polyhydric C2-C20 alcohol, a methacrylate of a polyhydric C2-C20 alcohol, or a mixture thereof;
• and
• the at least one second crosslinker (II) comprises a compounds having two or more vinyl groups, two or more allyl groups, two or more isopropenyl groups, one maleimide unit, or a mixtures thereof;
• and
• the at least one conjugated diene is at least one of 1,3-butadiene, 2,3-dimethyl-1,3-butadiene, isoprene, or chloroprene.