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Abstract

Method for producing a crosslinkable elastomeric composition including: (a) at least one first elastomeric polymer; (b) at least one layered material having an individual layer thickness of 0.01 nm to 30 nm, preferably of 0.05 nm to 15 nm; and (c) at least one vulcanizing agent; includes the following steps: (i) feeding the at least one layered material (b) and at least one second elastomeric polymer (d), into at least one extruder including a housing, at least one screw rotatably mounted in the housing including at least one feed opening and a discharge opening, the at least one layered material being fed into the at least one extruder in an amount higher than or equal to 70 phr; (ii) mixing and softening the mixture so as to obtain a masterbatch; (iii) discharging the obtained masterbatch through a discharge opening; and (iv) mixing the obtained masterbatch with the at least one first elastomeric polymer (a) and the at least one vulcanizing agent (c), to obtain the crosslinkable elastomeric composition, the mixing being carried out in a batchwise manner.

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First Claim