A cable comprising at least one conductor and at least one coating layer
based on a composite material comprising:
at least one polymer containing a predetermined quantity of polar groups;
and
at least one inorganic material with lamellar structure surface-treated
with a predetermined quantity of a compatibilizer;
in which said predetermined quantity of polar groups and said predetermined
quantity of compatibilizer are selected in such a way that said inorganic
material exhibits, in the composite material, a d-spacing value in X-ray
diffraction analysis at least 20% higher with respect to the d-spacing
value of the inorganic material as such.
