Cord having an improved adhesion promoting coating

A composite material comprising a cord embedded in a polymer material, said cord comprising a number of filaments twisted together, said cord being partially coated with an adhesion promoting coating configured to provide adhesion between said cord and said polymer material,

• said cord comprising:
• a core strand comprised of a plurality of core strand filaments, said core strand filaments being substantially free of said adhesion promoting coating;
• and
• a plurality of peripheral strands arranged around said core strand, each of said peripheral strands being comprised of peripheral filaments and non-peripheral filaments, said peripheral filaments being coated with said adhesion promoting coating and said non-peripheral filaments being substantially free of said adhesion promoting coating,
• said cord showing cross-sections in a plane perpendicular to an axis of said cord wherein two adjacent filaments define an interface zone, said interface zone being defined as a zone between adjacent filaments where a distance between said adjacent filaments is smallest,
• said peripheral filaments having peripheral edges and non-peripheral edges, said peripheral edges of said peripheral filaments being defined as edges being part of an exterior surface of a peripheral strand and said non-peripheral edges of said peripheral filaments being defined as edges not being part of said exterior surface of said peripheral strand,
• said peripheral edges of said peripheral filaments being coated with said adhesion promoting coating and said non-peripheral edges of said peripheral filaments being substantially free of said adhesion promoting coating,
• said adhesion promoting coating having a thickness Tx at location x, the thickness Tx of said adhesion promoting coating in said interface zone of adjacent filaments is not higher than the thickness Tx of said adhesion promoting coating at a location of said exterior surface which is not in one of said interface zones of adjacent filaments,
• said adhesion promoting coating comprising at least a first layer, said first layer comprising a silicon based coating, a titanium based coating, a zirconium based coating or a combination thereof, and
• said first layer is an electrostatically-assisted-spray coating applied by electrostatically assisted spraying.