Abstract: This invention is directed to a plasma cord coating device comprising a pair of opposite and parallel plate electrodes having a first electrode and a second electrode, a pair of planar and parallel dielectric barriers including a first dielectric barrier, and a second dielectric barrier, wherein the first electrode is covered by the first dielectric barrier on a side facing the second electrode and the second electrode is covered by the second dielectric barrier on a side facing the first electrode to form a gap between the first and the second dielectric barriers. This device includes a first foil which extends through the gap and covers the first dielectric barrier and a second foil which extends through the gap and covers the second dielectric barrier to form a plasma treatment zone between the first foil and the second foil.

Abstract: The present invention is directed to a method of making a cord-reinforced rubber article, comprising the steps of A) mixing a carrier gas, a sulfur-containing compound and an alkyne, to form a gas mixture; B) generating an atmospheric pressure plasma from the gas mixture; C) exposing a reinforcement cord to the atmospheric pressure plasma to produce a coated reinforcement cord; and D) contacting the coated reinforcement cord with a rubber composition comprising a diene based elastomer.