Abstract:
The vulcanized aged adhesion of rubber to clean brass coated steel cord is improved by the use of benzotriazole (BTA) and/or a precipitation compound such as cyclohexylamine borate and/or an oxidation compound such as zinc chromate. These agents are added directly to the surface of the cord or to the rubber immediately adjacent to the cord. BTA treatment reduces surface degradation of the cord and the precipitation compound and oxidation compound aid in improving aged adhesion. Preferably the cord is cleaned in an acid dip, which can be used to deposit desired anions on the cord surface, prior to treatment.
Abstract:
The vulcanized, aged, adhesion of rubber to brass-coated steel cord is improved by the use of benzotriazole (BTA) and cyclohexylamineborate (CHAB). The BTA and CHAB are used alone or in combination. They are added directly to the surface of the cord or to the rubber immediately adjacent to the cord. BTA treatment will reduce surface contamination of the cord. CHAB will aid in improving aged adhesion.
Abstract:
Brass coated steel tire cord is treated with vaporized benzotriazole and/or other treatment agents to promote corrosion resistance and cord to rubber adhesion retention.
Abstract:
A composite of a metallic material and vulcanized rubber is produced by contacting an unvulcanized rubber with a metallic material plated with a metal selected from the metals of Group IV of the Periodic Table.