| abstract |
Process for the preparation of reinforced vulcanizates by vulcanization of natural or synthetic rubber mixtures with novolak resins in the presence of an amine compound as hardener, characterized in that the vulcanization in the presence of reactive melamine resins, as obtained by reacting melamine with 0.5 to 6 mol of aldehyde are carried out as hardeners in a proportion of 0.5 to 120% by weight, based on novolak resin, and in that the phenolic component of the novolak resin is selected from the group phenol, polyvalent multinuclear phenols, alkylphenols, mixtures of alkylphenols with phenoi, it may also contain additives of resorcinol, phenylphenol or polyalkylphenols, and rubber articles and automobile tires made from these products. |