FIELD: chemistry.
SUBSTANCE: invention relates to an adhesive composition for a pneumatic tyre, which can improve both adhesiveness to a film layer and adhesiveness to a rubber layer, as well as to a method of gluing with its application, a layered material, formed by the claimed method and the pneumatic tyre. The composition includes a cauotchouc component, at least, 80 wt % of which is epoxidised natural cauotchouc, which includes at least epoxidised natural cauotchouc A and epoxidised natural cauotchouc B. The cauotchouc A has the higher degree of epoxidation than the cauotchouc B. The content of the cauotchouc A in an epoxidised natural cauotchouc constitutes 10-40 wt %. The method of gluing the film layer to a layer of non-vulcanised rubber includes the placement of the adhesive composition, preliminarily dissolved in a suitable solvent, between layers and vulcanisation of the layers.
EFFECT: composition provides an improved adhesion to the film layer and to the rubber layer, and improves air holding (reduction of air-permeability).
17 cl, 2 dwg, 3 tbl, 10 ex
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