Patent ID: 7905978

Claim:
A method for producing a low permeable rubber laminate comprised of a thin film layer of a low permeable resin (B) laminated on a layer of a rubber composition (C) comprising: (i) preparing a low permeable multilayer film of (A) a layer of a polyolefin-based resin and (B) a thin film layer of a low permeable resin having an air permeability coefficient, determined based on JIS K7126 at 30° C., of 0.5×10 −12 cc·cm/cm 2 ·sec·cmHg or less and an average thickness ε of 0.05<ε<20 μm, wherein the layer (A)/layer (B) are in a pseudo-adhesive state and the layer (A)/layer (B) have a peeling strength, determined based on JIS K6256 at 30° C., of less than 0.05N/mm, (ii) laminating, on said low permeable multilayer film, a layer of an unvulcanized rubber composition (C) in an order of layer (A)/layer (B)/layer (C) to bond the layer (B)/layer (C) so that the peeling strength, determined based on JIS K6256 at 30° C., of the layer (C) and layer (B) becomes 0.05N/mm or more, and (iii) peeling off the layer (A) of the pseudo-adhesive state of the resultant laminate from the layer (B).