| 摘要 |
The present invention provides a polymer sheet for an inner liner and a method for producing a pneumatic tire, which do not cause an air-in phenomenon between an inner liner and an insulation rubber or a carcass rubber in the vulcanization step, and also can prevent adhesion between the inner liner and a bladder. The method for producing a polymer sheet for an inner liner includes the steps of preparing an unvulcanized polymer sheet made of a polymer mixture containing 99 to 60% by mass of a styrene-isobutylene-styrene triblock copolymer, and 1 to 40% by mass of a polyamide-based polymer containing polyamide in the molecular chain and having a Shore D hardness of 70 or less, and at least one of the steps of coating one surface of the unvulcanized polymer sheet with a water-soluble paint 2 to 5 times, and coating with a mold-releasing rubber in a thickness of 0.001 mm to 0.1 mm.f.
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