| 摘要 |
<p>PURPOSE:To prevent the thermal deterioration of a gas shield film by arranging the gas shield film to the lower or upper elastic layer preliminarily coated with a room temp. curable adhesive prior to vacuum molding and vulcanized and molded in a state mounted to a vacuum mold after vacuum molding. CONSTITUTION:A gas shield film 51 formed in a gas shield film forming process is pressed and closely adhered to the upper surface of the unvulcanized lower elastic layer 52 preliminarily molded in a lower elastic layer molding process in a state mounted to a vacuum mold 11. Since the lower elastic layer 52 is in an unvulcanized state and has sufficient stickiness, the gas shield film 51 can be caught by said elastic layer 52 and easily detached from the vacuum mold 11. The upper elastic layer 53 preliminarily molded in an upper elastic layer molding process and received in an upper mold 32 in an unvulcanized state and having sufficient stickiness is allowed to approach the lower elastic layer 52 provided with the gas shield film 51 in a state received in a lower mold 21 to be brought into contact therewith and the lower and upper elastic layers 52, 53 are together vulcanized and molded under heating. The gas shield film 51, the lower elastic layer 52 and an upper elastic layer 53 are mutually integrated and a bladder 50 for an accumulator having the gas shield film 51 is prepared.</p> |
