| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a tubular polyimide molding good in shape which reduces the nonuniformity of shrinkage stress and prevents wrinkling. SOLUTION: In the method for producing the tubular polyimide molding, in a process in which the precursor of the polyimide molding, after being externally engaged with or applied on a cylindrical mold, is heated, the cylindrical mold is rotated. Preferably, the cylindrical mold is rotated until the surface temperature of the precursor reaches 200°C. COPYRIGHT: (C)2005,JPO&NCIPI
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