| 摘要 |
PROBLEM TO BE SOLVED: To easily obtain, by extrusion molding, a norbornene-based resin film slight in malappearance due to specks or resin dregs and also slight in mechanical strength drop due to resin decomposition and/or low-molecular weight fraction. SOLUTION: This film is obtained by extrusion molding of a norbornene- based resin 80,000-150,000 in weight-average molecular weight determined by high-performance liquid chromatography and 30,000-50,000 in number-average molecular weight. |
