摘要：

PURPOSE:To prevent refrigerant pollution by using a specific poly-1,4- cyclohexane dimethylene telephtalate (PCT) film. CONSTITUTION:A biaxial oriented PCT film concurrently satisfying equations I-IV is used for a motor insulating material of an air conditioner or a refrigerator. It is excellent in solvent resistance, it has little low-molecular weight material due to heat deterioration and oxidation deterioration, and the low-molecular weight material is prevented from being eluted to pollute a refrigerant. In the equations I-IV, MP is the crystal melting point deg.C of the film, rho is the film density (g/cm<3>), P is the degree of orientation on the film face, and W is the extraction quantity weight % in 24hr from the film by chloroform.

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