POLYESTER FILM FOR CAPACITOR

摘要

PROBLEM TO BE SOLVED: To improve the characteristics of withstand voltage and resistance to moisture and heat and to realize excellent operability at the time of manufacture of a capacitor by improving the adhesion between a base film and an evaporated metal. SOLUTION: This film is obtained by coating at least one surface of a polyester film with a coating solution of which the main coating agent component is water-soluble or water-dispersible resin and which contains an oxazoline ring component of 0.1-5wt.% to the whole solid content therein. It is made to have a coat layer of which the dry thickness is 0.005-0.5μm.