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  • US 3,302,071 A
  • Filed:
  • Issued:
  • Status: Expired due to Term
First Claim
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1. AN ELECTROLYTIC CAPACITOR COMPRISING A PAIR OF ELECTRODES AT LEAST ONE OF WHICH IS COMPOSED OF A FILM-FORMING METAL HAVING A DIELECTRIC FILM THEREON AND AN ELECTROLYTE COMPRISING A MIXTURE IN PERCENT BY WEIGHT OF 8525% BUTROLACTONE AND 15-75% N-METHYLPYRROLIDONE AND HAVING A BOILING POINT OF ABOUT 2200%C. AND AN APPARENT FREEZING POINT BELOW -55%C., AND AN IONOGEN DISSOLVED THEREIN IN AN AMOUNT TO PROVIDE A RESISTIVITY FOR THE ELECTROLYTE OF AT LEAST ABOUT 10 OHM-CENTIMETERS AT ROOM TEMPERATURE.

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