Document 0gpvzVGakLJKaV0xag2rg5a7m

. ; f1- r- i ' e t: L' - / jr-m -\ . DISCLOSURE NO. 3725 CASE NO. INVENTOR(S) : R. H. Munch TITLE: DATE : April 9, 1969 SERIAL NUMBER: FILING DATE: DIVISION: SUBJECT MATTER: This invention relates to the use of tolyl xylyl sulfong as a dielectric fluid for use in polypropylene film capcitors. This compound has a dielectric constant (k, ) of 22 and is preferred for use with polypropylene film1 in order that the following ideal relationship may be approximated. . ks Es = kiEi where k is the dielectric constant and E is the dielectric strength of the solid and liquid materials. It is contemplated that the tolyl xylyl sulfon might be mixed with aroclor type compounds in order to produce a less viscose mixture. w ^ S'^o ,0<7 7/-~ OFFICE ACTIONS RESPONSES DSW 436029 STLCOPCB4089090