Compositions of matter having two ring nuclei composed of 6 carbon atoms essentially superimposed in fixed parallel planes with respect to each other and process of preparing the same. The compositions may be advantageously employed in lubricating grease.
This is a division of application Ser. No. 521,256 filed Nov. 6, 1974, now U.S. Pat. No. 3,953,426 said application Ser. No. 521,256 being a divisional application of Ser. No. 359,126 filed May 10, 1973, now U.S. Pat. No. 3,860,610, said latter application being a continuation of application Ser. No. 68,047 filed Aug. 28, 1970, now abandoned, which latter application is a division of application Ser. No. 706,663 filed Feb. 19, 1968, now U.S. Pat. No. 3,597,431 which latter application is in turn a continuation-in-part of application Ser. No. 554,651 filed June 2, 1966, now abandoned.
