| abstract |
Compounds suitable for being used as lubricants, having general formula: n (I) RO--(C 3 F 6 O) m --(CFXO) n --CFX--L, or n (II) R"CFXO--(C 3 F 6 O) x (CFXO) y --(C 2 F 4 O) z --(CFX--L, where n R=--CF 3 , --C 2 F 5 , --C 3 F 7 n X=F, --CF 3 n R"=F, --CF 3 , --C 2 F 5 n m=an integer from 3 to 100 n n=a finite integer, or=zero, wherefore m+n ranges from 3 to 100, provided that, if n is finite, m/n ranges from 5 ro 20 and R is preferably=CF 3 , if n=zero, R is preferably --C 2 F 5 or --C 3 F 7 n x=a finite integer, or=zero n y, z=finite integers, such that x+y+z ranges from 5 to 200, while x+z/y ranges from 5 to 0.5, provided that when x=zero, z/y ranges from 1 to 0.5 and y+z ranges from 5 to 200 n while X is preferably F, and R"=L n L=group A--Y, where n A=--CH 2 O--, --CH 2 --O--CH 2 , --CF 2 , CF 2 O--, n Y=an organic radical covered by one of the following formulas: ##STR1## where R 1 , R 2 =alkyls C 1 -C 3 , n E=CHR 3 or --CH 2 --CHR 3 n B=H or a radical OR 3 -- n R 3 =H or an alkyl C 1 -C 3 . |