Patent ID: 9012706
Filing Date: 2015-04-21
Classification: C07C,C10L,C10M,C10N

Abstract:
1. A method for marking a petroleum hydrocarbon or a liquid biologically derived fuel; said method comprising adding to said petroleum hydrocarbon or liquid biologically derived fuel at least one compound having formula (Ph 3 C) m Ar(OR) n , wherein Ph represents a phenyl group, Ar is an aromatic ring system having from six to twenty carbon atoms, R is C 1 -C 18 alkyl or C 7 -C 10 aralkyl, m is one or two, and n is an integer from one to four, wherein each compound having formula (Ph 3 C) m Ar(OR) n is present at a level from 0.01 ppm to 20 ppm.