| http://www.w3.org/ns/prov#value | - Another suitable class of additives is that of bisquaternary salts of the general formula wherein R1, R2, R3, and R4 each, independently of the others, are alkyl groups, including saturated, unsaturated, and substituted alkyl groups, preferably linear, although some branching is acceptable, and preferably with from about 12 to about 24 carbon atoms, more preferably with from about 14 to about 20 c
|
