Pour point depressants and their use

Details Pour point depressants and their use Pour point depressants and their use

1996-04-08

1998-01-13

Howard, Jacqueline V.

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic oxygen compound

C10M12910

Patent

active

057079463

ABSTRACT:
The pour point of paraffin-containing liquids is reduced by adding to the liquid an effective amount of a pour point depressant which is the reaction product of a hydrocarbyl-substituted phenol having a number average of greater than 30 carbon atoms in the hydrocarbyl-substituent, and an aldehyde of 1 to about 12 carbon atoms, or a source therefor. The pour point depressant is particularly useful for treating crude oils which have an initial pour point of 4.degree. C. or higher.

REFERENCES:
patent: 2412589 (1946-12-01), Lieber
patent: 3962124 (1976-06-01), Motz et al.
patent: 4273891 (1981-06-01), Pindar et al.
patent: 5118875 (1992-06-01), Martella et al.
"Polymer additives for engine oils", Chemtech, M.K. Mishra et al, Apr., 1995 p. 40.
"Chemical Structure of Alkyl Phenols and their Effectiveness as Depressants", P.I. sanin et al; Trudy Inst. Fefti, Akad. Nauk S.S.S.R., 8, pp. 180-184, 1956, month unavailable.

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