PURPOSE: A fluidity improver for hydrocarbon type fuel oils, consisting of an ester of a hydroxyl group-containing nitrogen compound with a straight chain saturated fatty acid, a polymer of a monomer, e.g. an olefin, and capable of reducing the cold filter blocking point and pour point.
CONSTITUTION: A fluidity improver consisting of (A) an ester of a nitrogen- containing compound having preferably 2W10 hydroxyl groups with a 12W30C straight chain saturated fatty acid and (B) a polymer (preferably 500W50,000 number-average molecular weight) of one or more monomers selected from olefins, alkyl ethylenically unsaturated carboxylates and vinyl esters of saturated fatty acids. Preferably, the fluidity improver is added to a fuel oil in an amount of 50W1,000ppm based on the fuel oil.
EFFECT: The addition of the fluidity improver eliminates various problems related to the low-temperature fluidity in the storage or transportation of distillate fuel oils, containing paraffins, and having a high boiling point.
NAGAI TAKESHI
YAMAZAKI SHINGO
| JPS5036246A | 1975-04-05 |
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