Abstract:
Motor fuel composition comprising a mixture of hydrocarbons in the gasoline boiling range containing 0.03 to 1.0 volume percent of a paraffinic oil fraction consisting of at least 55 percent of paraffinic hydrocarbons and less than 16 percent of aromatic hydrocarbons and having an average molecular weight in the range from 540 to 850, and method of preventing a deposits build-up in a gasoline engine.
Abstract:
MOTOR FUEL COMPOSITION COMPRISING A MIXTURE OF HYDROCARBONS IN THE GASOLINE BOILING IN THE GASOLINE BOILING RANGE CONTAINING (1) THE SALT REACTION PRODUCT OF (A) A PARAFFINIC OIL OXIDATE HAVING A NEUTRALIZATION NUMBER BETWEEN 55 AND 80 AND A SAPONIFICATION NUMBER BETWEEN 100 AND 200, AND (B) AN AMIDE HAVING THE FORMULA
R"-NH-CH2-CH2-CH2-N(-R'')-CO-R
IN WHICH R IS A MONOUNSATURATED HYDROCARBYL RADICAL HAVING FROM 16 TO 18 CARBON ATOMS AND R'' AND R" ALTERNATELY REPRESENT HYDROGEN AND A HYDROCARBYL RADICAL HAVING 14 TO 18 CARBON ATOMS, AND (2) A NORMALLY LIQUID AMINE SALT OF BRANCHED CHAIN PRIMARY ALKYL ACID ESTERS OF ORTHOPHOSPHORIC ACID IN WHICH EACH ESTERIFYING GROUP CONTAINS 13 TO 16 CARBON ATOMS AND THE AMINE IS AN ALIPHATIC HYDROCARBON MONOAMINE OF 6 TO 24 CARBON ATOMS IN WHICH EACH ALIPHATIC HYDROCARBON RADICAL IS ATTACHED TO THE NITROGEN THROUGH A SATURATED CARBON ATOM.
Abstract:
MOTOR FUEL COMPOSITION COMPRISING A LIQUEFIED PETROLEUM GAS CONTAINING FROM ABOUT 0.0001 TO 0.1 VOLUME PERCENT OF (1) A POLYMER OF A C2 TO C6 UNSATURATED HYDROCARBON, (2) A COPOLYMER OF A C2 TO C6 UNSATURATED HYDROCARBONN, OR (3) THE CORRESPONDING HYDROGENATED POLYMER OR COPOLYMER, SAID POLYMER OR COPOLYMER HAVING A MOLECULAR WEIGHT IN THE RANGE FROM ABOUT 500 TO 3500 AND A METHOD FOR OPERATING AN INTERNAL COMBUSTION GASOLINE ENGINE.
Abstract:
A MOTOR FUEL COMPOSITION WHICH PROMOTES REDUCED INTAKE VALVE AND PORT DEPOSITS CONTAINING FROM 0.005 TO 0.1 VOLUME PERCENT OF A POLYESTER OF A POLYMERIZED CARBOXYLIC ACID.