Abstract: Formulations of additives for engine fuels comprising at least one constituent (A) and one constituent (B) resulting from the reaction of at least one alkenyl or polyalkenyl-succinic derivative with at least one polyamine to form constituent (A) and with at least one 1-(2-hydroethyl) imidazoline substituted in the 2-position by a linear or branched alkyl or alkenyl radical with 1 to 25 atoms of carbon to form constituent (B). The preferred formulations also contain a constituent (C) consisting of at least one polyglycol soluble in said fuel, with an average molecular mass ranging from 480 to 2,100. The (A)/(B) and (A)+(B)/(C) molar ratios preferably are respectively 0.2/1 to 5/1 and 0.05/1 and 20/1.
Type:
Grant
Filed:
June 28, 1989
Date of Patent:
December 11, 1990
Assignee:
Institut Francais du Petrole
Inventors:
Jacques Denis, Xavier Montagne, Philippe Mulard, Daniele Eber
Abstract: A lubricating oil composition for chains which comprises(A) as the base oil, a polyol ester represented by the general formula ##STR1## wherein R.sub.1 is an alkyl group having 1 to 4 carbon atoms, R.sub.2 to R.sub.4 are each an alkyl group having 2 to 17 carbon atoms, a and b are each an integer of 0 to 2 with the proviso that the total of a and b is 2, and n is an integer of 1 to 4, and(B) as an additive, a graphite fluoride represented by the experimental formulaCF.sub.xwherein x is a number of 0.5 to 1.2, in a specified amount of 0.5 to 30% by weight of the composition.
Abstract: Castor oil extended by addition of an alcohol and water, the mixture then being essentially immune to phase separation or haziness or inadvertent addition of extra water contamination, of a pH range of about 4-121/2 and having a flash point above the United States government regulation permitting the fuel to be shipped interstate as an oil rather than as a volatile solvent or fuel.
Abstract: A stable middle distillate fuel-oil composition which comprises(a) a major portion of a middle distillate fuel-oil; and(b) a minor amount, as a storage stabilizing additive, of N-3-(3,5-di-t-butyl-5-hydroxybenzene)propyl succinimide of a copolymer and maleic anhydride graft.
Type:
Grant
Filed:
December 22, 1988
Date of Patent:
April 24, 1990
Assignee:
Texaco Inc.
Inventors:
Theodore E. Nalesnik, Sheldon Herbstman
Abstract: A stable middle distillate fuel-oil composition which comprises(a) a major portion of a middle distillate fuel-oil; and(b) a minor amount, as a storage stabilizing additive, of an aliphatic N(N',N'-dimethyl aminopropyl) succinimide of a copolymer and maleic anhydride graft.
Type:
Grant
Filed:
December 22, 1988
Date of Patent:
April 24, 1990
Assignee:
Texaco Inc.
Inventors:
Sheldon Herbstman, Theodore E. Nalesnik
Abstract: Dihydrocarbyl dithiocarbamate-derived organic phosphates have been found to be effective antioxidant/antiwear multifunctional additives for various lubricant media.
Abstract: A stable middle distillate fuel-oil composition which comprises(a) a major portion of a middle distillate fuel-oil; and(b) a minor amount, as a storage stabilizing additive, of N(4-anilinophenyl)succinimide of a copolymer and maleic anhydride graft.
Type:
Grant
Filed:
December 22, 1988
Date of Patent:
April 24, 1990
Assignee:
Texaco Inc.
Inventors:
Theodore E. Nalesnik, Sheldon Herbstman
Abstract: Novel lubricant mixtures are disclosed having unexpectedly high viscosity indices. The mixtures are blends of high viscosity index polyalphaolefins prepared with activated chromium on silica catalyst and polyalphaolefins prepared with BF3, aluminum chloride, or Ziegler-type catayst. Superior blends are also prepared from HVIXPAO with mineral oil and/or other synthetic liquid lubricants.