Abstract:
A synergistic mixture comprising from 1 to 99.9% by weight of compounds having structural elements (I) in which the free valencies on the oxygen atom and on the nitrogen atom may be combined to form a five-, six- or seven-membered ring and the benzene ring may also bear substituents at one or more of the free positions, and from 0.1 to 99% by weight of sulfur-containing organic compounds with antioxidant action. This synergistic mixture is suitable as a stabilizer for stabilizing inanimate organic material, especially mineral oil products and fuels, against the action of light, oxygen and heat.
Abstract:
Provided are additives of formula I for use in hydrocarbonaceous compositions, such as petroleum or liquid fuels: (I) wherein R1, R2, R3, R4, and R5 are as defined herein. The additives improve the corrosion resistance of the compositions. The additives also enhance the antimicrobial efficacy of any added biocides contained in such compositions.
Abstract:
Thio-bis-(hydrocarbyl substituted diacid materials), such as thio-bis-(polyalkyl lactone acid) and/or their precursors, the adducts of sulfur chloride and unsaturated diacid materials, e.g., 4,8-bis-polyalkyl-4,8-dichloro-6-thiaundecane-1,2,10,11-tetracarboxylic acid bis-anhydride and their dehydrochlorinated analogs, when esterified with an alcohol, preferably a polyol, such as pentaerythritol, polypentaerythritol or a polyalkylene glycol with or without acid catalysts and/or metal template reagents yield thio-bis-(alkyl lactone acid esters) and thio-bis-(hydrocarbyl diacid esters) which can be characterized in part, as macrocyclic and/or macrocyclic-like structures, are useful as stable additives in lubricating compositions, e.g. as varnish inhibiting dispersants for lubricating oils and fuels.
Abstract:
There are disclosed macrocyclic and polycyclic polyamine lubricating oil additives formed by cyclodehydration of reaction products of hydrocarbon substituted succinic anhydrides or carboxylic acids with poly 3-amino propyl compounds or by acylation of macrocyclic polyamines and polycyclic polyamines with hydrocarbon substituted succinic anhydride or carboxylic acids. These compounds are useful as dispersants and dispersants-V.I. improvers in both gasoline and diesel engine lubricating oil compositions and are also useful fuel additives.
Abstract:
Thio-bis-(hydrocarbyl substituted diacid materials), such as thio-bis-(polyalkyl lactone acid) and/or their precursors, the adducts of sulfur chloride and unsaturated diacid materials, e.g., 4,8-bis-polyalkyl-4, 8-dichloro-6-thiaundecane-1,2,10,11-tetracarboxylic acid bis-anhydride and especially their dehydrochlorinated analogs, when treated with an amine preferably polyalkylene polyamines such as tetraethylene pentamine, directly or in the presence of a metal template reagent, yield aminated thio-bis-(alkyl lactone acid) and thio-bis-(hydrocarbyl diacid) materials or their metal complexes which can be characterized in part, as macrocyclic and/or macrocyclic-like amide and/or imide structures, are useful as stable additives in lubricating compositions, e.g., as varnish inhibiting dispersants and/or inhibitors for lubricating oils and fuels.
Abstract:
Disclosed are fuel compositions including alcohol-extended fuels containing friction-reducing, anti-corrosion and detergent amounts of at least one fuel soluble glycine derivative of the formula:RNHCH.sub.2 Xwherein R is a hydrocarbyl group having 6 to 18 carbons and X is ##STR1## wherein R.sub.1 is lower alkyl having 1 to 5 carbon atoms; R.sub.2 is alkylene having 1 to 5 carbon atoms; R.sub.3 is an alkylamino or alkylpolyamino group having 1 to 5 carbon atoms.
Abstract:
The cetane number of diesel fuel is increased by the addition of an aliphatic hydrocarbyl nitro nitrate additive such as 2-methyl-2-nitro-1-propanol nitrate (ester).