摘要:
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.
摘要:
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.
摘要:
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.
摘要:
A bis-oxazoline of the formula: ##STR1## wherein R represents an alkyl group of 6 to 50 carbons and X is selected from the group containing of an alkyl or hydroxyalkyl group and at least one of the X substituents being a hydroxy alkyl group of the structure --(CH.sub.2).sub.n OH where n is 1 to 3, which is useful in improving the lubricity of aqueous drilling muds.
摘要:
Thio-bis-(hydrocarbon-bisoxazolines) which are the reaction products of thio-bis-(hydrocarbon substituted dicarboxylic acid material), for example, thio-bis-(polyisobutenyl succinic anhydride), with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl) amino-methane (THAM), and their derivatives are useful additives in oleaginous compositions, such as sludge dispersants for lubricating oil, or anti-corrosion agents for fuels.
摘要:
Lactone oxazoline reaction products of hydrocarbon substituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are useful aditives in oleaginous compositions, such as sludge dispersants for lubricating oil, or anti-rust agents for gasoline.
摘要:
Lactone oxazoline reaction products of hydrocarbon substituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are useful additives in oleaginous compositions, such as sludge dispersants for lubricating oil, or anti-rust agents for gasoline.
摘要:
Aqueous drilling fluids containing a minor amount of an additive composition featuring oxazolines of C.sub.1 -C.sub.30 alkylthioglycolic acid. Such fluids are especially useful where reduced torque drilling fluids are needed. Another embodiment of this invention relates to a method of drilling utilizing the above-described fluids.
摘要:
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-5-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.
摘要:
Azole and azoline disulfides useful as corrosion inhibitors and antiwear agents are prepared by the halogen-induced coupling of a thiol reactant e.g., hydrocarbyl mercaptans, with a metal azole thiolate, e.g. the potassium salt of 3,5-bis-mercapto 1,2,4-thiadiazole or 2,5-bis-mercapto 1,3,4 thiadiazole in a 2-phase reaction medium comprising a mixture of a hydrocarbon and water.