Hydrocarbyl carbamidopropanamide, its method of preparation and lubricating oil composition containing same
AssigneeTexaco Inc.
InventorKechia J. Chou
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Abstract
A hydrocarbyl-substituted carbamidopropanamide represented by the formula: ##STR1## in which R is a hydrocarbyl radical having an average molecular weight ranging from about 150 to 2000 and R' is hydrogen, a hydrocarbyl radical having from 1 to 20 carbon atoms or an R"(X-R'").sub.y -- radical in which R" is an alkyl radical having from 1 to 12 carbon atoms, X is oxygen or an --NH-- radical having from 1 to 3 carbon atoms and y is an integer from 1 to 3, a method for preparing said hydro-carbyl-substituted carbamidopropanamide, and a lubricating oil containing same is provided.
Claims19
A hydrocarbyl-substituted carbamidopropanamide represented by the formula:
- ##STR6## in which R is a hydrocarbyl radical having an average molecular weight ranging from about 150 to 2000, R' is hydrogen, a hydrocarbyl radical having from 1 to 20 carbon atoms or an R"--(X--R'").sub.y -- radical in which R" is an alkyl radical having from 1 to 12 carbon atoms, X is oxygen or an NH radical, R'" is a divalent hydrocarbyl radical having from 1 to 3 carbon atoms and y is an integer from 1 to 3.
A hydrocarbyl-substituted carbamidopropanamide represented by the formula:
- ##STR7## in which R is a polyalkenyl radical having an average molecular weight ranging from about 150 to 2000 and R' is hydrogen in one occurrence and an aryl or an alkaryl radical having from 6 to 10 carbon atoms in the second occurrence.
The compound N-phenyl-beta-polyisobutenyl (1290 MW)-beta-(N,N'-phenyl) carbamidopropanamide.
The compound N-decyloxypropylaminopropyl-beta-polyisobutenyl (1290 MW)-beta-(N,N'-decyloxypropylaminopropyl) carbamidopropanamide.
The compound beta-phenyl-beta-tetrapropenyl-beta-(N,N'-phenyl) carbamidopropanamide.
A method for preparing a hyrocarbyl-substituted carbamidopropanamide which comprises reacting an N-hydroxy hydrocarbyl-substituted succinimide represented by the formula:
- ##STR8## in which R is a hydrocarbyl radical having an average molecular weight ranging from about 150 to 2000, with p-toluene-sulfonyl chloride in the presence of an acid acceptor to produce an intermediate addition reaction product, and reacting said intermediate reaction product with a primary or a secondary amine employing from 2 to 4 moles of said amine per mole of said intermediate reaction product, said amine being represented by the formula:
- R'R'NH
- in which R' is hydrogen, a hydrocarbyl radical having from about 1 to 20 carbon atoms or an R"(X--R'").sub.y radical in which R" is an alkyl radical having from 1 to 12 carbon atoms, X is oxygen or an NH radical, R'" is divalent hydrocarbyl radical having from 1 to 3 carbon atoms and y is an integer from 1 to 3 to produce said hydrocarbyl-substituted carbamidopropanamide.
A lubricating oil composition comprising a major proportion of a base oil of lubricating viscosity and from 0.1 to about 5 percent by weight of a hydrocarbyl-substituted carbamidopropanamide compound represented by the formula:
- ##STR9## in which R is a hydrocarbyl radical having an average molecular weight ranging from about 150 to 2000, R' is hydrogen, a hydrocarbyl radical having from 1 to 20 carbon atoms or an R"--(X--R'").sub.y -- radical in which R" is an alkyl radical having from 1 to 12 carbon atoms, X is oxygen or an NH radical, R'" is a divalent hydrocarbyl radical having from 1 to 3 carbon atoms and y is an integer from 1 to 3.
Dependencies are inferred from the claim text.