Process for preparing trithianes and phosphorus acid and/or thiophosphorus acid derivatives

Trithiane and phosphorus and/or thiophosphorus acid derivatives are described which are useful as extreme pressure compositions. The process comprises a reaction product obtained by reacting (A) an aldehyde of the structure wherein R is a hydrocarbyl group containing from 1 to about 18 carbon atoms...

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Bibliographic Details
Main Author SOWERBY; ROGER L
Format Patent
LanguageEnglish
Published 20.10.1998
Edition6
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
FUELS
HETEROCYCLIC COMPOUNDS
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS
LUBRICANTS
LUBRICATING COMPOSITIONS
METALLURGY
ORGANIC CHEMISTRY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Summary:Trithiane and phosphorus and/or thiophosphorus acid derivatives are described which are useful as extreme pressure compositions. The process comprises a reaction product obtained by reacting (A) an aldehyde of the structure wherein R is a hydrocarbyl group containing from 1 to about 18 carbon atoms with (B) a phosphorus acid of the structure (I) wherein R2 and R3 are each independently a hydrocarbyl group containing from 1 to about 30 carbon atoms, X1 and X2 are each independently oxygen or sulfur and n is independently zero or one in the presence of a lubricating base oil. A neutralizing agent, component (C), may be reacted with the phosphorus acid and/or thiophosphorus acid intermediate formed by the reaction of components (A) and (B).
Bibliography:Application Number: US19920910967