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US 2017/0051229 A1Published application
Lubricant additive compositions containing thiophosphates and thiophosphate derivatives
AssigneeAfton Chemical Corporation
InventorsDavid EDWARDS, Kristine DURBIN, Robert E. McCovick
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Abstract
The invention relates to thiophosphates and derivatives thereof useful as antiwear additive components, lubricant additive compositions and lubricant compositions each comprising such compounds, methods for making and using the same, including methods of lubricating machines and machine parts and methods of extending the useful life of elastomeric seal components of such machines.
Claims30
A lubricant additive composition comprising:
- a. a compound of formula (I)
- or a tribologically acceptable salt thereof,
- wherein A is:
- each R1 is the same or different and is independently selected from alkyl, alkenyl, cycloalkyl, cycloalkylalkyl, aryl, and aralkyl, wherein said aryl and aralkyl are optionally substituted with one to three substituents each independently selected from alkyl and alkenyl;
- each R2 and R3 are independently selected from H, alkyl, alkenyl, cycloalkyl and cycloalkylalkyl;
- Y is selected from the group consisting of alkyl, alkoxyalkyl, benzyl, and —R4—R5—R6;
- R4 is alkylene;
- R5 is selected from the group consisting of a bond, alkylene;
- —C(O)— and —C(R7)—;
- R6 is selected from the group consisting of alkyl, hydroxyalkyl, hydroxyalkyleneoxy, hydroxy and alkoxy;
- R7 is hydroxy;
- m is an integer from 2 to 8;
- X1 is R8,
- X2 is selected from the group consisting of R8,
- R8 is alkyl, alkenyl, cycloalkyl, cycloalkylalkyl, aryl, and aralkyl, wherein said aryl and aralkyl are optionally substituted with one to three substituents each independently selected from alkyl and alkenyl;
- and
- Z is
- wherein when X2 is R8, X1 is Z;
- and
- b. a detergent,
- wherein the detergent comprises a sulfonate or a phenate.
18 more elements
A lubricant additive composition comprising:
- a. a compound prepared by a process comprising:
- i. reacting a first phosphorodithioating agent with a first epoxide;
- ii. reacting the product of step i) with a second phosphorodithioating agent;
- iii. reacting the product of step ii) with a second epoxide;
- iv. reacting the product of step iii) with a third phosphorodithioating agent;
- and
- v. reacting the product of step iv) with a reactive group;
- and
- b. a detergent,
- wherein the detergent comprises a sulfonate or a phenate.
7 more elements
Dependencies are inferred from the claim text.