EP0209730A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Substituted 2,5-dimercapto-1,3,4-thiadiazoles and lubricating compositions containing same
Assignee: Vanderbilt Chemicals LLC
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Filing: 1986-06-19
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Granted: —
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Expires: 2006-06-19
Abstract
Abstract Disclosed are novel reaction products of 2,5-dimercapto-1,3,4-thiadiazole and epoxy compounds. These compounds are shown to be effective antiwear agents and antioxidants in lubricating compositions.
Inventors
- 👤 Thomas J. Karol
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 11:42
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; C10; C10M; C10M135/00; C10M135/32; C10M135/36; C10M2219/00; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
79 words
A compound having the structural formula wherein X represents groups; Y 1 and Y 2 represent groups; A 1 and A 2 represent hydrogen, hydroxy, hydrocarbyl, hydro- carbyloxy and hydrocarbylthio radicals wherein the hydrocarbyl is selected from the group consisting of alkyl, alkenyl, alkynyl, alkaryl, aryl, aralkyl, and cycloalkyl and may further contain an inert substituent group; R 1 and R 2 represent an alkyl, alkenyl, alkynyl, aryl, aralkyl, alkaryl and cycloalkyl group and n is 0 or 1.
Claim 2
Dependent Claim
79 words
A compound having the structural formula wherein X represents groups; Y 1 and Y 2 represent groups; A 1 and A 2 represent hydrogen, hydroxy, hydrocarbyl, hydro- carbyloxy and hydrocarbylthio radicals wherein the hydrocarbyl is selected from the group consisting of alkyl, alkenyl, alkynyl, alkaryl, aryl, aralkyl, and cycloalkyl and may further contain an inert substituent group; R 1 and R 2 represent an alkyl, alkenyl, alkynyl, aryl, aralkyl, alkaryl and cycloalkyl group and n is 0 or 1.
Claim 3
Dependent Claim
24 words
A compound according to claim 1 wherein A 1 and A 2 represent alkyl and alkoxy groups having from 1 to 100 carbon atoms.
Claim 4
Dependent Claim
10 words
The compound according to claim 1 which is 2,5-bis(3-dodecyl- oxy-2-hydroxypropylthio-1,3,4-thiadiazoie.
Claim 5
Dependent Claim
10 words
The compound according to claim 1 which is 2,5-bis(2-hydroxy- hexadecylthio)-1,3,4-thiadiazole.
Claim 6
Dependent Claim
10 words
The compound according to claim 1 which is 2,5-bis(2-acetoxy- hexadecylthio)-1,3,4-thiadiazole.
Claim 7
Dependent Claim
112 words
A composition comprising a major amount of oil of lubricating viscosity wherein said oil is a petroleum hydrocarbon oil or a synthetic oil and from about 0.1 to 10 percent by weight of a compound having the structural formula wherein X represents groups; Y 1 and Y 2 represent groups; A 1 and A 2 represent hydrogen, hydroxy, hydrocarbyl, hydro- carbyloxy and hydrocarbylthio radicals wherein the hydrocarbyl is selected from the group consisting of alkyl, alkenyl, alkynyl, alkaryl, aryl, aralkyl, and cycloalkyl and may further contain an inert substituent group; R 1 and R 2 represent an alkyl, alkenyl, alkynyl, aryl, aralkyl, alkaryl, and cycloalkyl group; and n is 0 or 1.
Claim 8
Dependent Claim
112 words
A composition comprising a major amount of oil of lubricating viscosity wherein said oil is a petroleum hydrocarbon oil or a synthetic oil and from about 0.1 to 10 percent by weight of a compound having the structural formula wherein X represents groups; Y 1 and Y 2 represent groups; A 1 and A 2 represent hydrogen, hydroxy, hydrocarbyl, hydro- carbyloxy and hydrocarbylthio radicals wherein the hydrocarbyl is selected from the group consisting of alkyl, alkenyl, alkynyl, alkaryl, aryl, aralkyl, and cycloalkyl and may further contain an inert substituent group; R 1 and R 2 represent an alkyl, alkenyl, alkynyl, aryl, aralkyl, alkaryl, and cycloalkyl group; and n is 0 or 1.
Claim 9
Dependent Claim
116 words
A composition comprising at least 40 percent by weight of water, from 0 to 15 percent by weight of a petroleum hydrocarbon oil or a synthetic oil and from about 0.1 to 10 percent by weight of a compound having the structural formula wherein X represents groups: Y 1 and Y 2 represent groups; A 1 and A 2 represent hydrogen, hydroxy, hydrocarbyl, hydro- carbyloxy and hydrocarbylthio radicals wherein the hydrocarbyl is selected from the group consisting of alkyl, alkenyl, alkynyl, alkaryl, aryl, aralkyl, and cycloalkyl and may further contain an inert substituent group; R 1 and R 2 represent an alkyl, alkenyl, alkynyl, aryl, aralkyl, alkaryl and cycloalkyl group; and n is 0 or 1.
Claim 10
Dependent Claim
116 words
A composition comprising at least 40 percent by weight of water, from 0 to 15 percent by weight of a petroleum hydrocarbon oil or a synthetic oil and from about 0.1 to 10 percent by weight of a compound having the structural formula wherein X represents groups: Y 1 and Y 2 represent groups; A 1 and A 2 represent hydrogen, hydroxy, hydrocarbyl, hydro- carbyloxy and hydrocarbylthio radicals wherein the hydrocarbyl is selected from the group consisting of alkyl, alkenyl, alkynyl, alkaryl, aryl, aralkyl, and cycloalkyl and may further contain an inert substituent group; R 1 and R 2 represent an alkyl, alkenyl, alkynyl, aryl, aralkyl, alkaryl and cycloalkyl group; and n is 0 or 1.
Claim 11
Dependent Claim
10 words
The composition of claim 4 wherein the compound is 2,5-bis-(2-hydroxymethyl-2-hydroxyethylthio)-1,3,4-thiadiazole.
References Cited (Backward Citations)
No citation records indexed.
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