Claims
- 1. A method for lubricating inorganic surfaces which comprises applying an aryl arenesulfonate between two inorganic surfaces in an amount sufficient to decrease the friction between the two surfaces, and moving the surfaces while the surfaces are in contact whereby friction between the surfaces is reduced relative to the friction between the surfaces in the absence of aryl arenesulfonate, wherein the aryl arenesulfonate is of the formula ASO.sub.3 A, ASO.sub.3 BSO3A, or (ASO.sub.3).sub.3 B wherein A is independently in each occurrence phenyl or substituted phenyl, wherein when A is substituted phenyl the phenyl can be substituted by halo, a ketone substituted by an aromatic group containing up to 12 carbon atoms or alkyl group containing up to 10 carbons atoms, alkyl containing up to 10 carbon atoms, polyhaloalkyl containing up to 10 carbon atoms, alkoxy containing up to 10 carbon atoms polyhaloalkoxy containing up to 10 carbon atoms, aryl containing up to 12 carbons, aralkyl wherein the aryl group contains up to 12 carbon atoms and the alkyl group contains up to 10 carbon atoms, haloaryl containing up to 12 carbons and substituted by up to 10 halo groups, aryloxy containing up to 12 carbons, polyhaloaryloxy containing up to 12 carbons, polyhaloalkylaryl wherein the aryl group contains up to 12 carbon atoms and wherein the alkyl group contains up to 10 carbon atoms, or polyhaloalkylaryloxy wherein the aryl group contains up to 12 carbon atoms and wherein the alkyl group contains up to 10 carbon atoms, and wherein B is benzene or two benzene rings connected by a divalent bridging group selected from the group consisting of C(CH.sub.3).sub.2, O, OCH.sub.2, OCH.sub.2 CH.sub.2, OCH.sub.2 CH.sub.2 O, C(CF.sub.3).sub.2, S, SO.sub.2, CO, and 9,9'-fluorene.
- 2. The method of claim 1 wherein A is substituted phenyl and the halo substituent is fluoro or chloro.
- 3. The method of claim 1 wherein A is substituted phenyl and the ketone substituent is methyl ketone or phenyl ketone.
- 4. The method of claim 1 wherein A is substituted phenyl and the alkyl substituent is an alkyl group containing up to eight carbons.
- 5. The method of claim 4 wherein the alkyl substituent is methyl, t-butyl, or 1,1,3,3-tetramethylbutyl.
- 6. The method of claim 1 wherein A is substituted phenyl and the polyhaloalkyl substituent is polyfluoroalkyl wherein the alkyl contains up to eight carbon atoms.
- 7. The method of claim 6 wherein the polyhaloalkyl substituent is trifluoromethyl.
- 8. The method of claim 1 wherein A is substituted phenyl and the alkoxy substituent is an alkoxy group containing up to seven carbon atoms.
- 9. The method of claim 8 wherein the alkoxy substituent is methoxy, n-butoxy, n-hexoxy, or n-heptoxy.
- 10. The method of claim 1 wherein A is substituted phenyl and the aralkyl substituent is tri-t-butylphenyl.
- 11. The method of claim 1 wherein A is substituted phenyl and the haloaryl substituent is fluorophenyl.
- 12. The method of claim 1 wherein A is substituted phenyl and the polyhaloalkoxy group is polyfluoroalkoxy.
- 13. The method of claim 12 wherein the polyhaloalkoxy substituent is trifluoromethoxy, 1,1,3,3,3-pentafluoro-n-propoxy, or 1,1,2,3,3,3-penta-fluoro-n-propoxy.
- 14. The method of claim 1 wherein A is substituted phenyl and the polyhaloalkylaryl substituent is trifluoromethylphenyl.
- 15. The method of claim 1 wherein A is substituted phenyl and the aryloxy group is phenoxy.
- 16. The method of claim 1 wherein A is substituted phenyl and the divalent bridging group is C(CH.sub.3).sub.2, O, C(CF.sub.3).sub.2, S, CO, or 9,9'-fluorene.
- 17. The method of claim 1 wherein the aryl arenesulfonate is of Formula I: ##STR10## wherein R is hydrogen, 4-methyl, 4-t-butyl, 4-methoxy, 4-n-butoxy, 4-phenoxy, 4-trifluoromethoxy, or 4-(1,1,2,3,3,3-hexafluoro)-n-propoxy; R' is hydrogen, 4-t-butyl, 3-methoxy, 4-methoxy, 3-n-butoxy, 3-phenoxy, 4-(1,1,3,3-tetra methyl)butyl, 2-t-butyl, 4-n-butoxy, 4-n-hexoxy, 3-methyl, 3-fluoro, 3-trifluoromethyl, 4-methyl ketone, or 4-phenyl ketone; or of Formula II: ##STR11## wherein R" is 3-methoxy, 3-trifluoromethyl, 3-phenoxy, 4-phenoxy, 4-(4-chloro)phenoxy, or (1,1,3,3-tetramethyl)butyl.
Parent Case Info
This application is a continuation-in-part of co-pending application Ser. No. 07/894,495, filed June 5, 1992. now abandoned.
US Referenced Citations (14)
Foreign Referenced Citations (4)
Number |
Date |
Country |
168021 |
Jan 1954 |
AUX |
453717 |
Dec 1948 |
CAX |
1242781 |
Jun 1967 |
DEX |
1064595 |
Apr 1967 |
GBX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
894495 |
Jun 1992 |
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