Compositions useful as additives for lubricants and liquid fuels
US5458793A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 1993 |
| Grant date | Oct 17, 1995 |
| Priority date | — |
| Expiry date | May 13, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition useful as a lubricating oil or fuel additive comprising at least one compound of the formula ##STR1## wherein each Ar is independently an aromatic group having from 4 to about 30 carbon atoms and from 0 to 3 optional substituents, each R is independently hydrocarbyl, R.sup.4 is a monovalent terminating group, each m is independently an integer ranging from 0 to about 10, x ranges from 0 to about 8, each Z is independently OH, lower alkoxy, (OR.sup.5).sub.b OR.sup.6 or 0.sup.- R.sup.1, R.sup.2, R.sup.3, and R.sup.6 are each independently, H or hydrocarbyl, b ranges from 1 to about 30, c from 1 to about 3, and y from 1 to about 10, the sum m+c does not exceed the number of valences of the corresponding Ar available for substitution and at least one A is the group ##STR2## wherein each R.sup.b, R.sup.c, R.sup.d and R.sup.e is independently H, hydroxyhydrocarbyl or hydrocarbyl, PA1 X is O, S or NR.sup.a wherein R.sup.a is H, hydrocarbyl, hydroxyhydrocarbyl, aminohydrocarbyl or ##STR3## wherein each Y is ##STR4## each R.sup.5 is independently a divalent hydrocarbyl group, each R.sup.7 is H, alkoxyalkyl, hydroxyalkyl, hydrocarbyl, aminohydrocarbyl, or N-alkoxyalkyl- or hydr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.