Fuel and lubricant additives
US6165237A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1998 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Aug 17, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2070/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Compounds of the general formula I EQU Z--CH.sub.2 --NY.sub.2-n H.sub.n (I) where PA1 n is 0 or 1, PA1 z is a straight-chain or branched polyalkyl radical having a number average molecular weight of from about 150 to 40,000, and PA1 Y is a radical of the formula IIa or IIb ##STR1## where the radicals R, R.sup.1 and R.sup.2 independently of one another, are each hydrogen, an unsubstituted or substituted alkyl, alkenyl or alkynyl radical or an unsubstituted or substituted cycloalkyl, aryl or arylalkyl radical, which may carry one or more heteroatoms, and PA1 A is an alkyleneimine radical; or, if PA1 n is 0, one of the radicals Y may be a polyoxyalkylene radical, and processes for their preparation and fuel and lubricant compositions, and mixtures of additives, which contain the novel compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.