Polymeric amides for multifunctional VI improvers
US5156758A · kind A · utility
4Cited by
3References
14Claims
0Family size
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Key dates
| Filing date | Dec 4, 1990 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Dec 4, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2217/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A terpolymer having the formula: ##STR1## wherein n=0 to 12; x is about 15 to about 75 mole percent; y is about 25 to about 85 mole percent; z is about 0.1 to about 10 mole percent; R.sub.1 and R.sub.3 equal to H, C.sub.1 -C.sub.10 alkyl, alkyl amino, alkylpolyamino, alkyl amino ether, alkyl amino alcohol groups and R.sub.2 is an alkyl group having about 1 to about 8 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.