Multifunctional alternating interpolymer lubricating oil additive
US4139480A · kind A · utility
6Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1977 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Aug 25, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2227/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Multipurpose lubricating oil additives having utility as viscosity index improvers, antiwear agents, sludge dispersants and pour point depressants comprise reaction products of (1) nitrogen compounds having one or more amino groups and/or (2) oxygen compounds having one or more hydroxyl, epoxide or ether groups and/or (3) sulfur compounds and/or (4) hydrogen with alternating interpolymers of monomers comprising (A) one or more polar monomers; (B) one or more olefinic monomers; and (C) a monomer similar to (A) or (B) but containing in addition a reactive group that reacts with (1), (2), (3) or (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.