Copolymers from acrylate dicarboxylic compounds and diisobutylene as oil additives
US4359325A · kind A · utility
20Cited by
3References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1980 |
| Grant date | Nov 16, 1982 |
| Priority date | — |
| Expiry date | Dec 15, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/933
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Copolymers comprising acrylic ester units, dicarboxylic compounds units and diisobutylene units and whose average molecular weight by number is from 500 to 250,000 are useful for improving the cold-flow properties of lube oils and other hydrocarbon oils such as diesel oil, heavy fuel oil, residual fuel oil and crude petroleum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.