Acrylic block copolymer low temperature flow modifiers in lubricating oils
US7906468B2 · kind B2 · utility
3Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2006 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Jan 1, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/25
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to acrylic block copolymers synthesized by a controlled free-radical process, and their use as low temperature flow modifiers in oil-based compositions. They are especially useful in modifying the low temperature flow behavior in lubricating oils. The acrylic copolymers are especially useful as pour point depressants in lubricating oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.