Radial polymers prepared by stabilized free radical polymerization
US7034079B2 · kind B2 · utility
7Cited by
32References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2002 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Oct 4, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M149/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a radial polymer comprising at least 3 polymeric arms and a central core comprising a polymerized di- or polyfunctional monomer, said process comprising the steps, The present invention also relates to polymers, including block copolymers prepared by the above process, additive concentrates for preparing lubricating oil compositions and lubricating oil compositions. In other embodiments, the present invention relates to block copolymers having more than two blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.