Rare earth aggregate formulation using di-block copolmers
US7468413B2 · kind B2 · utility
11Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2005 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Sep 7, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L53/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to controlling aggregation of rare earth particles using block copolymers and rare earth base particles. More particularly, invention is also directed to forming stable complexes of rare earth aggregates by complexing rare earth base particles with oppositely charged-neutral di-block copolymers. Even more particularly, invention is also directed to forming stable complexes of rare earth nanoparticles by complexing rare earth ultrafine particles with oppositely charged-neutral di-block copolymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.