Process for preparing magnetically responsive microparticles
US5648124A · kind A · utility
82Cited by
2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 22, 1995 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | May 22, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2446/86
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Magnetically responsive microparticles and a method for their production are described. Oppositely charged core particles and magnetite are heterocoagulated, redispersed and optionally coated. The microparticles are colloidally stable and have negligible retentivity. Having now fully described the invention, it will be apparent to one of ordinary skill in the art that many changes and modifications can be made thereto without departing from the spirit or scope of the invention as set forth herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.