Method for making polymers-coated pigment particles using initiator-treated pigments
US5932633A · kind A · utility
17Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 22, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Aug 22, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/80
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of making polymer-coated pigment particles, involving the steps of providing a plurality of pigment particles, each of which has an outer surface coated with a layer of material that operates as a nucleus for initiating polymerization on the outer surface of each of the pigment particles. The pigment particles are mixed with a reaction mixture containing a solvent and a monomer material, wherein the layer of material coating each of the pigment particles causes the monomer material to polymerize on the outer surface of substantially each of the pigment particles to form a polymer coating thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.