Process for the manufacture of nanoparticle organic pigments
US6837918B2 · kind B2 · utility
18Cited by
19References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2001 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Dec 20, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y30/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process and apparatus collects pigment nanoparticles by forming a vapor of a pigment that is solid at room temperature, the vapor of the pigment being provided in an inert gaseous carrying medium. At least some of the pigment is solidified within the gaseous stream. The gaseous stream and pigment material is moved in a gaseous carrying environment into or through a dry mechanical pumping system. While the particles are within the dry mechanical pumping system or after the nanoparticles have moved through the dry pumping system, the pigment material and nanoparticles are contacted with an inert liquid collecting medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.