Process for producing colorant dispersoid
US7528182B2 · kind B2 · utility
7Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2005 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Feb 18, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/0928
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for producing a colorant comprises the step of mixing a coloring material and a block copolymer in a flow channel of a microreactor to obtain a dispersion comprising a colorant as a dispersoid. The flow-mixing channel may have a cross-sectional area of not less than 0.5 mm2, and the ratio of the total cross-sectional areas of flow channels connected with the flow-mixing channel to the cross-sectional area of the flow-mixing channel ranges from 0.01 to 0.1, and a rectangular cross-section having a ratio of a flow channel depth to a flow channel width of not less than 0.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.