Process for preparing fine pigment dispersions
US6071989A · kind A · utility
18Cited by
17References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1998 |
| Grant date | Jun 6, 2000 |
| Priority date | — |
| Expiry date | Jun 30, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/105
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Preparation of pigment dispersions by PA1 a1) subjecting a mixture A comprising a latent pigment and a polymer to thermal, chemical or photolytic treatment and PA1 b) then adding a solvent, or PA1 a2) subjecting a mixture B comprising a latent pigment, a polymer and a solvent to thermal, chemical or photolytic treatment, new pigment dispersions and new latent pigments, their use in the process according to the invention for preparing the fine pigment dispersions and the use of the dispersions according to the invention for pigmenting high molecular mass material, including color filters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.