Particle size reduction of pigments by non-salt milling
US4371643A · kind A · utility
13Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1981 |
| Grant date | Feb 1, 1983 |
| Priority date | — |
| Expiry date | Aug 31, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/006
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Pigment compositions prepared from a pigment, a hydroxylic solvent, and a polar polymer may be reduced in particle size by grinding in the absence of a salt to produce a pigment which may be used "as is" without any subsequent treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.