Production process
US6031030A · kind A · utility
1Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1998 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | May 14, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D7/80
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of a paint concentrate which comprises PA1 (a) milling or acid pasting a crude metal phthalocyanine to reduce the particles size thereof, thereby forming a modified crude metal phthalocyanine and PA1 (b) kneading a mixture of the modified crude metal phthalocyanine together with a paint vehicle comprising one or more paint solvents, the metal phthalocyanine being present in an amount of 20 to 80% by weight of the kneaded mixture, to give a paint concentrate containing the metal phthalocyanine in pigmentary form dispersed in the paint vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.