Method of making dry pigment surface modified with polyethylene coating
US6103782A · kind A · utility
9Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1996 |
| Grant date | Aug 15, 2000 |
| Priority date | — |
| Expiry date | Jul 29, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Dry, coated pigment particles are obtained by first suspending uncoated pigment particles in an appropriate medium and then coating the particles while in suspension, with a polymer that is at or above the softening point for that polymer. Coating of the pigment particles is achieved by allowing the suspension to cool to a temperature below the solidification temperature for the polymer. The coated pigment particles are then recovered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.