Method for preparing colloidal size particulate
US4680200A · kind A · utility
33Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1985 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Jul 22, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2989
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Colloidal size particles of an organic solid such as a pigment are encapsulated in a hydrophobic addition polymer such as a polymer of styrene by a polymerization process wherein a water-immiscible (hydrophobic) monomer is dispersed in an aqueous colloidal dispersion of the organic particles and subjected to conditions of emulsion polymerization. The resulting encapsulated particles are usefully employed as toners and pigments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.