Preparation of latexes of color coupler polymers
US5017667A · kind A · utility
7Cited by
2References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1988 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Dec 14, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F246/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of preparing a latex of a color coupler polymer which method in characterized in that it comprises dissolving in at least one ethylenically unsaturated non-coupling monomer which is liquid at room temperature at least two monomeric color couplers, the total amount of couplers being from 1 to 50% by weight of the non-coupling monomer, and dispersing this solution in an aqueous solution of a surfactant and a polmerization initiating system, and wherein the melting point of the mixture of monomeric color couplers is below the reaction temperature of said polmerization system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.