Processes for producing polyester latexes via solvent-free emulsification
US8618192B2 · kind B2 · utility
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73References
17Claims
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Key dates
| Filing date | Feb 5, 2010 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Feb 5, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for making a latex emulsion suitable for use in a toner composition includes contacting at least one amorphous polyester resin with a viscosity reducing additive in the absence of an organic solvent to form a resin mixture either via an extruder or batch process, and adding a surfactant, neutralizing agent, and deionized water to the resin mixture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.