Process for preparing polyester emulsions
US9201321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2013 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Mar 8, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G9/09392
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A phase inversion emulsification process includes dissolving a polyester resin in a mixture comprising (1) an organic solvent, (2) a first portion of a total amount of neutralizing agent, and (3) a first portion of water, neutralizing the dissolved polyester resin with a second portion of neutralizing agent, the second portion of neutralizing agent including the remaining amount of the total amount neutralizing agent, forming an emulsion by adding a second portion of water after the neutralizing step, and removing a portion of the organic solvent from the emulsion to provide a latex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.