Patent ID: 9562142
Date: 2017-02-07
CPC Classifications: C08J,C08K,G03G

Claim:
1. A method of producing latex particles by phase inversion emulsification (PIE) comprising: (a) dissolving a crystalline resin having an acid value in a mixture of at least two solvents, a first amount of base and water to form an emulsion; (b) adding a second amount of base to the emulsion; and (c) converting the emulsion of step (b) into latex particles by the addition of water, wherein the crystalline resin has an acid value in the range of from about 9.5 mg KOH/g of resin to about 11 mg KOH/g of resin and step (b) is carried out at a neutralization ratio in the range of from about 150% to about 170% to provide latex particles having a size of less than about 200 nm.