| abstract |
Disclosed is a method of preparing dry polymer granules for use as a detergent additive, which are water-soluble or water-dispersible, have low hygroscopicity, and have both the density and particle size required for preparing detergent tablets. Provide a way to A method for producing polymer granules, comprising: (a) introducing a neutralized emulsion polymer having a Tg in the range of -20C to 250C as seed particles; and (b) neutralization. Spraying the prepared aqueous solution of the emulsion polymer onto the seed particles to achieve a particle size in the range of 100 μm to 3000 μm, a bulk density of more than 500 g / l, and low hygroscopicity. [Selection diagram] None |