WS-491-6 is a high polymer dispersant and emulsifier with low HLB value and excellent stability. Can be used in a variety of dosage forms. Ultra-high molecular weight and special "star structure" can provide excellent anchoring performance, and can effectively solve the stratification and water precipitation phenomenon of some water-emulsion preparations.

In the higher content of the oil suspension preparation, the addition of about 2% can obtain a good viscosity reduction effect, and can improve the stability and dispersion of the preparation.

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