Patent ID: 8383198

Claim:
A process for producing a water dispersible polymer composition comprising the steps of i) foaming a fluid composition comprising a foaming agent and a water insoluble compound A) having a weight average molecular weight of less than 10,000 or a water-insoluble polymer having a weight average molecular weight of at least 10,000, wherein the fluid composition does not include sugars; ii) contacting the produced foam with water-soluble polymer particles having a weight average molecular weight of at least 10,000 selected from water-soluble carboxy-C 1 -C 3 -alkyl cellulose, carboxy-C 1 -C 3 -alkyl hydroxy-C 1 -C 3 -alkyl cellulose, C 1 -C 3 -alkyl cellulose, C 1 -C 3 -alkyl hydroxy-C 1-3 -alkyl cellulose, hydroxy-C 1-3 -alkyl cellulose, mixed hydroxy-C 1 -C 3 -alkyl cellulose, or mixed C 1 -C 3 -alkyl cellulose; and iii) drying the particles, whereby the foam collapses during the contacting and/or drying step and the water-soluble polymer particles are encrusted with the compound A) or the water-insoluble polymer B).