| abstract |
The present invention generally relates to spray drying methods of water-soluble or water-expandable vinyl-added polymer-containing dispersions, emulsions and microemulsions, to obtain substantially dry water-soluble or water-expandable polymer particles, to compositions of substantially dry water-soluble or water-expandable polymer particles. , Agglomeration methods of spray-dried polymer particles and methods of using spray-dried polymer particles and aggregates in water-treatment, mining, paper, food processing, soil conditioning, solution thickening, and oil recovery applications. |