Processes for spray drying of polymer-containing dispersions water-in-oil emulsions and water-in-oil microemulsions
AssigneeCytec Technology Corp.
InventorsWilliam Bloor Davies, John Edward Healy, Gary Kaui Lani Miller, Joseph J. Kozakiewicz
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Abstract
Processes for spray drying water-soluble and water-swellable vinyl-addition polymer-containing dispersions, emulsions and microemulsions to obtain substantially dry water-soluble or water-swellable polymer particles, compositions of substantially dry water-soluble or water-swellable polymer particles, methods of agglomerating spray-dried polymer particles, and methods of using spray-dried polymer particles and agglomerates in water-treating, mining, paper, food processing, soil conditioning, solution thickening, biotechnological, and oil recovery applications are disclosed.
Claims16
A process for producing substantially dry water-soluble or water-swellable vinyl-addition polymer particles comprising (a) spray-drying a vinyl-addition polymer-containing water-in-oil emulsion or water-in-oil microemulsion into a gas stream with a residence time of about 8 to about 120 seconds and at an outlet temperature of about 70° C. to less than 100° C. and (b) collecting resultant polymer particles.
A process for producing substantially dry water-soluble or water-swellable polymer agglomerates comprising (a) spray-drying a vinyl-addition polymer-containing dispersion, water-in-oil emulsion, or water-in-oil microemulsion (b) collecting resultant polymer particles;
- and (c) agglomerating said resultant polymer particles.
A process for producing substantially dry water-soluble or water-swellable vinyl-addition polymer particles comprising (a) spray-drying a vinyl-addition polymer-containing water-in-oil emulsion or water-in-oil microemulsion into a gas stream with a residence time of about 8 to about 120 seconds and at an outlet temperature of about 70° C. to less than 100° C. and (b) collecting resultant polymer particles, wherein said vinyl-addition polymer-containing water-in-oil emulsion or water-in-oil microemulsion is comprised of a functionalized polymer.
A process for producing substantially dry water-soluble or water-swellable polymer agglomerates comprising (a) spray-drying a vinyl-addition polymer-containing dispersion, water-in-oil emulsion, or water-in-oil microemulsion (b) collecting resultant polymer particles;
- and (c) agglomerating said resultant polymer particles, wherein said vinyl-addition polymer-containing water-in-oil emulsion or water-in-oil microemulsion is comprised of a functionalized polymer.
A process for producing substantially dry water-soluble or water-swellable vinyl-addition polymer particles comprising (a) spray-drying a vinyl-addition polymer-containing water-in-oil emulsion, water-in-oil microemulsion or dispersion into a gas stream with a residence time of about 8 to about 120 seconds and at an outlet temperature of about 70° C. to about 150° C. and (b) collecting resultant polymer particles, wherein said water-in-oil emulsion, water-in-oil microemulsion or dispersion is comprised of a volatile oil.
Dependencies are inferred from the claim text.