Patent ID: 11926722
Assignee: SOLVAY SA
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 5:
6. The chemical blowing agent according to claim 1, wherein the functionalized particulate sodium bicarbonate is obtained by at least one of the following processes:
by spray-drying, wherein the additive is dissolved in a sodium bicarbonate-containing solution;
by grinding or co-grinding the sodium bicarbonate with the additive(s) in emulsion or powder form;
by spray coating and granulation within a fluidized bed,
by spray agglomeration within a fluidized bed,
by spray chilling,
by roller compaction,
by extrusion; and/or
by simultaneous mixing/extrusion;
optionally followed by subjecting the thus obtained functionalized particulate sodium bicarbonate to milling to reduce its mean particle size.