Patent ID: 11926715
Assignee: BASF SE
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. A process for producing a pulverulent composition comprising at least one polymeric dispersant (PD) which comprises at least one structural unit comprising anionic groups and/or at least one structural unit comprising anionogenic groups and also at least one structural unit having polyether side chains, and at least one polysaccharide (PS), wherein the weight ratio of polymeric dispersant (PD) to polysaccharide (PS) is from 1/1 to 50/1 and the pulverulent composition comprises at least 65% by weight of the polymeric dispersant and the following process steps are performed:
a) production of an aqueous dispersion having a viscosity of the dispersion of less than 10 000 mPa·s, comprising the at least one polymeric dispersant (PD) and the at least one polysaccharide (PS),
b) spray drying of the aqueous dispersion produced in process step a).