Patent ID: 8722092

Claim:
Process for producing a dispersion containing particles of amorphous cellulose comprising a) providing amorphous cellulose having a less than 20% by weight fraction of crystalline regions, wherein the amorphous cellulose used has an average degree of polymerization DP cuoxam in the range from 350 to 1500, b) optionally partially hydrolyzing said amorphous cellulose; and c) subsequently taking up said cellulose in water or a water-containing liquid medium and simultaneously or subsequently dispersing said cellulose by input of energy, wherein the energy input in step c) is at least 2000 kWh/t with regard to the mass of the amorphous cellulose provided, and optionally, finally diluting said dispersed cellulose with water, wherein no dispersant is added before, during or after the dispersing step c); and wherein the volume-average particle size (D50 value) of the particles is less than 200 nm, determined by dynamic laser light scattering.