Patent ID: 11891499
Assignee: KEMIRA OYJ
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B  D | IPC B  C  D

Claim 0:
1. A dried, water dispersible granular microfibrillated cellulose product comprising a microfibrillated cellulose originating from agricultural biomass, said microfibrillated cellulose product comprising ≤70 wt % of cellulose 8-25 wt % hemicellulose or 8-20 wt % hemicellulose, or 8-15 wt % hemicellulose, 1-15 wt % pectin, or 1-10 wt % pectin, or 1-8 wt % pectin, 0-12 wt %, lignin, or 0-10 wt % lignin, or 0-8 wt % lignin, and 0-8 wt % protein, or 0-6 wt % protein, or 0-5 wt % protein based on dry solids content of said product,, wherein said granular microfibrillated cellulose product has
a bulk density of 500-1200 kg/m3;
an average diameter D50 of 200-6000 μm;
a flowability of 10-30 ml/s or 10-25 ml/s, measured by a Copley scientific powder flowability tester having a stainless steel cylinder with orifice 16; and
a water content of at most 30 wt %, based on the total microfibrillated cellulose product, and wherein said dried granular microfibrillated cellulose product is resistant to bacterial and fungal contamination after being stored for at least 2 weeks at temperatures of 15-25° C. without the addition of any bactericides or fungicides.