Granular cellulose product
AssigneeKemira Oyj
InventorsJuhana Ahola, Kaisa Karisalmi, Christos Rampotas, Perttu Heiska, Mika Suvanto
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AssigneeKemira Oyj
InventorsJuhana Ahola, Kaisa Karisalmi, Christos Rampotas, Perttu Heiska, Mika Suvanto
Estimating the term…
The present invention relates to a granular microfibrillated cellulose product comprising a microfibrillated cellulose originating from agricultural biomass, said microfibrillated cellulose product comprising ≤75 wt % of cellulose, preferably ≤70 wt %, based on dry solids content of said product, wherein said granular microfibrillated cellulose product has a bulk density of 500-1200 kg/m3; a flowability of 5-60 ml/s, measured by a Copley scientific powder flowability tester having a stainless steel cylinder with orifice 16 or funnel with orifice 15; and a water content of at most 60 wt %, based on total microfibrillated cellulose product. The present invention further relates to its manufacture and use in and manufacture of paper and paperboard products.
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,
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