公开(公告)号：US20210269623A1

公开(公告)日：2021-09-02

申请号：US17261192

申请日：2019-07-19

Applicant: KEMIRA OYJ

Inventor： Juhana AHOLA ,  Kaisa KARISALMI ,  Christos RAMPOTAS ,  Perttu HEISKA ,  Mika SUVANTO

IPC: C08L1/02 ,  C08L5/06 ,  C08L5/14 ,  C08L97/00 ,  C08H8/00 ,  B29B9/12

Abstract: 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 usein and manufacture of paper and paperboard products.