- 专利标题: GRANULAR CELLULOSE PRODUCT
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申请号: US17261192申请日: 2019-07-19
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公开(公告)号: US20210269623A1公开(公告)日: 2021-09-02
- 发明人: Juhana AHOLA , Kaisa KARISALMI , Christos RAMPOTAS , Perttu HEISKA , Mika SUVANTO
- 申请人: KEMIRA OYJ
- 申请人地址: FI HELSINKI
- 专利权人: KEMIRA OYJ
- 当前专利权人: KEMIRA OYJ
- 当前专利权人地址: FI HELSINKI
- 优先权: SE1850925-7 20180719,SE1850926-5 20180719
- 国际申请: PCT/EP2019/069592 WO 20190719
- 主分类号: C08L1/02
- IPC分类号: C08L1/02 ; C08L5/06 ; C08L5/14 ; C08L97/00 ; C08H8/00 ; B29B9/12
摘要:
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.