BR112021022016A2 - Método para manufaturar uma suspensão de nanofibrilas de celulose - Google Patents
Método para manufaturar uma suspensão de nanofibrilas de celuloseInfo
- Publication number
- BR112021022016A2 BR112021022016A2 BR112021022016A BR112021022016A BR112021022016A2 BR 112021022016 A2 BR112021022016 A2 BR 112021022016A2 BR 112021022016 A BR112021022016 A BR 112021022016A BR 112021022016 A BR112021022016 A BR 112021022016A BR 112021022016 A2 BR112021022016 A2 BR 112021022016A2
- Authority
- BR
- Brazil
- Prior art keywords
- suspension
- cellulose
- manufacturing
- cellulose fibers
- aqueous suspension
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/02—Oxycellulose; Hydrocellulose; Cellulosehydrate, e.g. microcrystalline cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
- C08L1/04—Oxycellulose; Hydrocellulose, e.g. microcrystalline cellulose
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Artificial Filaments (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
método para manufaturar uma suspensão de nanofibrilas de celulose. a presente invenção se refere a um método para manufaturar 100 uma suspensão de nanofibrilas de celulose a partir de uma suspensão aquosa de fibras de celulose compreendendo as seguintes etapas: - tratamento químico 110, em um reator, da suspensão aquosa de fibras de celulose por pelo menos um agente de funcionalização, o tratamento químico sendo configurado para funcionalizar as fibras de celulose em uma taxa de modificação que é mais alta, de fato, estritamente mais alta, do que 1,0 mmol/g, e - tratamento mecânico 120, em uma extrusora de parafusos geminados, da suspensão aquosa de fibras de celulose funcionalizadas, cada parafuso da extrusora compreendendo pelo menos dois segmentos de fibrilação. este método otimizado torna possível produzir uma suspensão de nanofibrilas de celulose de boa qualidade, com um alto conteúdo de matéria seca, e ao mesmo tempo em que consome menos energia do que os métodos da técnica anterior.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1904639A FR3095647B1 (fr) | 2019-05-02 | 2019-05-02 | Procédé de fabrication d’une suspension de nanofibrilles de cellulose |
| PCT/EP2020/062284 WO2020221934A1 (fr) | 2019-05-02 | 2020-05-04 | Procédé de fabrication d'une suspension de nanofibrilles de cellulose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112021022016A2 true BR112021022016A2 (pt) | 2022-01-18 |
Family
ID=67514924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112021022016A BR112021022016A2 (pt) | 2019-05-02 | 2020-05-04 | Método para manufaturar uma suspensão de nanofibrilas de celulose |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20220220285A1 (pt) |
| EP (1) | EP3962960A1 (pt) |
| JP (1) | JP2022531407A (pt) |
| BR (1) | BR112021022016A2 (pt) |
| CA (1) | CA3138623A1 (pt) |
| FR (1) | FR3095647B1 (pt) |
| WO (1) | WO2020221934A1 (pt) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113150311A (zh) * | 2021-04-16 | 2021-07-23 | 陕西科技大学 | 一种纳米纤化纤维素悬浮液及其制备方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7700764B2 (en) | 2005-06-28 | 2010-04-20 | Akzo Nobel N.V. | Method of preparing microfibrillar polysaccharide |
| BR112012009802A2 (pt) | 2009-10-26 | 2016-11-22 | Stora Enso Oyj | processo para a produção de celulose microfibrilada e celulose microfibrilada produzida de acordo com o processo |
| CN104583492B (zh) | 2012-06-13 | 2018-03-06 | 缅因大学系统理事会 | 制备纳米纤维素纤维的能量有效的方法 |
| FI127111B (en) | 2012-08-20 | 2017-11-15 | Stora Enso Oyj | Process and intermediate for the production of highly refined or microfibrillated cellulose |
| JP6570006B2 (ja) * | 2015-07-15 | 2019-09-04 | 日本製紙株式会社 | セルロースナノファイバー分散体の製造方法および乾燥した化学変性セルロース繊維の分散方法 |
-
2019
- 2019-05-02 FR FR1904639A patent/FR3095647B1/fr active Active
-
2020
- 2020-05-04 BR BR112021022016A patent/BR112021022016A2/pt unknown
- 2020-05-04 WO PCT/EP2020/062284 patent/WO2020221934A1/fr unknown
- 2020-05-04 US US17/608,057 patent/US20220220285A1/en active Pending
- 2020-05-04 JP JP2021565061A patent/JP2022531407A/ja active Pending
- 2020-05-04 CA CA3138623A patent/CA3138623A1/fr active Pending
- 2020-05-04 EP EP20724441.9A patent/EP3962960A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020221934A1 (fr) | 2020-11-05 |
| FR3095647B1 (fr) | 2021-05-28 |
| JP2022531407A (ja) | 2022-07-06 |
| CA3138623A1 (fr) | 2020-11-05 |
| FR3095647A1 (fr) | 2020-11-06 |
| EP3962960A1 (fr) | 2022-03-09 |
| US20220220285A1 (en) | 2022-07-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B06W | Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette] |