发明授权
- 专利标题： Method for processing nanofibrillar cellulose and product obtained by the method
- 专利标题（中）： 纳米纤维素纤维素加工方法及其制备方法
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申请号： US13984550申请日： 2012-02-08
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公开(公告)号： US09469696B2公开(公告)日： 2016-10-18
- 发明人: Antti Laukkanen , Jan-Erik Teirfolk , Markus Nuopponen
- 申请人： Antti Laukkanen , Jan-Erik Teirfolk , Markus Nuopponen
- 申请人地址： FI Helsinki
- 专利权人： UPM-KYMMEME CORPORATION
- 当前专利权人： UPM-KYMMEME CORPORATION
- 当前专利权人地址： FI Helsinki
- 代理机构： Oliff PLC
- 优先权： FI20115131 20110210
- 国际申请： PCT/FI2012/050120 WO 20120208
- 国际公布： WO2012/107642 WO 20120816
- 主分类号： D21H11/18
- IPC分类号： D21H11/18 ; D01D5/06 ; D01F2/00 ; C08B15/04 ; B01J13/00
摘要：
The invention relates to a method for processing an aqueous gel of nanofibrillar cellulose by removing water from the aqueous gel by means of an organic solvent miscible with water. In the method: aqueous gel is introduced into a volume of organic solvent miscible with water in a controlled manner so that the aqueous gel is kept as a separate phase and forms discrete physical entities containing the nanofibrillar cellulose within the phase; water is changed with the organic solvent in said discrete physical entities of nanofibrillar cellulose; and the physical entities are separated from the volume of organic solvent.