Invention Grant
- Patent Title: Method for producing porous cellulose beads and adsorbent employing same
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Application No.: US15029551Application Date: 2014-10-14
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Publication No.: US10189007B2Publication Date: 2019-01-29
- Inventor: Asuka Hayashi , Yoshikazu Kawai , Ken-ichiro Morio
- Applicant: KANEKA CORPORATION
- Applicant Address: JP Osaka-shi
- Assignee: KANEKA CORPORATION
- Current Assignee: KANEKA CORPORATION
- Current Assignee Address: JP Osaka-shi
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2013-215121 20131015
- International Application: PCT/JP2014/077362 WO 20141014
- International Announcement: WO2015/056681 WO 20150423
- Main IPC: B01J20/24
- IPC: B01J20/24 ; C07K17/12 ; B01J20/285 ; B01J20/30 ; B01J20/32 ; B01J20/286 ; C08J9/28 ; C08B15/10 ; C08J9/16 ; C07K1/14 ; C07K1/22

Abstract:
The objective of the present invention is to provide a method for easily and efficiently producing cellulose beads which have pore shape suitable for an adsorbent and of which adsorption performance is excellent without using highly toxic and highly corrosive auxiliary raw material and without industrially disadvantageous cumbersome step. The method for producing porous cellulose beads according to the present invention is characterized in comprising (a) the step of preparing a fine cellulose dispersion by mixing a low temperature alkaline aqueous solution and cellulose, (b) the step of preparing a mixed liquid by adding a crosslinking agent to the fine cellulose dispersion, (c) the step of preparing an emulsion by dispersing the mixed liquid in a dispersion medium, (d) the step of contacting the emulsion with a coagulating solvent.
Public/Granted literature
- US20160243521A1 METHOD FOR PRODUCING POROUS CELLULOSE BEADS AND ADSORBENT EMPLOYING SAME Public/Granted day:2016-08-25
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