Process for producing porous cellulose beads using alkali aqueous solution
A process for producing porous cellulose beads of the present invention is characterized by comprising the steps of: a) mixing an alkali aqueous solution and cellulose to prepare cellulose micro dispersion at low temperature, b) adding water to the cellulose micro dispersion to prepare cellulose slu...
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| creator | Karasugi, Keiichi Honda, Tatsuya Okubo, Takahiro Kawai, Yoshikazu Hirano, Masaru Konoike, Fuminori |
| description | A process for producing porous cellulose beads of the present invention is characterized by comprising the steps of:
a) mixing an alkali aqueous solution and cellulose to prepare cellulose micro dispersion at low temperature,
b) adding water to the cellulose micro dispersion to prepare cellulose slurry, and
d) bringing the cellulose slurry into contact with coagulation solvent. A carrier for ligand immobilization of the present invention is characterized by being by shrinking polysaccharide porous beads not less than 10% by a shrinkage rate defined by the following formula, and crosslinking the polysaccharide porous beads: Shrinkage rate % = 1 V 2 / V 1 × 100 (wherein, V 1 indicates the gel volume of polysaccharide porous beads before shrinkage, and V 2 indicates the gel volume of polysaccharide porous beads after shrinkage). |
| format | Patent |
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a) mixing an alkali aqueous solution and cellulose to prepare cellulose micro dispersion at low temperature,
b) adding water to the cellulose micro dispersion to prepare cellulose slurry, and
d) bringing the cellulose slurry into contact with coagulation solvent. A carrier for ligand immobilization of the present invention is characterized by being by shrinking polysaccharide porous beads not less than 10% by a shrinkage rate defined by the following formula, and crosslinking the polysaccharide porous beads: Shrinkage rate % = 1 V 2 / V 1 × 100 (wherein, V 1 indicates the gel volume of polysaccharide porous beads before shrinkage, and V 2 indicates the gel volume of polysaccharide porous beads after shrinkage).</description><language>eng</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS ; DERIVATIVES THEREOF ; GENERAL PROCESSES OF COMPOUNDING ; METALLURGY ; ORGANIC CHEMISTRY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PEPTIDES ; PERFORMING OPERATIONS ; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL ; POLYSACCHARIDES ; SEPARATION ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; THEIR RELEVANT APPARATUS ; TRANSPORTING ; WORKING-UP</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190305&DB=EPODOC&CC=US&NR=10221211B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190305&DB=EPODOC&CC=US&NR=10221211B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Karasugi, Keiichi</creatorcontrib><creatorcontrib>Honda, Tatsuya</creatorcontrib><creatorcontrib>Okubo, Takahiro</creatorcontrib><creatorcontrib>Kawai, Yoshikazu</creatorcontrib><creatorcontrib>Hirano, Masaru</creatorcontrib><creatorcontrib>Konoike, Fuminori</creatorcontrib><title>Process for producing porous cellulose beads using alkali aqueous solution</title><description>A process for producing porous cellulose beads of the present invention is characterized by comprising the steps of:
a) mixing an alkali aqueous solution and cellulose to prepare cellulose micro dispersion at low temperature,
b) adding water to the cellulose micro dispersion to prepare cellulose slurry, and
d) bringing the cellulose slurry into contact with coagulation solvent. A carrier for ligand immobilization of the present invention is characterized by being by shrinking polysaccharide porous beads not less than 10% by a shrinkage rate defined by the following formula, and crosslinking the polysaccharide porous beads: Shrinkage rate % = 1 V 2 / V 1 × 100 (wherein, V 1 indicates the gel volume of polysaccharide porous beads before shrinkage, and V 2 indicates the gel volume of polysaccharide porous beads after shrinkage).</description><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</subject><subject>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</subject><subject>CHEMISTRY</subject><subject>COMPOSITIONS BASED THEREON</subject><subject>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</subject><subject>DERIVATIVES THEREOF</subject><subject>GENERAL PROCESSES OF COMPOUNDING</subject><subject>METALLURGY</subject><subject>ORGANIC CHEMISTRY</subject><subject>ORGANIC MACROMOLECULAR COMPOUNDS</subject><subject>PEPTIDES</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</subject><subject>POLYSACCHARIDES</subject><subject>SEPARATION</subject><subject>THEIR PREPARATION OR CHEMICAL WORKING-UP</subject><subject>THEIR RELEVANT APPARATUS</subject><subject>TRANSPORTING</subject><subject>WORKING-UP</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2019</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNykEKwjAQQNFsXIj1DtMDCCbeQLGIK0G7LmM6leCQiZnO_aXgAVz9xX9rd71ViaQKk1QoVUaLKb-gSBVTiMRsLErwJBwVTJeJ_EZOgB-jBamwzUly41YTstL2141ru_PjdNlRkYG0YKRM89Df_T4EH7w_hsM_5gt2tjXN</recordid><startdate>20190305</startdate><enddate>20190305</enddate><creator>Karasugi, Keiichi</creator><creator>Honda, Tatsuya</creator><creator>Okubo, Takahiro</creator><creator>Kawai, Yoshikazu</creator><creator>Hirano, Masaru</creator><creator>Konoike, Fuminori</creator><scope>EVB</scope></search><sort><creationdate>20190305</creationdate><title>Process for producing porous cellulose beads using alkali aqueous solution</title><author>Karasugi, Keiichi ; Honda, Tatsuya ; Okubo, Takahiro ; Kawai, Yoshikazu ; Hirano, Masaru ; Konoike, Fuminori</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US10221211B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2019</creationdate><topic>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G</topic><topic>CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY</topic><topic>CHEMISTRY</topic><topic>COMPOSITIONS BASED THEREON</topic><topic>COMPOSITIONS OF MACROMOLECULAR COMPOUNDS</topic><topic>DERIVATIVES THEREOF</topic><topic>GENERAL PROCESSES OF COMPOUNDING</topic><topic>METALLURGY</topic><topic>ORGANIC CHEMISTRY</topic><topic>ORGANIC MACROMOLECULAR COMPOUNDS</topic><topic>PEPTIDES</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL</topic><topic>POLYSACCHARIDES</topic><topic>SEPARATION</topic><topic>THEIR PREPARATION OR CHEMICAL WORKING-UP</topic><topic>THEIR RELEVANT APPARATUS</topic><topic>TRANSPORTING</topic><topic>WORKING-UP</topic><toplevel>online_resources</toplevel><creatorcontrib>Karasugi, Keiichi</creatorcontrib><creatorcontrib>Honda, Tatsuya</creatorcontrib><creatorcontrib>Okubo, Takahiro</creatorcontrib><creatorcontrib>Kawai, Yoshikazu</creatorcontrib><creatorcontrib>Hirano, Masaru</creatorcontrib><creatorcontrib>Konoike, Fuminori</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Karasugi, Keiichi</au><au>Honda, Tatsuya</au><au>Okubo, Takahiro</au><au>Kawai, Yoshikazu</au><au>Hirano, Masaru</au><au>Konoike, Fuminori</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Process for producing porous cellulose beads using alkali aqueous solution</title><date>2019-03-05</date><risdate>2019</risdate><abstract>A process for producing porous cellulose beads of the present invention is characterized by comprising the steps of:
a) mixing an alkali aqueous solution and cellulose to prepare cellulose micro dispersion at low temperature,
b) adding water to the cellulose micro dispersion to prepare cellulose slurry, and
d) bringing the cellulose slurry into contact with coagulation solvent. A carrier for ligand immobilization of the present invention is characterized by being by shrinking polysaccharide porous beads not less than 10% by a shrinkage rate defined by the following formula, and crosslinking the polysaccharide porous beads: Shrinkage rate % = 1 V 2 / V 1 × 100 (wherein, V 1 indicates the gel volume of polysaccharide porous beads before shrinkage, and V 2 indicates the gel volume of polysaccharide porous beads after shrinkage).</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DERIVATIVES THEREOF GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PEPTIDES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLYSACCHARIDES SEPARATION THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING WORKING-UP |
| title | Process for producing porous cellulose beads using alkali aqueous solution |
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