Materiales celulósicos y proceso para su preparación
The invention relates to a process for preparing a cellulosic sponge comprising treating an aqueous suspension of cellulose fibers with periodate; adjusting the pH of the resulting dialdehyde cellulose fibers suspension to 2.5 to 5.5; freezing the suspension obtained and thawing the three dimensiona...
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| creator | SVENSSON, Ingemar HIDALGO BETANZOS, Jokin TEJADO ETAYO, Alvaro SALVADOR POLO, Alejandro AZPEITIA LAKUNTZA, Maider |
| description | The invention relates to a process for preparing a cellulosic sponge comprising treating an aqueous suspension of cellulose fibers with periodate; adjusting the pH of the resulting dialdehyde cellulose fibers suspension to 2.5 to 5.5; freezing the suspension obtained and thawing the three dimensional structure to render the cellulosic sponge. The process may further comprise a step of drying to render a cellulosic foam. Both the new sponge and the new foam of the invention may also be further chemically modified obtaining a broad variety of derivatives with tailored properties which useful in many different applications. |
| format | Patent |
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The process may further comprise a step of drying to render a cellulosic foam. Both the new sponge and the new foam of the invention may also be further chemically modified obtaining a broad variety of derivatives with tailored properties which useful in many different applications.</description><language>spa</language><subject>AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G ; APPARATUS THEREFOR ; CHEMISTRY ; COMPOSITIONS BASED THEREON ; GENERAL PROCESSES OF COMPOUNDING ; METALLURGY ; ORGANIC MACROMOLECULAR COMPOUNDS ; PAPER-MAKING ; PRODUCTION OF CELLULOSE ; PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS ; REGENERATION OF PULPING LIQUORS ; TEXTILES ; THEIR PREPARATION OR CHEMICAL WORKING-UP ; WORKING-UP</subject><creationdate>2018</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=20180713&DB=EPODOC&CC=ES&NR=2672046T8$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20180713&DB=EPODOC&CC=ES&NR=2672046T8$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SVENSSON, Ingemar</creatorcontrib><creatorcontrib>HIDALGO BETANZOS, Jokin</creatorcontrib><creatorcontrib>TEJADO ETAYO, Alvaro</creatorcontrib><creatorcontrib>SALVADOR POLO, Alejandro</creatorcontrib><creatorcontrib>AZPEITIA LAKUNTZA, Maider</creatorcontrib><title>Materiales celulósicos y proceso para su preparación</title><description>The invention relates to a process for preparing a cellulosic sponge comprising treating an aqueous suspension of cellulose fibers with periodate; adjusting the pH of the resulting dialdehyde cellulose fibers suspension to 2.5 to 5.5; freezing the suspension obtained and thawing the three dimensional structure to render the cellulosic sponge. 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| subjects | AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS THEREFOR CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PAPER-MAKING PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP |
| title | Materiales celulósicos y proceso para su preparación |
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