| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_16782a7197e06cf1817527f4cc239147 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L1-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B5-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L1-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B5-14 |
| filingDate |
2018-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1761fed9363e1b2ccddfab6cc23a3e8a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_139989ca7bb9abaac2fa7549c88246cc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a691a23912a13d026c0edce57df9bc8b |
| publicationDate |
2018-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2018131721-A1 |
| titleOfInvention |
Sulfuric acid esterification modified cellulose nanofibers and method for producing cellulose nanofibers |
| abstract |
The present invention provides novel sulfuric acid esterification modified cellulose nanofibers. These cellulose nanofibers have an average fiber diameter of 1 nm to 500 nm; and the hydroxyl groups on the cellulose surfaces are modified by sulfuric acid esterification. The present invention also provides a method for producing cellulose nanofibers having high crystallinity and high aspect ratio and being in nano-size by means of an energy-saving chemical process that does not require physical pulverization and is carried out under mild conditions. The present invention also provides a method for producing modified cellulose nanofibers that are obtained by modifying the surfaces of these cellulose nanofibers by esterification or urethanization. The method for producing cellulose nanofibers according to the present invention comprises fibrillation of cellulose by having the cellulose impregnated with a fibrillation solution that contains dimethyl sulfoxide, at least one carboxylic acid anhydride selected from among acetic acid anhydride and propionic acid anhydride, and sulfuric acid. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021107147-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2021042350-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7215553-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022210141-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2018194080-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020097733-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7215554-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020066658-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020172446-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2021025049-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019194389-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7355973-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020050736-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7283192-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020097812-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2021246388-A1 |
| priorityDate |
2017-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |