| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_52a65b677bbedbe7bf090dd556a7cc43 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-3804 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-262
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-28019
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-265
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B5-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J20-286
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D15-3804
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N30-48 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J20-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B5-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D15-38 |
| filingDate |
2006-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d7c82f0b03b15a9125b27ab25d07046
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_51e831f3661ff88cdf33b5ced99ac9cb |
| publicationDate |
2010-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-2465301-A |
| titleOfInvention |
Spherical sulphated cellulose |
| abstract |
A process for producing spherical sulphated cellulose comprises a step of subjecting spherical cellulose to sulphate esterification using a mixture of N,N-dimethylformamide and sulphuric anhydride. The spherical cellulose may be crosslinked and may be obtained by using crystalline cellulose as a starting material. The cellulose is typically subjected to an initial dehydration treatment carried out by liquid substitution using a water-soluble solvent, such as N,N-dimethylformamide. After sulphate esterification, the modified cellulose may be neutralized with an alkali. The sulphate esterification treatment may be conducted at 0-70°C. |
| priorityDate |
2005-09-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |