http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9115217-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_327536e50838958f4559affe682d2cb9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8be6a6c990669567cc455d32b00535e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B15-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B5-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B15-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B1-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B11-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B1-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B15-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B15-00 |
| filingDate | 2009-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2015-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6b51d0b79fcc3fb9afc7faee6053d4a3 |
| publicationDate | 2015-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-9115217-B2 |
| titleOfInvention | Process to prepare crosslinked cellulose ethers, crosslinked cellulose ethers obtainable by such process and the use thereof |
| abstract | The invention relates to a dry or slurry process to prepare phosphate-crosslinked cellulose ethers from a cellulose starting material comprising the steps of adding an alkalizing agent to the cellulose starting material to achieve mercerization, adding an etherifying agent to the reaction mixture to achieve etherification of the cellulose, and adding a crosslinking agent to the reaction mixture to achieve crosslinking of the cellulose, wherein at least part of the alkalizing agent is added to the cellulose starting material before the etherification and/or crosslinking reactions take place to obtain alkalized cellulose; the crosslinking agent and the etherifying agent are added one after the other in random order or simultaneously; the crosslinking agent is an alkali metal thmetaphosphate; and the crosslinking and etherification steps are performed at an elevated temperature. Additionally, the invention relates to crosslinked cellulose ethers obtainable by the above process having a viscosity and/or water absorption capacity higher than their non-crosslinked equivalents and the use thereof. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9914786-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2015307631-A1 |
| priorityDate | 2008-04-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 55.