| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e4e4f5caed68b7d5549a1267369910f0 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B37-003 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B37-08 |
| filingDate |
1989-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a711e9e3b6d6f85fdbd9ff1fb482b30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48384a193fadd200eaff02b36291ce67
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_92f8e27b5bff5f0e662372f4f0272058 |
| publicationDate |
1991-02-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
FR-2650282-A1 |
| titleOfInvention |
PROCESS FOR THE PREPARATION OF CHITOSAN BY N-DEACETYLATION OF CHITINE |
| abstract |
The present invention relates to a process for the preparation of chitosan by N-deacetylation of chitin in an alkaline and hot aqueous medium according to which the reaction medium comprises ethanol, an alkaline hydroxide such as sodium hydroxide in a substantially equal quantity. to the mass of water present and chitin, the proportion by mass of which varies between 7 and 30% depending on its density. The reaction temperature is between 20 and 100 degree (s) C and the time varies between 2 and 100 hours depending on the reaction temperature. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9964470-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19530689-B4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-783299-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19530689-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5670082-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9938893-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1247819-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9964470-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2701266-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0628655-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2701711-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5646271-A |
| priorityDate |
1989-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |