http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-19545325-B4
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2bcaf91101a370a3d64e3190366357f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B37-003 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B37-08 |
| filingDate | 1995-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2005-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_195e9f233a0a66322ac9163dd18b8c2a |
| publicationDate | 2005-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DE-19545325-B4 |
| titleOfInvention | Process for the preparation of chitosanalkyl derivatives |
| abstract | Process for the preparation of Chitosanalkylderivaten in which a) deacetylating chitin alkaline in an aqueous-organic reaction medium, b) alkylating the chitosan thus obtained without intermediate isolation in the aqueous-organic reaction medium by addition of an alkylating agent, characterized, in that the deacetylation (process step a)) and the alkylation (process step b)) are carried out in the same heterogeneous reaction medium, the mass ratio of aqueous-organic reaction medium to chitin / chitosan in the range from 1: 1 to 2: 1 and the ratio of water to partially or completely water-miscible solvent between 0.5: 1 and 2: 1 is maintained / is, wherein the process step a) at temperatures of 50 ° C to 120 ° C and reaction times of 0.5 to 60 hours and the Process step b) at temperatures of 30 ° C to 120 ° C and reaction times of 0.5 to 24 hours performed. |
| priorityDate | 1995-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 82.