http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100489013-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d39a873503998aedb686b8bf906c4a1a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate | 2006-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2009-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e2742652ae7e4d310088a0fe6d5f9088 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f1d4bb63ea8e93558aa5046fbf83cf9e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_063864429b2b6a7521c0d017d37ad86a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50a8c6eca2b0f4e3a3730d9d2d559e09 |
| publicationDate | 2009-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-100489013-C |
| titleOfInvention | Method for preparing salt of poly aspartic acid |
| abstract | This invention provides a method for preparing poly(aspartic acid) and its salts. The method comprises: adding solvent and aspartic acid into a reaction kettle, and heating for condensation. The solvent and water can form azeotrope, and the condensation temperature is controlled near the azeotropic point. Therefore, aspartic acid can be taken out of the reaction kettle by the azetrope of solvent and water produced during the condensation reaction, and what remains in the reaction kettle is poly (aspartic acid). To prepare polyaspartate, alkali solution is added to hydrolyze poly (aspartic acid) and form polyaspartate. The method has such advantages as simple process and controllable product molecular weight. |
| priorityDate | 2006-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.