| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1092
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-00 |
| filingDate |
1995-01-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1997-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H09508428-A |
| titleOfInvention |
Production of polyaspartic acid from maleic acid and ammonia |
| abstract |
(57) [Summary]nPolyaspartic acid is prepared by thermal condensation of maleic acid and ammonium maleate obtained from ammonia. Granular solid ammonium maleate is heated to a temperature of at least about 170 ° C., thereby thermally condensing to polysuccinimide, which is base hydrolyzed to polyaspartate. |
| priorityDate |
1994-01-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |