| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5b62af5e0579952fdd1958acc42838a5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_56c3b731534e4fe46a803a00baf32c65
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_994cf95cf8ef069fdcf0a1bee42c0397 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L79-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L101-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1092 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-22 |
| filingDate |
2011-02-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dbe24a0f26a530afae5ffffa05f46883
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_838b89a8c2ee4d917cf337b19cdc5b4c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_da23f3dc8d875be0a227f6ca0f67f689 |
| publicationDate |
2012-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2012309909-A1 |
| titleOfInvention |
Methods for producing polyaspartic acid precursor polymer and polyaspartic acid salt |
| abstract |
Disclosed are a method for producing a polyaspartic acid precursor polymer by polymerization using at least one kind selected from a product obtained from maleic anhydride and ammonia and, maleamic acid as a monomer, wherein at least part of carboxyl groups in the monomers are a tertiary amine salt; and an industrially inexpensive and simple method for producing a polyaspartic acid salt by treating the polyaspartic acid precursor polymer obtained by this method with a basic aqueous solution. |
| priorityDate |
2010-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |