| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c999fee6428152a996011d506925c2d7 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L77-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-1092 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 |
| filingDate |
1996-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e750756fa562f4f104e511a48516626e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d757560cca825b12cec7fb01a1dabe40 |
| publicationDate |
1996-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0725099-A1 |
| titleOfInvention |
Method of preventing coloring of a water-soluble polyamino acid or of a salt thereof |
| abstract |
A method is provided for decoloring or for preventing or inhibiting coloring of an aqueous solution of a water-soluble polyamino acid or salt thereof prepared by heat polymerization and for improving storage stability thereof. The method involves adding a sulfite to an aqueous solution of a water-soluble polyamino acid or salt thereof prepared by heat polymerization. |
| priorityDate |
1995-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |