| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9b7435b538440fad98f9d06253722986 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-41
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-688
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G75-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D1-123
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07G99-002 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D1-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-41
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-688
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07G99-00 |
| filingDate |
1969-11-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1973-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1a8ec1814d415252818703ab1d9d0e23 |
| publicationDate |
1973-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3742029-A |
| titleOfInvention |
Unsaturated carboxylic salt materials and derivatives thereof |
| abstract |
This invention relates to polycarboxylic acids having more than three carboxylic acid groups and alkali and alkaline earth metal salts thereof prepared by the pyrolysis of alkaline earth metal salts of citric acid. The compounds are intermediates for sulfoacid materials used in preparing surface active agents, ion exchange materials and detergents. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6624134-B1 |
| priorityDate |
1966-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |