| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d648658dd620f548c24de39659a5e9e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C233-46 |
| filingDate |
1994-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1995-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3209d95d1fdbf6b9c05ee1e38eda52b4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_267bd59eec34483a7dc27ed167f70cac
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_304b209dd80b368d5a0ce0b3cdadb810
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56975b2e26d9dd43d7b0857e15b2bee6 |
| publicationDate |
1995-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5393901-A |
| titleOfInvention |
Aqueous process for preparing amido-carboxylic acids |
| abstract |
This invention relates to a process for preparing amido-carboxylic acids in water wherein hydrolysis and amidation reactions are conducted simultaneously in a single vessel. The process involves three steps. The first step involves heating at a temperature of 150 DEG C.-300 DEG C. for 2 to 10 hours, a mixture containing water, a nitrogen containing compound selected from the group consisting of a lactam and an amino acid, and a carboxylic acid or ester. The second step involves cooling the reaction mixture to obtain a two phase system containing an aqueous layer and an organic layer. The third step involves separating the amido-carboxylic acid containing organic layer from the aqueous layer. The presence of water aids in product isolation by phase separation and recycle of the reactants. Amido-carboxylic acids are used to make bleach activators for detergents. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6207843-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6498124-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004053809-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6800771-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9709299-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5717118-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9365762-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6527690-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6500973-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6497644-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6583095-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6660712-B2 |
| priorityDate |
1994-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |