| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-322 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-46
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-28 |
| filingDate |
1981-03-05^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1983-04-19^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ccb55ff12a54a3f0010f6c85bba62dce |
| publicationDate |
1983-04-19^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4380615-A |
| titleOfInvention |
Diamine recovery process |
| abstract |
The efficiency of a rectifying zone for the recovery of diamine vapor from water vapor being separated from a reaction zone in which a polyamide-forming salt is being heated to form a prepolymer is improved by adding a dicarboxylic acid to the reflux water at the top of the rectifying zone. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5235009-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7544832-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7569194-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03068359-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7758757-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03068359-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100832822-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008009405-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1305840-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005020848-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009101589-A1 |
| priorityDate |
1981-03-05^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |