| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e83d93ed02bbd6159e99b5a7796e3686 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-16 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-12 |
| filingDate |
1994-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1996-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0c3afd981fb1354ef0d751fbeb467c1f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ec71947e774678c677b71dca8360aa2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53b20215f9dc959b1ccf8791ae2fa203
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f8277894baace8b08aa072cb2183d211 |
| publicationDate |
1996-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5556890-A |
| titleOfInvention |
Reclaiming ε-caprolactam from carpet waste |
| abstract |
The present invention is for a method of preparing purified epsilon -caprolactam from carpet waste containing nylon-6. Contaminated epsilon -caprolactam is obtained by depolymerizing nylon-6 from carpet waste. A mixture of the contaminated epsilon -caprolactam and water is then hydrogenated in the presence of hydrogen and a hydrogenation catalyst in order to produce purified epsilon -caprolactam. The amount of contaminated epsilon -caprolactam in the mixture can be between 10 and 95% by weight. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7022844-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6093788-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6187917-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5990306-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100424072-C |
| priorityDate |
1993-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |