| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dcb88e6c103e4974b104452c51fbb4a5 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2601-14 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-1809
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C269-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-06 |
| filingDate |
1993-04-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1994-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e1457df798bb37ced57db554b4224db
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a514280de1a0b5b73fc03dcfbf759d02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fb92efa9eab14dca75e10e3c3b9cedd2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ea2a1e9739c36284de9848fde9da39d |
| publicationDate |
1994-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5360931-A |
| titleOfInvention |
Continuous multi-stage process for the preparation of (cyclo) aliphatic diisocyanates |
| abstract |
A continuous multistage process for the preparation of (cyclo)aliphatic diisocyanates comprising a) condensing urea with a (cyclo)aliphatic diamine in the presence of an alcohol solvent to make a (cyclo)alkylenebisurea in a distillation reactor; b) reacting the crude (cyclo)alkylenebisurea with alcohol in a pressurized distillation reactor to make (cyclo)biscarbamate; c) removing the ammonia formed in the pressurized distillation reactor; d) cleaving the (cyclo)biscarbamate in the presence of a catalyst in a combined cleavage and rectifying column to make crude (cyclo)alkylene diisocyanate; e) reacting a diverted portion of the cleavage products with the alcohol to form a recycling mixture; f) and distilling the crude (cyclo)alkylene diisocyanate formed in step d. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5731458-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7339074-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8884047-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102471244-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102471244-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005250960-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0990644-A1
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5728317-A
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005267310-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9145357-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9145358-B2
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7371891-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103588680-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9249090-B2
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012313031-A1
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004150123-A1
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2275406-A4
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7420080-B2
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2528423-C2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8658819-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114432969-A
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011133121-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7329776-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004056760-A1 |
| priorityDate |
1992-05-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |