| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C209-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C263-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G73-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7664 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-50 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G12-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-76 |
| filingDate |
2002-08-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89938ac6bfabc342159023ff41c5ec3e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_222f6612ccbd343e17b87b3e09ad4027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fbeeed9ef0e3bbedb0d887527b5db02d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_195d7919118890bcf878b12034fc80d6 |
| publicationDate |
2003-03-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
HU-0202841-A2 |
| titleOfInvention |
Process for the preparation of diphenylmethane series of reduced color polyisocinates |
| abstract |
The present invention relates to a process for the preparation of diphenylmethane series polyamines and to a process for the preparation of diphenylmethane series reduced color polyisocyanates by reacting the corresponding diphenylmethane series polyamines with phosgene. Reduced color polyisocyanates are prepared by a) reacting aniline and formaldehyde to polyamine in the presence of an acid catalyst, b) neutralizing the reaction mixture at a temperature above 110 ° C or heating the reaction mixture to a suitable temperature above 110 ° C after neutralization with a base, and c) heating the polyamine. are shaped. SHE |
| priorityDate |
2001-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |