| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4557c7f3f45c86c09d9c139f62894aba
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a564398aa8189633f788e7614fda4876 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C263-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C267-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C265-14 |
| filingDate |
2012-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d11ebe2e6554d71c32488e773b990b61
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19bcf4e5986b427408605d6ca934b171
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d2e0f0ed25a08cd9a6aa43a6b8eeab55
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10dbf835f6aac50992aa4609d792a7be
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b2b1ca9f11e90141b16a264f9d9ac99
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1bee42a9924a18bd707c4bad88dd680a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_99cff87e03ad622b635580318dbe2eca |
| publicationDate |
2014-08-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-102718683-B |
| titleOfInvention |
Method for preparing low-chromatic number isocyanate and isocyanate prepared by same |
| abstract |
The invention relates to a method for preparing low-chromatic number isocyanate containing a carbodiimide and/or uretonimine group capable of being stored in a liquid state and the isocyanate containing the carbodiimide and/or uretonimine group capable of being stored in the liquid state prepared by the method. The method comprises the following steps of: a) reacting an isocyanate group of the raw material isocyanate under the action of a cyclopentene phosphine catalyst to obtain isocyanate reaction liquid partially catalyzed by carbodiimide; and b) adding an anhydride terminating agent into the reaction liquid obtained from the step a) and terminate carbodiimide reaction. The liquid isocyanate prepared by the method has the advantages of low chromatic number and good storage stability. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3699169-A4 |
| priorityDate |
2012-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |