| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-7837
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-8064
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-222
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C273-1809 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C275-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C273-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-78 |
| filingDate |
2003-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_acb85b3c15adab7b73a500c94c9758b2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_94a78df75084ebc61b9cb7a03519143b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a173627c0a456be98cef95d64c1e33cc |
| publicationDate |
2003-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2430650-A1 |
| titleOfInvention |
Continuous process for the production of mdi allophanates |
| abstract |
This invention relates to a continuous process for the production of allophanate modified diphenylmethane diisocyanates having an NCO group content of 19 to 32% and an urethane content of less than 2 area % by GPC analysis. The process comprises (1) continuously reacting (a) diphenylmethane diisocyanate and (b) an alcohol, in the presence of (c) at least 25 ppm of an allophante catalyst, based on the combined weight of the diphenylmethane diisocyanate and the alcohol, in a reactor in an oxygen-free environment; (2) continuously treating the product exiting the reactor with a catalyst stopper at the reaction temperature; and (3) cooling the resultant product. |
| priorityDate |
2002-06-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |