http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2499005-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_592427f1dd3e71e6ed29f29ce20d506e |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L75-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K3-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D175-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K13-02 |
| filingDate | 2012-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e20ecdd9b36915d38b988860186f53a9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c74725ad858a8f01a71189753cc14b6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0639c7c5a1adc6d8a335cf875d2bda5 |
| publicationDate | 2013-11-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2499005-C1 |
| titleOfInvention | Method of producing isocyanate prepolymers |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to a method of producing isocyanate prepolymers containing 10-21 wt % terminal NCO groups, intended for use as a polymer base of polyurethane, polyurea and polyurea-urethane sprayed anticorrosion coatings and sealing compounds. The method is based on treating oligooxypropylene triol with molecular weight of 4500-6000 units at temperature 30-85°C with diphenyl methane polyisocyanate in the presence of intramolecular urethane-formation reaction inhibitor additives, the inhibitor used being distilled tall oil, taken in amount of 0.5-1.2 wt % of the weight of reacting components, with molar ratio of the oligooxypropylene triol to diphenyl methane polyisocyanate which provides content of NCO groups of 10-21 wt % in the finished prepolymer. n EFFECT: synthesis of urethane prepolymers with high content of NCO groups, which retain their viscosity properties at a level which meets process requirements for a long period of time. n 1 dwg, 4 tbl, 6 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2803091-C1 |
| priorityDate | 2012-11-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.