http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2471831-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ee1c19da359446fb5c4f0458a57b783d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L75-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-2663 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4866 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48 |
| filingDate | 2010-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5fd290ccbeebfe90409c9512df856378 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6087385bb4badf9aa80b9c9bf0f0bff6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_466131a10aca2079bceb58b333bc08f9 |
| publicationDate | 2012-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2471831-A1 |
| titleOfInvention | Method for manufacturing an isocyanate-terminated prepolymer, prepolymer obtained thereby, and polyurethane resin |
| abstract | The present invention relates to a method for manufacturing an isocyanate group-terminated prepolymer, comprising the following steps (a) to (d): (a) a step of ring-opening polymerizing an alkyleneoxide-containing cyclic compound by using an initiator in the presence of a composite metal cyanide complex catalyst in such an amount that the amount of a metal derived from the composite metal cyanide complex catalyst becomes from 1 to 30 ppm by mass based on the final product polyol, thereby obtaining a polyol composition containing the catalyst; (b) a step of, without removal of the composite metal cyanide complex catalyst from the polyol composition obtained in the step (a), adding water in an amount of 0.05 to 20% by mass based on the polyol composition and performing a heat treatment in a closed system; (c) a step of subjecting the hydrous polyol composition after the step (b) to a dehydration treatment until the water content in the composition becomes from 5 to 500 ppm by mass; and (d) a step of adding a polyisocyanate compound to the polyol composition after the step (c) and subjecting to a reaction with the polyol in the polyol composition. |
| priorityDate | 2009-09-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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