http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3497164-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_103689de83223684861385d7f611b25e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4854 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-2865 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-2825 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-285 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-227 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09J163-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-69 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-69 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L63-00 |
| filingDate | 2017-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5c6a44e68fc77c65001cd60530398dec http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_21ca614f39b02e079b1c60e12dbe65d8 |
| publicationDate | 2019-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-3497164-A1 |
| titleOfInvention | Blocked polyurethane impact modifiers for improving the impact strength of low-temperature curing single-component epoxy adhesives |
| abstract | The invention relates to an impact modifier which is an isocyanate-terminated polymer, the isocyanate groups of which are partially or completely blocked by reaction with a blocking agent, obtainable by A) reacting a) two or more polyols comprising a1) polytetramethylene ether glycol and a2) at least one hydroxy-terminated polybutadiene, wherein the total proportion of polytetramethylene ether glycol and hydroxy-terminated polybutadiene is at least 95 wt.-%, relative to the total weight of polyols, and b) at least one acyclic aliphatic or cycloaliphatic polyisocyanate in the presence of c) at least one catalyst while forming an isocyanate-terminated polymer, and B) reacting the isocyanate-terminated polymer obtained in step A) with d) at least one blocking agent selected from the group consisting of phenols, 2-benzoxazolinones and pyrazoles in the presence of e) at least one organic bismuth catalyst while forming the partially or completely blocked isocyanate-terminated polymer. The use of the impact modifier in epoxy resin adhesives results in good impact strength even at low curing temperatures. |
| priorityDate | 2016-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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