http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013211003-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f9b2b61026eda9fdd7667f29a72f4695 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33ee2ee06caedd4488c6d033ffe8c8a1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f79a478c1a0f7b0ea29ef883aeaa3da4 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G83-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G81-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-26 |
| filingDate | 2010-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_05c220c14132006824b00e2a21fc6bca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7fa4f3f4f2496f9206fe06218be1f851 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cb868cf4b513af846289a571adfec085 |
| publicationDate | 2013-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-2013211003-A1 |
| titleOfInvention | Polymer, process and composition |
| abstract | There is described a process for producing a gel free hyperbranched polyamide polymer having primary amino groups (useful as a crosslinker). The process comprises the step of reacting at least one diamine and at least one unsaturated diester in a molar ratio of diamine to diester greater than 1 but less than 3 (preferably 2.1 to 2.9); to form the polyamide in a two stage reaction Michael addition and then amidation. The diamine in kept in excess with at least 5% of water by total weight of the diamine and diester, a reaction temperature less than the boiling point of the diamine; and is held under reduced pressure (30 mbar to 1 atms). Gelation does not occur even after substantially all ethylenic (—C═C—) double bonds; and >95% ester [—C(O)═O] groups have reacted. This violates the Flory rules which predict a gel would form based on the number of functional groups present and their degree of conversion. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114957665-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114561005-A |
| priorityDate | 2009-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 288.