http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2582454-T3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e7adbac0cfee713b5c67b9c0f26b5a5 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-4866 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61K9-1075 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D319-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D319-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-08 |
| filingDate | 2010-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_535f1a6914ae7cf9b0cbdb0e786f8ae7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_22549fc82a136212fbcb57bc991d01ab |
| publicationDate | 2016-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-2582454-T3 |
| titleOfInvention | Process for preparing cyclic esters comprising unsaturated functional groups and polyesters prepared therefrom |
| abstract | A procedure for preparing a cyclic ester having the formula: ** Formula ** where each x is equal and is an integer ranging from 0 to 12; wherein each R1a and each R1b, when present, is independently hydrogen, hydroxy, amino, thio, halogen, substituted or unsubstituted C1-C6 alkyl, substituted or unsubstituted C1-C6 alkoxy, substituted or unsubstituted C1-C6 alkylthio , substituted or unsubstituted C1-C6 alkylamino or substituted or unsubstituted C1-C6 hydroxyalkyl; provided that each R1a is the same and each R1b is the same; wherein R2 is hydrogen, hydroxy, amino, thio, halogen, substituted or unsubstituted C1-C6 alkyl, substituted or unsubstituted C1-C6 alkoxy, substituted or unsubstituted C1-C6 alkylthio, substituted or unsubstituted C1-C6 alkylamino or substituted or unsubstituted C1-C6 hydroxyalkyl; and where ----- is an optional link; the process comprising heating a liquid reaction medium comprising an oligomeric α-hydroxy acid having the formula: ** Formula ** or a salt thereof, where n is an integer from 2 to 30, and where x, R1a , R1b, R2 and ----- are the same as defined above, at a temperature of 150 ° C to 300 ° C to form the cyclic ester, while removing from the liquid reaction medium a composition comprising the cyclic ester. |
| 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
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