| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d50a5d08fff80f620aa6f328cd9bc85e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C235-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G69-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-6856
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-12 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-685
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C235-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-12 |
| filingDate |
1996-03-29^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2004-02-24^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3d3557e117e6e8c348222561d4d55e9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec9ec408c13eb13b5c0120b74c21ad4c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_94474ab8bb41287ace0fc0c8cd4754a4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82b89bc7f28da7f9133873129b289231 |
| publicationDate |
2004-02-24^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2215281-C |
| titleOfInvention |
Improved synthesis of tyrosine-derived diphenol monomers |
| abstract |
A method for preparing diphenol compounds, which method includes the steps of coupling a hydroxyphenyl carboxylic acid with an L-tyrosine ester in a water-miscible organic reaction solvent containing a carbodiimide capable of forming a water-soluble urea by-product, thereby forming a diphenol reaction product; and combining the reaction mixture with an amount of water effective to precipitate the diphenol as a water-immiscible organic phase, so that a water-immiscible organic phase is formed containing the diphenol reaction product. New diphenol monomers and polymers polymerized therefrom are also disclosed. |
| priorityDate |
1995-03-31^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |