| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d9a31243981e8241cc00b1f1094bc23
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f34119b232d292c72e632b62008eca90 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0018
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0036
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0492
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0054
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-005 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C229-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C231-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C235-34 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D11-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C231-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C235-34 |
| filingDate |
2018-05-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2019-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd8642d0a60fca1e9c2eba8ec4082ef7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_69570183e1d0824993e4ca9e3d476e3e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c2502fc427a0420e98e3547eaed792e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_351a2b284e0797c7246182ea1c3d6db7 |
| publicationDate |
2019-10-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10442757-B2 |
| titleOfInvention |
Synthesis of tyrosine derived diphenol monomers |
| abstract |
A method for preparing diphenol compounds includes adding a hydroxyphenyl carboxylic acid, a tyrosine ethyl ester, hydroxybenzotriazole hydrate and a solvent and stirring to produce a first solution. EDCI HCl is added to the first solution to produce a first mixture. Ethyl acetate is added to the first mixture to produce a second mixture. The second mixture is added to sodium chloride to produce a third mixture having layer separation. An aqueous layer is removed from the third mixture. The third mixture is extracted with reagents after the aqueous layer has been removed from the third mixture to produce a fourth mixture. Magnesium sulfate is added to the fourth mixture to produce a fifth mixture. The fifth mixture is filtered to produce filtrate. The filtrate is concentrated. Crystallization of the concentrated filtrate is induced. Methylene chloride is added to the crystallized filtrate to produce a solid product. |
| priorityDate |
2017-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |