| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d9a31243981e8241cc00b1f1094bc23 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0054
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D11-0492
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0018
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D9-0036 |
| classificationCPCInventive |
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/C07C231-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C229-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C235-34 |
| 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> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_787bdfdd3f81f834c15dd520b9935f56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f049a6d7b80ec5a16321ed0d8a10552
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5e61eaf0454a9c0b625863ff461f34c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17c628910332457f24ab6661070692f0 |
| publicationDate |
2018-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2018354892-A1 |
| 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. EDCl 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 |