| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6842ac50cf3ca2352074cb3a75079618 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-307 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61J9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-16 |
| filingDate |
2012-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_310dba36ffd8a11e9b8f0d0f0daac32b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_faa539ad28e6acdd886fda6f8806a093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b8c4bf29a4c2462409f9369ff7aabfe9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6fe7353aeeb5065e5cccbb37a7ac33f5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9a49023ee7751891c37b467c9fc316e0 |
| publicationDate |
2014-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20140082983-A |
| titleOfInvention |
Process for producing bisphenol A with reduced sulfur content, polycarbonate made from the bisphenol A, and containers formed from the polycarbonate |
| abstract |
In one embodiment, a method for preparing a bisphenol A product comprises reacting a phenol with acetone in the presence of a cocatalyst containing sulfur to obtain a reaction mixture comprising bisphenol A, phenol, and the cocatalyst; Reacting the phenol with the acetone and then cooling to form a crystal stream comprising crystals of bisphenol A and phenol; Separating the crystals from the crystal stream; Melting the crystals to form a molten stream of bisphenol A, phenol, and sulfur; Contacting the molten stream with a base to reduce the sulfur concentration in the molten stream and form a reduced sulfur stream; And removing the phenol from the reduced sulfur stream to form a bisphenol A product. Also disclosed herein is a container comprising a polycarbonate formed from bisphenol A having a sulfur concentration of from 0.5 to 15 ppm based on the weight of bisphenol A. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20190060430-A |
| priorityDate |
2011-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |