Predicate |
Object |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2325-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-49 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-4205 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-004 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-0006 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0217 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-0237 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J39-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J39-04 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J39-04 |
filingDate |
2017-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
grantDate |
2019-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationDate |
2019-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
KR-101948296-B1 |
titleOfInvention |
Method for producing a bisphenol |
abstract |
In one embodiment, a method for preparing a bisphenol compound, comprising reacting a phenolic compound with a reactant comprising one or both of an aldehyde and a ketone in the presence of a catalyst system and methanol to produce the bisphenol compound, The methanol being present in an amount of 250 to 5,000 ppm based on the total weight of the reactants; The catalyst system comprises an ion exchange resin comprising a plurality of sulfonic acid sites; And from 5 to 35 mole percent of the adducted promoter molecules based on the total number of moles of sulfonic acid points in the catalyst system; And a method for preparing a bisphenol compound wherein the adherent promoter molecule comprises at least two thiol groups per attached co-catalyst molecule. |
priorityDate |
2016-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |