| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_97f8939cf76e68731c5704c708ac7a89 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C47-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-54 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C47-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-75
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-75 |
| filingDate |
2018-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d91da7b1306c5b35298ee4a96b682eee
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd6dfc1edbfd5a9cd864606b9dc1e1c3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c4e0860529c3713a53ecdccdc112158a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_37f9eb1351d04bb861e6d254283ed0e6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82c661d2e6c2ba7773bfbdb01ad9f9d6 |
| publicationDate |
2021-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2021032386-A1 |
| titleOfInvention |
Process for producing optical molding materials |
| abstract |
A process is useful for producing optical molding materials on the basis of methyl methacrylate (MMA), wherein this MMA has been produced by an optimized method and the molding materials feature in particular a very low yellowness index. This MMA has been produced by direct oxidative esterification of methacrolein. In particular, an optimized workup of the reactor output from the oxidative esterification of methacrolein is useful for removing particularly discoloring byproducts. This process moreover has the advantage that fewer demands than described in related art are placed on plant apparatus configuration. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11560350-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11661395-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11731931-B2 |
| priorityDate |
2017-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |