| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4f6ee64e420ffdad3e2fb360c93302a0 |
| 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/C08F2-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C47-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-75
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C69-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-12
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
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F2-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-39 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F20-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L33-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-75
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-39 |
| filingDate |
2018-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c43e209c3022b567e73e8afc3ab63937
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7d6f7d07521abc6d705a118258927c4e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d8548892669ec7a2e9976764a6c32e7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e5b36d509676a30e079380b094cfcc5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4add079f596ba84662b8a948f05de9d7 |
| publicationDate |
2019-07-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-201925157-A |
| titleOfInvention |
Method of making optical molding materials |
| abstract |
The present invention relates to a method for manufacturing an optical molding material based on methyl methacrylate, wherein the MMA has been manufactured by an optimization method and the molding material is characterized by an extremely low yellowing index. This MMA utilized according to the present invention has been manufactured by direct oxidative esterification of methacrolein. In particular, the invention relates to an optimized post-treatment of the output of the oxidative esterification of methacrolein, with which the discoloration by-products are removed in particular. This method also has the advantage that fewer requirements are placed on the plant equipment configuration than those described in the prior art. |
| priorityDate |
2017-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |