| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_696ca0ae93d5cf5a686273601361781f |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-60 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-48 |
| filingDate |
1995-02-20^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1998-02-11^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8187fcac4283b0888cbaacedbe14eaa7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_986a163f2f3aab75bbe21f3824e4b757
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_674e0dbde7134ca0b283b920fd025811 |
| publicationDate |
1998-02-11^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-326443-B |
| titleOfInvention |
Process for purifying methacrylate |
| abstract |
A process for purifying a methacrylate which comprises the steps of treating the methacrylate colored by coloring substances each having a carbonyl group with (a) oximating agent capable of oximating the coloring substances each having the carbonyl group or (b) a combination of the oximating agent and an aqueous alkali solution, and then separating and collecting the methacrylate from the thus treated solution, wherein (a) the oximating agent is a salt of hydroxylamine and a mineral acid of hydrochloric acid or sulfuric acid. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-I796324-B |
| priorityDate |
1994-02-25^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |