| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-22 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-146 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-50 |
| filingDate |
2003-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2010-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2010-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-100984144-B1 |
| titleOfInvention |
Process for manufacturing high purity methacrylic acid |
| abstract |
The present invention provides a method for producing high purity glacial methacrylic acid ("HPMAA") of substantially pure, specifically 99% or more pure and 0.05% or less water content. The improved process includes providing a crude MAA stream in a continuous distillation step and purifying the crude methacrylic acid stream. n n Methacrylic acid, glacial methacrylic acid, continuous distillation, distillation apparatus |
| priorityDate |
2002-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |