| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cebc9740ef706cde29e885504f274ffa |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-74 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-08 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-08 |
| filingDate |
2001-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2003-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d182cc5870f329f579cb43022612c960
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e459d2b35db4c52a7a406b16299da7f2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_908ce3f54fac67e2d2799f2dbea4a7c8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d25a91cc862c35ed5d3f2a9988157ba6 |
| publicationDate |
2003-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6642394-B2 |
| titleOfInvention |
Process for producing (meth)acrylic anhydride and process for producing (meth)acrylic ester |
| abstract |
(Meth)acrylic acid is reacted with a fatty acid anhydride and the resultant reaction mixture is neutralized and washed with an aqueous alkaline solution having a pH of 7.5 to 13.5. Thus, high-purity (meth)acrylic anhydride can be industrially advantageously produced while avoiding polymerization. This (meth)acrylic anhydride is reacted with a secondary or tertiary alcohol in the presence of a basic compound which in 25° C. water has an acidity (pKa) of 11 or lower. Thus, a high-purity (meth)acrylic ester can be produced in high yield. |
| priorityDate |
2000-09-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |