| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1d29f7ac2c7f9be9f7dae1a83bbb5c92 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2603-74 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-80 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-453
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-80 |
| filingDate |
2001-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2004-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7f4058e44164104d7c295dfd6b0662c7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66ae6c092b9443d76d4fe6fd65096d34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_205043dee9fcb9d815128b50d401e36e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d6a479628058ffe8bb4de8fcd3e74efa
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6d079c4d4381fa8e4c53312cd5e0fcc3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ed10901376ff6c99e169f8adb4031a5 |
| publicationDate |
2004-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6781016-B2 |
| titleOfInvention |
Process for the preparation of alicyclic ketones and an alkyl-substituted alicyclic esters |
| abstract |
A high-purity alicyclic ketone which is a raw material for an alkyl-substituted alicyclic ester such as an alkyl adamantyl ester compound which is useful as a resist raw material can be obtained by a simple operation such as extraction without a special purification step such as distillation or recrystallization. In this process, when an alicyclic hydrocarbon is oxidized with concentrated sulfuric acid or fuming sulfuric acid, the reaction solution after oxidation is poured into water and a solid is extracted with an organic solvent, the concentration of sulfuric acid in the water layer at the time of extraction is adjusted to 60 to 90 wt % to carry out extraction so as to obtain an alicyclic ketone. |
| priorityDate |
2000-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |