| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d669af06cb2abbcd6823699582a97002 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D309-10 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D309-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H3-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D493-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B35-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C-
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07H1-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-20 |
| filingDate |
1998-11-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2002-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b01e33ce349f79217b6f10fb00a1d38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9e7488da9d1afe813c3052fefa4797c3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f6a8162e2651a3671ce6d22924bdd59b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_465ce1c0338087de3be2227b3193a122
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b8815638a3dcd0fe88ad201f0340ab09 |
| publicationDate |
2002-08-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
TW-499426-B |
| titleOfInvention |
Process for the production of five-membered or six-membered cyclic ethers, and anhydropolyol compositions obtained thereby |
| abstract |
Five-membered or six-membered cyclic ethers, in particular anhydropolyols, can be obtained by cyclodehydration of polyols having at least 4 C atoms and at least 2 hydroxyl groups in the presence of water and an acidic catalyst. According to the invention the cyclodehydration is promoted and the formation of polymers is avoided if the acid-catalysed cyclodehydration is carried out in the presence of an acid-stable hydrogenating catalyst in a hydrogen atmosphere. Anhydrohexitols can be obtained both from hexitols and from sucrose. |
| priorityDate |
1997-11-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |