Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_910b2c2c248c55c9f6c36007b447ad2c http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 |
classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-106 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 |
filingDate |
1996-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e50eb013c6e49981da76f48ec6ddc5c1 |
publicationDate |
1997-05-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
WO-9719043-A1 |
titleOfInvention |
Process for the preparation of alkylene glycols |
abstract |
A process is disclosed for preparing an alkylene glycol by reacting an alkylene oxide with water in the presence of a catalyst comprising a polymeric organosiloxane ammonium salt having a silica-like skeleton and comprising units of general formula (I), wherein R1 to R4, Y and x are as specified in claim 1. Preferred are the catalysts wherein the anion Y is selected from the group of carboxylates having from 1-20 carbon atoms, hydrogen carbonate, hydrogen sulphite, hydrogen phosphate and metalate. These catalysts exhibit an enchanced selectivity stability. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9933772-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6646083-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6137014-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9923053-A1 |
priorityDate |
1995-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |