http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0931105-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4854 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-24 |
| filingDate | 1997-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2000-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8d054868463985010af7955127344a5e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_66b8b2aafd6f1f4700f3a5317c82b6bb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_48cb647642e9ce80ee1368fe6fa4c3be http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9f31f45799273fd1367761c0a6801cd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56dbaf45400e4688805e38d614844ac5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d9e93db4d1efbf8018fdfe4893b85359 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ccdb9338a76c78d7acf16cc2c12223f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_44ed9ebf38da87d4be9eea8f2b980656 |
| publicationDate | 2000-05-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0931105-B1 |
| titleOfInvention | Process for preparing polytetrahydrofuran and derivatives thereof |
| abstract | PCT No. PCT/EP97/05204 Sec. 371 Date Apr. 1, 1999 Sec. 102(e) Date Apr. 1, 1999 PCT Filed Sep. 23, 1997 PCT Pub. No. WO98/15589 PCT Pub. Date Apr. 16, 1998Polytetrahydrofuran, copolymers of tetrahydrofuran and 2-butyne-1,4-diol, diesters of these polymers with C2-C20-monocarboxylic acids or monoesters of these polymers with C1-C10-monocarboxylic acids are prepared by polymerization of tetrahydrofuran in the presence of one of the telogens water, 1,4-butanediol, 2-butyne-1,4-diol, polytetrahydrofuran having a molecular weight of from 200 to 700 Dalton, a C1-C10-monocarboxylic acid or an anhydride of a C2-C20-monocarboxylic acid or a mixture of these telogens over a heterogeneous supported catalyst which comprises a catalytically active amount of an oxygen-containing molybdenum and/or tungsten compound on an oxidic support material and which has been calcined at from 5OO DEG C. to 1OOO DEG C. after application of the precursor compounds of the oxygen-containing molybdenum and/or tungsten compounds onto the support material precursor, wherein the catalyst is activated by treatment with a reducing agent before it is used as a polymerization catalyst. |
| priorityDate | 1996-10-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.