http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6576720-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e363f2a3ef55146fe7824fb144d95c47 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F8-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F8-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-06 |
| filingDate | 2002-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2003-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1d7181f9e6751791d3aa39ca767a6f0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aeacd8521c72a9f7ad5595d7bc1072d4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_671cd20ee0261bb2ac8f90bb73ab522b |
| publicationDate | 2003-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6576720-B2 |
| titleOfInvention | Preparation of polyvinyl alcohol |
| abstract | A process for preparing polyvinyl alcohol by means of catalytic transesterification of an alcoholic polyvinyl ester solution and subsequent workup by means of isolation of the polyvinyl alcohol formed includes adding, prior to the transesterification of the polyvinyl ester solution, the acetic ester of the alcohol used as solvent, in an amount of from 5 to 70% by weight, based on the overall amount of alcoholic solvent and its acetic ester, and recycling the liquid phase obtained after isolation of the polyvinyl alcohol product to a further polyvinyl ester transesterification. |
| priorityDate | 2001-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.