http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1585772-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_79cbb9f87b30f4e71aae70684a99180e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2301-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2201-054 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2203-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J9-28 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate | 2004-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1c6b1d58159f97dfbe43a66727d512c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c258f07cc985392fcf0f37f2599e6841 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d58e0e2811b94b14bd304cb3345da7b3 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_646aac01c06d1681eab170743556b933 |
| publicationDate | 2005-10-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-1585772-A1 |
| titleOfInvention | Method for the production of a porous cellulose body |
| abstract | The invention relates to a method for the production of a porous cellulose body, consisting of the following steps: a cellulose solution is produced in a tertiary amino oxide, particularly N-methylmorpholine-N-oxide; the cellulose used has an average polymerization degree of 150 - 2000 and the solution has a 0.1 - 5 wt. % concentration of cellulose; a body is produced from said cellulose solution; the body is precipitated in a precipating agent, thereby enabling a precipitated cellulose body to be obtained; the precipitating agent is an aqueous medium or a cellulose-precipitating non-aqueous medium which cannot be mixed with water, said non-aqueous medium being able to dissolve the tertiary amino oxide and being able to be mixed with a supercritical solvent. The inventive method is characterised in that if the aqueous medium is used as a precipitating agent, the tertiary amino oxide contained in the precipitated cellulose body is washed out with the aqueous medium; the aqueous medium is replaced by a liquid medium which can be mixed with a supercritical solvent; the cellulose body which is wetted with the replacement medium is treated with the supercritical solvent, enabling a porous cellulose body to be obtained; or if a non-aqueous medium is used as a precipitating medium, the tertiary amino oxide contained in the cellulose body is washed out with the non-aqueous medium; the cellulose body which is wetted with the non-aqueous medium is treated with the supercritical solvent in order to obtain a porous cellulose body. |
| priorityDate | 2003-01-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.