| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2f8cfa5aee4410611b5c562275c9f8e3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-444
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-441
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-34 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0016
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0011
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-08 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-44 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00 |
| filingDate |
2000-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd70f9c7833a77b258103754fb70ee77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59b35dc65a01faca7be238176db293d8 |
| publicationDate |
2005-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1127608-A4 |
| titleOfInvention |
HOLLOW FIBER MEMBRANE FROM CELLULOSE DERIVATIVES |
| abstract |
A hollow fiber membrane made of a cellulose derivative, wherein the thickness of the membrane is 50 to 500 νm, at least one of the inside and outside surfaces thereof is a minute membrane surface having an average pore diameter of 0.001 to 0.05 νm, an internal portion of the membrane comprises a three dimensional porous network structure having vacant pores of an average pore diameter of 0.05 to 2 νm and cellulose acetate propionate or cellulose acetate butyrate takes account for 70 wt % or more of the material of the membrane. The cellulose derivative hollow fiber membrane has high mechanical strength and is less susceptible to biodegradation. |
| priorityDate |
1999-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |