| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ff1907425c1bb23b93eb9e58a240e378
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3bbc758e4be165674f5716255dd3868d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a24ee9e7fa14d663051236f9ef091ce4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f8877d26e7e712d48efb03a75bd073f3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bc6e18a688439624f40269fa9d11a89c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_180fc416b976a19a5e833475bce45d63 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W10-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-24 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-1273
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D01F6-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D63-023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D63-024
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-087 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-00 |
| filingDate |
2007-04-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d73e15aa0dd21152dc423fd01b35eac6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fea6b1542a54c9bc231137c4900afb0a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_10f9f4758f55023ac39a5d9b890a0feb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9eb5939d75f7a70175bc8ccb74c5c20c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_22690e0d8aa70266dad49041163a4b68 |
| publicationDate |
2007-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2007123004-A1 |
| titleOfInvention |
Porous hollow-fiber membrane of vinylidene fluoride resin and process for producing the same |
| abstract |
A porous hollow-fiber membrane which comprises a vinylidene fluoride resin having a weight-average molecular weight of 200,000-600,000 and has the following properties (A) and (B): (A) when one end of the membrane is coated with an epoxy resin having a hardness of 98, the flex life as measured under a load of 48 g is 100 or more; and (B) the ratio of the value (F) obtained by converting the water permeability as measured at a test length (L) of 200 mm under the conditions of a differential pressure of 100 kPa and a water temperature of 25°C to a value corresponding to a porosity (v) of 70% (L=200 mm; v=70%) (m/day) to the square (Pm2) of an average pore diameter (Pm) (µm ) as measured by the half-dry method, i.e., F (L=200 mm, v=70%)/Pm2, is 2,000 (m/day•µm2) or higher. The porous hollow-fiber membrane not only has excellent flex resistance (A) but has a high water permeability (B) despite the satisfactory microparticle (bacterium) rejection efficiency due to micropores. This porous vinylidene fluoride resin hollow-fiber membrane is especially suitable for use in water filtration by the membrane-separation activated sludge process (MBR method). The porous hollow-fiber membrane is produced by a process for porous hollow-fiber membrane production in which various production conditions are regulated so as to result in an increased outer diameter and an increased wall thickness. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013507485-A |
| priorityDate |
2006-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |