| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b55c349b43c3ecba4977fd52cc8f8c67 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2323-30 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-125
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-56 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 |
| filingDate |
2005-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aadd3c3e93c576fb57a839b4856f5329
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c54bde3fc9ccb3b15604279c6fd57374
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f90e7322b61571aabf57b93a8b13647 |
| publicationDate |
2006-05-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20060051998-A |
| titleOfInvention |
Reverse osmosis membrane and its manufacturing method |
| abstract |
Provided are reverse osmosis membranes having alkali resistance and capable of maintaining high boron blocking performance even in a pH range, and a method of preparing the same. Reverse osmosis membranes have an initial performance with a rate of change R f (%) obtained within the following equation: within ± 10%:n n n R f (%) = ((F 1 -F 0 ) / F 0 ) × 100n n n In the above formula, F 0 is the permeation flow rate [m 3 / (m 2 / day)] at the start of the operation when the sodium hydroxide aqueous solution adjusted to pH 12.0 as raw water is continuously operated at 25 ° C. under a pressure of 0.75 MPa, and F 0 1 is the permeation flux [m 3 / (m 2 / day)] after one week of operation. |
| priorityDate |
2004-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |