| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0093 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 |
| filingDate |
1989-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aef3117f37ccc0bfaabfa4edb1bdc5df
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61ca49affa1c1dc8936e4b77b259456f |
| publicationDate |
1990-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4938872-A |
| titleOfInvention |
Treatment for reverse osmosis membranes |
| abstract |
A process for increasing the salt passage of polyamide reverse osmosis membranes and the resulting membrane is disclosed. The process involves treating the membrane with a dilute aqueous solution of an alkali metal permanganate followed by a stabilization treatment with a dilute aqueous solution of sodium bisulfite or hydrogen peroxide. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008142041-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0604711-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100460012-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008251447-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008025259-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5262054-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010176052-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010044902-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008277334-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8851297-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009050558-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010173083-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5112491-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8518310-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7867339-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008257818-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100460011-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008053893-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008083670-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5344569-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008203013-A1 |
| priorityDate |
1989-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |