| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fe25bc79dbfd72b55f374d71e9ed7f5b |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-025 |
| 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/B01D69-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-56 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 |
| filingDate |
2011-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45508f392ddaa2a83d5f2ab39647ba35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c5d10777d85f29ec79283aef1a4bd7d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_296a5dbd6f42271362b9d63e0661e115
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c6b04de1ae207f762c808d123639f27d |
| publicationDate |
2012-08-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20120095235-A |
| titleOfInvention |
Reverse osmosis composite membrane with excellent fouling resistance and its manufacturing method |
| abstract |
The present invention relates to a polyamide reverse osmosis composite membrane having excellent stain resistance and a method for producing the same. Polyamide reverse osmosis composite membrane having excellent fouling resistance of the present invention is (a) a microporous support layer; (b) a polyamide layer on the microporous support layer; And (c) a hydrophilic coating layer on the polyamide layer, wherein the hydrophilic coating layer is formed by a covalent bond between the residual acid halogen compound of the polyamide layer and the amide amine compound containing a hydrophilic group. Accordingly, the polyamide reverse osmosis composite membrane of the present invention having the hydrophilic coating layer is maintained in the initial salt removal rate and flow rate characteristics even during long-term operation under the contaminated conditions, so as to continuously change the operating pressure or to remove contaminants therefrom. The washing step of the composite membrane can be omitted. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017200313-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101453794-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10688449-B2 |
| priorityDate |
2011-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |