http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H1057783-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b55c349b43c3ecba4977fd52cc8f8c67 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G75-23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-12 |
| filingDate | 1997-05-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a32b6f1f158eaa7aa5b9d71f48382d6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a8b87bc995ff470de3deee11a171a46c |
| publicationDate | 1998-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H1057783-A |
| titleOfInvention | Reverse osmosis composite membrane |
| abstract | (57) Abstract: A reverse osmosis composite membrane including at least a porous support membrane layer and a separation active layer, wherein a water-insoluble organic polymer having an anionic hydrophilic group on the surface of the separation active layer. By forming the coalesced layer, it has high anionicity, high salt rejection, high water permeability and chlorine resistance, and enables practical desalination at relatively low pressure. SOLUTION: On a reverse osmosis membrane such as an aromatic polyamide membrane, a logarithmic viscosity is 0.84 cm 3 / g, and an ion exchange capacity is 1. Dissolve 23 milliequivalents / g of the sulfonated polysulfone copolymer in ethylene glycol monomethyl ether. A 25 wt% solution is applied by a dipping method, Dry at 3 ° C. for 3 minutes to form a thin layer. The separation active layer 12 exists on the porous polysulfone support membrane 11, and the anionic sulfonated polysulfone copolymer layer 13 is formed. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104209024-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103785308-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105688694-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9211509-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115463552-A |
| priorityDate | 1996-05-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.