http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0199607-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ad2cd796f8c4dcb425ddcc68707d3444 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-56 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G69-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D01F6-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D69-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61M1-16 |
| filingDate | 1987-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2333442dfc7867151007030187a63019 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e16aaf158bdff401359ee1a600b90c2 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5abde90cdea2f89d56faef2d772ceffd |
| publicationDate | 1989-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0199607-A |
| titleOfInvention | Filter membrane |
| abstract | PURPOSE:To obtain the title filter membrane having excellent filtration performance and resistance to chlorine and alkalis by using the piperazine-based co-polyamide consisting of a structural unit shown by a specified formula. CONSTITUTION:A diamine compd. such as 4,4'-diaminodiphenylsulfone and a piperazine-based compd. such as piperazine are mixed in the molar ratio 95/5-35/65, an acid up-taking agent such as pyridine is added to the mixture,and the admixture is dissolved in a solvent such as N-methylpyrolidone. An aromatic polycarboxylic acid component such as isophthalic dichloride is added to the soln. to cause polymerization, and the piperazine-based co-polyamide consisting of the building units expressed by formulas 1 and 2 and wherein the ratio of the unit 1 to the unit 2 is controlled to 95/5-35/65 is obtained. The co-polyamide is dissolved in a solvent along with a nonsolvent (pore forming agent) such as polyethylene glycol to form a spinning soln. The soln. is discharged from a spinneret having an annular slit into water, and a hollow yarn membrane is obtained. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4565762-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100861881-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2015131884-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002282351-A |
| priorityDate | 1987-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.