http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S57177303-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_13acffa0e4ce30d3be128ccd86b384f6 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D71-64 |
| filingDate | 1982-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f0598a4ddcfb88d5a6c424fe6490b37 |
| publicationDate | 1982-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S57177303-A |
| titleOfInvention | Selective permeable film |
| abstract | PURPOSE: To increase a water permeating speed while excellent characteristics of a polyimide film is maintained by introducing a specific amount of a carboxyl group into the polymer chain of aliphatic polyimide comprising a specific structural unit as a side chain. n CONSTITUTION: An imide unit shown by formulaIand a carboxylated imide unit shown by formula II are dissolved in N-methyl-2-pyrrolidone, dimethylformamide, dimethylacetamide or a mixed solvent thereof along with 10W30pts. of swelling agent per 100pts. of polyimide to form a uniform dope with viscosity of 50W300poise. This dope is coated on a plate and a pipe having a smooth surface such as glass or the like or a base material of a fibrous sheet or a pipe and, after a part of the solvent is evaporated, the coated material is immersed in a coagulating solvent to coagulate polyimide. Thus obtained film has heat resistance, solvent resistance, chemical resistance, anti-bacterial property as well as a high water permeating speed. n COPYRIGHT: (C)1982,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4705540-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108939949-A |
| priorityDate | 1982-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 26.