http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02175736-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_724f95499981b0a3be6d9d72d9e296c0 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D06N3-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D06N3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate | 1988-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bdbc444a2fb5aee1a4be172a8c126063 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_435cd11c359773d39877754e484a7dbb |
| publicationDate | 1990-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02175736-A |
| titleOfInvention | Production of porous film |
| abstract | PURPOSE: To obtain a porous film having a fine and uniform cellular structure and improved properties by dissolving a resin system based on a polyurethane in an organic solvent, heating the solution, adding a specified coagulating system to the heated solution, applying the resultant solution to a substrate and cooling it. n CONSTITUTION: A resin system (a) based on a polyurethane and optionally containing a PVC or polyacrylate resin is dissolved in an organic solvent (b) (e.g. DMF) and heated near the b.p. of component (b) to obtain a high- temperature solution. A coagulating system (c) which is a nonsolvent and/or a poor solvent for component (a) (e.g. water) is slowly added to this high- temperature solution to obtain a solution in a high-temperature region and coagulates near room temperature or in a low-temperature region below that. This solution is applied in the form of a film at high temperatures to a substrate (d) such as a knit or woven fabric, a nonwoven fabric, paper or a film and coagulated by cooling by, for example, immersion in a cooling medium, and the whole is immersed in an extractant (e) to remove the remaining component (b) and dried. n COPYRIGHT: (C)1990,JPO&Japio |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014051634-A |
| priorityDate | 1988-04-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 17.