| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b55c349b43c3ecba4977fd52cc8f8c67 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2325-24 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C44-569
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D65-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D67-0027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D71-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C44-5627
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D69-12 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K27-18 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D39-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C67-20 |
| filingDate |
2008-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3042aea9938877db939162290f275dba
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_87233055ebf80b9e9c742ff403db29fa |
| publicationDate |
2010-05-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2010110914-A |
| titleOfInvention |
Polytetrafluoroethylene porous membrane, method for producing the same, and waterproof air-permeable filter |
| abstract |
Provided is a production method capable of producing a PTFE porous membrane having a laminated structure in which separation between porous layers hardly occurs. A first green sheet made of PTFE having a standard specific gravity of 2.16 or more and a second green sheet made of PTFE having a standard specific gravity of less than 2.16 are laminated, and pressure is applied to the laminate. Obtain a crimped product. The pressure-bonded product is stretched in a predetermined direction at a temperature lower than the melting point of PTFE, and further stretched in the predetermined direction at a temperature higher than the melting point of PTFE or heated to a temperature higher than the melting point of PTFE. Thereafter, the pressure-bonded product stretched in a predetermined direction is stretched in the width direction orthogonal to the predetermined direction at a temperature lower than the melting point of PTFE. [Selection] Figure 1 |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013253213-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013005431-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2018176748-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103649190-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9713795-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014195991-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2730607-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013168203-A1 |
| priorityDate |
2008-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |