| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_68496d12a251010a470395787518f996 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K23-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L7-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C47-88
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J9-28 |
| filingDate |
1997-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8fd951de2b448fec14fe12f3b20b3221
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2c48d38a1e9e2ab9d36d6001e8b3fc8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8bbda0ef36352f63629e68da1b52dd78
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_82e882e2ba3fdb1aa8f0e571577ec663
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32383c253efd53688db111382bf37b77 |
| publicationDate |
1998-11-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H10298340-A |
| titleOfInvention |
Method for producing microporous polyolefin membrane |
| abstract |
PROBLEM TO BE SOLVED: To provide a microporous polyolefin membrane having a relatively large pore size, a sharp pore size distribution, and excellent permeability, which is used for applications such as water treatment and microfiltration membranes. SOLUTION: An ultrahigh molecular weight polyolefin (A) having a weight average molecular weight of 5 × 10 5 or more and a weight average molecular weight of 5 × 10 5 are provided. A solution comprising 5 to 40% by weight of a polyolefin composition comprising less than the polyolefin (B) and a solvent of 95 to 60% by weight is prepared, and the solution is extruded from a die, cooled to form a film, and then the remaining solvent is removed. A method for producing a microporous polyolefin membrane by drying and heat-setting the resulting microporous polyolefin membrane at a temperature of 80 ° C. or higher and a melting point or lower. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002228429-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8242222-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012106208-A |
| priorityDate |
1997-04-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |