http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20010073272-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8be09ab5797d1efd0dbf7c48d7cbb9ab |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P70-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C2071-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-491 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-403 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-2231 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C48-0018 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-417 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M2-14 |
| filingDate | 2000-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b3b838ffd8e4257595578789fa8a5b7f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c4cb07787a46a5156cef74ddd8c4ee4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_070e60cfcaa3ce85b9e20f9b32364d43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_501c9cc8a5cb9b3fbfed8ff87c38baf4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_409627c49628297ccc16cd22c323ba94 |
| publicationDate | 2001-08-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20010073272-A |
| titleOfInvention | Method for preparing micro-porous membrane |
| abstract | The present invention relates to a method for producing a microporous membrane, and more particularly to a method for producing a microporous membrane prepared by blending polyolefin and polypropylene and a battery using the same as a separator. The invention provides for this purpose a) iii) polyethylene; And ii) blending polypropylene at a weight ratio of 10:90 to 90:10, followed by melt extrusion and winding at a winding ratio of 20 to 200 to produce an original film. b) annealing the original film of step a) while stretching the polyethylene film at a melting temperature of polyethylene at a low temperature of 35 ° C. to a polyethylene melting temperature of 10% or less with respect to the length of the original film; c) stretching the annealed original film of step b) at a temperature in the range of -20 to 60 ° C. at a temperature of 20 to 80% with respect to the length of the original film; And d) stretching the low-temperature stretched film of step c) to 50-200% high temperature with respect to the length of the original film in the range of 80 ° C. to polyethylene melting temperature. And it provides a battery using the microporous membrane produced by this manufacturing method as a separator.n n n The polyethylene-polypropylene blend microporous membrane prepared by the production method of the present invention has a uniform distribution of micropores, exhibits air permeability in a range of 100 sec / 100 cc to 1,000 sec / 100 cc suitable for a large capacity battery, and is a separator of the battery. When applied to the pore closure temperature is low, and the pore closure is excellent in shape retention capacity, the battery using it as a separator is safer. |
| priorityDate | 2000-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID409063172 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID7916 |
Total number of triples: 26.