| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af17c491906d7d677939f7f2c2f7d157 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2323-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L23-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K7-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L1-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2-162
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-406
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-491
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D99-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-417
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-429
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-403 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K7-02 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-417
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L1-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29D99-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-491
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-406
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-403
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-429 |
| filingDate |
2014-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b14b2f037e959f7f2caaae691239b8e3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75ce1b62355260c2267b7e9688de96b9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a35ee04aa3ce5552d20f43dd1162341b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_53e47e92cc87bc922f92522edebd1bb1 |
| publicationDate |
2020-11-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10840491-B2 |
| titleOfInvention |
Process for producing cellulose-nanofiber-filled microporous stretched polyolefin film, microporous cellulose-nanofiber composite film, and separator for non-aqueous secondary battery |
| abstract |
A method for producing a cellulose nanofiber-containing polyolefin microporous stretched film according to the invention includes: a first step of obtaining a cellulose powder dispersion mixture by uniformly dispersing a cellulose which has a powder particle shape and whose hydroxyl groups have been subjected to a lipophilizing treatment using a dibasic acid anhydride, in a plasticizer; a second step of melt-kneading the cellulose powder dispersion mixture and a polyolefin to obtain a polyolefin resin composition; a third step of extrusion-molding the polyolefin resin composition to obtain an extrudate; a fourth step of stretching the extrudate with a film stretcher to obtain a film; a fifth step of extracting out the plasticizer from the film; and a sixth step of thermally fixing the film from which the plasticizer has been extracted out for inhibiting contraction, while stretching the film at a temperature not higher than a melting point of the polyolefin, in which a twin-screw kneading extruder is used only once throughout the second and third steps. |
| priorityDate |
2013-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |