| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33dafb5bbc2ec47ebcb7becbbe60f704 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2033-04 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D11-00644
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-1335
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-06 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K33-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-1335
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29D11-00 |
| filingDate |
2017-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ff7e9587875b973b31be834cfd0a8f1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5e2cc5dfa86509fc110f629039d2e67
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7675aeb8891da15d9d101257dd162e59 |
| publicationDate |
2018-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
KR-20180111922-A |
| titleOfInvention |
Polarizing film and manufacturing method thereof |
| abstract |
A method for producing a polarizing film, wherein at least a swelling step, a dyeing step, a first crosslinking stretching step and a second crosslinking stretching step are carried out in this order on a polyvinyl alcohol film; The average degree of polymerization of the polyvinyl alcohol contained in the polyvinyl alcohol film is 2500 to 3500; In the first crosslinking and stretching step, monoaxially stretched so that the draw ratio in the process is 1.1 to 1.3 times and the total draw ratio is 2.5 to 3.5 times in an aqueous solution containing boric acid at 1 to 5 mass% and ; In the second cross-linking and stretching step, monoaxially stretched so that the draw ratio in the process is 1.8 to 3.0 times and the total draw ratio is 6 to 8 in an aqueous solution containing boric acid at 1 to 5 mass% do. Thus, a polarizing film having excellent polarization performance and low shrinkage stress can be produced. |
| priorityDate |
2016-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |