http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108139533-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29K2029-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-3033 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29D7-01 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-13363 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-023 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B29C55-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-133528 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02F1-1335 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-1335 |
| filingDate | 2016-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-06-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108139533-B |
| titleOfInvention | Manufacturing method of stretched film and manufacturing method of polarizing film |
| abstract | The present invention provides a method for producing a stretched film made of a polyvinyl alcohol-based resin, which can achieve a high stretch ratio in TD (film width direction), and which is excellent in axial orientation in TD, and a stretched film using the stretched film. A method for producing a polarizing film exhibiting good optical properties. The present invention provides a method for producing a stretched film, the production method including a stretching process for obtaining a stretched film by stretching a polyvinyl alcohol-based resin film, the stretching process sequentially including: a first stretching treatment process; In the comparison at the same TD stretching ratio, the stretching in TD and the shrinking in MD were simultaneously performed so that the MD shrinkage ratio was larger than the MD shrinkage ratio when the polyvinyl alcohol-based resin film was stretched laterally at the free end. ; and the second stretching treatment step, in which stretching in TD and shrinking in MD are simultaneously performed so as to reduce the MD shrinkage ratio by 0.17 or more, and a method for producing a polarizing film using the obtained stretched film is provided. |
| priorityDate | 2015-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 72.