http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2012133074-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_24aca9ded2638ea793d05360dde7a4a0 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K23-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L7-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-14 |
| filingDate | 2010-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e52a7ea1ea09c99697df911925f981f4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75f847d16f4b4720baea468760f6fe9f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_08a432ec290b8b957b2882b307d332d4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a2bc5d882a728d32f93d6c7390c548ba |
| publicationDate | 2012-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2012133074-A |
| titleOfInvention | Method for producing retardation film |
| abstract | A method for producing a polypropylene resin retardation film having high axial accuracy and a uniform retardation value is provided. A method for producing a retardation film comprising sequentially performing longitudinal stretching and transverse stretching in this order on a film composed of a polypropylene resin, wherein the transverse stretching is performed using the polypropylene resin. A preheating step of retaining the film at an atmospheric temperature higher than the melting point for 2.5 minutes or more, and the preheated film is taken for 3 minutes to 4 minutes at an atmospheric temperature lower than the melting point of the polypropylene resin. There is provided a method for producing a retardation film having a stretching step of stretching in a direction. The stretching step in the transverse stretching is preferably performed at a stretching ratio of 3.4 times or more. The preheating step is performed when passing through the preheating zone 31, and the stretching step is performed when passing through the stretching zone 32. [Selection] Figure 2 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019199589-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020246322-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11342116-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2019026958-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-6466015-B1 |
| priorityDate | 2010-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 77.