http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009126080-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d93502a23a72b56472bc75854cfe7c60 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L11-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02F1-1335 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-06 |
| filingDate | 2007-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56ab68b4f0cbe7f5c0b8aa3b199aa239 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_76b0b048983e489599be37e803d63d3e |
| publicationDate | 2009-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2009126080-A |
| titleOfInvention | Method for producing stretched film |
| abstract | To provide a method for producing a stretched film having a slow axis accuracy higher than that of a conventional film and having good flatness. SOLUTION: A thermoplastic resin film is passed through a preheating step with a preheating roll, a heating step with a float type heating device, and a heat removal step with a heat removal roll in this order, and the difference in peripheral speed between the preheating roll and the heat removal roll. Is a method for producing a stretched film by longitudinally uniaxially stretching in the flow direction, wherein the float heating device is divided into three or more sections that are continuous in the film flow direction. The temperature satisfies a specific relationship, and further, the temperature in the kth section from the upstream of the float heating apparatus and the temperature in the k + 1th section satisfy the specific relationship, and the film is between the heating step and the heat removal step. The step of applying a tension of 10 to 500 N / m in the width direction of the film, the film temperature at that time and the temperature in the most downstream section of the heating device of the float system, To satisfy a constant relationship. [Selection figure] None |
| priorityDate | 2007-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.