http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S6277923-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K67-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-733 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73 |
| filingDate | 1985-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_157f985a0bf556f52104c763d11d2026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_563ab6658633a0570f35986d31ae22b4 |
| publicationDate | 1987-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S6277923-A |
| titleOfInvention | Polyester film for magnetic recording |
| abstract | PURPOSE:To obtain a biaxially oriented polyester film which is superior in electromagnetic conversion characteristics and running durability, by making a relation between the number of protrusions and heights of the protrusions of the film surface into a specific range by containing a water-containing silicate mineral of specific aluminum or specific calcium carbonate along with the that within polyester. CONSTITUTION:A 0.1-0.6wt% water-containing silicate mineral of aluminum whose mean particle diameter is 0.2-2.0mum or 0.01-0.4wt% calcium carbonate whose mean particle diameter is 0.2-1.5mum along with the former water-containing silicate mineral are dispersed and contained within polyester. The titled film possesses a protrusion distribution wherein a distribution curve displaying a relation between the number of protrusion (Y: pieces/mm<2>) obtained in a sphere of more than the number of protrusions 19 pieces/mm<2> and a height of the protrusion (X: mum) does not cross with a straight line displayed by log10Y=-9.8X+4.4 within a range of log10Y>1.3. The film is so constituted further that the maximum value of the protrusion distribution falls within a range of log10Y>=-18X+3.7 and surface roughness is less than 0.025mum. With this constitution, a thing which is of use as a reproduction tape for a long-playing tererecording, whose surface possesses the predetermined protrusion distribution and does not have existence of large protrusion is obtained. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5288784-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11186701-B2 |
| priorityDate | 1985-10-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.