| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29K67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29L7-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K3-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B29C55-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08K7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-733
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73 |
| filingDate |
1989-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c799566a2aeefbe679af42fe9cb6dbcc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de52eae1954741b45813e9e04d4be264
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39abfe9d1747ef102b57711400360a51
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_45f38a16ec3cb0cd339148e17116ebe9 |
| publicationDate |
1990-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H02182730-A |
| titleOfInvention |
Polyester film |
| abstract |
PURPOSE:To obtain a biaxially oriented polyester film, containing homogeneously dispersed specific calcium carbonate-based platy particles and excellent in abrasion resistance and slipperiness. CONSTITUTION:A biaxially oriented polyester film, containing calcium carbonate-based platy particles having <=1mum, preferably <=0.8mum average particle diameter and >=2.5, preferably >=3.5 average flakiness ratio (plate diameter/ plate thickness) in an amount satisfying the formula 0.0005<=WXD<=0.30 [W is the content (wt.%) of the calcium carbonate-based platy particles; D is the average particle diameter (mum) of the calcium carbonate-based platy particles] and having preferably the value of the WXD within the range of 0.001-0.22. The surface roughness (Ra) of the polyester film is 0.005-0.05mum. The above- mentioned polyester film is a base film for magnetic recording media. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H04110327-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010201837-A |
| priorityDate |
1989-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |