http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100492329-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K2201-003 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08K9-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18 |
| filingDate | 1998-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2005-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2005-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100492329-B1 |
| titleOfInvention | Polyester film for magnetic recording media |
| abstract | The present invention provides a specific amount of specific monodisperse spherical silica sol particles and specific auxiliary particles in polyester to form a myriad of small projections on the surface of the film during film molding, thereby using a specific particle having excellent dispersibility. The present invention relates to a biaxially oriented polyester film suitable for high speed dubbing, particularly for magnetic tape having excellent scratch and wear resistance by forming numerous small protrusions evenly. The technical composition is that the surface of the polyester having an average particle diameter of 5 to 200 nm A mono-disperse spherical silica sol particle coated with metal oxide was combined with 0.001 to 1.0% by weight, and 0.001 to 1.0% by weight of auxiliary particles having an average particle diameter of 0.3 μm to 3.0 μm to obtain a polyester composition. Silica as a polyester film for magnetic recording media obtained by stretching in the biaxial direction, heat setting, and relaxation heat treatment Metal oxide for coating the particles of aluminum and the coating ratio (Al 2 O 3 / SiO 2 ) is characterized in that 0.001 to 30 and composed of at least one member selected from the group consisting of synthetic calcium carbonate, kaolin, spherical silica as secondary particles A polyester film for a magnetic recording medium, characterized in that. |
| priorityDate | 1998-12-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.