| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31859
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2367-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S428-908 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-73929
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-193
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-60
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03C1-7954 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G03C1-795
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-193
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J5-18
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-60 |
| filingDate |
1998-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e8f26732a8e58463c58ffea4e0d2a57f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_59c5935ac5bee048d3d78de76a2ea08c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2dccd441842478bbb5bdd6ce42f0c621
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a21010272f96f4bb4e5b96cbd6e30f6d |
| publicationDate |
1998-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2259536-A1 |
| titleOfInvention |
Biaxially oriented polyethylene naphthalate copolymer film |
| abstract |
A biaxially oriented film which is made substantially of (1) a polyethylene naphthalate copolymer comprising an ethylene naphthalate unit in an amount of 92 to 99.5 mol% based on all recurring units and at least one copolymer component selected from the group consisting of (a) a glycol having a fluorene skeleton in the molecule, (b) p-hydroxymethylbenzoic acid, (c) p-hydroxyethoxybenzoic acid and (d) p-hydroxyethoxyethoxybenzoic acid in an amount of 0.5 to 8 mold based on the total of all dicarboxylic acid components, and which has (2) Young's moduli in both longitudinal and transverse directions of 500 kg/mm2 or more and (3) a delamination resistance of 10 % or less in terms of fold line whitening ratio. Since this biaxially oriented film of the present invention is excellent in delamination resistance, curling resistance, mechanical strength, color and transparency, it is of great value as a base film for a photo film. |
| priorityDate |
1997-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |