Title:
ポリエステル組成物、ポリエステルフィルムおよび磁気記録媒体
Document Type and Number:
Japanese Patent JP7194328
Kind Code:
B2
Abstract:
To provide a polyester film excellent in dimensional stability, especially dimensional stability to environmental change such as temperature or humidity, and small in film elongation rate at 110°C more easily.SOLUTION: There are provided a polyester composition in which a dicarboxylic acid component is an aromatic dicarboxylic acid component having 6 or more carbon atoms, a glycol component contains an alkylene glycol component having 2 to 4 carbon atoms and aliphatic dimer diol having 31 to 50 carbon atoms, and content of the dimer diol component is in a range of 0.3 to 5.0 mol% based on molar number of the aromatic dicarboxylic acid component, and a polyester film using the polyester composition in at least one layer.SELECTED DRAWING: None
Inventors:
Shu Hirose
Makoto Iida
Tatsuya Ogawa
Mitsuho Tojo
Makoto Iida
Tatsuya Ogawa
Mitsuho Tojo
Application Number:
JP2018192592A
Publication Date:
December 22, 2022
Filing Date:
October 11, 2018
Export Citation:
Assignee:
Toyobo Co., Ltd.
International Classes:
C08L67/02; C08G63/54; C08J5/18; C08L71/00; C08L79/08; G11B5/62
Domestic Patent References:
| JP10077335A | ||||
| JP2004107587A | ||||
| JP2010024409A | ||||
| JP2009221277A | ||||
| JP2013173870A |
Foreign References:
| WO2002077062A1 |
Attorney, Agent or Firm:
Patent Business Corporation Unias International Patent Office
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