Patent ID: 8674054
Filing Date: 2014-03-18
Classification: C08G,C08K,G02B

Abstract:
1. A polyester resin comprising: a diol unit, which contains a unit derived from ethylene glycol and a unit derived from a diol represented by the following formula (I), and a dicarboxylic acid unit, which contains a unit derived from an aromatic dicarboxylic acid in an amount of 50 mol % or more; wherein the entire diol unit contains the unit derived from ethylene glycol in an amount of 40 to 99 mol %, and the unit derived from a diol represented by formula (I) in an amount of 1 to 60 mol %: wherein A represents an aromatic ring selected from the group consisting of, naphthalene, anthracene, phenanthrene and pyrene; R 1 represents an alkyl group having 1 to 12 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms or a halogen atom; n represents an integer of 0 to 4; and when plural R 1 s are present, R 1 s may be the same as or different from each other.