Importance

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Abstract

It is provided that a polyester resin and a polyester resin composition that allow reduction of harmful outgas and can form a coating film having excellent characteristics such as curability, retort resistance, and processability. A polyester resin composition comprising polyester resin (A), wherein the polyester resin composition satisfies the following requirements (i) to (iii), (i) the polyester resin (A) has an acid value of 100 eq/ton or more, (ii) the polyester resin composition substantially contains no curing agent, and (iii) the polyester resin (A) includes, as a polyol component constituting the polyester resin (A), a diol (a) having two primary hydroxy groups and having no alicyclic structure, and, furthermore, one or both of a diol (b) having an alicyclic structure, and a diol (c) having one primary hydroxy group and one secondary hydroxy group and having no alicyclic structure.

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First Claim