| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a polyether-ester-amide having excellent appearance and color. SOLUTION: The method for producing the polyether-ester-amide uses a diol compound having≤1.40 mg-KOH/g acid value as a component (b) when producing the polyether-ester-amide by polymerizing (a) a≥6C aminocarboxylic acid, a≥6C lactam or a total≥6C salt synthesized from a diamine and a dicarboxylic acid, (b) one or more kinds of the diol compounds selected from formulas (I) to (IV) (wherein, R<SP>1</SP>and R<SP>2</SP>are each at least one of an ethylene oxide group and a propylene oxide group; Y is a covalent bond, a 1-6C alkylene group or the like; and X<SP>1</SP>to X<SP>12</SP>are each hydrogen, a 1-6C alkyl group, a halogen group, a sulfonic acid group or a metal salt thereof), and (c) a 4-20C dicarboxylic acid. COPYRIGHT: (C)2007,JPO&INPIT
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