Abstract: A functional resin composition comprising a biomass-derived component; an aromatic dicarboxylic acid; an alcohol component; a chain extender; and a multifunctional compound. The biomass-derived component is biomass-derived succinic acid or mixture with fossil-derived aliphatic dicarboxylic acid. The multifunctional compound is obtained by reaction of 4,4-bis(4-hydroxyphenyl)valeric acid and polyethylene glycol. The functional resin composition has excellent processability, moldability, tearing strength, tensile strength and excellent resistance to hydrolysis.

Abstract: The present invention relates to a functional resin composition comprising a biomass-derived component, and more particularly to a functional resin composition comprising: a biomass-derived component; an aromatic dicarboxylic acid; an alcohol component; a chain extender; and a multifunctional compound. The biomass-derived component is biomass-derived succinic acid alone or a mixture of biomass-derived succinic acid alone and fossil-derived aliphatic dicarboxylic acid. The functional resin composition comprising these components has excellent processability, moldability, tearing strength and tensile strength, and does not easily change over time due to its excellent hydrolysis resistance.