Copolyamide resin, and composition, molded article, film and monofilament containing same

Abstract

Provided are a copolyamide resin having excellent transparency due to low enthalpy change ΔH upon melting and low crystallinity and produced using a biomass-derived raw material; a composition containing the copolyamide resin; and a molded article, such as a film or a monofilament, containing the copolyamide resin. The present invention can contribute to achieving, for example, Goal 12 of Sustainable Development Goals (SDGs). A copolyamide resin containing a structural unit A derived from a reaction product of equimolar amounts of pentamethylenediamine and adipic acid; and a structural unit B derived from a reaction product of equimolar amounts of pentamethylenediamine and sebacic acid, wherein the mass ratio of the structural unit A/the structural unit B is from 85/15 to 15/85.

Dependencies are inferred from the claim text.