HIGHLY FLOWABLE POLYAMIDE RESIN

摘要

A highly flowable polyamide resin for which the viscosity at a shear rate of 1 s-1 at 150°C is not more than 10 Pa∙s and the viscosity at a shear rate of 1 s-1 at 125°C is at least 100 Pa∙s, the resin having a low viscosity such that the resin can penetrate easily into a wire harness element wire at thermal contraction temperatures while attaining a high viscosity such that resin flow does not occur at temperatures at which the wire harness is used. In particular, a highly flowable polyamide resin wherein: an acid component (a) having a polymerized fatty acid, which comprises a C16-48 dimer acid and in which the content of said dimer acid is at least 30 mass%, as the main component, an acid component (b), which has a dibasic acid selected from a group consisting of C6-22 dicarboxylic acids and ester derivatives thereof as the main component, and an amine component (c), which has a diamine as the main component, are connected by amides bonds; and the mass ratio of the acid component (a) to the acid component (b) is within a prescribed range.