Method for manufacturing an injection-molded article, in particular a bottle preform

Abstract

A method for manufacturing an injection-molded article, preferably a preform (11) of a bottle (1), in particular an aerosol bottle, made of a crystallizable polymer material, this article having at least one crystallized part (3), in particular a neck, and preferably a tubular body (14) closed at one end (16), the method comprising the following steps: a) producing an injection-molded article, preferably an injection-molded preform (11), by injecting the crystallizable polymer into a mold, b) crystallizing said part (3) of the injection-molded article, in particular of the injection-molded preform, by heating and then cooling the latter, wherein, in said method, between step a) and step b), the injection-molded article, in particular the injection-molded preform (11), is held for a sufficient duration under storage conditions such that it undergoes moisture uptake of at least 0.4% by weight.

Dependencies are inferred from the claim text.