PROCESS FOR PREPARING A VINYLIDENE CHLORIDE POLYMER COMPOSITION AND FILMS AND PACKAGINGS OBTAINED FROM SAID COMPOSITION

摘要

Process for preparing a composition of a vinylidene chloride polymer and at least one -caprolactone polymer according to which : a) during the preparation of the vinylidene chloride polymer by polymerization of the vinylidene chloride and at least one comonomer that is copolymerizable with it, at least one -caprolactone polymer, preformed in a medium other than that of the vinylidene chloride polymerization, is added; and b) optionally, in addition, at least one -caprolactone polymer is added to the vinylidene chloride polymer isolated at the end of step a). Process for preparing articles, in particular films, which includes the use of a composition prepared by the aforementioned process. Single-layer or multilayer film comprising said composition and packaging or bag formed from this film.