improved for the treatment of articles of polyethylene in the course of its production by treatment of the melt conditions.

摘要

A process for the stabilization of polyethylene, characterized by the use of a combination COMB of compounds, the combination COMB comprising a component A, a component B and a component D; the component A comprising a compound of formula (I). which it is obtainable by reacting PCl 3 with a compound of formula (Ia); component B being selected from the group consisting of compounds of formulas (II), (IV) and (IX); being selected component D from the group consisting of compounds of formulas (XXV), (XXVI), (XXVII) (XXVIII), (XXIX), (XXXI) and (LIII) and the combination of the compounds of formulas (XXV) and (XXVIII); and optionally comprise at least one component selected from the group consisting of component C, component E and component F; wherein component C an antioxidant agent based on a primary sterically hindered phenol, component E-absorbing agent UV, and the component F being an anti-acid. ** (See formula) **