Abstract: Injection stretch blow molding process for preparing polyolefin containers, comprising the following steps: 1) preparing a preform by injection molding a polyolefin composition comprising a polymer (A) selected from ethylene polymers, propylene polymers and mixtures thereof, and a heat absorber (B); 2) supplying heat to reheat the preform prepared in step 1) and stretch blow molding said preform; wherein the heat absorber (B) is selected from phosphates, condensed phosphates, phosphites, and mixed hydroxide/phosphate oxanion compounds of Copper (Cu), Calcium (Ca), Tin (Sn) and/or Iron (Fe).

Abstract: Injection stretch blow molding process for preparing polyolefin containers, comprising the following steps: 1) preparing a preform by injection molding a polyolefin composition comprising a polymer (A) selected from ethylene polymers, propylene polymers and mixtures thereof, and a heat absorber (B); 2) supplying heat to reheat the preform prepared in step 1) and stretch blow molding said preform; wherein the heat absorber (B) is selected from phosphates, condensed phosphates, phosphites, and mixed hydroxide/phosphate oxanion compounds of Copper (Cu), Calcium (Ca), Tin (Sn) and/or Iron (Fe).

Abstract: Injection stretch blow-molding process for preparing polymer containers, comprising the following steps: 1) covering, partially or totally, the outside surface of the core rod of a preform mold with a polymer film; 2) injecting a polymer layer over the covered core rod, thus obtaining a preform comprising an inside polymer film layer and an outside polymer layer; 3) stretch blow-molding the said perform, thus obtaining a container comprising an inside polymer film layer and an outside polymer layer.

Abstract: Injection stretch blow-molding process for the preparation of polyethylene containers wherein use is made, as the polyethylene material, of an ethylene (co)polymer having density equal to or greater than 0.945 g/cm3 and F/E ratio values equal to or greater than 60.