Abstract: A polyolefin construction comprising at least one polyolefin (PO) layer, a barrier layer for the polyolefin layer and a compatibiliser for the PO and the barrier layer, which compatibiliser enables the PO and barrier layer to adhere together, whereby the barrier layer comprises the compatibiliser; a blended barrier layer polymer and the barrier layer formed therefrom and a process for producing the polyolefin construction.

Abstract: Use of polypropylene having long chain branching to broaden the processing window in the injection stretch blow moulding of at least one propylene polymer.

Abstract: A multimodal polymer composition comprising: (A) a polypropylene homopolymer or a propylene random copolymer comprising propylene and up to 5 weight % of comonomer selected from ethylene and/or C4-10 alpha olefin; and (B) a random copolymer of propylene and comonomer selected from ethylene and/or C4-10 alpha olefin; wherein the total comonomer content of the polymer composition is at least 0.5 wt % and the melt flow rate of the polymer blend is at least 6 g/10 min when measured according to ISO 1133 at 230° C. and a load of 2.16 kg.

Abstract: The invention provides a syringe barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax. The invention further provides a syringe having a barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax and a polypropylene composition suitable for such moulding.

Abstract: The present invention relates to an antioxidant composition comprising (a) 0.01-0.5% by weight of sterically hindered phenolic compound, (b) 0.01-0.5% by weight of phosphorous compound, and (c) 0.01-1% by weight of sulphurcontaining compound. Said antioxidant composition reduces degradation of plastic materials during processing and end-use and thus, increases the long term thermal stability of those plastic materials. Moreover, this invention relates to methods for producing a final polymeric article with an increased long term thermal stability and stabilization against ageing by radical decomposition processes and polymeric intermediate materials as well as polymeric articles comprising the inventive antioxidant composition.

Abstract: HDPE compositions comprising a bimodal polymer and a nucleating agent, for producing moulded articles with increased E-modulus and high ESCR, and the use of such compositions in the production of moulded articles.

Abstract: The invention provides a syringe barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax. The invention further provides a syringe having a barrel formed by injection moulding of a polypropylene composition, characterised in that said polypropylene composition contains a polyethylene wax and a polypropylene composition suitable for such moulding.

Abstract: HDPE compositions comprising a bimodal polymer and a nucleating agent, for producing moulded articles with increased E-modulus and high ESCR, and the use of such compositions in the production of moulded articles.

Abstract: A polyolefin polymer powder for use in rotational moulding requires the presence of stabilizers, including UV-stabilizers, to prevent degradation during processing and use. Described is a new process for preparing rotomoulding polymer particles comprising (i) obtaining a plurality of polyolefin polymer particles having a mean particle size of 1 to 2000 &mgr;m; (ii) heating a mixture of: A) at least one phenolic antioxidant; B) at least one organic phosphite or phosphonite antioxidant; C) at least one UV-stabiliser selected from Chimassorb 2020, Cyasorb UV 3346, Chimassorb 944, Cyasorb 4042 or Cyasorb 4611; D) a diluent; and optionally E) a metal stearate; to a temperature of between 20 and 200 ° C.; (iii) depositing the mixture onto said polyolefin polymer particles; and optionally (iv) blending a metal stearate to the resulting polyolefin polymer particles if component E was not present in said mixture.