Abstract: A method of preparing a single layer hollow packaging by injection blow moulding, using a metallocene-produced polyethylene and produced by injection blow moulding, characterized in that said hollow packaging has an external and internal gloss of at least 30 and said metallocene-produced polyethylene has a density of from 0.910 up to 0.966 g/cm3 or up to homopolymer densities and a melt index MI2 of from 0.5 to 2.5 g/10 min. An article produced by such method is also disclosed.

Abstract: Bidentate catalyst systems and the methods or forming such are described herein. The catalyst systems generally are compounds having the general formula: where R, R1, R2 and R3 are optional and independently selected from hydrogen, C1 to C20 alkyl groups or C6 to C20 aryl groups, A? and A? are independently selected from coordination groups, M is a Group 4 or 5 transition metal, X is selected from halogens, alkyl groups, aromatic groups or combinations thereof and n is less than 4.

Abstract: A polymer blend and a method of making the same are provided. The polymer blend includes an ethylene-propylene (C2–C3) random copolymer and a modifier selected from the group consisting of a metallocene-catalyzed polyethylene-based copolymer, a metallocene-catalyzed polyethylene-based terpolymer, and a syndiotactic polypropylene homopolymer. The polymer blend may also include an organic peroxide for visbreaking the polymer blend. An end use article is made from the foregoing polymer blend. The end use article may be, for example, a film, an injection molded article, a compression molded article, a thermoformed article, and a fiber. The end use article is desirably a film having an Elmendorf tear strength of at least about 300 g/ply in the machine and transverse directions.