An extruded air cooled blown film having a) a total thickness of 5 to 500 m, b) a mono-layer structure or 2 to 9 coextruded layers, c) at least one layer L containing a polymer selected from the group consisting of polypropylene homopolymers, polypropylene random copolymers, hetero-phasic polypropylene block copolymers, or any mixtures thereof, said polymer having a melt flow rate, according to ASTM D-1238, of 0.1 to 10 dg/min at 230 C. and 2.16 kg, said layer L further containing 0.001 to 2%, relative to the weight of the polymer, of a particular nucleating agent, and optionally d) a Modulus according to EN ISO 527 enhanced by at least 10% versus a reference film without the nucleating agent.

A decorative magnetic cover is provided. The cover includes a plurality of octagonal and triangular openings, allowing the cover to securely attach to a rounded item without kinking or otherwise unsightly attachment. The cover includes a magnetic sheet having a magnetic face and nonmagnetic face, and a decorative element attached to the nonmagnetic face. The cover is manufactured by scoring the nonmagnetic face of the magnetic sheet and applying the decorative element to the nonmagnetic face. The resulting magnetic element is the cut to form the octagonal and triangular openings.

Broadband reflectors include a UV-reflective multilayer optical film and a VIS/IR-reflective layer. In various embodiments, the VIS/IR reflective layer may be a reflective metal layer or a multilayer optical film. Concentrated solar power systems and methods of harnessing solar energy using the broadband reflectors and optionally comprising a celestial tracking mechanism are also disclosed.

An extruded air cooled blown film having a) a total thickness of 5 to 500 m, b) a mono-layer structure or 2 to 9 coextruded layers, c) at least one layer L containing a polymer selected from the group consisting of polypropylene homopolymers, polypropylene random copolymers, hetero-phasic polypropylene block copolymers, or any mixtures thereof, said polymer having a melt flow rate, according to ASTM D-1238, of 0.1 to 10 dg/min at 230 C. and 2.16 kg, said layer L further containing 0.001 to 2%, relative to the weight of the polymer, of a particular nucleating agent, and optionally d) a Modulus according to EN ISO 527 enhanced by at least 10% versus a reference film without the nucleating agent.

Provided are hydrophilic substrates provided with a hydrophilic polymer layer having controlled surface uniformity and irregularities, and methods for preparing the hydrophilic substrates. Included are hydrophilic substrates including a substrate having a surface containing at least one group represented by N(R.sup.1).sub.2 or N(R.sup.2).sub.3.sup.+ wherein each R.sup.1 or R.sup.2 is the same or different and represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group optionally containing a hetero atom; and a hydrophilic polymer layer provided on the surface of the substrate.

According to an embodiment of the present invention, a conductive membrane transfer sheet including a first release sheet and a conductive membrane is provided. The first release sheet includes a liquid-permeable sheet. The conductive membrane includes a conductive fiber supported on a first major surface of the first release sheet. The first release sheet and the conductive membrane contain a first liquid.