Abstract: The invention is directed to stretched polyolefin materials having an E-modulus of at least 17 GPa, preferably at least 20 GPa and a strength of at least 400 MPa, comprising a polyolefin and a nano-material, such as a nucleating agent, which material is obtainable by a process comprising a stretching step wherein the material is stretched at a stretch ratio of at least 16. The materials of the invention can be produced by a process comprising the steps of: providing a compound of a polyolefin material and a nano-material, e.g. a nucleating agent, wherein the nano-material is dispersed preferably on a molecular scale in the polyolefin material, extruding this compound, followed by a stretching step wherein the material is stretched to a total stretch ratio of at least 16.

Abstract: The present invention relates to a method for preparing a composite product, comprising bonding a polyolefinic article together with a woven or non-woven cloth, wherein at least the surface of the cloth that is bonded with the article is provided with a backing-layer comprising a polyolefin, wherein said bonding comprises the steps of contacting the cloth and the article at a temperature above the DSC softening point of the backing layer, and pressurizing the cloth and the article at a temperature below the DSC softening point of the backing layer. The invention further relates to a composite product obtainable by a method according to the invention.

Abstract: The invention is directed to monoaxially drawn polyolefin multilayer film, tape or yarn of the AB or ABA type, having a stretch ratio of more than 12, having an E-modulus of at least 10 GPa, substantially consisting of a central layer (B) of a polyolefin selected from polyethylene and polypropylene, and one or two other layers (A) of a polyole fin from the same class as the material of the central layer B, the DSC melting point of the material of the said other layers (A) being lower than the DSC melting point of the material of the said central layer (B), wherein the central layer (B) is between 50 and 99 wt. % of the material and the other layers (A) between 1 and 50 wt. %. The present invention further relates to a method of manufacturing such a tape, film or yarn.

Abstract: The invention is directed to monoaxially drawn polyolefin multilayer film, tape or yarn of the AB or ABA type, having a stretch ratio of more than 12, having an E-modulus of at least 10 GPa, substantially consisting of a central layer (B) of a polyolefin selected from polyethylene and polypropylene, and one or two other layers (A) of a polyolefin from the same class as the material of the central layer B, the DSC melting point of the material of the said other layers (A) being lower than the DSC melting point of the material of the said central layer (B), wherein the central layer (B) is between 50 and 99 wt. % of the material and the other layers (A) between 1 and 50 wt. %. The present invention further relates to a method of manufacturing such a tape, film or yarn.