Abstract: Employment of cycloaliphatic salt nucleating agent additives in thermoplastics or polyolefins such as polypropylene may improve the properties of a manufactured film. Furthermore, co-additives used with the cycloaliphatic salts, such as fatty acid salts, also may improve the film properties in terms of physical properties and haze of the resulting film. Fatty acid salts may include stearates with metal ion salts, such as zinc, calcium, lithium, magnesium or sodium.

Abstract: A film article comprising a polyethylene polymer or copolymer and a cycloaliphatic metal salt is disclosed. A method of making a blown and a cast polyethylene film is shown. The film may also include various additives that are employed to improve the properties of the film, including stearate-containing compounds. Additives employed in one embodiment of the invention may reduce the percent haze of film formed in the process, thereby providing desirably low levels of haze. Zinc stearate is one additive that can be employed in making a low haze polyethylene film.