Abstract: The present invention relates to a package of a polyolefin polymer, wherein it comprises an addition of a pro-oxidant in the form of at least one salt of a metal of the group consisting of Mn, Fe, Cu, Co, and Ni, whereby the polyolefin is provided with a filler in the form of a mineral, such as calcium carbonate, such as talc, crushed marble, chalk, including nano particles thereof, calcite, silica, and nano particle clays, a filler in the form of natural fiber such as cellulose fiber, wood fiber, powderous wood or china grass, rice spelt, and starch.

Abstract: A co-extruded plastic film comprises an outer layer (12) formed of a polymer or co-polymer having a high surface energy, such as corona treated high density polyethylene; a core layer (14) preferably formed of a polyolefin, which can included a foamed polymer preferably formed by an exothermic blowing agent; and an inner layer (16) that includes a filler of sufficiently large particle size and in an sufficiently large amount that water vapor can escape laterally from under the film. The inner layer can also include a desiccant and be embossed. This film allows vapors to disperse and can also be moisture absorbent and vapor permeable. The film also has the benefit that one surface has high paint adherence and the opposite surface clings to a substrate, typically a painted metal or simple metal surface.

Abstract: A plastic masking film comprises at least two layers, an outer layer having sufficient surface energy to ensure the adherence of paint, and an inner layer providing cling to a surface. The outer layer comprises a corona-treated thermoplastic material having a surface with a surface energy greater than 50 dynes/cm. at the time of manufacture and which remains at a minimum of 35 dynes/cm. until use. The thermoplastic material of the outer layer comprises one or a combination of members selected from the group consisting of ethylene vinyl acetate, polyvinyl alcohol, polyvinyl acetate, ethylene vinyl alcohol, and high density polyethylene. The inner layer comprises high density polyethylene. Desirably, the film also includes a central core layer formed of one or a combination of polyolefins, preferably low-density polyethylene or linear low-density polyethylene, compatible with the inner and outer layers.

Abstract: A synthetic thermoplastic polymeric compound is structurally stable during its useful life and which upon introduction into a suitable environment, degrades under chemical, photochemical and biodegradation mechanisms into innocuous products. Stabilizers may be incorporated into the thermoplastic polymer to help maintain the structural and functional integrity through the useful life of the product. Degradation is then brought about by the synergistic interaction of the biodegradable component, an oxidizable component, transition metal additives and an aromatic ketone incorporated into the thermoplastic polymer. In the degradation process, the biodegradable component is metabolized to expose the thermoplastic polymer surface to chemical attack. In addition, the oxidizable component in conjunction with the catalytic system effects oxidative breakdown of the thermoplastic polymer to give lower molecular weight fragments that are susceptible to enzymatic attack in the decomposition environment.