Abstract: A thermoplastic material formed from a hydrocarbon chain is modified to inhibit the production of static charges. The thermoplastic material may be a polypropylene. A weak salt having properties of ionizing and having its positive ions bond chemically to the thermoplastic material is mixed in the thermoplastic material. A chemical agent is also dispersed in the thermoplastic material and is provided with properties of facilitating the dispersion of the positive ions of the weak salt throughout the thermoplastic material for chemical bonding to the thermoplastic material. The chemical agent may also be bonded chemically to the thermoplastic material. The weak salt may be cupric acetate and the chemical agent may be an ethoxylated amine when the thermoplastic material is polypropylene. The polypropylene is preferably mixed with a suitable material such as polyethylene to enhance the amorphous characteristics of the thermoplastic material.

Abstract: A thermoplastic material formed from a hydrocarbon chain is modified to inhibit the production of static charges. The thermoplastic material may be a modified styrene or a polystyrene. A chemical agent is dispersed in the thermoplastic material and is provided with properties of combining with the carbon molecules in the modified styrene or the polystyrene. The chemical agent may be an amine. The amine is preferably ethoxylated.The polystyrene may be a crystal styrene or a high impact styrene. The amount of the ethoxylated amine in the material is dependent to some extent upon whether the polystyrene is a crystal styrene or a high impact styrene.The material of this invention may be formed as sheets as by extrusion or may be injection molded into different members such as panels. The material may be formed by mixing the ethoxylated amine and the polystyrene and extruding the mixture under conditions of controlled temperatures and pressures and for controlled dwell times.

Abstract: Polyethylene having a relatively high specific gravity is modified to inhibit the production of static charges. A weak salt having properties of ionizing and having its positive ions bond chemically to the polyethylene is mixed in the polyethylene. A chemical agent is also dispersed in the polyethylene and is provided with properties of facilitating the dispersion of the positive ions of the weak salt throughout the polyethylene of high specific gravity for chemical bonding to the polyethylene. The weak salt may be cupric acetate and the chemical agent may be an amine. The amine is preferably ethoxylated. The material of this invention may be formed as non-transparent bags or as sheets. The material may be formed by mixing the different chemicals and extruding the mixture under conditions of controlled temperatures and pressures and for controlled dwell times.