Clarity of low density polyethylene compositions containing anti-block agents by addition of polyethylene glycol (II)
AssigneeEnron Chemical Company
InventorsFrank T. Kitchel, R. Sven Solvik, Michael L. Opacich
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Abstract
A method is disclosed for improving the clarity of polyethylene film containing silica or diatomaceous earth as an anti-blocking agent. The method comprises treating the anti-blocking agent with polyethylene glycol such that sufficient polyethylene glycol is deposited on said anti-blocking agents such that at least 10 parts per million of polyethylene glycol is present in the final blend. Next, the treated anti-blocking agent is added to the polyethylene resin and this blend is formed into a film.
Claims5
In a method for forming polyethylene films which comprises incorporating a silica or diatomaceous earth anti-blocking agent into polyethylene resin and then forming a film from this blend, the improvement which comprises treating the anti-blocking agent with polyethylene glycol prior to addition of the anti-blocking agent to the polyethylene resin such that at least 10 parts per million of polyethylene glycol is present in the final polyethylene blend whereby the see-through clarity of the resultant film is enhanced.
Dependencies are inferred from the claim text.