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AssigneeEPI Environmental Products Inc.
InventorsRodrigo A. Garcia, Joseph Gock Gho
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The present invention is directed to an additive degradable/compostable package, the combination of a metal carboxylate and an aliphatic poly hydroxy-carboxyl acids, which is added to polyolefin resins in the production of specific products. The addition of the additive degradable/compostable package produces a packaging product which is degradable/compostable. The additive package may include calcium oxide (CaO) to make the modified polyolefin resin more processable. Further, stabilizers or oxidizers may be added to the additive package. The additive package is specifically modified or tailored to the application of the packaging product, e.g. trash bag, compost bag, merchant bag, diaper liner, wrapping film, agricultural film, landfill cover or foamed planks. The present invention further includes the method or process of producing the degradable/compostable concentrates and the improvement of the process of making the degradable/compostable packaging products by the addition of calcium oxide (CaO).
A degradable/compostable additive package for polyolefin resins which consists essentially of low melting polyolefin containing cobalt stearate and citric acid.
A degradable/compostable additive package for polyolefin resins which comprises low melting polyolefin, cobalt stearate, citric acid and calcium oxide.
A degradable/compostable additive package for polyolefin resins which contains
A degradable/compostable additive package for polyolefin resins which consists essentially of
A degradable/compostable additive package for polyolefin resins which contains pellets of low melting polyolefin containing 7.5 to 22.5 wt % of pretreated metal carboxylate, 7.5 to 22.5 wt % of pretreated aliphatic poly hydroxy-carboxyl acid, the amount of carboxylate and acid totaling 30 wt %.
A process for producing a concentrate for producing degradable/compostable polyolefin products which comprises:
A degradable/compostable additive package for polyolefin resins which consists essentially of copolymers of ethylene with acid monomers, cobalt stearate and an aliphatic poly hydroxy-carboxyl acid.
A degradable/compostable additive package for polyolefin resins which consists essentially of low melting polyolefin containing 1.5 wt % of cobalt stearate, 0.5 wt % of citric acid and 0.2 wt % of a stabilizer.
A degradable/compostable additive package for polyolefin resin which contains low melting polyolefin containing 1.5 wt % of metal carboxylate, 0.5 wt % of citric acid and 0.2 wt % of an oxidizer.
Dependencies are inferred from the claim text.