Packages
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.
1. A single layer biodegradable package made from a composition comprising:
i) 25-85% (w/w) polyolefin polymer,
ii) 6% (w/w) pro oxidant comprising 0.5-15% by weight carboxylates of Fe, Mn, Co or Cu, 1.0-30% by weight starch, 2.0-50% by weight CaCO 3 and 25-85% by weight polyethylene or polypropylene,
iii) 10-70% (w/w) Calcium Carbonate; and
iv) 10-80% (w/w) of a filler in the form of natural fiber; and wherein said composition has been shaped into a rigid package.
2. A package according to claim 1 , wherein the polyolefin is polyethylene.
3. A package according to claim 1 , wherein the filled is of the group comprising cellulose fiber, wood fiber, powdered wood or china wood and rice spelt.
4. A package according to claim 1 , wherein the composition has been shaped into a package by injection molding, for molding thermo molding blow molding, cold molding, vacuum thermoforming compression molding slot-die extrusion or span forming.
5. A package according to claim 1 , wherein the polyolefin is polypropylene.
6. A package according to claim 5 , wherein the polypropylene is present in an amount of 44% (w/w).
7. A package according to claim 1 , wherein the composition further contains 1-60% starch.
8. A package according to claim 7 , wherein the starch is present in an amount of 50% (w/w).