Packaging material and packages produced from the material...

Details Packaging material and packages produced from the material... Packaging material and packages produced from the material...

2005-03-15

2005-03-15

Pyon, Harold (Department: 1772)

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

C428S034100, C428S034400, C428S034600, C428S034700, C428S034800, C428S035200, C428S035400, C428S411100, C428S446000, C428S448000, C428S451000, C428S454000, C428S500000

Reexamination Certificate

active

06866907

ABSTRACT:
The present invention provides a packaging material of single multi-layer type including at least one layer of plastic having improved light barrier properties, and which layer of plastic includes particles of carbon black and wherein the plastic layer containing the carbon black further includes mineral particles substantially uniformly distributed within the plastic material of that layer in a quantity between about 3% and 80% of the total weight of the layer. The packaging materials have superior light barrier properties over similar materials in the art, and can be used to enhance the packaging and storage of light-sensitive food products.

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patent: WO 9713637 (1997-04-01), None
Richard J. Lewis, Hawley's Condensed Chemical Dictionary, 2001, John Wiley & Sons, fourteenth edition, p. 208 and 753.

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