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US 6,475,543 B2Granted
Yellow pigmented food package
AssigneeClariant Finance (BVI) Limited
InventorBansi Lal Kaul
Life of this patent
Estimating the term…
Abstract
Use of a pigment of the formula (I) wherein R is chloro or methyl as a colourant in plastics materials for food packaging.
Claims9
A food package comprising:
- a plastic containing a pigment of the formula (I),
- wherein R is chloro or methyl, and″,
- a foodstuff,
- wherein said pigment is present in a concentration sufficient to color said plastic, but will not be extracted or rub off when said plastic is in prolonged or intimate contact with the foodstuff.
1 more element
A process for preparing a food package comprising the steps of:
- providing a plastic;
- mixing a pigment of the formula (I) with said plastic to form a mixture;
- wherein R is chloro or methyl
- melting said mixture to form a melt;
- extruding or blow molding said melt to form a sheet;
- and
- packaging a foodstuff within said sheet.
4 more elements
Dependencies are inferred from the claim text.