Starch coated polyester film for release of canned meat products
AssigneeToray Plastics (America), Inc.
InventorsJohn Fitch, Jan Moritz, Pat Andrews
Life of this patent
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Abstract
An embodiment relates to a multi-layer, biaxially oriented polyester (BOPET) film comprising a food contact substance, wherein the BOPET has a percent release in a retort test after can lamination such that substantially all food contacting the BOPET during the retort test is released. Another embodiment relates to a method comprising applying a food contact material comprising a food contact substance to a multi-layer, biaxially oriented polyester (BOPET) film, wherein the food contact material is prepared at around room temperature without heating.
Claims12
A film comprising a multi-layer film, comprising a base film comprising biaxially oriented polyester (BOPET) film and a release coating;
- the BOPET film having at least an A/B structure wherein layer A consists of an amorphous PET polyester with a melting point of 200-235° C. and layer B consists of a crystallized PET polyester with a melting point of 240-260° C., the release coating comprising a food contact substance comprising a starch in the coating, a release agent and a crosslinking agent that crosslinks the starch;
- the release coating is separate from the BOPET film and on the layer B, wherein the release coating has a percent release in a retort test after can lamination such that substantially all food contacting the release coating during the retort test is released.
Dependencies are inferred from the claim text.