Dual-ovenable food trays
AssigneeInternational Paper Company
InventorsNorman Seung, Neil Matheson, III, Robert Dillon
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Abstract
A dual ovenable food tray having both high temperature resistance and superior food release properties is prepared by applying to at least one surface of a paperboard substrate an aqueous coating formulation comprising a styrene-acrylic latex having a low T.sub.g, a styrene-acrylic latex having a high T.sub.g or a mixture thereof, wherein the coating formulation preferably further comprises at least one additional component selected from coalescing solvents, thickening agents, defoaming agents, crosslinkers and wax emulsions.
Claims2
A dual ovenable food tray comprising a paperboard substrate which is coated on at least one side thereof with a coating composition comprising:
- a) from about 30 to about 70 wt. % BORS of a styrene-acrylic latex having a low T.sub.g of from about 20.degree. C. to about 30.degree. C.;
- b) from about 70 to about 30 wt. % BORS of a styrene-acrylic latex having a high T.sub.g of from about 55.degree. C. to about 65.degree. C.;
- c) from about 0 to about 20 wt. % BORS of a coalescing solvent;
- d) from about 0 to about 2 wt. % BORS of a thickening agent;
- e) from about 0 to about 1 wt. % BORS of a defoaming/dispersing agent;
- and
- f) the balance water.
Dependencies are inferred from the claim text.