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Abstract

An improved, coated microwaveable paperboard or container useful for forming substantially rigid food containers such as plates, bowls, trays and the like and a process from producing the improved, coated paperboard is provided. The microwaveable paperboard and food containers, at a temperature in excess of 430.degree. F. evolves less than 0.1 milligrams of benzene per square inch, preferably less than 0.04 milligrams. Said paperboard and food containers are produced from a sized paperboard blank wherein a base coat and top coat comprise a mixture of an inorganic pigment and aliphatic copolymers. A base coat comprising an aliphatic latex and a pigment is applied directly to the paperboard, and a top coat comprising the same or different aliphatic polymer latex and a pigment is applied directly to the base coat to form the coated containers. Microwave susceptor layers are coated on the top coat. These containers are used to microwave and brown food at temperatures in excess of 430.degree. F. without evolving more than 0.1 milligrams of benzene per square inch of the container surface. The coated containers are also characterized by improved grease, oil, and cut resistance, improved varnish gloss, enhanced smoothness, and improved printing quality.

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