In recent years, products have appeared in special packaging for heating in microwave ovens. Today their popularity is unusually high. According to statistics, 72% of consumers aged 35 to 50 prefer frozen semi-finished meat products packaged in containers suitable for direct heating in a microwave oven.

Materials for the manufacture of such packaging allow microwaves to pass through, have high heat resistance (since the temperature in a microwave oven can reach 200 ° C and above), are capable of converting microwave energy into thermal energy and at the same time ensure an even distribution of heat in the product. The composition of the polymer composition often contains highly dispersed particles of substances that accelerate microwave heating, which is necessary for frying or baking. Active elements are also used that can enhance the heating of the product in some zones and protect against radiation in others (such properties are known to be possessed by aluminum foil).

For the manufacture of microwave packages, polyethylene terephthalate and laminates based on it, polyamides, polycarbonates, copolymers of ethylene with vinyl alcohol (SEVON, or EVAL - ethylene vinyl alcohol), polypropylene and others, including combined materials, are used. For example, a special film material based on SEVON has been developed, containing highly dispersed mica. It is impervious to carbon dioxide and oxygen in the air, and thanks to mica it has a high thermal conductivity.