초록 ▼

A microwave container which morphs from a relatively microwave transparent condition to a relatively microwave blocking condition in response to microwave irradiation. The container wall section has a plurality of discrete, unconnected microwave reflective material elements initially permitting the

A microwave container which morphs from a relatively microwave transparent condition to a relatively microwave blocking condition in response to microwave irradiation. The container wall section has a plurality of discrete, unconnected microwave reflective material elements initially permitting the transmission of microwave energy into the container and either a microwave absorptive material or a thermally responsive material active to coalesce the microwave reflective material elements into a connected array or pattern to block the transmission of microwave energy from entering the container after absorbing a predetermined amount of microwave energy.

대표청구항 ▼

[ What is claimed is:] [1.] Apparatus for shielding foodstuffs from scorching in a microwave field comprising:a) a generally microwave transparent base material forming a generally enclosing container for foodstuffs:b) an energy reactive material located on the base material and having:i) an initial

[ What is claimed is:] [1.] Apparatus for shielding foodstuffs from scorching in a microwave field comprising:a) a generally microwave transparent base material forming a generally enclosing container for foodstuffs:b) an energy reactive material located on the base material and having:i) an initial configuration of a plurality of discrete, separated elements of microwave reflective material individually sized and sufficiently spaced apart to allow transmission of microwave energy into the container to heat foodstuffs located within the container; andii) a final configuration wherein a substantial majority of the discrete, separated elements come into contact with each other to form a continuously extending arrangement substantially blocking transmission of microwave energy into the container to prevent scorching of the foodstuff rein the energy reactive material undergoes a transition from the initial configuration to the final configuration after a predetermined exposure to the microwave energy.