| 摘要 |
<p>PROBLEM TO BE SOLVED: To enable good cooking without uneven heating by providing a projecting part having an upward or downward projected corner at the bottom of a container and forming a flat surface surrounded with the projecting part. SOLUTION: A container main body 1 of a container a1 for a microwave oven is so constructed that a frame part 4 having a trapezoidal section is projected upward on the central part of the bottom part 3 connected to the circular side wall 2 and the frame part 4 is formed to be like a circle with the similar figure to the container main body a1 , the inside of which is a flat surface 5. The circular frame part 4 has, for example, a form obtained by connecting a joint part between the frame part 4 and the flat surface 5, that is, the diameter of the circular flat surface is 30mm, the height of the trapezoidal frame part is 3mm, the length of the upper side of the trapezoid, and the projection lgnthe of the inclined side is 3mm. As the materila quality of the container a1 for an microwave oven, used are polypropylene, inorganics (talc)-containing polypropylene, and crystallized polyethylene terephthalate.</p> |
