Heat attenuators, blocking agents or heat insulators for temperature control

Full Title

Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents > for packaging foodstuffs or other articles intended to be cooked or heated within > specially adapted to be heated by microwaves > Means for affecting the heating or cooking properties > Heat attenuators, blocking agents or heat insulators for temperature control