Composite material based insulated shipping container
A sandwich composite material for use in an insulated shipping container includes two different central (core) materials sandwiched between an inner and an outer skin material. The core contains a low density, high compressive strength cellular material and a low density, low thermal conductivity insulation fabric material. The inner and outer skin layers increase the overall flexural rigidity of the composite material. The sandwich composite material can be made into flat sheets of required size and integrated into a fabric sleeve to form the container. Alternatively, the sandwich composite material can be molded as the container to achieve uniform and continuous insulation and structural support.
1. An insulated shipping container comprising:
a plurality of wall panels; and
a continuous fabric outer shell housing each wall panel in the plurality;
each wall panel comprising
a non-metallic polymer-based composite having a compressive strength of at least 100 psi (690 kPa) and
a thermal conductivity in a range of 10-14 mW/mK at 75° F. (23.9° C.);
the insulated shipping container being deployable between a collapsed state when not in use and an uncollapsed state when in use.
2. An insulated shipping container according to claim 1 wherein the continuous fabric outer shell is made of polyester-based, non-porous, water impermeable, dust resistant, washable material.
3. An insulated shipping container according to claim 1 wherein each wall panel is bonded directly to the continuous fabric outer shell.
4. An insulated shipping container according to claim 1 wherein the continuous fabric outer shell includes at least one pocket, a wall panel being housed inside the pocket.
5. An insulated shipping container according to claim 1 wherein the continuous fabric outer shell includes at least one fastener or magnetic lock.
6. An insulated shipping container according to claim 1 wherein in the collapsed state the container is a flat sheet.
7. An insulated shipping container according to claim 1 further comprising the wall panel including at least one of an inner skin layer and an outer skin layer.
8. An insulated shipping container according to claim 1 wherein each wall panel in the plurality has a density of 3-5 lbs/ft 3 (about 48 to 80 kg/m 3 ).
9. An insulated shipping container according to claim 1 further comprising the insulated shipping container housing an inner sleeve.
10. An insulated shipping container according to claim 9 wherein the inner sleeve is at least one of moisture resistant and sterile.