| 摘要 |
Containers are provided. An exemplary container for storing an item comprises: an insulating material defining an interior, the insulating material comprising a bio-based polyurethane; and an outer shell located about at least a portion of the exterior of the insulating material, the outer shell comprising a bio-based polyurethane. The bio-based polyurethane is made from a first component, which may be one of either an isocynate or a rubinate; a second polymer component, which may be a vegetable oil, and blowing agent 254. A bio-based polyurethane made with blowing agent 254 tends to produce a product with good insulating characteristics.
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