Method of making a thermally insulated polyurethane shipper
US9950851B2 · kind B2 · utility
29Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 15, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Apr 4, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/62
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of making a thermally insulated sandwich polyurethane (PUR) shipper for a temperature sensitive payload is provided. The method comprises the steps of mounting an inner box upside down on a tool, adhering an insulating panel to the outer facing surfaces of the inner box, positioning an outer box around the inner box assembly, pouring liquid polyurethane into the gap between the outer box and inner box assembly, and foaming the liquid polyurethane. The PUR foam fills the space between the VIP panels and the outer box, and preferably covers the VIP panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.