Heat insulating body
US4668555A · kind A · utility
38Cited by
1References
5Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 23, 1985 |
| Grant date | May 26, 1987 |
| Priority date | — |
| Expiry date | Dec 23, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249987
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A heat insulating body comprising a rigid polyurethane foam of open cell structure, and a vessel formed of metal-plastics laminate film enveloping said rigid polyurethane foam, the whole system being evacuated to reduce the internal pressure and then hermetically sealed; and an adiabatic box comprising said heat insulating body, an inner box and an outer box, said heat insulating body being disposed between said inner box and said outer box and the whole system being subjected to integral foaming with rigid polyurethane foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.