Vacuum heat insulation material and cold reserving apparatus with the same
US7762634B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2005 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Feb 28, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31529
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A vacuum heat insulation material has a covering material which is a lamination body including a sealant layer, a metal foil layer, a first plastic film layer, and a second plastic film layer which are laminated in this order from inside to outside via adhesive layers. When a foreign body is pierced into the vacuum heat insulation material, the propagation of breakage caused by the piercing is blocked somewhere inside the lamination body, thereby preventing the formation of through-pinholes. This results in the provision of a high-quality vacuum heat insulation material with excellent long-term insulation performance by using a covering material excellent in gas barrier properties and pinhole resistance to the piercing of minute foreign bodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.