Compressed, extruded, evacuated open-cell polymer foams and evacuated insulation panels containing them
US5977197A · kind A · utility
11Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 2, 1996 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Feb 2, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0015
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a compressed, evacuated, open-cell polymer foam, the foam having an open cell content of about 70 percent or more prior to compression, the foam having a thickness of about 40 to about 90 percent of the initial thickness of the foam prior to compression, the foam having an absolute cell gas pressure of about 10 torr or less in its open cells, the foam having a density of about 16 to about 250 kilograms per cubic meter. Further disclosed is an evacuated insulation panel employing the foam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.