Multilayer insulating material and process for production thereof
US4279952A · kind A · utility
29Cited by
8References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1978 |
| Grant date | Jul 21, 1981 |
| Priority date | — |
| Expiry date | Nov 27, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/57
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
By bonding a graphite sheet possessing tightness to at least one surface of carbon fiber felt sheet possessing gas permeability by means of a carbonaceous binder, a multilayer thermally insulating material suitable for use in a heating furnace employing a nonoxidizing atmosphere is obtained. This insulating material has mechanical strength which does not decrease with a long period of use and gives rise to little contamination of articles being heated in the furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.