Insulation method and materials
US4000241A · kind A · utility
10Cited by
1References
9Claims
0Family size
Inventor
Key dates
| Filing date | Jun 13, 1975 |
| Grant date | Dec 28, 1976 |
| Priority date | — |
| Expiry date | Jun 13, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B28/26
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Expanded perlite particles and vermiculite particles are treated with an acid solution and then with waterglass. The moist material is introduced into any insulating cavity and allowed to dry, whereupon it self-adheres into a solid insulating sheet which also adheres to the surrounding cavity surfaces. The moist material is also used to make molded articles which are then treated further with an acid solution to render them stable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.