Process for the heat treatment of insulating material
US4906309A · kind A · utility
6Cited by
5References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1988 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Mar 28, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2503/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to the heat treatment of thermally insulating fibrous materials, in particular envisaging the use of thermosetting resins as binders. The material is subjected to a field of ultra high frequency radiation, with the water content of said material and the intensity of the radiation field adjusted to suitable levels, and to a current of hot gas. This method of treatment provides a highly advantageous energy yield and very good homogeneity of the characteristics of the product. It is particularly suitable for insulating shells based on mineral fibre felt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.