Method of preparing fire retardant insulation
US4172804A · kind A · utility
10Cited by
7References
12Claims
0Family size
Inventors
Key dates
| Filing date | Nov 21, 1977 |
| Grant date | Oct 30, 1979 |
| Priority date | — |
| Expiry date | Nov 21, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of preparing fire retardant cellulosic fiber insulation which includes the steps of reacting borax with a source of hydrogen ions such as sulfuric acid or various other acids or acid salts in an amount sufficient to convert at least about 20% of the borax into boric acid and a sodium salt and then mixing the resulting composition with a cellulosic fiber base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.