Process for flameproofing organic fibrous material with phosphonic acid salts
US4288489A · kind A · utility
7Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1979 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | Jan 31, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/268
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for the non-permanent flameproofing of organic fibrous materials with monoammonium or monoalkali metal salts of an alkylphosphonic acid is claimed. Monoammonium methyl- and ethylphosphonate are also claimed. The claimed process is suitable for a very wide variety of fibrous materials. The flame-retardants used according to the invention have no corrosive action and have excellent compatability with most other textile finishing agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.