Phosphonic acid derivatives as flameproofing agents
US4148782A · kind A · utility
4Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1977 |
| Grant date | Apr 10, 1979 |
| Priority date | — |
| Expiry date | Sep 12, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/51
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Flameproofed polymeric organic materials include as a flameproofing agent a compound selected from esters, ester-amides and amides of pyrophosphoric, of mono-, di- and trithiopyrophosphoric, of triphosphoric, and of mono-, di-, tri- and pentathiotriphosphoric acids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.