Phosphinic acid aluminum salts
US6211402A · kind A · utility
15Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Feb 16, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F17/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Aluminum salts of phosphinic acid or diphosphinic acids having alkyl and/or aryl substitutes, obtainable by heating an ester of the corresponding phosphinic acids or diphosphinic acids with aluminum hydroxide at a temperature of more than 150.degree. C. under pressure in the presence of water, are distinguished by a particular crystal structure and are suitable as flameproofing agents for plastics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.