Phosphorus-containing carboxylic acid derivatives process for preparations thereof and flame retardant
US7186784B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2002 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Aug 12, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/657172
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There are disclosed a phosphorus-containing carboxylic acid derivative which has a group containing phosphorus atom and has in its molecule, a group represented by the following formula (1):wherein R1, R2 and R3 are each hydrogen atom or a hydrocarbon group having 1 to 18 carbon atoms, and Y is oxygen atom or sulfur atom; a process for producing the derivative; and a flame retardant comprising the foregoing derivative as an effective ingredient. The present invention can provide the phosphorus-containing carboxylic acid derivative and a flame retardant which are each excellent in solubility in an organic solvent, compatibility with a variety of resins, stability and flame retardancy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.