Patent · US Active

Method for the production of dibenz[c,e] [1,2]-oxaphosphorin derivatives, amino-dibenz[c,e] [1,2]-oxaphosphorin and also use thereof

US7973191B2 · kind B2 · utility

17Cited by

3References

16Claims

0Family size

Assignee

EMS-Patent AG · CH

Inventors

Manfred Döring · Bad Mergentheim, DE
Brigitte Lindner · Sargans, CH
Andreas Kaplan · Chur, CH

Key dates

Filing date	Aug 12, 2009
Grant date	Jul 5, 2011
Priority date	—
Expiry date	Aug 12, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/5399
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The invention relates to general syntheses of (6H)-dibenz[c,e] [1,2]-oxaphosphorins which are substituted with nitrogen compounds on the phosphorus atom and comprising commercially available 6H-dibenz[c,e] [1,2]-oxaphosphorin-6-oxides. These nitrogen-containing (6H)-dibenz[c,e] [1,2]-oxaphosphorins can be used as reactive starting substances for further syntheses or as flameproofing agents or as stabilisers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.