Patent · US Active

Nitrous bridged derivatives of 6H-dibenz[c,e][1,2]-oxaphosphorine-6-oxides, process for the preparation and use thereof

US8058329B2 · kind B2 · utility

5Cited by

7References

23Claims

0Family size

Assignee

SCHILL + SEILACHER STRUKTOL GMBH · DE

Inventors

Berthold Just · Hamburg, DE
Uwe Dittrich · Schifferstadt, DE
Holger Keller · Sinsheim, DE
Manfred Doering
Uwe Storzer · Tübingen, DE
Michael Ciesielski · Orchard Park, US

Key dates

Filing date	Nov 3, 2005
Grant date	Nov 15, 2011
Priority date	—
Expiry date	Apr 22, 2028

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K21/12
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Nitrous bridged derivatives of 6H-dibenz[c,e][1,2]-oxaphosphorine-6-oxides, process for the preparation and use thereof.The invention refers to nitrous bridged derivatives of 6H-dibenz[c,e][1,2]-oxaphosphorine-6-oxides, a process for the preparation thereof and their use as flameproofing agents for polymers such as polyesters, polyamides, polycarbonates, polystyrenes, polyethylene, polypropylene, phenolic and epoxy resins. The derivatives have the Formulae I or II:

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