Patent · US Expired

Flame retarding plastic materials

US3980614A · kind A · utility

7Cited by

5References

4Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Siegfried Noetzel
Walter Herwig · Bad Soden, DE
Rudolf Kern
Werner Lotz · Niedernhausen, DE

Key dates

Filing date	Oct 6, 1975
Grant date	Sep 14, 1976
Priority date	—
Expiry date	Oct 6, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K5/53
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The specification discloses flame retarding plastic materials which contain, as the flame retarding agent, a phosphinic, diphosphinic or tri-phosphinic acid derived from 2-alkyl-2,5-dioxo-1,2-oxaphospholane and an organic monoamine or diamine or triamine, respectively.

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