Patent · US Expired

Ultra white N,N'-ethylene-bis(tetrabromophthalimide) and its production in acetic acid

US5317048A · kind A · utility

5Cited by

15References

28Claims

0Family size

Assignee

Great Lakes Chemical Corp. · US

Inventors

Brian Tarbit · Mear Street, GB
Brian Adger
Paul Eaton Willett · Caboolture, AU

Key dates

Filing date	Sep 30, 1992
Grant date	May 31, 1994
Priority date	—
Expiry date	Sep 30, 2012

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D209/48
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Disclosed is a process for producing an ultra-white N,N'-ethylene-bis(tetrabromophthalimide) product useful as a flame retardant. Also disclosed is a flame retardant composition predominantly comprised of N,N'-ethylene-bis(tetrabromophthalimide) and having a yellowness index of about 4 or less.

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