Bromine Compounds Limited

Eva Ellmann

Hyman Stollar

Mark Grinberg

Khaim Khariton

Pierre Georlette

Shaul Yanai

Avraham Teurestein

A process for the preparation of Decabromodiphenyl ether is disclosed, which employs dibromomethane as the reaction medium, at temperatures not exceeding 80.degree. C. The product obtained by the process of the invention possesses improved thermal stability.

Process for the preparation of decabromodiphenyl ether with improved

A process for the preparation of decabromodiphenyl ether by the reaction of diphenyl ether or of a partially brominated derivative thereof, in a mixture of halogenated organic solvents is described. The process of the invention provides a product having improved thermal stability. The process can be carried out in a quasi-steady state manner, thereby producing a product with constant quality.

Method for the preparation of decabromodiphenyl ether

The present invention relates to flame retardant polymer compositions comprising a flammable polymer and an amount of between 1% to 40% by weight of tetrabromodipentaerythritol as flame retardant agent. Optionally, synergistic flame retardant additives such as antimony oxide are incorporated in the compositions. The flammable polymers are selected from polyolefins, polyamides and styrenic resins or mixtues thereof. The flame retardant agent according to the present invention imparts to the polymer compositions improved thermal aging behaviour, thermal stability and non blooming property, compared with known flame retardant agents.

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Beer-Sheva, Israel

Eva Ellmann