Halogenated benzyl phosphonate esters; process for preparing...

C - Chemistry – Metallurgy – 07 – F

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403/18, 400/7071

C07F 9/40 (2006.01) C08K 5/53 (2006.01) C08K 5/5337 (2006.01)

Patent

CA 1196008

PRECIS DE LA DIVULGATION: La présente invention concerne des phosphonates de formule (I) Image (I) dans laquelle X représente un atome de chlore ou de brome, m et n représentent les nombres moyens d'atomes X substituants des noyaux aromatiques et sont compris entre 0 et 5. L'inven- tion concerne également un procédé de fabrication des phospho- nates de formule (I) par condensation d'un ou plusieurs halo- génures benzyliques avec le 2,2'[1,2 éthane diyl bis (1,3,2 dioxaphospholane)]. Les phosphonates selon l'invention sont notamment utilisés pour ignifuger des matières plastiques (par exemple les mousses de polyuréthanes), les textiles artificiels, les élastomères.

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