C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
402/191, 402/235
C07D 251/54 (2006.01) C07D 251/70 (2006.01) C08K 5/34 (2006.01) C08K 5/3492 (2006.01)
Patent
CA 1088067
Abstract of the Disclosure Halogen-containing heterocyclic dicarboxylic acid of the general formula (I) Image wherein R1 represents alkylene or cycloalkylene having 1 to 17 C atoms, phenylene, benzylene, halogenated phenylene and benzylene of the formulae Image and Image , respectively, in which X represents chlorine and/or bromine atoms, and n represents integers from 1 to 4, R2, R3 and R4 are identical or different and represent a hydrogen atom, alkyl or cycloalkyl each having 1 to 18 C atoms, phenyl, benzyl, halogenated phenyl and benzyl of the formulae Image and Image , respectively, in which m represents integers from 1 to 5, and X has the aforesaid meaning, with at least one of the radicals R1 to R4 representing one of the halogen-containing groups ; and the acid halides, acid esters, acid amides and salts thereof, are excellently suitable as flameproofing agents for polyamides and polyesters. They can be added to these polymers by mixing, or they can be incorporated into the polymer chain. The polyamides and polyesters obtained are characterised by good mechanical properties.
302755
Buxbaum Lothar
Kainmuller Thomas
Ag Ciba-Geigy
Fetherstonhaugh & Co.
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