C - Chemistry – Metallurgy – 08 – K
Patent
C - Chemistry, Metallurgy
08
K
C08K 5/07 (2006.01) C08L 27/06 (2006.01)
Patent
CA 2441097
The invention concerns the use of a stabilising composition free of 6-amino-uracyl or 6-amino-thiouracyl derivative, and comprising at least a .beta.-diketone bearing two aromatic rings one of which at least bears a substituent on one of the two ortho position or on the para position; said substituent being selected among the radicals -R, -OR, -SR, -COOH, -O-CF¿3?, -S-CF¿3?, formulae wherein R is an alkyl radical. The invention also concerns halogenated polymers comprising such a stabilising composition.
La présente invention a pour objet l'utilisation d'une composition stabilisante exempte de dérivé de type 6-amino-uracyles ou 6-amino- thiouracyles, et comprenant au moins une .beta.-dicétone portant deux noyaux aromatiques dont l'un au moins porte au moins un substituant sur l'une des deux positions en ortho ou sur la position en para; ledit substituant étant choisi parmi les radicaux -R, -OR, -SR, -COOH, -O-CF3, -S-CF3 formules dans lesquelles R est un radical alkyle. Elle a de même pour objet les polymères halogénés comprenant une telle composition stabilisante.
Dury Michel
Prud'homme Christian
Rhodia Chimie
Robic
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