Flame retardant polylactic acid

Details Flame retardant polylactic acid Flame retardant polylactic acid

C - Chemistry, Metallurgy

08

K

C08K 5/00 (2006.01)

Patent

CA 2532456

Polylactic acid is made flame retardant by the incorporation of a synergistic mixture of (i) at least one sterically hindered amine stabilizer and (ii) at least one conventional flame retardant selected from the group consisting of the organohalogen, phosphorus containing, isocyanurate and melamine based flame retardants. The compositions of the invention combine good flame retardant properties with light stability and good mechanical properties.

On décrit un acide polylactique rendu non inflammable par l'incorporation d'un mélange synergique de: i) au moins un stabilisant amine stériquement entravé; et ii) au moins un ignifugeant classique sélectionné dans le groupe constitué par les ignifugeants à base d'organohalogènes, de phosphore, d'isocyanurate et de mélamine. Les compositions de l'invention combinent de bonnes propriétés d'ignifugation avec des propriétés de stabilisation à la lumière et de bonnes propriétés mécaniques.

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