Methods for increasing toughness of immiscible polymer blends

Details Methods for increasing toughness of immiscible polymer blends Methods for increasing toughness of immiscible polymer blends

C - Chemistry, Metallurgy

08

L

C08L 67/02 (2006.01) C08L 33/12 (2006.01)

Patent

CA 2715039

An immiscible polymer blend that includes an amount of poly(trimethylene terephthalate) (PTT) and an amount of poly(methylmethacrylate) (PMMA). A method for preparing an immiscible polymer blend by (a) identifying a first polymeric component and a second polymeric component as immiscible when blended; (b) combining the first polymeric component and the second polymeric component; and (c) mixing the first polymeric component and the second polymeric component to produce an immiscible polymer blend that includes structures in the blend having a maximum size of less than about 1,000 µn is also presented. An article that includes an immiscible polymer blend of poly(trimethylene terephthalate) (PTT) and poly(methylmethacrylate) (PMMA) and an article formed from an immiscible polymer blend prepared by the method of the present invention are also presented.

Cette invention concerne un mélange de polymères non miscibles qui comprend une quantité de polytéréphtalate de triméthylène (PTT) et une quantité de polyméthacrylate de méthyle (PMMA). Un procédé de préparation d'un mélange de polymères non miscibles est également décrit, comprenant les étapes consistant à (a) identifier un premier composant polymère et un second composant polymère comme non miscibles quand ils sont mélangés ; (b) combiner le premier composant polymère et le second composant polymère ; et (c) mélanger le premier composant polymère et le second composant polymère pour obtenir un mélange de polymères non miscibles qui comprend des structures en mélange ayant une taille maximale inférieure à environ 1 000 µm. Un article qui comprend un mélange de polymères non miscibles à base de polytéréphtalate de triméthylène (PTT) et de polyméthacrylate de méthyle (PMMA) et un article formé à partir d'un mélange de polymères non miscibles préparé par le procédé selon l'invention sont également décrits.

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