Polymeric composites with crystalline mixed metal hydroxide...

C - Chemistry – Metallurgy – 08 – K

Patent

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C08K 3/22 (2006.01) C08K 7/00 (2006.01)

Patent

CA 2205844

The invention provides composites of organic polymeric compositions including a matrix of an organic polymer and a filler distributed throughout the matrix, the filler being present in the matrix substantially as separate particles, each about the fundamental particle size of the filler. The fillers are unique mixed metal hydroxide compositions that are obtainable in sub-micron size particles. These particles are layered and have a BET specific surface area in excess of about 100 m2/g. An anion of the particulates is selected to be compatible with the organic polymer thereby providing ease of dispersion of the filler particles throughout the polymer matrix.

L'invention porte sur des composés de compositions de polymères organiques comprenant une matrice en polymère organique et une charge répartie à l'intérieur de la matrice et s'y trouvant sous forme de particules séparées dont chacune présente une taille voisine de la taille fondamentale des particules de la charge. Les charges sont des compositions uniques à base de mélanges d'hydroxydes métalliques qu'on peut obtenir en particules de moins d'un micron. Ces particules, de structure laminaire, présentent une surface spécifique (BET) dépassant environ 100m?2¿/g. Un anion des particules est sélectionné pour sa compatibilité avec le polymère organique, ce qui facilite la dispersion des particules de la charge à l'intérieur de la matrice polymère.

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