Anorganic metal oxide nanoparticles and polymer composites containing metal oxide nanoparticles

摘要

Nano-powder (A) exhibiting a spherical particle morphology, comprises inorganic metal oxide- and metal mixed oxide (I). Nano powder (A) exhibiting a spherical particle morphology, comprises inorganic metal oxide- and metal mixed oxide of formula (MeiOj) (I). Me : metal atom of the first five main groups, eight sub-groups or lanthanoids; i : 1-3; and j : 1-7. Independent claims are included for: (1) a nano-dispersion and a polymer composite containing (A) and a reactive organic matrix; (2) the preparation of (A) with composition of formula (MeoOp(OH)k[(OOC)l-Rm]n) (II) comprising producing the particles by pyrolytic process in a solid phase, solution or dispersion; (3) the preparation of a polymer nano-dispersion comprising dispersing the nano-powder; and (4) the preparation of a polymer composite comprising polymerization, polyaddition and/or polycondensation of the composite from a nano-dispersion, a nano/nano- or nano/nano/micro-hybrid dispersion, obtained by dispersing the nano- and/or micro-powder into organic matrix, where the nano-dispersion is tempered before and/or after the terminal hardening. R : H and/or organic residues; o : 1-20; p : 0-40; k, n : 0-80; and l, m : 1-80.