MICROPARTICULATE HYDROTALCITE, METHOD FOR PRODUCING SAME, RESIN COMPOSITION OF SAME, AND SUSPENSION OF SAME

摘要

A hydrotalcite is represented by formula (1):; (M²⁺)_1-X(M³⁺)_X(OH)₂(A^n−)_X/n.mH₂O  (1),wherein M²⁺ indicates a divalent metal, M³⁺ indicates a trivalent metal, A^n− indicates an n-valent anion, n indicates an integer of 1 to 6, 0.17≤x≤0.36, and 0≤m≤10. The hydrotalcite has(A) a lattice strain in the 003 direction is 3×10^−3 or less as measured using an X-ray diffraction method;(B) primary particles with an average width between 5 nm and 200 nm inclusive per a SEM method; and(C) a degree of monodispersity of 50% or greater (degree of monodispersity (%)=(average width of primary particles as measured using the SEM method/average width of secondary particles as measured using a dynamic light scattering method)×100). A resin containing the hydrotalcite, a suspension containing the hydrotalcite and a method for producing the hydrotalcite are disclosed.