Pyrophosphate type material, process for preparing such a material and use for bone repair

Abstract

A material, especially a glassy material of pyrophosphate type, corresponding to the general formula (I): {[(M2+)1−x(R+)2x]2[(P2O74−)1−y(PO43−)4y/3]} n(H2O) in which x and y are positive rational numbers each between 0 and 0.8, and n is such that the weight percentage of water in the material is greater than 0 and less than or equal to 95. M2+ represents a bivalent ion of a metal chosen from calcium, magnesium, strontium, copper, zinc, cobalt, manganese and nickel, or any mixture of such bivalent ions. R+ represents a monovalent ion of a metal selected from potassium, lithium, sodium, and silver, or any mixture of such monovalent ions. This material in particular can be used in manufacturing of bone replacements or prosthesis coatings.

Dependencies are inferred from the claim text.