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

US10376612B2 · kind B2 · utility

Assignees

• INSTITUT NATIONAL POLYTECHNIQUE DE TOULOUSE · FR
• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR
• UNIVERSITE PAUL SABATIER—TOULOUSE III · FR

Inventors

• Jérémy Soulie · Toulouse, FR
• Christèle Combes · Ramonville-Saint-Agne, FR
• Christian Rey · Périgueux, FR
• Pierre Gras · Châteaurenard, FR

Key dates

• Filing date: Sep 29, 2015
• Grant date: Aug 13, 2019
• Expiry date: Sep 29, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/03
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

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.