Global Patent Index - EP 0250570 A1

EP 0250570 A1 19880107 - CERAMIC PROCESSING AND PRODUCTS.

Title (en)

CERAMIC PROCESSING AND PRODUCTS.

Title (de)

VERARBEITUNG KERAMISCHER MATERIALIEN UND PRODUKTE.

Title (fr)

TRANSFORMATION ET PRODUITS CERAMIQUES.

Publication

EP 0250570 A1 19880107 (EN)

Application

EP 87900617 A 19861230

Priority

US 81516085 A 19851231

Abstract (en)

[origin: WO8704110A1] A novel method of processing sinterable powders into sintered ceramic products of calcium phosphate compounds, such as hydroxylapatite, involving agglomeration of fine particles with a binding agent and extraction of the binding agent from the agglomerates prior to sintering. The sintered agglomerates have a porosity, particle size and spherical shape which provides a unique combination of advantageous properties when employed as implant materials.

Abstract (fr)

Un nouveau procédé de transformation de poudres frittables en produits céramiques frittés en composés de phosphate de calcium, tels que h'hydroxylapatite, comprend l'agglomération de fines particules avec un liant et l'extraction du liant contenu dans les particules agglomérées avant le frittage. La porosité des agglomérés, la taille et la forme sphérique des particules qui les composent, permettent d'obtenir une combinaison unique de propriétés favorables lors de leur utilisation comme matériau d'implants.

IPC 1-7

B29B 9/08; B29C 67/04; C04B 33/32; C04B 38/04

IPC 8 full level

A61F 2/28 (2006.01); A61L 27/12 (2006.01); C04B 35/447 (2006.01); C04B 35/634 (2006.01); C04B 35/636 (2006.01); C04B 35/638 (2006.01); A61F 2/00 (2006.01); A61F 2/30 (2006.01)

CPC (source: EP)

A61F 2/28 (2013.01); A61L 27/12 (2013.01); C04B 35/447 (2013.01); C04B 35/634 (2013.01); C04B 35/63416 (2013.01); C04B 35/63444 (2013.01); C04B 35/636 (2013.01); C04B 35/6365 (2013.01); C04B 35/638 (2013.01); A61F 2002/30968 (2013.01); A61F 2310/00293 (2013.01)

Citation (search report)

See references of WO 8704110A1

Designated contracting state (EPC)

AT BE CH DE FR GB IT LI LU NL SE

DOCDB simple family (publication)

WO 8704110 A1 19870716; CA 1279175 C 19910122; EP 0250570 A1 19880107

DOCDB simple family (application)

US 8602830 W 19861230; CA 526432 A 19861229; EP 87900617 A 19861230