Patent ID: 7578964
Filing Date: 2009-08-25
Classification: C08K

Abstract:
1. A method to form a shaped article, comprising the steps of: providing a powder injection molding composition mixture, comprising: a plurality of particles selected from the group consisting of a metal powder, a metal hydride powder, a ceramic powder, a ferrite powder, and mixtures thereof; and a binder consisting essentially of caprolactam and a polymeric material selected from the group consisting of polyethylene-co-acrylic acid and polystyrene-co-α-methylstyrene, wherein said caprolactam is present at a level of 15 weight percent to 25 weight percent of said powder injection molding composition mixture, and wherein said binder is melted to form a molten binder component; providing a mold having an internal cavity comprising a desired shape; introducing said powder injection molding composition mixture into said mold; solidifying said powder injection molding composition mixture to form a shaped green body; heating said shaped green body at up to 2500° C. to form said shaped article.