Process and molding compound for producing inorganic sintered products by injection molding

US5417756A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Michael Bayer · South Euclid, US
• Peter Pyka · Augsburg, DE
• Heike Wagner · Thierhaupten, DE

Key dates

• Filing date: Nov 23, 1993
• Grant date: May 23, 1995
• Expiry date: Nov 23, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B35/634
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In a ceramic or powder metallurgical molding compound which contains waxes as binder, the addition of an ethylene-vinyl acetate copolymer, an organic peroxide, an azo ester and an alcohol in combination with an extraction with a solvent leads to an improvement in the dimensional stability and the dewaxing of injection-molded shaped parts.