Casting investment compounds

US5520726A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Peter Schwabe · Leverkusen, DE
• Martin Grunwald · Emmerting, DE
• Lothar Puppe · Burscheid, DE

Key dates

• Filing date: Jun 2, 1994
• Grant date: May 28, 1996
• Expiry date: Jun 2, 2014

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22C1/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present invention relates to investment compounds containing zeolites and to models and moulds made from these. The investment compounds according to the invention are used in metal casting, preferably in the preparation of precision castings.