Nitrile rubber mixtures with a low tendency towards mold contamination

US6929769B2 · kind B2 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Roland Parg · Leverkusen, DE
• Hans Magg · Bensberg, DE
• Luigi Marinelli · Sambuceto, IT
• Jurgen Wassen · Leverkusen, DE
• Peter Wendling · Leverkusen, DE
• Hans-Rafael Winkelbach · Cologne, DE
• Christiane Oppenheimer-Stix · Neuss, DE
• Hans Strauch · Dormagen, DE
• Jean-Pierre Lambert · Saint-Avertin, FR

Key dates

• Filing date: Jan 16, 2003
• Grant date: Aug 16, 2005
• Expiry date: Jun 3, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29K2105/0005
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to a process for reducing mold contamination in an injection molding process by using a mixture of nitrile rubbers, in the range of from 0.1-0.5 wt. % of fatty acids and optionally further additives.