Vulcanizable rubber mixes

US6750275B2 · kind B2 · utility

Assignee

• Rhein Chemie Rheinau GmbH · DE

Inventors

• Thomas Früh · Ludwigshafen, DE
• Ludger Heiliger · Leverkusen, DE
• Thomas Kleiner · Odenthal, DE
• Hermann-Josef Weidenhaupt · Pulheim, DE
• Robert Hans Schuster · Hannover, DE
• Joachim Kiesekamp · Schkopau, DE

Key dates

• Filing date: Jan 18, 2001
• Grant date: Jun 15, 2004
• Expiry date: Dec 1, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5398
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to vulcanizable rubber mixes which, apart from the rubbers, contain O,O-bis-(alkyl)-dithiophosphoric acid polysulfides and primary and/or secondary amines, which are characterized in that they may be vulcanized without release of nitrosamines with a high crosslink density and a high proportion of short sulfur bridges.