Contitech Luftfedersysteme Gmbh

Contitech Elastomer-Beschichtungen Gmbh

Barbara Passon-Wesseloh

Dieter Borvitz

Thorsten Leethaus

Jens Storre

Christoph Zander

Mark Lindenberg

Klaus Schobert

Jens Löschner

Bernd Stampfer

Gabriele Rother

Anne Haake

Jürgen Fuchs

Gabriele Lindentahl

Rodrigo Pinto Maia

The invention relates to an article having a single- or multi-layered main body having elastic properties, in particular an air spring bellows, a metal-rubber element or a vibration damper. In order to improve its flame retardant properties, the main body of the article consists of or contains at least one layer D constructed from a rubber mixture which is free from halogen-containing flame retardants and contains at least one carbon black having a BET surface area according to DIN-ISO 9277 between 35 and 140 m/g and an oil absorption number (OAN) according to ISO 4656 between 70 and 140 ml/100 g and a first aluminum trihydrate (ATH_1) and at least a further aluminum trihydrate (ATH_2), wherein the first aluminum trihydrate (ATH_1) and the further aluminum trihydrate (ATH_2) each have a different particle size.

Article, in particular air spring bellows, a metal-rubber element, or a vibration damper

The invention relates to an article having a single- or multi-layered main body having elastic properties, in particular an air spring bellows, a metal-rubber element or a vibration damper. In order to improve its flame retardant properties, the main body of the article consists of or contains at least one layer D constructed from a rubber mixture which is free from halogen-containing flame retardants and contains a first aluminum trihydrate (ATH_1) and at least one further aluminum trihydrate (ATH_2) and at least one amorphous silicic acid having spherical particle geometry, wherein the first aluminum trihydrate (ATH_1) and the further aluminum trihydrate (ATH_2) each have a different particle size.

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Goettingen, Germany

Barbara Passon-Wesseloh