Contitech Luftfedersysteme Gmbh

Contitech Deutschland Gmbh

Thorsten Leethaus

Christoph Zander

Mark Lindenberg

Claus-Lueder Mahnken

Dieter Borvitz

Jens Storre

Klaus Schobert

Barbara Passon-Wesseloh

Gerd Niklaus

Rene Sandmann

Hans-Harald Kielbasiewicz

Lars Bucksch

Anne Haake

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.

The invention relates to an article having a main body with elastic characteristics, in particular an air spring bellows, a metal-rubber element or a vibration damper. The article has a single-layer or multilayer main body having elastic properties, wherein the outer layer C has at least two laminas C/Cand each lamina is formed from an elastomer mixture, and wherein at least one layer D composed of a weave or loop-formed knit or loop-drawn knit has been embedded into this outer layer. This leads to further optimization of the fire-retardant properties.

Article, particularly an air spring bellows, a metal-rubber element, or a vibration damper

The invention relates to an article comprising a main body () that consists of a polymer material having elastic properties, particularly an air spring bellows (), a metal-rubber element or a vibration damper. In order for fire-retardant properties to be improved, the article is provided, partially or fully, with a cover () formed from at least one flat textile structure and/or at least one three-dimensional textile structure and/or at least one shrink film. The cover can be fire-retardant itself or can be equipped to be fire-retardant.

The invention relates to an article () having a main body composed of a polymeric material having elastic properties, in particular an air spring bellows (), a metal-rubber element or a vibration damper. In order to improve its fire-retardant and/or flame-retardant properties, the article has been provided partially or completely with a flock ().

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Eschershausen, Germany

Thorsten Leethaus