Elastomeric body for vibration damping
AssigneeCarl Freudenberg KG
InventorsMichael Gutsch, Martin Heber, Bjoern Hellbach, Daniela Beyer, Thomas Schnetz
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Abstract
An elastomeric body for vibration damping and/or suspension, has a base body and a flame-retarding coating which covers at least one section of the base body, wherein the flame-retarding coating has at least two intumescent fire protection systems and the first fire protection system contains expandable graphite which comprises at least a first fraction with an average grain size of more than 180 μm and at least a second fraction with an average grain size of less than 180 μm, and the second fire protection system forms a support structure in the expanded state, which structure at least partially fixes the expanded graphite in the expanded state.
Claims22
An elastomeric body for vibration damping and/or springing, the body comprising:
- a main body;
- and
- a flame-retardant coating which covers at least part of the main body, the flame-retardant coating including a first intumescent flame retardant system and a second intumescent flame retardant system,
- wherein the first flame retardant system includes expandable graphite including a first fraction with average grain size more than 180 μm,
- wherein the first flame retardant system includes expandable graphite including a second fraction with average grain size less than 180 μm, and
- wherein, in an expanded state, the second flame retardant system forms a supportive structure configured to at least partially fix the expandable graphite in the expanded state.
Dependencies are inferred from the claim text.