Evonik Roehm Gmbh

Evonik Operations Gmbh

Evonik Rohm Gmbh

Mathias Hempler

Kay Bernhard

Thomas Richter

Werner Geyer

Florian Becker

Thomas Barthel

Torsten Jahn

Felix Goldmann

Tim Denk

Ulrich Schmidt

The present invention relates to a method for cutting rigid foams, especially slabstock P(M)I foams. A method is provided here, by means of which it is possible to cut these rigid foams even in relatively high layer thicknesses of, for example, more than 3 mm, without material loss, which is produced in relevant amounts, for example, in the course of sawing as a result of the sawdust formed.

Splitting of thick hard-foam plates

The invention relates to compounds for producing polymethacrylimide foam materials (PMI foams) with particularly good mechanical properties, in particular with a particularly advantageous elongation at tear. The invention further relates to methods for producing, processing, and using said foam materials. In particular, the invention relates to novel materials, the propensity of which to form tears is clearly reduced in comparison to the prior art. This is tantamount to an elongation at tear that is higher in comparison to the prior art.

PMI foams with improved mechanical properties, in particular with increased elongation at tear

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Freigericht, Germany

Mathias Hempler