Evonik Roehm Gmbh

Cps Gmbh

Evonik Rohm Gmbh

Peter Battenhausen

Klaus Schultes

Ursula Golchert

Werner Hoess

Uwe Numrich

Claude Guenanten

Stefan Nau

Guenther Dickhaut

Ernst Becker

Adalbert Loidl

Günther Dickhaut

Werner Höss

Sven Strohkark

The invention describes transparent plastics mixtures having low-temperature impact resistance composed of a thermoplastic polyurethane (TPU) and of an impact-modified poly(meth)acrylate (PMMA).

Transparent TPU (thermoplastic polyurethanes)/PMMA (polymethyl (meth) acrylate) blends with improved low-temperature impact resistance

The invention relates to the use of polyalkyl(meth)acrylate bead polymers with an average particle size Vthat ranges between 30 and 70 &#x3bc;m for improving the stress cracking resistance of moulding materials containing polyalkyl(meth)acrylate. The invention also relates to moulding materials comprising: a) at least 50 wt. % of an impact resistance modifying agent, which contains at least one polyalkyl(meth)acrylate phase; b) at least 8 wt. % of a polyalkyl(meth)acrylate bead polymer with an average particle size Vthat ranges between 30 and 70 &#x3bc;m; and c) between 0 and 42 wt. % of a polyalkyl(meth)acrylate with a molecular weight ranging between 20,000 and 350,000 g/mol, whereby the wt. % of the components a) to c) amounts to 100 wt. %, and to moulded bodies that can be obtained from said materials.

Use of polyalkyl(meth)acrylate bead polymers and moulding material for producing extruded moulded parts with a matt surface

The present invention relates to a plastics mixture comprising at least one thermoplastic polyurethane A) and at least one impact-modified poly(meth)acrylate B), where the impact-modified poly(meth)acrylate comprises a hard phase whose glass transition temperature is at least 70&#xb0; C. and a tough phase whose glass transition temperature is at most &#x2212;10&#xb0; C., the average particle size of the tough phase is at most 130 nm, and at least a portion of the tough phase has covalent linkage to the hard phase.

Plastic mixtures comprising thermoplastic polyurethane (TPU) and impact-resistant poly(meth)acrylate

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Brachttal-Udenhain, Germany

Peter Battenhausen