Basf Aktiengesellschaft

Basf Se Corporation

Thomas Flug

Hauke Malz

Oliver Steffen Henze

Oliver Muehren

Alfons Bertels

Hans Rudolph

Sabine Conrad

Christian Beckmann

Dietmar Meier

Sylvia Rybicki

Martin Kreyenschmidt

Dieter Rodewald

Martin Vallo

Karin Scheffer

Markus Kamieth

Peter Böhme

Ansgar Frericks

Jörn Duwenhorst

The invention relates to a flame-retardant thermoplastic polyurethane based on at least one diisocyanate and on at least one substance reactive toward isocyanate, and preferably on at least one chain extender, and also optionally on at least one catalyst, and comprising at least one flame retardant, and also optionally additives and/or auxiliaries, where one flame retardant is a metal hydroxide at least to some extent surrounded by a coating, the material comprises, as further flame retardant, at least one phosphorus-containing flame retardant which is a derivative of phosphoric acid, phosphonic acid, and/or phosphinic acid and the material further comprises hydrotalcite and/or phyllosilicate, and also to an associated production process and the use.

Flame-retardant thermoplastic polyurethane comprising coated metal hydroxides, phosphorus-containing flame retardants and/or hydrotalcite or phyllosilicate

The invention relates to a flame-retardant thermoplastic polyurethane based on at least one diisocyanate and on at least one substance reactive toward isocyanate, and preferably on at least one chain extender, and also optionally on at least one catalyst, and comprising at least one flame retardant, and also optionally additives and/or auxiliaries, where one flame retardant is a metal hydroxide at least to some extent surrounded by a coating, and the metal hydroxide is aluminum hydroxide, aluminum oxide hydroxide, or a mixture of said hydroxides, and also to an associated production process and use.

Flame-retardant thermoplastic polyurethane comprising coated metal hydroxides based on aluminum

Thermoplastic polyurethanes which have a hardness of from 50 Shore A to 80 Shore A and are based on (b) polyester diols, wherein a polyester diol (b1) based on butane-1,4-diol and at least one further diol having at least 5 carbon atoms and a polyester diol (b2) based on butane-1,4-diol and at least one further diol having two or three carbon atoms are present as (b) polyester diols.

Thermoplastic polyurethanes

Mixtures comprising amorphous phenolic stabilisers and at least one reducing agent.

Mixtures comprising phenolic stabilisers and a reducing agent

Plastics comprise sterically hindered, esterified amine (I) which contains less than 100 ppm, based on the weight of (I), of titanium.

Plastic, particularly a sterically hindered esterified amine containing polyurethane

The invention relates to stabilizers containing at least two phenolic groups bonded to one another via a connecting radical (II) which is a polyol with a number-average molecular weight of from 75&#xd7;F g/mol to 250&#xd7;F g/mol, preferably from 100&#xd7;F g/mol to 200&#xd7;F g/mol, in particular from 100&#xd7;F g/mol to 150&#xd7;F g/mol, where the term F is the number of phenolic groups in the molecule.

Stabilizers, in particular for thermoplastic polyurethanes

Catalysts contain, as structural units, at least one tertiary amino group and at least one group which, after its decomposition, is capable of complexing or protonating the tertiary amino group.

Growing community of inventors

Wagenfeld, Germany

Thomas Flug