Bayer Aktiengesellschaft

Bayer Faser Gmbh

Stephan Hutte

Hans-Joachim Wollweber

Rolf-Volker Meyer

Karin-Anke Heinrich

This invention relates to biodegradable coating compositions based on readily biodegradable mineral oils. The invention furthermore relates to the use of the coating compositions for dressing plastic mouldings, fibers or yarns. In particular, the coating compositions exhibit advantages during further processing of elastic polyurethane fibers finished with the coating compositions or fabrics produced therefrom.

Biodegradable coating compositions

The invention relates to polyurethane compositions and especially to elastic polyurethane fibers resulting therefrom which can be employed for swimwear in aqueous, chlorine-containing environments such as swimming pools, for example. The invention relates in particular to polyurethane compositions and especially to elastic polyurethane fibers resulting therefrom that contain hydrotalcites and/or other basic metal aluminium hydroxy compounds coated with polyorganosiloxane or with a mixture of polyorganosiloxane and polyorganohydrogensiloxane.

Chlorine-resistant elastane fibres

This invention relates to the protection of polyurethane compositions and especially of elastic polyurethane fibers produced therefrom against destruction or degradation by dry cleaning agents based on halogenated or non-halogenated hydrocarbons, in particular on tetrachloroethylene (perchlor), as are used for dry cleaning textiles. This invention in particular relates to the use of hydrotalcites and/or other metal aluminium hydroxy compounds which are coated with anionic surfactants, fatty acids, silanes, polyorganosiloxanes, polyorganohydrogensiloxanes or higher fatty acid esters or are uncoated as additives to polyurethane compositions and especially polyurethane fibers produced therefrom to provide protection against degradation or destruction by the hydrocarbons.

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Koln, Germany

Stephan Hutte