Covestro Deutschland Ag

Covestro Intellectual Property Gmbh & Co. Kg

Jochen Norwig

Christoph Gürtler

Christian Wamprecht

Hartmut Nefzger

Jörg Hofmann

Aurel Wolf

Klaus Lorenz

Kai Laemmerhold

Jens Langanke

Thomas Gries

Gunnar Seide

Pavan Manvi

Volker Marker

Harald Knaup

Philipp Nicholas Wagner

Florian Kessler

Philipp Nicolas Wagner

Pavan Kumar Manvi

The invention relates to melt spun multifilaments based on thermoplastic polyurethane, their production and the use of said melt spun multifilaments to produce technical textiles and clothing such as socks, stockings, compression textiles like medical bandage, surgical hose, orthopedic elastic bandage, sport textiles, underwear etc.

Melt spun multifilaments based on thermoplastic polyurethane, their production and use

The present invention describes a process for producing an elastomer, preferably a polyurethane-containing elastomer, by reacting a polyol component (A) comprising at least one polyether carbonate polyol (A-1) containing carbon-carbon double bonds with a component (B) which is reactive with OH groups and contains at least one compound reactive toward OH groups, preferably an isocyanate component (B-1) containing NCO groups, in the presence of a free-radical initiator (C), preferably at least one peroxide (C-1), and optionally a catalyst (D), where the molar ratio of the OH-reactive groups of component (B) reactive with groups, to the OH groups of the polyol component (A) containing carbon-carbon double bonds, is greater than 1.0. It further relates to elastomers obtainable by such a process, preferably polyurethane elastomers, the use thereof, and two-component systems for production of elastomers, preferably polyurethane elastomers.

Process for producing elastomers

Growing community of inventors

Leverkusen, Germany

Jochen Norwig