FLAME-RETARDED THERMOPLASTIC POLYURETHANE

• Main Authors: HENZE, Oliver Steffen, SPREEN, Rebecca, LANGE, Tanja, MUEHREN, Oliver
• Format: Patent
• Language: English; French
• Published: 24.03.2022
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; CONDUCTORS; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The present invention is directed to a composition comprising a thermoplastic polyurethane, a first flame retardant (F1) selected from the group consisting of ammonium phosphate and am- monium polyphosphates and a phosphorus-containing flame retardant (F2) selected from the group consisting of derivatives of phosphinic acid, derivatives of phosphonic acid and deriva- tives of phosphoric acid, as well as the use of a composition according to the present invention for the production of cable sheathings. La présente invention concerne une composition comprenant un polyuréthane thermoplastique, un premier ignifuge (F1) choisi dans le groupe constitué par le phosphate d'ammonium et des polyphosphates d'ammonium et un ignifuge contenant du phosphore (F2) choisi dans le groupe constitué par des dérivés d'acide phosphinique, des dérivés d'acide phosphonique et des dérivés d'acide phosphorique, ainsi que l'utilisation d'une composition selon la présente invention pour la production de gaines de câbles.