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US 10,501,603 B2Granted
Flame-retardant thermoplastic polyurethane
AssigneeBASF SE
InventorsOliver Steffen Henze, Oliver Muehren, Hans Rudolph, Sabine Moeller, Aleksandra Lehmann
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Abstract
The present invention relates to compositions comprising at least one thermoplastic polyurethane, at least melamine cyanurate, at least one first phosphorus-containing flame retardant (F1) selected from the group consisting of derivatives of phosphoric acid and derivatives of phosphonic acid and at least one further phosphorus-containing flame retardant (F2) selected from the group consisting of derivatives of phosphinic acid, and to the use of such a composition for production of cable sheaths.
Claims14
A composition, comprising:
- at least one thermoplastic polyurethane;
- at least one melamine cyanurate;
- at least one first phosphorus-containing flame retardant (F1) selected from the group consisting of a phosphoric acid compound, a phosphonic acid compound, and derivatives thereof;
- at least one further phosphorus-containing flame retardant (F2) comprising a phosphinic acid compound or derivative thereof,
- wherein:
- the phosphorus-containing flame retardant (F1) comprises a phosphoric ester;
- the phosphorus-containing flame retardant (F2) comprises a phosphinate;
- and
- a proportion of the melamine cyanurate in the composition is from 25% to 40% by weight based on the overall composition.
6 more elements
Dependencies are inferred from the claim text.