Ultra-light skiing boots
AssigneeBASF SE
InventorsOliver Steffen Henze, Denis Bouvier
Life of this patent
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Abstract
A composition contains a thermoplastic polyurethane (TPU-1), obtained or obtainable by reaction of an isocyanate composition (IZ) containing MDI with a polyol composition (PZ), and hollow glass microspheres. The polyol composition (PZ) contains at least one polyol (P1) selected from polytetrahydrofurans having an average molecular weight Mn in the range from 900 to 2,000 g/mol. The polyol composition (PZ) also contains a chain extender (KV1), selected from 1,2-ethandiol, 1,3-propanediol, 1,4-butanediol and 1,6-hexanediol. Ski shoes, preferably ski boots, particularly preferably the outer shell of a ski boot, can be based on such a thermoplastic polyurethane. Corresponding processes can be used for producing ski shoes.
Claims20
A process for producing a ski shoe or a part of a ski shoe, the process comprising:
- (A) providing a composition comprising
- (i) a thermoplastic polyurethane (TPU-1) obtained or obtainable by reaction of an isocyanate composition (IZ) comprising MDI with a polyol composition (PZ),
- wherein the polyol composition (PZ) comprises
- at least one polyol (P1), which is at least one polytetrahydrofuran having an average molecular weight Mn in the range from 1200 to 2000 g/mol, and
- a chain extender (KV1), selected from the group consisting of 1,2-ethandiol, 1,3-propanediol, 1,4-butanediol, and 1,6-hexanediol;
- and
- (ii) hollow glass microspheres;
- and
- (B) producing a ski shoe or a part of a ski shoe from the composition provided in (A).
Dependencies are inferred from the claim text.