초록 ▼

The present invention relates to a preparing device (1) for preparing an aqueous beverage by means of a beverage ingredient. The preparing device (1) comprises: an outflow nozzle (33) for dispensing prepared beverage; a preparation chamber (13, 16, 14) for at least partially preparing the beverage;

The present invention relates to a preparing device (1) for preparing an aqueous beverage by means of a beverage ingredient. The preparing device (1) comprises: an outflow nozzle (33) for dispensing prepared beverage; a preparation chamber (13, 16, 14) for at least partially preparing the beverage; a supply (12) line ending in the preparation chamber for the supply of water to the preparation chamber; an ingredient-dispensing system (7) for delivering the beverage ingredient to the preparation chamber; and an outflow path (36, 33) which extends from the preparation chamber to the outflow nozzle. The outflow nozzle (33) and/or the preparation chamber (13, 16, 14) and/or the outflow path (33, 36) are entirely or partly made from a polymer mixture which comprises (a) a self-lubricating, hydrophobic polymer or copolymer having a moisture absorption, determined in accordance with ASTM D 570 at a relative humidity of 50% and a temperature of 23° C., of less than 1% and (b) a homopolymer or a copolymer of a fluorinated ethylene.

대표청구항 ▼

1. A device for preparing an aqueous beverage by, comprising: (i) an outflow nozzle for dispensing a prepared beverage;(ii) a preparation chamber for at least partially preparing the beverage;(iii) a supply line connected to the preparation chamber for supplying an aqueous solution to the preparatio

1. A device for preparing an aqueous beverage by, comprising: (i) an outflow nozzle for dispensing a prepared beverage;(ii) a preparation chamber for at least partially preparing the beverage;(iii) a supply line connected to the preparation chamber for supplying an aqueous solution to the preparation chamber;(iv) an ingredient-dispensing system for delivering a beverage ingredient to the preparation chamber; and(v) an outflow path extending from the preparation chamber to the outflow nozzle; in which at least a portion of the outflow nozzle, the preparation chamber, and/or the outflow path, comprises a polymer mixture which comprises (a) 70-95% by weight of a polyoxymethylene and (b) 5-30% by weight of a polytetrafluoroethylene. 2. The device according to claim 1, in which the preparation chamber comprises a mixing chamber comprising a rotor. 3. The device according to claim 2, in which at least a portion of the rotor comprises a polymer mixture which comprises (a) a self-lubricating hydrophobic polymer or copolymer with a moisture absorption, determined in accordance with ASTM D 570 at a relative humidity of 50% and a temperature of 23° C., of less than 1%, and (b) a homopolymer or a copolymer of a fluorinated ethylene. 4. The device according to claim 2, in which the fluorinated ethylene has the formula CXY═CXY, wherein X and Y are independently selected from the group consisting of hydrogen, fluorine and chlorine. 5. The device according to claim 1, in which the aqueous solution comprises an instant ingredient. 6. The device according to claim 5, in which the instant ingredient is an instant powder or an instant liquid. 7. The device according to claim 1, in which the entire outflow nozzle, the preparation chamber, and/or the outflow path, comprises the polymer mixture. 8. The device according to claim 1, in which at least a portion of the outflow nozzle, the preparation chamber, and/or the outflow path is coated with the polymer mixture. 9. A method of preventing moisture and powdery material from adhering to a part of the device of claim 1, the method comprising coating at least a portion of a part of the device with a polymer mixture comprising (a) self-lubricating hydrophobic polymer or copolymer with a moisture absorption, determined in accordance with ASTM D 570 at a relative humidity of 50% and a temperature of 23° C., of less than 1% and (b) a homopolymer or a copolymer of a fluorinated ethylene. 10. The method according to claim 9, in which the part supplies or holds an aqueous liquid. 11. The method according to claim 9, in which the part is a storage container, an extractor hood, an outlet, a duct from the outlet, and/or a mixing chamber.