Household appliance and cassette with disincrustant means, and disincrustant method in a household appliance

Removable cassette for a household appliance comprising a water circuit, said cassette forming a compartment in which is disposed a disincrustant agent (3), said cassette comprising a water inlet opening (122) and a water outlet opening (125), said cassette being characterized in that the disincrustant agent (3) is obtained by cross-linking or hardening of an organosilicic system having a disincrustant action comprising:

• an ingredient (A) consisting of a polyorganosiloxane composition, hardenable into a silicone elastomer at room temperature (23° C.) or under the effect of a temperature greater than room temperature, at least partially cross-linked or not, permeable to water vapor, and
• an ingredient (B), which is hydrophilic and osmotically active, consisting of an active disincrustant material (B1) taken alone or in association with a hydrophilic auxiliary agent (B2), dispersed in a homogenous manner within the silicone ingredient (A),
• with the particularly according to which the active disincrustant material is liberated over time, in an aqueous medium, out of the silicone ingredient (A) hardened into elastomer, at a substantially constant rate when the temperature in the compartment is substantially constant,
• system with disincrustant action comprises from 5 to 50% by weight of active ingredient (B) with respect to the weight of the totality (A)+(B).