A two-component tablet for cleaning and disinfecting toilet flush tanks which adhere to the tank and will not be washed away and/or decomposed comprising extruded component A consisting essentially of (a) 10 to 50% by weight of an alkylbenzene sulfonate, (b) 0 to 40% by weight of inorganic alkali metal...http://www.google.fr/patents/US4683072?utm_source=gb-gplus-shareBrevet US4683072 - Two-component cleaner and disinfectant tablet
