Block-form cleaners for flush toilets

Details Block-form cleaners for flush toilets Block-form cleaners for flush toilets

1996-07-30

1998-06-02

Lieberman, Paul

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

For cleaning a specific substrate or removing a specific...

510101, 510192, 510367, 510382, 510392, 510438, 510439, 510440, 510441, 510445, 510446, 510447, 510451, 264148, 26417711, 264241, C11D 1700, C11D 1100

Patent

active

057599742

ABSTRACT:
Block-form cleaners for flush toilets which consist of at least two masses of different composition, one of the masses being at least partly surrounded by the other mass(es) and the surrounded mass containing an active substance in a concentration at least 1.3 times higher than in the surrounding mass. This distribution ensures that the active substance is more uniformly released over the useful life of the cleaning block.

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patent: 4913832 (1990-04-01), Kruse et al.
patent: 5571519 (1996-11-01), Synodis et al.

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