Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1997-02-11
1999-01-26
Hertzog, Ardith
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
510445, 510447, 510448, 510451, 510476, 510495, C11D 1700, C11D 124, C11D 337, C11D 340
Patent
active
058638768
ABSTRACT:
Disclosed herein is a toilet cleansing block containing a polyacrylate polymer and a lauryl benzene sulfonate salt surfactant. The block is essentially free of other polymers that sequester ions. The block is for immersion in toilet tanks, and inhibits toilet bowl ring and stain formation, particularly those caused by iron oxide.
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Two pages of National Starch ads entitled "Versaflex 157" and Versaflex 207, undated, admitted prior art.
Lance-Gomez Edward T.
Veltman Jerome J.
Hertzog Ardith
S. C. Johnson & Son Inc.
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