Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1989-10-06
1991-04-30
Lieberman, Paul
Compositions
Water-softening or purifying or scale-inhibiting agents
252 86, 252 95, 252 99, 252135, 25217425, 252DIG14, 252139, 252523, 134 17, 134 31, 134 19, C11D 308, C11D 754, B08B 702, B08B 500
Patent
active
050116223
ABSTRACT:
In non-aqueous liquid cleaning products compositions comprising dispersed particles of aluminosilicate builder, components sensitive to decomposition catalyzed by aluminosilicate, such as bleach precursors, can be protected if the aluminosilicate particles are deactivated by pre-treatment with an ammonium or substituted ammonium compound, followed by a heating step to reduce the water level of the aluminosilicate.
REFERENCES:
patent: 4264466 (1981-04-01), Carleton et al.
patent: 4690771 (1987-09-01), Ouhadi et al.
patent: 4743394 (1988-05-01), Kaufmann et al.
patent: 4769168 (1988-09-01), Ouhadi et al.
Breck et al., Journal of the Amer. Chem. Soc., 78(23): 5963-5971 (1956), Especially Figure 11 on p. 5969.
Koatz Ronald A.
Lever Brothers Company Division of Conopco, Inc.
Lieberman Paul
McCarthy Kevin
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