Multilayer detergent tablets for dishwashing machines

Details Multilayer detergent tablets for dishwashing machines Multilayer detergent tablets for dishwashing machines

1986-11-17

1989-05-09

Lieberman, Paul

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

252174, 25217421, 252DIG16, 252 91, 252 99, 25217413, C11D 736, C11D 1700, C11D 714, C11D 716

Patent

active

048287490

ABSTRACT:
A multilayer detergent tablet for dishwashing machines based on alkali metal metasilicates, pentaalkali metal triphosphates, active chlorine compound, and surfactant. The tablet comprises a first cold water-soluble layer of alkali metal metasilicate nonahydrate, pentaalkali metal triphosphate, and a low-foaming nonionic surfactant; and a second layer which dissolves rapidly at increasing water temperatures comprising alkali metal metasilicate, pentaalkali metal triphosphate, and an active chlorine compound.

REFERENCES:
patent: 2412819 (1946-12-01), MacMahon
patent: 3154494 (1964-10-01), Speak et al.
patent: 3390092 (1968-06-01), Keast et al.
patent: 4219436 (1980-08-01), Gromer et al.
patent: 4518516 (1985-05-01), Godard
patent: 4587031 (1986-05-01), Kruse et al.
Ritschel, "Die Tablette", Ed. Cantor, 1966, p. 313.

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