Compositions – Electrolytes for electrical devices
Patent
1986-05-29
1988-03-08
Barr, Josephine L.
Compositions
Electrolytes for electrical devices
252135, 252156, 252174, 252DIG16, 25218635, 25218733, C11D 718, C11D 1700
Patent
active
047298456
ABSTRACT:
Detergents for dishwashing machines in the form of fused blocks containing alkali metal hydroxides, alkali metal silicates, and from 0.2 to 4% by weight of active chlorine donors having a hydrolysis constant of 3.times.10.sup.-4 or lower (preferably Na- or K-dichloroisocyanurate, Na-dichloroisocyanurate dihydrate, Na-monochloroamido-sulfonate or Na-N-chloro-p-toluene sulfonic acid amide). The process of making the fused blocks comprises heating metasilicate or waterglass solution with or without solid alkali metal hydroxide to 45.degree. to 48.degree. C., allowing the reaction temperature to rise to 60.degree. to 65.degree. C., adding the remaining ingredients including the active chlorine donor at 50.degree. to 65.degree. C., pouring the still liquid melt into flexible molds and allowing it to solidify into blocks therein. The detergent blocks of the invention have good stability to storage and a high dissolving rate in use.
REFERENCES:
patent: 2412819 (1946-12-01), MacMahon
patent: 3390092 (1968-06-01), Keast et al.
patent: 3816320 (1974-06-01), Corliss
Altenschoepfer Theodor
Jacobs Jochen
Jeschke Peter
Schumann Klaus
Barr Josephine L.
Grandmaison Real J.
Henkel Kommanditgesellschaft auf Aktien
Millson Jr. Henry E.
Szoke Ernest G.
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