Patent ID: 6365568
Filing Date: 2002-04-02
Classification: C11D

Abstract:
A process for manufacturing an improved solid cast alkaline composition, said process comprising the steps of:(i) reacting an alkali metal silicate with an alkali metal hydroxide of the formula MOH, wherein M is an alkali metal, in an aqueous environment to form a reaction product; and (ii) solidifying the reaction product in a mold wherein the reaction product is formed and solidified at room temperature without the addition of externally supplied heat and the reaction product solidifies without the use of external cooling; and wherein the relative amount of alkali metal silicate, alkali metal hydroxide and water incorporated into the composition are effective for producing a reaction product having about 20 to 50 parts water per 100 parts of a combination of the alkali metal silicate, the alkali metal hydroxide and water in the cast solid composition and an M2O:SiO2 ratio of about 2.5:1 to 4.0:1 and M is an alkali metal; and wherein said process does not result in the deactivation of desirable operative cleaning components.