Stable slurry-coated sodium percarbonate, process for producing

Details Stable slurry-coated sodium percarbonate, process for producing Stable slurry-coated sodium percarbonate, process for producing

1993-04-07

1994-07-26

Albrecht, Dennis

Compositions

Electrolytes for electrical devices

252 891, 252102, 25217413, 25217414, 25217416, 25217424, 25218627, 25218632, 4234152, C11D 304, C11D 3395, C11D 1100, C11D 1706

Patent

active

053325184

ABSTRACT:
A stable sodium percarbonate having excellent stability when incorporated into a bleaching agent composition or a detergent composition, particularly a zeolite-containing detergent composition. The stable sodium percarbonate is produced by a process which comprises a step of treating sodium percarbonate on the surface with at least one coating agent selected from the group (A) consisting of boric acids, borates and alkali metal silicates and at least one coating agent selected from the group (B) consisting of carbonates, hydrogencarbonates and sulfates, and at least one coating agent selected from the group consisting of coating agents belonging to groups (A) and (B) being present in the form of an aqueous coating slurry thereof.

REFERENCES:
patent: 2380620 (1945-07-01), Walters
patent: 3640885 (1972-02-01), Rhees
patent: 3883640 (1975-05-01), Smart
patent: 4075116 (1978-02-01), Mesaros
patent: 4321301 (1982-03-01), Brichard
patent: 4526698 (1985-07-01), Kuroda
patent: 5194176 (1993-03-01), Copenhafer
Chemical Abstracts, vol. 102, Mar. 25, 1985, No. 12, pp. 1 and 86.

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