Granular detergent compositions built with 2,2'-oxodisuccinate a

Details Granular detergent compositions built with 2,2'-oxodisuccinate a Granular detergent compositions built with 2,2'-oxodisuccinate a

1990-11-20

1992-04-14

Lieberman, Paul

Compositions

Water-softening or purifying or scale-inhibiting agents

25217417, 25217419, 25217425, 252174, 252DIG11, C11D 322, C11D 918, C11D 1100, C11D 1706

Patent

active

051045680

ABSTRACT:
2,2'-oxodisuccinate detergent builder salts (ODS), especially tetrasodium 2,2'-oxodisuccinate, are difficult to dry and tend to pick up water due to the hygroscopicity of the 2,2'-oxodisuccinate: yet the present invention secures improved granular built detergent compositions comprising ODS by an aqueous ODS/zeolite coagglomeration process, the resulting agglomerate being remarkably stable and nonhygroscopic. Other detergent ingredients, such as perborate bleach, surfactants and the like, can be dry-mixed with the agglomerates to form fully-formulated granular detergents. The invention encompasses the agglomeration process, the ODS agglomerates and granular detergent compositions containing same.

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