US PATENT SUBCLASS 510 / 531
.~ Detergent builder composition

Current as of: June, 1999
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510 /   HD   CLEANING COMPOSITIONS FOR SOLID SURFACES, AUXILIARY COMPOSITIONS THEREFOR, OR PROCESSES OF PREPARING THE COMPOSITIONS

513  DF  AUXILIARY COMPOSITIONS FOR CLEANING, OR PROCESSES OF PREPARING (E.G., LAUNDERING AIDS, SUCH AS WRINKLE-REDUCING COMPOSITIONS, ETC.) {7}
531.~ Detergent builder composition {3}
532  DF  .~.~> Aluminum or boron containing metal silicate component (e.g., aluminosilicate, zeolite, etc.)
533  DF  .~.~> Polycarboxylic acid component, or salt thereof (e.g., nitrilotriacetic acid, polyacrylic acid, etc.)
534  DF  .~.~> Inorganic phosphorus containing component

DEFINITION

Classification: 510/531

Detergent builder composition:

(under subclass 513) Compositions specialized for use in conjunction with surfactants or other cleaning agents, such as alkaline substances, and which enhance the detergency of the surfactant or cleaning agent (e.g., by providing a water-softening effect by removing polyvalent metal ions, such as calcium).

(1) Note. See search notes under subclass 513 for other water-softening compositions.