Solid-shaped detergent

Details Solid-shaped detergent Solid-shaped detergent

2006-06-27

2006-06-27

Douyon, Lorna M. (Department: 1751)

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

Solid, shaped macroscopic article or structure

C510S294000, C510S298000, C510S443000, C510S447000, C510S452000

Reexamination Certificate

active

07067469

ABSTRACT:
A solid-shaped detergent comprising particles for detergent, wherein the particles have a dissolution rate of 90% or more, under conditions where the particles are supplied in water at 5° C.; stirred for 60 seconds under the stirring conditions that 1 g of the particles are supplied to a 1-L beaker having an inner diameter of 105 mm which is charged with 1 L of hard water having 71.2 mg CaCO3/L, wherein a molar ratio of Ca/Mg is 7/3, and stirred with a stirring bar of 35 mm in length and 8 mm in diameter at a rotational speed of 800 rpm; and filtered with a standard sieve having a sieve-opening of 74 μm as defined by JIS Z 8801, wherein the dissolution rate of the particles is calculated by the Equation (1):in-line-formulae description="In-line Formulae" end="lead"?Dissolution Rate (%)=[1−(T/S)]×100,  (1)in-line-formulae description="In-line Formulae" end="tail"?wherein S is a weight (g) of the particles supplied; and T is a dry weight (g) of insoluble remnants of the particles remaining on the sieve when an aqueous solution prepared under the above stirring conditions is filtered with the sieve.

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