Patent ID: 7893013
Filing Date: 2011-02-22
Classification: C11D

Abstract:
1. Article for use in a dishwashing machine, which comprises a water soluble zinc containing glass or ceramic composition which is at least partially in the form of a shaped body, effective to reduce corrosion of glassware, and a surfactant containing composition, wherein the amount of the glass or ceramic composition is within the range of 5 to 95 wt.% and the amount of the surfactant is in the range of 5 to 95 wt.%, both percentages being based on the weight of the article, and the ratio of the water-soluble glass/ceramic composition to surfactant is 3:1, wherein the article is held in a container having perforated walls to allow a controlled circulation of wash liquor in and out of the container, and wherein the container comprises compartments to hold the glass or ceramic composition and the surfactant composition separately.