Patent · US Expired

Solid cast warewashing composition; encapsulated bleach source

US4933102A · kind A · utility

45Cited by
7References
37Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 12, 1989
Grant dateJun 12, 1990
Priority date
Expiry dateJan 12, 2009

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC11D17/0052
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

Solid cast detergent-containing articles are produced for use in automatic washing machines. A liquid detergent composition is cast into a mold where it is allowed to solidify. The cast detergent composition includes alkali metal metasilicate, alkali metal condensed phosphate, an encapsulated bleaching source, and water for hydration. The composition optionally further includes a dye, a perfume, a surfactant, a defoamer, an additional sequestering agent such as an alkali metal salt of a polyacrylic compound, a neutral soluble salt such as an alkali metal sulphate or an alkali metal chloride, an alkali compound such as an alkali metal hydroxide, an alkali metal sesquicarbonte, an alkali metal borate, or mixtures thereof.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.