Monsanto Company

Noramtech Corporation

Robert P Langguth

Michael A Oberlander

Marvin M Crutchfield

James M Mayer

Thomas Christ

Kathie J Tryson

Edward A Casey

A solid, essentially anhydrous peroxygen bleaching and sanitizing composition which includes a peroxygen bleaching agent, an activator capable of forming a per-acid in the presence of oxygen, and an essentially anhydrous, non-reactive binding agent. The composition of this invention is stable in high humidity and cleans and sanitizes effectively in warm water as well as in hot water. The binding agent utilized in this invention is essentially anhydrous and non-reactive with oxygen. The melting point of the binding agent is preferably from about 35-85.degree. C., more preferably from about 45-70.degree. C., and most preferably from about 50-60.degree. C. The binding agent is present in the composition at a level of from about 25-65%, preferably from about 30-55%, and more preferably from about 35-45% by weight. In addition to these ingredients, optional functional ingredients can be utilized as necessary for specific cleaning purposes.

Anhydrous detergent/bleach composition and method of preparing same

Solid activator bodies for activating oxygen-based bleach at relatively low temperatures are provided which preferably include respective quantities of tetra acetyl ethylene diamine (TAED), phosphate sequestering agent, non-phosphate solidifying agent, surfactant and water. The activator bodies are readily dispersable in hot water to form dilute dispersions which can be added directly to cleaning equipment along with oxygen-based bleach. The activator enhances bleaching effectiveness and generates peracetic acid, a potential antimicrobial.

Method for forming solid detergent activator for use with oxygen bleaches

A solid oxygen-based bleach includes components such as aqueous hydrogen peroxide combined with a quantity of an alkali metal phosphate capable of combining with the hydrogen peroxide to form a peroxyhydrate salt. A sufficient amount of a solidifying agent for the peroxyhydrate salt is added to the mixture while still in its exothermically heated form, to effect solidification of the emulsion upon cooling of the product. The pH of the composition is controlled by addition of sequestering acid salts to maintain the pH within 4 to 9, and preferably 7 to 8. Anionic and/or nonionic surfactants may be added to the composition. The heated molten composition resulting from the exothermic reaction of the constituents is poured into tablet or cake forming molds and allowed to cool thus effecting solidification of the mass in each mold. The bleaching/detergent composition is useful in hot water warewashing, laundry, and hard surface cleaning applications.

Solid peroxyhydrate bleach/detergent composition and method of preparing

Aqueous compositions useful as disinfectant hard-surface and general purpose household cleaners comprise:

Disinfectant cleaning compositions

Aqueous compositions useful as disinfectant hard-surface cleaners comprise:

A fabric bleaching composition is provided which consists essentially of water and a bleach selected from the group consisting of disodium chloroimidodisulfate, dipotassium chloroimidodisulfate and mixtures thereof. The fabric bleaching composition can also contain a detergent, a buffering agent and other ingredients in a detergent formulation. The fabric bleaching composition is intermediate in strength between peroxide-type fabric bleaches and alkali metal hypochlorite fabric bleaches.

Chloroimide fabric bleaches

The alkali metal salts of imidobis sulfuric acid, particularly the trisodium salt, is effective in heavy duty laundry detergent compositions by reducing the damaging effects of chlorine-containing bleaches on the fabric while minimizing the loss in effectiveness of the bleach in removing stains from the soiled fabric. Accordingly, a detergent composition is provided which comprises, based on the total weight of the composition, at least 5 percent by weight of a surfactant selected from the group consisting of anionic, nonionic, zwitterionic, ampholytic and amphoteric surfactants, at least 5 percent by weight of a builder, and a bleach-damage mitigating amount of trisodium imidobis sulfate, tripotassium imidobis sulfate or mixtures thereof. A process for washing soiled fabrics is also provided comprising contacting the fabrics with a detergent, a chlorine-containing bleach, and a bleach-damage mitigating amount of the alkali metal imidobis sulfate.

Detergent composition containing alkali metal salts of imidobis sulfuric

Detergent compositions and processes utilizing same

Compositions comprising a mixture of from 60% to 95% by weight ##EQU1## (M is alkali metal or ammonium) and, correspondingly, 5% to 40% by weight sodium carbonate function as a synergistic detergency builder.

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Overland, MO, United States of America

Robert P Langguth