Patented Aug 19Yr9ce 2,607,738

Es PAT ENT OFFICE UNITED STAT 2,607,738. BLEACHING, STERILIZING, DISINFECTING, AND DETERGING COMPOSITIONS Edgar E. Hardy, Anniston, Ala., assignor to Mon santo Chemical Company, St. Louis, Mo., a corn poration of Delaware No Drawing. Application June 25, 1948, Serial No. 35,297 12 Claims. (C. 252-99) 1. 2 The present invention relates to bleaching, an equally broad range and thus may constitute sterilizing, disinfectant and detergent composi a major or minor proportion of the final composi tions containing as the active constituent tri tion depending upon its ultimate use. chlorocyanuric acid. The new compositions are characterized by a An object of the invention is to provide com 5 high degree of stability when dry and may be positions containing trichlorocyanuric acid in stored for long periods of time and/or transported combination with alkaline salts, particularly alka over considerable distances without substantial line phosphates, which are stable under ordinary decomposition. When dissolved in water, the in conditions of storage and transportation and gredients of the mixture apparently react together which, when dissolved in water, yield solutions O to yield hypochlorite chlorine which is responsible suitable for bleaching, sterilizing and disinfecting. for its efficient oxidizing, bleaching, disinfecting Another object of the invention is to provide a and sterilizing action. disinfecting detergent for use in cleaning of con The new compositions are preferably con tainers, particularly metal cans used in the bulk pounded and marketed as dry powders containing transport of milk, cream and other milk products. 5 the various ingredients intimately and homogene An additional object of the invention is to pro ously blended together so that a definite weight of vide a detergent for use in hospitals or similar material may be used to provide a solution of institutions, as well as in hotels and restaurants definite concentration. It is also within the scope for dishwashing and other purposes. of the present invention to supply these mixtures A further object is to provide a novel composi 20 in the form of tablets, Sticks, cubes Or agglomer tion of matter which is a highly efficient denture ates. - cleanser. For a more complete understanding of the pres Other objects and advantages of the invention ent invention, reference is made to the following will be apparent to those skilled in the art as the illustrative examples. . . . - description proceeds. 25 To the accomplishment of the foregoing and Ecample I related ends, the invention comprises the features 8.5 parts of trichlorocyanuric acid (42.2% Cl), hereinafter disclosed, and particularly pointed 20 parts of sodium silicate powder (3.2SiO2.Na2O), out in the claims, the following description setting 40 parts of trisodium phosphate and 31.5 parts of forth in some detail some of the various forms in sodium carbonate are intimately and unifornly which the principle of the invention may be 30 blended together to provide a dry stable mixture applied. containing about 3.5% by weight of active chlo In accordance with the present invention, novel rine. This composition is adapted for use as a compositions of matter having oxidizing, bleach disinfecting detergent for cleaning containers, ing, detergent and disinfecting properties are pre particularly metal cans used in the storage and pared by intimately and uniformly mixing to 35 transport of milk, cream and other dairy products. gether in the substantially dry state trichloro Eacample II cyanuric acid and alkaline salts such as sodium carbonate, sodium borate, sodium silicate, tri 8.5 parts of trichlorocyanuric acid (42.2%. Cl), Sodium phosphate, tetrasodium pyrophosphate, 40 parts of tetrasodium pyrophosphate, 15 parts sodium triphosphate or mixtures of these. In 40 of sodium silicate powder (3.2 SiO2.Na2O), 30 addition to these two basic ingredients, wetting parts of sodium sesquicarbonate and 6.5 parts of agents, Synthetic detergents generally, soaps, sodium dodecylbenzene sulfonate are mixed to fillers, abrasives and water softening agents of gether to provide a dry stable free flowing disin the inorganic or organic type may be incorporated fecting detergent. This product is eminently 45 suitable for use in hospitals as well as hotels and in the composition to impart special properties. restaurants for dishwashing and other purposes The proportions of the several ingredients may and in the beverage, food and dairy industries for be varied over a wide range depending upon the washing and sterilizing bottles and containers of available chlorine desired and also the application various types. : ...... involved. For example, trichlorocyanuric acid 50 may be employed in amounts as low as a fraction Eacample III. of one per cent in the preparation of general The following materials, when mixed together surgical antiseptics and as high as ninety per cent in the proportions indicated, provide a dry stable or more. when a powerful bleaching agent is de composition which serves as a highly effective sired. The other ingredients may be varied over 55 denture cleanser.

2,607,738 3 - 4. Per cent by chlorine in accordance with the following Trichlorocyanuric acid (42.2% Cl) ------1.0 equation: Sodium lauryl Sulfate------5.0 Trisodium hydrogen pyrophosphate------94.0 Ecample IV: , , , 9.52 parts of trichlorocyanuric acid, 41.98 parts '... . ." of trisodium phosphate and 2.5 parts. Of Starch or other suitable binder are uniformly blended to together to form a dry stable mixture which is then pressed into cubes suitable for use as a household bleach...... As hereinbefore indicated, the proportions of - the various ingredients of the compositions of the present invention may be varied widely, but in. general highly satisfactory results are obtainable. with from about 0.5% to about 40% by Weight of - v trichlorocyanuric acid. However, it is preferred wherein M represents sodium or potassium. to use this material in an amount corresponding In View of the above equation, it is evident that to about 1% to about 26% by weight, or stated 90 differently, in an amount supplying, from about 0.4% to about 10.5% by weight of active chlorine. The salts employed in compounding: the new compositions are alkaline salts such as: alkali metal and ammonium carbonates, phosphates, borates or silicates, etc. which salts are used in It should be understood that the present in such amounts as will give to the final solution the vention is not limited to the specific compositions desired pH. Thus, the proportions of these ma hereinbefore disclosed, but that it embrac terials are not; critical but may fluctuate between equivalent compositions coming within the wide limits depending upon the ultimate use of 30 of the appended cla the composition. ::, ; ...... What I claim is: The wetting agents and/or synthetic deter 1. A substantially dry st gents which are used in making the new com matter consisting essentially o positions are sulfónated products such as sul acid, and a water sp lkaline compoundse fonated hydrocarbons, sulfated higher alcohols 35 lected from the group consisting of alkali metal and sulfonated oils. Illustrative examples of and ammonium salts, said trichlorocyanuric acid these are sodium salts of long chain alkylsulfates being employed in an amount varying.from 0.5% such as sodium lauryl-sulfate, sodium octadecyl to 90% by weight. sulfate and sodium oleyl sulfate; sodium salts of 2. A substanti y:.C. stable. alkyl naphthalene sulfonic acids available com 40 matter consisting essentially of trichlorocyanuric mercially under the name: Nekals, Perminals, acid and trisodium phosphate, said trichloro Merpentine, Alkanol B, Oranit, Neomerpin, cyanuric acid being employed in an amount Erkalin and Alkanol SA; sodium salts of sul ing from 0.5% to 90% by wei fonated abietenes such as sodium abietenesul 3. A substantially dry st: 1. - ... -- of fonate; sodium salts of amide sulfonates such as 45 matter-consisting, essentially of trichlorocyanuric Igepon T. (CitH3CON CHASO3Na); sodium acid and tetrasodium pyrophosphate; said tri salts of alkylated benzene sulfonic acids, in which chlorocyanuric acid being employed in an amount the alkyl group contains not less than 8 and not varying from 0.5% to 90% by weight: . . . . . more than 18 carbon atoms, especially the decyl, 4.A. Substantially dry. stable composition of dodecyl and tetradecyl benzene sulfonic acids; 50 matter consisting essentially of trichlorocyanuric the sodium salts of the alkyl esters of sulfoben acid and Sodium triphosphate, said trichloro zoic or salicylic acid, in which the alkyl group cyanuric acid being employed in an amount vary may be either octyl, decyl, dodecyl, tetradecyl, to 90% - :- hexadecyl or octadecyl or mixtures thereof (Lorol); sodium salts of sulfonated mineral oils - such as Petrosol and Petromor; sodium salts of sulfosuccinic esters such as sodium dioctylsul mixture of from about 1% to about 26c by fosuccinateOT; and Turkey marketed red oil. under In placethe nameof the Aerosolsodium weight of trichlorocyanuric acid and a dry water: salts of the above wetting agents, the correspond 60 soluble, alkaline compound selected from the ing potassium salts may be used EP consisting of alkali metal, and ammonium well as the Sa. . - . , ...... '...... thereof.amine and Of other all the well wetting known agents water listedsoluble above, salts sodium dodecyl benzene sulfonate is preferred. entially of trichlorocyanuric - . The...... amount. . . . . of we agent and/or synthetic acid and trisodium-phosphate, said: composition, detergent used may be varied widely, but in-gen when treated with water, yielding a solution hav eral from about 1% to 10% by weight yields satis isinfecting, sterilizing factory results. However, larger or smaller, pro trichlorocyanuric portions may be used as desired. punt supplying, from Trichlorocyanuric acid is prepared by dissolv-. 70 by weight of active. ing: cyanuric acid in the theoretical quantity of a . 5% solution of caustic potash or soda and t ing the resulting solution with chlorine until three atoms of the alkali have been substituted 75

2,607,738 5 6 lution having oxidizing, bleaching, disinfecting, Sodium phosphate, said trichlorocyanuric acid sterilizing and similar properties, said trichloro being employed in an amount varying from about cyanuric acid being used in an amount Supplying 1% to about 26% by weight. from about 0.4% to about 10.5% by weight of 11. A substantially dry stable composition of active chlorine. 5 matter consisting essentially of trichlorocyanuric 8. A substantially dry stable composition of acid, sodium lauryl Sulfate and tetrasodium pyro matter consisting essentially of trichlorocyanuric phosphate, Said trichlorocyanuric acid being emi acid and sodium triphosphate, said composition, ployed in an amount varying from about 1% to When treated with Water, yielding a Solution about 26% by weight. having oxidizing, bleaching, disinfecting, steriliz 0 12. A Substantially dry stable composition of ing and similar properties, said trichlorocyanuric matter consisting essentially of trichlorocyanuric acid being used in an amount Supplying from acid, sodium dodecyl sulfobenzoate and sodium about 0.4% to about 10.5% by weight of active triphosphate, said trichlorocyanuric acid being chlorine. employed in an amount varying from about 1% 9. A substantially dry stable composition of to about 26% by weight. matter consisting essentially of trichlorocyanuric 5 acid, a wetting agent selected from the group. EDGAR. E. HARDY. consisting of sulfonated and Sulfated organic compounds and a water soluble alkaline com REFERENCES CITED pound selected from the group consisting of 20 The following references are of record in the alkali metal and ammonium Salts, Said trichloro file of this patent: cyanuric acid being employed in amount vary ing from about 1% to about 26% by weight. UNITED STATES PATENTS 10. A substantially dry stable composition of Number Name Date matter consisting essentially of trichlorocyanuric 25 2,184,886 Muskat et al. ------Dec. 26, 1939

acid, Sodium dodecyl benzene Sulfonate and tri 2,263,948 Halvorson et al. ---- Nov. 25, 1941