Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/395—Bleaching agents
  • C11D3/3956—Liquid compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/04—Carboxylic acids or salts thereof
  • C11D1/06—Ether- or thioether carboxylic acids
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
  • C11D1/146—Sulfuric acid esters
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/29—Sulfates of polyoxyalkylene ethers

Definitions

• ABSTRACT A liquid detergent bleaching composition
• an alkaline aqueous solution of sodium hypochlorite which solution contains a surfactant having the formula wherein R R and R which can be the same or dif ferent, each is alkyl of 1 to 18 carbon atoms, the sum of the carbon atoms of R R and R being 10 to 20; and X is SO M, CH COOM, CH CH COOM, (CH CH O),,SO M or (CH CH O),,COOM, wherein n is an integer of 1 to 40 and M is an alkali metal.
• the liquid detergent bleaching composition is an alkaline aqueous solution of sodium hypochlorite and contains therein a special surfactant which is scarcely decomposed after storage for a long period of time.
• Sodium hypochlorite is now used widely for the purposes of bleaching, sterilization and deodorization.
• Sodium hypochlorite is also used for disinfection of tableware in public eating facilities, including company cafeterias and restaurants, and also for bleaching textiles and for deodorization of washrooms and plumbing in-households because of its lowcost. It has been demanded by users to provide an improved wetting or penetrating property to sodium hypochlorite solutions, and to improve the bleaching and sterilizing powers thereof.
• a penetrating agent For this purpose, the use of a penetrating agent is necessary.
• a general purpose surfactant of the type generally used in household soaps or synthetic detergent compositions is added to sodium hypochlorite, decomposition of sodium hypochlorite is promoted in aqueous systems and the surfactant is insoluble therein or an oxidation reaction or decomposition occurs whereby stable compositions cannot be obtained.
• synthetic detergents there are in general use anionic and nonionic surfactants such as sodium alkylbenzene sulfonates, sodium alkylsulfates and polyoxyethylene alkyl ethers.
• alkyl ether sulfates of formula (C) are considered to be equivalent to the alkylphenol ether sulfates of formula (B), in detergent formulations compounds of formula (C) are in practice limited to those wherein n represents a number of about 1 to 3, whereas compounds of formula (B) wherein n represents a number of about 1 to 40 are used in the sodium hypochlorite solutions. Although the latter compounds wherein n represents a large number are soluble in sodium hypochlorite, the resulting composition has an impractically poor shelf life, because after storage for a long period of time, sodium hypochlorite and the surfactant are decomposed greatly.
• R R and R which can be the same or different, each represent alkyl of 1 to 18 carbon atoms, the sum of the carbon atoms of R R and R being 10 to 20; and X represents SO M, CH COOM, -CI-l CI-1 COOM, (CI-I CH O),,SO M or (CH C- H O),,CI-I COOM, wherein n is an integer of l to 40 and M is an alkali metal, derived from B,B-dialkyl-substituted monohydric alcohols, are soluble in aqueous sodium hypochlorite solutions and they form with sodium hypochlorite stable composiitions without causing serious decomposition of the sodium hypochlorite.
• the compounds of formula I can be used as surfactants and they have, in aqueous alkaline sodium hypochlorite solutions, a deterging power equivalent to that of the above-mentioned surfactants contained in general purpose synthetic detergent compositions.
• a liquid detergent bleaching composition in which the bleaching power and sterilizing power of sodium hypochlorite have been improved by addition of the surfactant of formula 1 and which composition has been further provided with a satisfactory deterging effect.
• sodium hypochlorite is converted to an aqueous alkaline solution thereof by adding an alkaline substance such as sodium hydroxide, potassium hydroxide, sodium carbonate or sodium orthophosphate, because sodium hypochlorite is easily stabilized in an aqueous alkaline solution.
• an alkaline substance such as sodium hydroxide, potassium hydroxide, sodium carbonate or sodium orthophosphate
• the compounds of the aboveformula I are obtained by synthesizing tertiary carboxylic acids, reducing the resulting tertiary carboxylic acids into alcohols with lithium aluminum hydride or the'like and then converting the alcohols into sulfonated or carboxylated products by a known method to obtain the corresponding surfactants of formula 1.
• the reaction scheme is shown below:
• Sodium hypochlorite is prepared by introducing chlorine into sodium hydroxide. By this reaction, sodium chloride is by-produced in substantially the same amount as sodium hypochlorite. The sodium chloride thus by-produced is removed, if necessary, before use of the sodium hypochlorite.
• the liquid detergent bleaching composition of the present invention consists essentially of (a) 0.5 to wt. preferably 1 to 7 wt. of sodium hypochlorite, (b) 0.1 to wt. preferably 0.5 to 8 wt. of a surfactant of the above general formula I, (c) 0.1 to 5 wt. preferably 0.5 to 2 wt. of water-soluble alkaline substance and the balance is water. If necessary, a perfume, another chlorine-resistant surfactant, chlorine-resistant fluorescent dye, etc, can be added thereto.
• EXAMPLE 2 A liquid detergent bleaching agent of the following composition was heated at 90C. for 5 hours. The available chlorine concentration in the sodium hypochlorite was measured before and after the heating to establish the degree of decomposition of sodium hypochlorite that occurred as a result of the heating.
• R R and R which can be the same or different, each is alkyl having l to 18 carbon atoms, the sum of the carbon atoms of R R and R being from 10 to 20, and X is -SO M, CH
• composition as claimed in claim 1 consisting essentially of from 1 to 7 percent by weight of sodium hypochlorite, from 0.5 to 8 percent by weight of said surfactant, from 0.5 to 2 percent by weight of said alkali and the balance water.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Detergent Compositions (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=15242986

Family Applications (1)

Country Status (5)

Cited By (20)

Families Citing this family (6)

Family Cites Families (3)

• 1973
  • 1973-12-11 JP JP13933873A patent/JPS565800B2/ja not_active Expired
• 1974
  • 1974-12-07 DE DE2458100A patent/DE2458100C3/de not_active Expired
  • 1974-12-09 US US531226A patent/US3929661A/en not_active Expired - Lifetime
  • 1974-12-10 GB GB5335274A patent/GB1466610A/en not_active Expired
  • 1974-12-11 FR FR7440819A patent/FR2253826B1/fr not_active Expired

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