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Publication numberUS3758409 A
Publication typeGrant
Publication dateSep 11, 1973
Filing dateDec 2, 1971
Priority dateDec 9, 1970
Also published asDE2160409A1, DE2160409B2, DE2160409C3
Publication numberUS 3758409 A, US 3758409A, US-A-3758409, US3758409 A, US3758409A
InventorsIwasa I, Nakagawa Y
Original AssigneeKao Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Cleaning and bleaching liquid composition
US 3758409 A
Abstract  available in
Images(3)
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Claims  available in
Description  (OCR text may contain errors)

Patented Sept. 11, 1973 US. Cl. 252-99 3 Claims ABSTRACT OF THE DISCLOSURE A transparent liquid detergent composition, excellent in bleaching and cleaning properties, consisting essentially of a surface active agent represented by a general formula,

(wherein R stands for an alkyl group having 8 to 22 carbon atoms, n is an integer of 1 to 40, m is an integer of l or 2 and M is an alkali metal), an alkali metal hypochlorite and an alkali agent dissolved in water, said alkali metal hypochlorite containing less than mol of alkali metal chloride per mol of the hypochlorite and the available chlorine content of the composition being 0.5-13% by weight.

This invention relates to a cleaning and bleaching liquid composition containing hypochlorite.

More particularly, it relates to a cleaning and bleaching liquid composition, characterized by consisting of a surface active agent represented by a general formula (1) a--o(cnzcmonwnnm-coom (1) (wherein R stands for an alkyl group having 8 to 22 carbon atoms, 11 is an integer of l to 40, M is an integer of 1 or 2 and m is an alkali metal), an alkali metal hypochlorite and an alkali agent as indispensable components, dissolved in water, said alkali metal hypochlorite containing less than A mol of an alkali metal chloride per mol of the hypochlorite and the available chlorine content of the composition being 0.5-13% by weight.

There have been presented various surface active agents that are dissolved stably in sodium hypochlorite solution; for example, there are sodium alkyldiphenyloxide sulfonate (Japanese patent publication No. 6,268/ 1963 and USP No. 3,172,861), a compound represented by a general formula,

RO(CH CI-hO) S0 Me (wherein R is an alkyl group having 8 to 9 carbon atoms, Me is an alkali metal, and n is an integer of to 40) (Japanese patent publication No. 2,103/ 1968), and a compound represented by a general formula,

sum up to 17, X is a member of the group consisting of --COOMe, --SO Me, OSO Me, or

Y is a member of the group consisting of COOMe or OSO Me, and Me is an alkali metal) (Japanese patent publication No. 7,976/1970).

These compounds are, however, not satisfactory in all the required properties such as solution stability, cleaning property, wetting power, foaming power and softening property.

We have found that the surface active agent represented by the above-described Formula 1 is a compound that can satisfy all of these required properties.

A conventional commercially-available bleaching liquid employs a hypochlorite containing an equimolar amount of an alkali metal chloride, as it is the most economical; however, the alkali metal hypochlorite used in the composition of this invention (usually the sodium or potassium salt) contains either no alkali metal chloride or less than A mol per mol of the alkali metal chloride of the hypochlorite.

The stability of a hypochlorite solution depends on the strength of the ions contained in it, but in the system containing a surface active agent represented by the Formula 1, the decomposition of the surface active agent due to sodium hypochlorite and the decomposition of sodium hypochlorite has been found to be much more influenced by the presence of sodium chloride, than by sodium sulfate or sodium orthophosphate, even with the same strength of ions.

In the present invention, accordingly, it is important for the stability of the composition to remove alkali metal chlorides which will particularly accelerate the decomposition of the surface active agent by hypochlorite, in addition to lowering the strength of ions of inorganic salts.

The amount of the surface active agent of the Formula 1 used in the composition of this inventionis about 0.5 to 20% by weight of the composition.

The amount of the hypochlorite used is selected so as to make the available chlorine content in the composition to be about 0.5 to 13% by weight. When the content is less than 0.5%, the bleaching effect is unsatisfactory and when it is more than 13%, the composition tends to be unstable.

As the alkali agent, alkali metal hydroxides are the most preferable, but carbonates, orthophosphates or metasilicates may be used. When the composition is to be stored particularly for a long time, alkali metal hydroxides such as sodium hydroxide and potassium hydroxide are preferable.

These alkali agents are effective for the stabilization of the surface active agent and act as a buffer for the system. The amount of the alkali agent to be used in the composition of this invention is 0.5 to 2.0% by weight, preferably 0.8 to 1.3% by weight of the composition.

The composition of this invention is a transparent liquid detergent that undergoes neither the decomposition of the hypochlorite and the surface active agent nor any turbid precipitation even after storing it for a long time, and it is excellent in its bleaching and cleaning properties.

The invention will be explained by several illustrative examples wherein percent are all by weight.

Bleaching and cleaning liquor compositions A, B, C, D and E having 6.0% of the available chlorine concentration were prepared according to the above-described composition with different surface active agents, which are shown A composition prepared with a sodium hypochlorite sobelow: lution (the available chlorine, 12.3%; sodium chloride, 11.16%) containing sodium chloride in an amount almost Composition Surface WW6 agent similar as the amount of sodium hypochlorite, separated A CHEW nto two layers, when it was used in compositions similar to those of compositions F to K.

SOaNB SOsNa EXA 3 CORPQWCHQCHNMSOaNa The following compositions were prepared with a so 7 e dium hypochlorite solution with a low sodium chloride 0 content (available chlorine, 12.50%; sodium chloride, coHn o(omcmmsoaNa 0.80%) and a sodium hypochl ri e Solution With a high sodium chloride content (available chlorine content, D O CH CH O CH COON 12.34%; sodium chloride, 10.2%).

I a C01 in i 2 )s 2 TABLE 3 E Composition, percent L M N 0 m- -0 (CHgCH)1zCHzCOONa I Sodrumhypochlorrte (astheavarlablechlorine)..- 6.0 6.0 6.0

The stability and the foaming power were determined 20 CHn-O(CHiCH 0)n0HiCo0Na 4.0 4.0 for each composition, and the results are shown in Table 1. NaO 1 i 1 NaCl 0.4 5.0 5.0 TABLE 1 Water Balance A B o D E ta l y oftthe {g s 3-33 2 98 3% 3% 33? 5 The composition L remained stable and transparent or ace ac 've er rea men :tzent, per cent. Decomposition rate 0.7 7.0 8.0 1.3 1.7 after Storing at room te'mperature and a C; 3 Stability otthe Initial stag $.00 g-gg 51g 2g g-gg months, but the composition M had a high viscosity ust iiltl Bltcillf assassinate; if; enen blending and eepeneeee no inyene enen leaving Foaming power n 4 g $3; 1 8 i 3 at room temperature. The composition L had 5.13% izg pmpfmy lenmeye sk 'providd 3 available chlorine content after storing at room temperaamso asam GWGXB DU ll'la CC. I i I a with ar i air condenser? and heated at 90 C. for 5 hours to accelerate deture for 6 months a closed Contalnerg Could be used yw at f m t t (with 0 27 oneentmt. n t mo tem r as a detergent for diapers. The composition N was a comture 3 iiiin3ain1 ii sied are the mn m n of Wags). m 3 p o Similar to a conventional commercially-available glgrgm e c fi y avatilable g i i pp 5 3 1 7; 9 g 9 bleaching liquor, and had 5.20% available chlorine con- 8 Of 11111111 88, was 1e 11 3. W8 er S ream an ['16 W1 51!. The treatment was repeated 10 times to prepare samples. The relative 3O tent after g at room temperature 6 monthss olt r ss 0t th imp m m 2y p l g 0 p rsons who assigned The wetting power of the 1% solution was 45 seconds 0 e S m 85 8 ran '1 S O O 111 1e 01 er 0 801085 ng SO H9583 e Tlie avgragg of the rankings average by the test panel are listed. The Wlth the composltlor} accorfimg to felt Sedlmentatlon small r t figure the softer is the Sample test, but the composition N did not sink after 300 seconds.

. What we claim is: g g that the collinpisltlons g 1. A cleaning and bleaching liquid composition conaccor mg 0 e mven are exce en as a W sisting essentially of an aqueous solution of EXAMPLE 2 (A) from about 0.5 to about 20%, by weight of the The compositions Shown in Table 2 were prepared composition, of surface active agent of the formula with a sodium hypochlorite solution (available chlorine, -0(CH OHz0)n(GH )mC00M 12.5%; sodium chloride, 0.8%).

TABLE 2 Composition, percent F G H I J K Sodium hypochlorite (as available chlorine) 6.0 5. 5 6. 5 6.0 6.0 4. 0 Odin-QO(CHzCH2O) CHzGOONa-. 2.0 3.0 o H -Q-O omomoncmoooNn 3.0 4.0 CQHWQO orizonionomcmooomu- 4.0 1.0

C12H25Q-0(CHzCH20)10CH2COON3 4.0 1.0

NnOH 1.0 1.0 1.0 .0 1.0 1.0 Water Balance Each composition was stored at 5 C. for 30 days but 5 wherein it was still transparent and did not show any turbid precipitation. The available chlorine concentrations after 15 alkyl havlng 3 to 22 afb011 aloms, storing at 30 C. for 20 days are as follows: 11 is an integer of l to 40,

Percent in is an integer of 1 or 2, and F 5.60 M is an alkali metal, G 5.08 (B) an alkali metal hypochlorite selected from the H 6.12 group consisting of sodium hypochlorite and potassium hypochlorite, said alkali metal hypochlorite containing less than A mol of alkali metal chloride per mol of the hypochlorite and the available chlo- 6 rine content of the composition being from 0.5 to References Cited 13.0% by g and UNITED STATES PATENTS (C) from about 0.5 to 2.0%, by weight of the compo- 2 302 715 3 1957 Hodel- 8 1( 3 X sition, of alkali agent selected from the group con- 5 ,2 7 11/ 1966 Aig gp r e et al- 2gg 7 H n i 2, 2,8 8 12/1953 Bran on 2 187 H sistlng of hydrox1des, carbonates, orthophosphates 1,834,210 12/1931 Hershann 232 187 H and metasilicates of sodium or potassium. 2. A cleaning and bleaching liquid composition as OTHER REFERENCES claimed in claim 1, in which the amount of said alltali 10 f i g agent is from 0.8 to 1.3% by weight of the composition.

3. The cleaning and bleaching liquid composition as MAYER WEI'NBLATT Primary Examiner claimed in claim 1, in which said alkali agent is sodium US. Cl. X.R. or potassium hydroxide. 15 3-103; 23 s 252-95, 187 H

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4029591 *Sep 22, 1975Jun 14, 1977Lion Fat & Oil Co., Ltd.Liquid detersive bleaching composition
US4071463 *May 24, 1976Jan 31, 1978The Dow Chemical CompanyStable cleaning agents of hypochlorite bleach and detergent
US4174289 *Aug 28, 1978Nov 13, 1979Basf Wyandotte CorporationLiquid detergent-bleach concentrates having high alkalinity
US4235732 *Feb 8, 1978Nov 25, 1980The Procter & Gamble CompanyLiquid bleaching compositions
US4281421 *Mar 12, 1979Aug 4, 1981The Procter & Gamble CompanyPassive dosing dispenser with improved hypochlorite cake
US4399050 *May 13, 1981Aug 16, 1983Sandoz Products LimitedBleach composition
US4443353 *Aug 3, 1982Apr 17, 1984Chem-Y Fabriek Van Chemische Producten B.V.Aqueous bleaching agent with cleaning action
US4599186 *Apr 20, 1984Jul 8, 1986The Clorox CompanyThickened aqueous abrasive scouring cleanser
US4657692 *Apr 26, 1985Apr 14, 1987The Clorox CompanyThickened aqueous abrasive scouring cleanser
US4772414 *Jul 24, 1986Sep 20, 1988Ppg Industries, Inc.Bleaching composition
US7560054 *Apr 20, 2006Jul 14, 2009Samsung Electro-Mechanics Co., Ltd.Carboxylic ester dispersant and sulfide phosphor paste composition having same
US7662317 *Jun 30, 2006Feb 16, 2010Samsung Electronics Co., Ltd.Dispersant, paste composition including the dispersant, inorganic device using the paste composition, and display apparatus including the inorganic device
US20070072969 *Apr 20, 2006Mar 29, 2007Lee Eun SCarboxylic ester dispersant and sulfide phosphor paste composition having same
US20070157852 *Jun 30, 2006Jul 12, 2007Lee Eun-SungDispersant, paste composition including the dispersant, inorganic device using the paste composition, and display apparatus including the inorganic device
WO1988005461A1 *Jan 25, 1988Jul 28, 1988Molony Donald PSodium carbonate/sodium hydroxide/sodium hypochlorite composition and process for removing stains
Classifications
U.S. Classification510/370, 252/187.25, 423/473, 510/108, 8/108.1, 510/488, 252/187.26
International ClassificationD06L3/08, C11D1/06, C11D3/395, C11D1/02, C11D7/02, D06L3/00, C11D7/06
Cooperative ClassificationC11D3/3953, C11D3/3956, C11D1/06, C11D7/06
European ClassificationC11D1/06, C11D3/395D, C11D7/06, C11D3/395H