EP0206718A2 - Composition de blanchiment et d'azurage optique et procédé - Google Patents

Composition de blanchiment et d'azurage optique et procédé Download PDF

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Publication number
EP0206718A2
EP0206718A2 EP86304625A EP86304625A EP0206718A2 EP 0206718 A2 EP0206718 A2 EP 0206718A2 EP 86304625 A EP86304625 A EP 86304625A EP 86304625 A EP86304625 A EP 86304625A EP 0206718 A2 EP0206718 A2 EP 0206718A2
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EP
European Patent Office
Prior art keywords
polymer
fluorescent whitening
aqueous solution
composition
whitening agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP86304625A
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German (de)
English (en)
Other versions
EP0206718B1 (fr
EP0206718A3 (en
Inventor
Randall J. Cramer
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Clorox Co
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Clorox Co
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Publication date
Application filed by Clorox Co filed Critical Clorox Co
Priority to AT86304625T priority Critical patent/ATE55408T1/de
Publication of EP0206718A2 publication Critical patent/EP0206718A2/fr
Publication of EP0206718A3 publication Critical patent/EP0206718A3/en
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Publication of EP0206718B1 publication Critical patent/EP0206718B1/fr
Expired legal-status Critical Current

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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
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3749—Polyolefins; Halogenated polyolefins; Natural or synthetic rubber; Polyarylolefins or halogenated polyarylolefins
    • 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
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C11D3/3765—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in 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
    • 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/40—Dyes ; Pigments
    • C11D3/42—Brightening agents ; Blueing agents

Definitions

  • the present invention generally relates to liquid compositions useful in treating fabrics, and particularly relates to liquid bleaching solutions having stably suspended fluorescent whitening agents therein, and preferably also bluing agents.
  • fluorescent whitening agents also known as optical brighteners, or brighteners, which are adsorbed onto textile fibers and impart to the fabric an improved degree of whiteness or brightness (fluorescence) by means of their chemical ability to absorb ultraviolet radiation and re-emit visible radiation
  • fluorescent whitening agents In order to provide substantial fabric whitening, it is desirable to combine the optical brightening capacity of fluorescent whitening agents with an effective bleach.
  • Fluorescent whitening agents are, however, very reactive and generally unstable in liquid chlorine bleaches. The prior art has failed to provide a stable product incorporating fluorescent whitening agents in a liquid chlorine bleach.
  • U.S. Pat. No. 4,271,030 issued June 2, 1981, inventors Brierley et al., discloses a liquid hypochlorite bleach having a particulate pigment, such as ultramarine blue, which is said to be stably suspended in the composition by means of a flocculant, such as calcium soap flocs and amine oxides, filling at least 50% of the volume of the composition; and, U.S. Patent No. 3,663,442, issued May 16, 1972, inventor Briggs, discloses liquid bleaching compositions having a finely particulate. terpolymer which imparts opacity to the compositions.
  • a flocculant such as calcium soap flocs and amine oxides
  • a composition useful for treating fabrics which comprises an aqueous solution, a fluorescent whitening agent, and a polymer dispersed in the aqueous solution which forms a matrix in which the fluorescent whitening agent is entrapped.
  • the amount of fluorescent whitening agent is present in an amount of preferably about 0.01 wt.% to 1.0 wt.%, more preferably about 0.01 wt.% to about 0.2 wt.%.
  • the polymer is present preferably in an amount of from about 0.015 wt.% to about 11.0 wt.%, more preferably in an amount ranging from about 0.3 wt.% to about 2.0 wt. %.
  • the aqueous solution preferably has from about 0.1 wt.% to about 15 wt.% of a hypochlorite salt, more preferably from about 1 wt.% to about 10 wt.% of a hypochlorite salt, and the polymer is preferably an oxidized polyethylene or a polyethylene-acrylic acid copolymer.
  • a bluing agent such as ultramarine blue may also be added, which together with the fluorescent whitening agent, is entrapped within the polymer matrix.
  • the amount of bluing agent is preferably from about 0.01 wt.% to 1.0 wt.%, and more preferably, ranges from about 0.01 wt.% to about 0.2 wt.%.
  • a method for producing a bleaching, brightening, and bluing composition comprises the steps of admixing a quantity of molten polymer with base, contacting the molten polymer in the presence of an anionic or a nonionic surfactant with an aqueous solution to form an emulsion, dispersing a quantity of a fluorescent whitening agent and a quantity of particulate ultramarine blue in the emulsion, and adding a water soluble salt, such as sodium hypochlorite or sodium chloride, until the emulsion collapses with the polymer forming a matrix in which particles of brightener and ultramarine blue are entrapped.
  • the bluing agent may be omitted from the composition.
  • a preferred liquid composition of the invention has sodium hypochlorite in an amount of from about 3.5 wt.% to about 6.2 wt.%, an anionic or nonionic surfactant in an amount of from about 0.03 wt.% to about 0.3 wt.%, a polymer derived from oxidized polyethylene or polyethylene-acrylic acid copolymer in an amount of from about 0.3 wt.% to about 2.0 wt.%, a fluorescent whitening agent in an amount of from about 0.01 wt.% to about 0.2 wt.%, and ultramarine blue particles in an amount of from about 0.01 wt.% to about 0.2 wt.%.
  • the polymer stably suspends and disperses the fluorescent whitening agent and the ultramarine blue particles in the liquid composition.
  • the preferred composition as by adding to wash water, then the polymer releases the fluorescent whitening agent and ultramarine blue particles, which deposit on clothing being washed to mask undesirable yellowing following laundering.
  • the present invention provides liquid compositions which include a dispersed polymer forming a matrix in which substantially water insoluble particles, including brighteners and, if desired, bluing agents, are entrapped.
  • the particles are substantially evenly distributed throughout the composition and are suspended therein by means of the polymer.
  • Suitable brighteners which can be used in the practice of the present invention include compounds which are substantially resistant to chlorine bleaches and which will deposit onto cotton fabric.
  • Particularly suitable compounds include the disodium salt of 2,2-(4,4'-biphenylene divinylene)-dibenzenesulfonic acid (manufactured and sold under the name Tinopal CBS-X by Ciba-Geigy Corporation of Greensboro, North Carolina; "Tinopal” is a registered trademark of Ciba-Geigy) having the structure FORMULA 1 and Phorwite BHC 766 (manufactured by Mobay Corporation of Union, New Jersey; "Phorwite” is a registered trademark of Mobay Corporation) which has the following structure:
  • Alkaline earth, alkali metal, zinc, and other multivalent salts (such as the metals of Group IIIA of the periodic table of the elements (e.g., Al +3 )) of these compounds are also suitable brightening agents, as are the fluorescent whitening agents disclosed in U.S. Pat. No. 3,393,153 to Z immerer, et al., previously incorporated by reference.
  • Concentration of brightener in the bleach composition is particularly preferably between 0.01 wt.% and about 0. 2 wt.%; an especially preferred concentration is approximately 0.1 wt.%.
  • the bleach composition of the present invention may include stably suspended bluing agents or related compounds in addition to optical brighteners.
  • Suitable compounds for suspending in compositions of the present invention are substantially inert in the liquid solution, and include various known pigments.
  • suitable pigments include aluminosilicates, such as the ultramarines (red, green, violet and blue), zeolites, and simple metal oxides (such as titanium dioxide and chromium dioxide).
  • Bluing agents useful in the present invention are substantially water insoluble and often have a higher density than the aqueous solutions in which they are desirably dispersed for fabric treatment.
  • ultramarine blue has a density of 2.35 g/cc, and ultramarine blue particles begin settling out of aqueous solution within about four hours, even when the particles are of very small size.
  • Density of bluing agent in the bleach solution is not believed to be a critical factor in the present invention, as the inventive compositions do not rigorously follow Stokes' law.
  • bluing agents suitable for the present invention may have densities which are either higher or lower than the liquid solution.
  • Particle size will generally be from about 0.5 to about 50 microns, preferably from about 0.5 to about 2 microns.
  • Compositions of the invention will typically have relatively low viscosity (about 20 to about 60 centipoise, or 0.02 to 0.06 pascal second), and thus are readily poured or dispensed for use.
  • Preferred compositions have a pH of at least about 11, preferably a pH of at least about 12.5.
  • a source of caustic preferably sodium hydroxide. Preferred amounts are from about 0.01 to about 5.0 wt.%, more preferably from about 0.5 wt.% to about 2.0 wt.%, and most preferably from about 1.0 to about 1.75 wt.%. While sodium hydroxide is preferred, other alkali metal hydroxides (e.g., potassium hydroxide, lithium hydroxide) are suitable. Alkali metal carbonates and silicates may also provide the proper high pH.
  • Particularly preferred concentration of bluing agent ranges from about 0.01 wt.% to about 0.2 wt.%, and an especially preferred concentration is about 0.05 wt.%.
  • Bluing agents for use in the practice of the present invention are effective as composition colorants in addition to providing effective masking of the yellow cast of laundered fabric.
  • suitable compounds that may be substituted for functional bluing agents include non- functional colorants such as anthraquinone dyes.
  • Suitable polymers for practice of the present invention form a matrix which is dispersed in an aqueous solution and which entraps the particulate.
  • Preferred polymers include modified polyethylenes, such as oxidized polyethylenes and polyethylene-acrylic acid copolymers, which have melting points in the range of about 90°C to about 120°C.
  • Oxidized polyethylenes suitable for the present invention may vary considerably in structure.
  • One suitable oxidized polyethylene has the general formula shown by Formula 3, below, where "R” may be hydrogen or alkyl groups.
  • the ether and ester functionalities may be linear (as illustrated by Formula. 3) or be intramolecularly bonded ring structures.
  • the oxidized polyethylenes typically have a molecular weight of about 400 to about 3000 and have acid numbers from about 30 to about 120.
  • polyethylene-acrylic acid copolymers which are slightly branched polyethylene chains containing no oxygen functionality other than carboxyl groups, and have the general structure illustrated by Formula 4, below.
  • Molecular weight is typically below about 10,000, and more preferably ranges from about 500 to about 6000, and the copolymers have acid numbers ranging from about 25 to about 160.
  • Particularly preferred copolymers have acid numbers ranging from about 30 to about 70.
  • R may be hydrogen or carboxyl
  • Preparation of compositions in accordance with the present invention includes forming an emulsion of suitable polymer with an anionic or a nonionic surfactant.
  • the amount of surfactant used is preferably from about 0.01 wt% to about 6.0 wt.%, more preferably from about 0.03 wt.% to about 0.3 wt.%.
  • the emulsified polymer forms a discontinuous, internal phase which is dispersed in the continuous, external aqueous phase.
  • Suitable anionic surfactants, or emulsifying agents include soaps (such as are produced from reacting fatty acids with alkalis or amine compounds), sulfates, sulfonates and phosphates.
  • Suitable nonionic surfactants include polyoxyethylene and polyoxypropylene derivatives, fatty alkanol amides and fatty amine oxides.
  • the emulsion is preferably prepared by melting the oxidized polyethylene or polyethylene acid copolymer with a solution of the surfactant and with base, and then slowly adding boiling water to the melt. At emulsion inversion point, the viscosity of the composition drops and additional boiling water may be added to adjust the emulsion to a desired weight percent of total solids.
  • a quantity of either bluing agent or both fluorescent whitening agent and bluing agent is then dispersed into the emulsion, preferably with the dispersed bluing agent and brightener being in a weight ratio with respect to the emulsified polymer of from about 1:1.5 to about 1:8. If fluorescent whitening agent only is dispersed, a ratio of about 1:1.5 to 1:3 is preferred, and is more preferably about 1:2.5.
  • Saponification and/or neutralization of the molten polymer is performed prior to formation of the emulsion, preferably with elevated pressure.
  • the oxidized polyethylene is both saponified and neutralized.
  • the polyethylene-acrylic acid copolymer is neutralized.
  • Smooth addition of boiling water preceding the emulsion inversion point provides a uniform dispersion. Cooling of the emulsion to room temperature is preferably at a rapid rate (by means, for example, of a cooling jacket on the emulsion kettle).
  • the selected particulate is then admixed, preferably at a mix rate of about 100 to 300 rpm, forming a simple, physical mixture.
  • a water soluble salt is added until the emulsion collapses (due to increased ionic strength of the solution).
  • Addition of the water soluble salt is preferably by adding a hot (about 21°C to about 40°C) aqueous solution in which the salt is dissolved, preferably at a mix rate of about 100 to 300 rpm. Further additions of the salt solution may be used following collapse of the emulsion to adjust the final, inventive composition to desired solids ranges, and additional surfactant may be added if desired.
  • Suitable water soluble salts include: alkali metal carbonates, such as sodium carbonate; alkali metal halides, such as sodium chloride; alkaline earth halides, such as calcium chloride; alkali metal hypohalites, such as sodium hypochlorite and lithium hypochlorite; alkaline earth hypohalites, such as calcium hypochlorite; alkali metal sulfates, such as sodium sulfate; and alkaline earth and multivalent sulfate salts, such as magnesium and aluminum sulfate. Particularly preferred is sodium hypochlorite.
  • Cardipol LPO-25 (available from Bareco Co.) was utilized in preparing embodiments of the invention in which the polymer was an oxidized polyethylene. Cardipol was found to have a relatively low molecular weight, and samples with a range of saponification numbers 52-91 mg KOH/g and melting points 98-115°C were used.
  • A-C Polyethylene-acrylic acid copolymers
  • the water soluble salt was provided by a liquid hypochlorite bleach containing sodium hypochlorite, and the surfactants chosen were stable to hypochlorite.
  • Aqueous solutions of sodium hypochlorite are inherently basic, as sodium hypochlorite is the salt of a weak acid (hypochlorous acid) and a strong base (sodium hydroxide). Since it is well known that hypochlorite ion is stabilized by basic solutions, conventional aqueous hypochlorite bleach usually incorporates small amounts of sodium hydroxide or sodium carbonate, which adjust the solution to a pH of about 10.5 to 12.0. Aqueous hypochlorite bleaches can also include additional components and be of higher pH. However, it has been found that higher amounts of caustic, e.g., sodium hydroxide, will impart good chemical and physical stability to the compositions of the invention.
  • Examples I-VII illustrate suitable emulsions as precursors in making compositions in accordance with the present invention, and examples VIII through XVI illustrate preferred embodiments.
  • Preferred ranges for the emulsion are:
  • compositions (with varying amounts of an anionic surfactant) were prepared in a manner analogous to the preparation of Example I.
  • Component weight percentages of the three emulsions were as follows:
  • compositions having different ranges of a surfactant were prepared with the emulsion components as follows.
  • Another emulsion (with a nonionic surfactant) was prepared having the component weight percentages as follows.
  • An emulsion was first prepared as follows. To a flask equipped with a condenser and a paddle-blade stirrer was added 10 g. A-C 580 polymer (Allied Chemical Corp., Morristown, New Jersey), 0.5 g NaOH and 5.3 g Dowfax 2A1 (sodium dodecyl diphenyloxide disulfonate, an anionic surfactant obtained from Dow Chemical Co., Midland, Michigan). The contents were then heated with an oil bath set at 120°C until, after about fifteen minutes, there was a viscous melt. Slowly and with continuous agitation, 84.2 g boiling water was added. The oil bath was then replaced with an ice bath and the emulsion was stirred until it cooled to room temperature. The emulsion was filtered through cheese cloth, bottled, and stored.
  • A-C 580 polymer Allied Chemical Corp., Morristown, New Jersey
  • Dowfax 2A1 sodium dodecyl diphenyloxide disulfonate, an
  • Tinopal CBS-X a fluorescent whitening agent obtained from Ciba-Geigy Corporation in Greensboro, North Carolina; "Tinopal” is a registered trademark of Ciba-Geigy
  • 6.0 g water was added 5.0 g of the above emulsion.
  • 4.0 g of a 50 wt.% NaOH solution was mixed with 184.8 g of a liquid hypochlorite bleach solution (having a sodium hypochlorite concentration of about 5.25 wt.%).
  • This bleach solution was then added slowly with agitation to the emulsion and brightener precipitate upon addition of the bleach leading to a stable yellow, opaque colloid.
  • This resultant solution is thus a stable suspension of a fluorescent whitening agent in chlorine bleach.
  • An emulsion was prepared in the same manner as described in Example I, with 10.0 g A-C 580, 0.5 g NaOH and 4.4 g Dowfax 2A1 and 85.1 g water.
  • Tinopal CBS-X (0.2 g) was dissolved in 6.0 g water and 0.2 g ultramarine blue was added and dispersed in the solution with the aid of sonication. The above emulsion, 17.0 g, was then mixed well with the ultramarine blue and CBS-X mixture, followed by the addition of 176.6 g of liquid hypochlorite bleach solution containing 0.5 wt.% NaOH. A stable light blue colloid was formed, indicating a stable suspension of both brightener and bluing agent in chlorine bleach.
  • Brightener may also be added during emulsification of the polymer resulting in an emulsion containing CBS-X. This emulsion can then be used in dispersing the ultramarine blue in liquid hypochlorite bleach solution.
  • the emulsion was prepared in the same manner as described in Example II with the exception that 1.3 g of CBS-X were added to the polymer melt before the addition of water.
  • the liquid hypochlorite bleach dispersion was then prepared in the same manner as described in Example II using the above emulsion with the exception of omitting the addition of 0.2 g of CBS-X.
  • compositions prepared in accordance with the present invention may include alkaline earth or alkaline metal salts of brighteners. These salts may be prepared as follows.
  • the calcium salt of CBS-X was prepared by adding 10 ml of a 10 wt.% CaCl 2 solution to 5 g CBS-X dissolved in 150 ml of water. The precipitate that was formed was filtered and dried.
  • the zinc salt of CBS-X was prepared by adding 25 ml of a 5 wt.% ZnCl2 solution to 5 g CBS-X in 150 ml water. The precipitate was filtered and dried.
  • the magnesium salt of CBS-X was prepared by adding 11 ml of a 5 wt.% MgSO 4 solution to 5.0 g CBS-X in 150 ml water. The precipitate was filtered and dried.
  • the barium salt of CBS-X was prepared by adding 27 ml of a 5 wt.% BaCl 2 solution to 3.0 g CBS-X in 100 ml water. The precipitate was filtered and dried.
  • the aluminum salt of CBS-X was prepared by adding 14 ml of a 10 wt.% solution of Al 2 (SO 4 ) 3 ⁇ 18H 2 O solution to 2 g CBS-X in 75 ml H 2 O. The precipitate was filtered and dried.
  • the composition was composed of the following: 0.1 wt.% ultramarine blue, 0.1 wt.% Tinopal CBS-X, 0.60 wt.% A-C 580 polymer, 0.12 wt.% Dowfax 2A1 surfactant, 1.0 wt.% NaOH, 5.2 wt.% NaOCI, 4.1 wt.% NaCl, and 88.78 wt.% water.
  • the sample was physically stable for 9 weeks at 120°F. It was unstable, i.e. showed some signs of irreversible phase separation, when measured at 12 weeks at 120°F. Measurements were not made after 12 weeks. However, the composition was stable for 12 weeks at both 70°F and 100°F. An approximation based on previous work estimates physical stability as between about 6 months and 1 year at 70°F.
  • Chemical stability was evaluated as follows. After twelve weeks of storage, the percentage of original sodium hypochlorite remaining in solution was measured at various temperatures. At 40°F, 98.0 % was retained; at 70°F, 92.9%; at 100°F, 62.2%; and at 120°F, 23.9%. Thus, the composition shows substantial chemical stability at ordinary and. even at slightly elevated temperatures.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
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EP19860304625 1984-01-27 1986-06-16 Composition de blanchiment et d'azurage optique et procédé Expired EP0206718B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86304625T ATE55408T1 (de) 1985-06-24 1986-06-16 Verfahren und zusammensetzung zum bleichen und optischen aufhellen.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US57456584A 1984-01-27 1984-01-27
US74830685A 1985-06-24 1985-06-24
US748306 1985-06-24

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EP0206718A2 true EP0206718A2 (fr) 1986-12-30
EP0206718A3 EP0206718A3 (en) 1987-04-01
EP0206718B1 EP0206718B1 (fr) 1990-08-08

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273775A2 (fr) * 1986-12-31 1988-07-06 Albright & Wilson Limited Azurants optiques protégés
EP0282215A2 (fr) * 1987-03-06 1988-09-14 The Procter & Gamble Company Composition détergente pour le lavage automatique de la vaisselle
US4863633A (en) * 1987-08-07 1989-09-05 The Clorox Company Mitigation of stress-cracking in stacked loads of fragranced bleach-containing bottles
EP0340371A2 (fr) * 1988-05-05 1989-11-08 Henkel Iberica, S.A. Composition de blanchiment à base d'hypochlorite alcalin et procédé pour sa préparation
EP0351162A1 (fr) * 1988-07-11 1990-01-17 Albright & Wilson Limited Dispersion enzymatique stabilisée
US4946619A (en) * 1988-07-19 1990-08-07 The Clorox Company Solubilization of brighter in liquid hypochlorite
EP0427517A1 (fr) * 1989-11-06 1991-05-15 Bio-Lab, Inc Composition oxydante N-halogénée et oxydant N-halogéné qui contient un pigment bleu stable
US5080826A (en) * 1987-08-07 1992-01-14 The Clorox Company Stable fragranced bleaching composition
US5227366A (en) * 1987-08-07 1993-07-13 The Clorox Company Mitigation of stress-cracking in fragranced bleach-containing bottles
EP0663438A1 (fr) * 1994-01-13 1995-07-19 The Procter & Gamble Company Utilisation de polymères dans les compositions détergentes liquides contenant des azurants optiques pour l'empêchement de formation des taches de tissus
EP0905224A1 (fr) * 1997-09-19 1999-03-31 The Procter & Gamble Company Compositions de blanchiment
WO2001096432A1 (fr) * 2000-06-16 2001-12-20 Basf Aktiengesellschaft Composition de liant contenant une matiere solide et des copolymeres en masse radicalement polymerises
US6566320B1 (en) 1999-10-19 2003-05-20 The Procter & Gamble Company Bleaching composition containing chromotropic compound
US6569826B1 (en) 1999-10-19 2003-05-27 The Procter & Gamble Company Radical scavenger
US6582730B2 (en) 2001-03-30 2003-06-24 Council Of Scientific & Industrial Research Natural fluorescent dye obtained from a marine invertebrate, compositions containing the said dye and their uses
US6689391B2 (en) 2001-03-30 2004-02-10 Council Of Scientific & Industrial Research Natural non-polar fluorescent dye from a non-bioluminescent marine invertebrate, compositions containing the said dye and its uses
US6916492B2 (en) 2001-03-30 2005-07-12 Council Of Scientific & Industrial Research Natural nontoxic multicolor fluorescent protein dye from a marine invertebrate, compositions containing the said dye and its uses
US6956122B2 (en) 2001-09-05 2005-10-18 Council Of Scientific & Industrial Research Multiple fluorescent natural dye compound from a marine organism
US7214652B1 (en) 2005-12-30 2007-05-08 3M Innovative Properties Company Anionic surfactant-containing hypochlorite bleach composition and methods of making and use
EP1865051A1 (fr) * 2006-06-08 2007-12-12 The Procter and Gamble Company Compositions de blanchiment
CN104232359A (zh) * 2014-09-28 2014-12-24 山西青山化工有限公司 一种均二苯乙烯双三嗪型液体增白剂及其制备方法

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US3393153A (en) * 1965-12-20 1968-07-16 Procter & Gamble Novel liquid bleaching compositions
US3655566A (en) * 1970-03-05 1972-04-11 Purex Corp Ltd Bleach having stable brighteners
US3666680A (en) * 1970-03-05 1972-05-30 Purex Corp Ltd Method of combining optical brighteners with polymers for stability in bleach and encapsulated product
GB2100307A (en) * 1981-06-08 1982-12-22 Clorox Co Stable hydrochlorite solution suspendable dyes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393153A (en) * 1965-12-20 1968-07-16 Procter & Gamble Novel liquid bleaching compositions
US3655566A (en) * 1970-03-05 1972-04-11 Purex Corp Ltd Bleach having stable brighteners
US3666680A (en) * 1970-03-05 1972-05-30 Purex Corp Ltd Method of combining optical brighteners with polymers for stability in bleach and encapsulated product
GB2100307A (en) * 1981-06-08 1982-12-22 Clorox Co Stable hydrochlorite solution suspendable dyes

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273775A3 (fr) * 1986-12-31 1989-04-26 Albright & Wilson Limited Azurants optiques protégés
EP0273775A2 (fr) * 1986-12-31 1988-07-06 Albright & Wilson Limited Azurants optiques protégés
EP0282215A2 (fr) * 1987-03-06 1988-09-14 The Procter & Gamble Company Composition détergente pour le lavage automatique de la vaisselle
EP0282215A3 (en) * 1987-03-06 1990-01-10 The Procter & Gamble Company Automatic dishwasher detergent composition
US5080826A (en) * 1987-08-07 1992-01-14 The Clorox Company Stable fragranced bleaching composition
US4863633A (en) * 1987-08-07 1989-09-05 The Clorox Company Mitigation of stress-cracking in stacked loads of fragranced bleach-containing bottles
US5227366A (en) * 1987-08-07 1993-07-13 The Clorox Company Mitigation of stress-cracking in fragranced bleach-containing bottles
EP0340371A2 (fr) * 1988-05-05 1989-11-08 Henkel Iberica, S.A. Composition de blanchiment à base d'hypochlorite alcalin et procédé pour sa préparation
EP0340371A3 (en) * 1988-05-05 1990-04-04 Henkel Iberica, S.A. Bleaching composition containing alkaline hypochlorite and process for its manufacture
EP0351162A1 (fr) * 1988-07-11 1990-01-17 Albright & Wilson Limited Dispersion enzymatique stabilisée
WO1990000593A1 (fr) * 1988-07-11 1990-01-25 Novo Nordisk A/S Dispersion enzymatique stabilisee
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EP0427517A1 (fr) * 1989-11-06 1991-05-15 Bio-Lab, Inc Composition oxydante N-halogénée et oxydant N-halogéné qui contient un pigment bleu stable
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EP0663438A1 (fr) * 1994-01-13 1995-07-19 The Procter & Gamble Company Utilisation de polymères dans les compositions détergentes liquides contenant des azurants optiques pour l'empêchement de formation des taches de tissus
EP0905224A1 (fr) * 1997-09-19 1999-03-31 The Procter & Gamble Company Compositions de blanchiment
WO1999015616A1 (fr) * 1997-09-19 1999-04-01 The Procter & Gamble Company Compositions de blanchiment
US6566320B1 (en) 1999-10-19 2003-05-20 The Procter & Gamble Company Bleaching composition containing chromotropic compound
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WO2001096432A1 (fr) * 2000-06-16 2001-12-20 Basf Aktiengesellschaft Composition de liant contenant une matiere solide et des copolymeres en masse radicalement polymerises
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US6689391B2 (en) 2001-03-30 2004-02-10 Council Of Scientific & Industrial Research Natural non-polar fluorescent dye from a non-bioluminescent marine invertebrate, compositions containing the said dye and its uses
US6916492B2 (en) 2001-03-30 2005-07-12 Council Of Scientific & Industrial Research Natural nontoxic multicolor fluorescent protein dye from a marine invertebrate, compositions containing the said dye and its uses
US6956122B2 (en) 2001-09-05 2005-10-18 Council Of Scientific & Industrial Research Multiple fluorescent natural dye compound from a marine organism
US7012093B2 (en) 2001-09-05 2006-03-14 Council Of Scientific & Industrial Research Multiple fluorescent natural dye compound from a marine organism and method of use thereof
US7214652B1 (en) 2005-12-30 2007-05-08 3M Innovative Properties Company Anionic surfactant-containing hypochlorite bleach composition and methods of making and use
EP1865051A1 (fr) * 2006-06-08 2007-12-12 The Procter and Gamble Company Compositions de blanchiment
WO2007141735A1 (fr) * 2006-06-08 2007-12-13 The Procter & Gamble Company Compositions de blanchiment
CN104232359A (zh) * 2014-09-28 2014-12-24 山西青山化工有限公司 一种均二苯乙烯双三嗪型液体增白剂及其制备方法

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EP0206718B1 (fr) 1990-08-08
EP0206718A3 (en) 1987-04-01

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