EP0903401B1 - Additif antimicrobien pour détergents - Google Patents

Additif antimicrobien pour détergents Download PDF

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Publication number
EP0903401B1
EP0903401B1 EP19980810888 EP98810888A EP0903401B1 EP 0903401 B1 EP0903401 B1 EP 0903401B1 EP 19980810888 EP19980810888 EP 19980810888 EP 98810888 A EP98810888 A EP 98810888A EP 0903401 B1 EP0903401 B1 EP 0903401B1
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EP
European Patent Office
Prior art keywords
detergent additive
laundry detergent
additive according
formula
surfactant
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.)
Expired - Lifetime
Application number
EP19980810888
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German (de)
English (en)
Other versions
EP0903401A1 (fr
Inventor
Rüdiger Hirsch
Werner Hölzl
Marcel Schnyder
Rainer Hans Traber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF Schweiz AG
Original Assignee
Ciba Spezialitaetenchemie Holding AG
Ciba SC Holding AG
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Publication date
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Priority to EP19980810888 priority Critical patent/EP0903401B1/fr
Publication of EP0903401A1 publication Critical patent/EP0903401A1/fr
Application granted granted Critical
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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
    • C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
    • C11D3/126—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite in solid 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
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2003—Alcohols; Phenols
    • C11D3/2006—Monohydric alcohols
    • C11D3/2034—Monohydric alcohols aromatic
    • 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
    • C11D3/24—Organic compounds containing halogen

Definitions

  • the present invention relates to an antimicrobial detergent additive, and a method for its manufacture.
  • DE-A-195 38 028 describes a detergent additive which has a swellable Layered silicate, an optical brightener and a surfactant contains.
  • Detergent particles consisting of nonionic surfactant and smectite or zeolite are described in GB-A-2182051.
  • JP-A-91 94 899 discloses detergent compositions containing a nonionic surfactant, an oil absorbing carrier, a clay material and an antimicrobial substance.
  • Textile fiber materials can be made antimicrobial in various ways, so e.g. during the washing process.
  • antimicrobial agents are susceptible to oxidation against the bleach components present in the detergent, e.g. perborates, so that the antimicrobial effect of such a detergent deteriorates significantly can become or even have no effect.
  • the present invention was therefore based on the object of an antimicrobial detergent additive to find the oxidation stable to the other detergent components remains and thus gives the detergent overall good storage stability and At the same time, the antimicrobial effect is fully developed during the washing process.
  • a detergent additive in agglomerate form which, in addition to the antimicrobial active substance, has at least one swellable Layered silicate and a surfactant contains these requirements, i.e. the in this Antimicrobial active substance contained in detergent is protected against oxidizing agents and after the agglomerate has dissolved in the wash liquor.
  • the detergent additive has a high storage stability, disintegrates well in water, and the antimicrobial active substance lies in the washing process homogeneous distribution.
  • the detergent additive may contain, in addition to the swellable layered silicate, the antimicrobial active substance and the surfactant an alkali salt, e.g. Alkali sulfate, alkali carbonate or alkali (poly) phosphate.
  • an alkali salt e.g. Alkali sulfate, alkali carbonate or alkali (poly) phosphate.
  • the swellable layered silicate is preferably a natural or synthetic clay mineral or a synthetic layered sodium silicate.
  • the swellable clay mineral is preferably montmorillonite, beidelite, saponite or hectorite.
  • Bentonite contains montmorillonite as its main mineral, which is a swellable dioctahedral natural layered silicate of the formula Na 0.66 (OH) 4 Si 8 (Al 3.34Mg 0.66 ) O 20 represents.
  • One layer is composed of three sub-elements, with two tetrahedral layers with Si as the central atom and an octahedron layer with Al as the central atom.
  • Al 3+ is partly isomorphically replaced by Mg 2+ .
  • the resulting excess charge is balanced between the layers by Na + or Ca 2+ .
  • the montmorillonite can be used in the sodium or calcium form or in the form of a calcium montmorillonite exchanged with Na + .
  • the bentonite powder preferably has a residual moisture content of about 10% by weight and a sieve residue of a maximum of 30% to 45 ⁇ m.
  • synthetically produced clay minerals can also be used from the groups mentioned above, such as synthetic layered sodium silicates (e.g. the commercial product SKS 6 from Hoechst AG).
  • the layered silicate is preferably used in an amount of 10 to 50% by weight, in particular 30 up to 50% by weight.
  • the swellable layered silicates have the property of swelling within crystals Polar agents intercalate between the silicate lamellae, which can be seen at higher concentrations noticeable in an increase in the layer spacing.
  • the surfactant used according to the invention is preferably an anionic or nonionic Surfactant.
  • the fatty alcohol ethoxylates are stored between the layers.
  • the non-ionic Surfactants in which the antimicrobial active substances are soluble favor them Transport between the lamellae of the swellable layered silicate.
  • the antimicrobial Active substances are intercalated between the layers of the layered silicate and so before protected from reaction with other detergent ingredients.
  • Layered silicates intercalated with surfactants and the antimicrobial active ingredient in Granulate form swell in water and give the tensides and antimicrobial active substance the solution in water free. Due to the swelling effect of the layered silicate agglomerate in Water, the agglomerates are blown up and distributed in the water.
  • the compound -2,4,4'-trichloro-2-hydroxydiphenyl ether (triclosan) is very particularly preferred, according to the formula or the compound of the formula (Diclosan).
  • the detergent additive according to the invention can be one or a mixture of several contain antimicrobial active substances.
  • Alkali salts include in particular alkali sulfate, alkali carbonate or alkali (poly) phosphate in the form of their sodium or potassium salts. Is very particularly preferred Sodium sulfate.
  • the alkali salt fulfills several functions: if the layered silicate is agglomerated with the surfactant, this gives a soft agglomerate that becomes sticky with increasing surfactant content, that is not free-flowing and not capable of ensiling. Due to the presence of the alkali salt the mechanical stability of the agglomerate is improved and its stickiness reduced.
  • the alkali salt in the detergent is desirable as a builder component.
  • the Alkali salt is preferably used in amounts of approximately 10 to 40% by weight, in particular approximately 12 up to 30% by weight.
  • the agglomerate particles of the detergent additive according to the invention preferably with synthetic zeolite or layered sodium silicate are encased, thereby increasing the flowability of the agglomerate particles. is improved.
  • the coating with zeolite or layered sodium silicate further improves the whiteness of the agglomerate.
  • the agglomerate preferably has a bulk density of more than 700 g / l and is due to This high bulk density is compatible with highly concentrated, high density detergents.
  • the swellable layered silicate is preferably mixed before the antimicrobial is added Active substance / surfactant with the alkali salt.
  • the powder components can e.g. in an intensive mixer, e.g. in an Eirich mixer be mixed together.
  • the antimicrobial active substance preferably as an aqueous dispersion
  • the surfactant under Whirling is added to the powder component.
  • the resulting agglomerate is sieved and can pass through Addition of further zeolite (in particular zeolite P) or layered sodium silicate coated in powder form on the surface to reduce stickiness.
  • the agglomerate obtained is readily dispersible in water.
  • the antimicrobial substance is protected from the oxidizing agents contained in the detergent and after dissolution of the agglomerate available in the wash liquor.
  • the present invention further relates to a detergent containing the above Detergent additive described in addition to conventional detergent components, such as anionic and non-ionic surfactants, builders (builders), polymers (co-builders), Graying inhibitors, bleaches and bleach activators, enzymes, foam inhibitors, optical brighteners and fragrances and / or dyes.
  • conventional detergent components such as anionic and non-ionic surfactants, builders (builders), polymers (co-builders), Graying inhibitors, bleaches and bleach activators, enzymes, foam inhibitors, optical brighteners and fragrances and / or dyes.
  • the powdered layered silicate and the powdered sodium salt become intense premixed. With intensive swirling of the powder mixture, the surfactant or a Solution of the surfactant added. At the same time, the antimicrobial active substance becomes a Mixture of various antimicrobial active substances as an aqueous dispersion (slurry) added. Alternatively, a solution of the antimicrobial active substance in one Surfactant solution can be added to the powder mixture.
  • the antimicrobial active substance is added as an aqueous dispersion, it agglomerates the mixture at a water content of about 20 to 30% by weight, based on the total mixture.
  • an agglomerate is obtained which is in a suitable dryer, preferably in a fluid bed dryer to a residual water content from about 2 to 15% by weight, preferably from about 5 to 10% by weight becomes.
  • the agglomerate obtained is sieved to a particle size of about 0.2 to 2.5 mm, preferably sieved from 0.5 to 1.7 mm. The fraction becomes ⁇ 0.2 mm fed back to the agglomeration.
  • Coarse grain is removed with a roller crusher crushed and placed again on the screening plant.
  • the antimicrobial active substance with the surfactant is added to the powder mixture, the antimicrobial active substance is first dissolved in powder form in the surfactant.
  • the weight ratio between surfactant and antimicrobial active substance can be 15: 2 to 4:10, preferably 10: 3 to 10: 8.
  • the solution or dispersion of the antimicrobial Active substance in the surfactant is added to the powder with intensive swirling, whereby at the same time further portions of the antimicrobial active substance in aqueous dispersion were added become.
  • the screened agglomerate can be placed in a drum mixer (e.g. a drum mixer from Telschig) or a granulating plate. Then about 3 to 15% by weight, preferably about 5 to 10% by weight, of a synthetic Zeolite or a synthetic layered silicate added in fine-grained form.
  • the average particle size of this powder should preferably be ⁇ 20 ⁇ m, in particular 3 to 10 ⁇ m be.
  • the detergent additive according to the invention thus produced has a bulk density that is greater than 700 g / l, so that it is compatible with detergents with a high bulk density.
  • the swelling effect of the layered silicate contained in the detergent additive disintegrates Agglomerates quickly in water.
  • the active components surfactant and antimicrobial active substance are therefore available in the detergent.
  • Due to the presence of layered silicate and alkali salt the agglomerate is mechanically stable.
  • the agglomerate can be subsequently Add detergent, which makes up essential parts of the detergent production system not be contaminated with the antimicrobial active substance.
  • Another advantage of the detergent additive according to the invention is that the application to a carrier the dosing accuracy of the active substance in the production of detergents is increased.
  • the sample is dried for 4 hours at 65 ° C in a vacuum and then over 3 sieves sieved with mesh sizes of 2, 1 and 0.5 mm.
  • the sample is dried for 4 hours at 65 ° C in a vacuum and then over 3 sieves sieved with mesh sizes of 2, 1 and 0.5 mm.
  • Examples 5 to 10 The procedure is as described in Examples 1 to 4, but the following compounds are used instead of triclosan: example antimicrobial active substance 5 Diclosan (compound of formula (6)) 6 dichlorophen
  • Example 7 Determination of the oxidation stability of triclosan in various triclosan-bentonite compound / detergent mixtures
  • This detergent has the following composition (%): Linear Na alkyl benzene sulfonate 8.0 Mg silicate 1.9 Tallow tetra-ethylene glycol ether dean 2.9 carboxymethylcellulose 1.2 Na-soap 3.5 EDTA 0.2 Na-triphosphate 43.8 Na sulphate 21.2 Na-silicate 7.5 water 9.8
  • the reference mixture has the following composition 0.15% triclosan 12% Na perborate x 1 H 2 O 3% TAED ECE ad 100%.
  • the target content of triclosan in the detergent compositions was determined analytically before the start of the test.

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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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Claims (14)

  1. Additif de détergent sous forme agglomérée, caractérisé en ce qu'il renferme au moins un phyllosilicate gonflable, une substance active anti-microbienne de formule
    Figure 00230001
    où
    X
    représente un atome d'oxygène, de soufre ou un groupe -CH2-,
    Y
    représente un atome de chlore ou de brome,
    Z
    représente un groupe SO2H, NO2 ou alkyle en C1-C4,
    r
    va de 0 à 3,
    o
    va de 0 à 3,
    p
    vaut 0 ou 1,
    m
    vaut 0 ou 1 et
    n
    vaut 0 ou 1
    et un agent de surface.
  2. Additif de détergent selon la revendication 1, caractérisé en ce qu'il renferme en plus un sel alcalin.
  3. Additif de détergent selon la revendication 1 ou 2, caractérisé en ce qu'il renferme
    (a) de 5 à 60 % en poids d'un phyllosilicate gonflable ;
    (b) de 5 à 35 % en poids d'un agent de surface ;
    (c) de 0,1 à 20 % en poids d'une substance active anti-microbienne ; et
    (d) de 0 à 60 % en poids d'un sel alcalin.
  4. Additif de détergent selon l'une des revendications 1 à 3, caractérisé en ce qu'il renferme en tant que phyllosilicate gonflable un minéral argileux naturel ou synthétique ou un silicate de sodium stratifié synthétique.
  5. Additif de détergent selon l'une des revendications 1 à 4, caractérisé en ce qu'on utilise le phyllosilicate dans une quantité de 10 à 50 % en poids.
  6. Additif de détergent selon l'une des revendications 1 à 5, caractérisé en ce que l'agent de surface est pris dans le groupe d'agents de surface anioniques et non ionogènes.
  7. Additif de détergent selon l'une des revendications 1 à 6, caractérisé en ce que, en tant qu'agent de surface non ionogènes, entrent en ligne de compte des oxéthylates d'alcools gras de formule (2)   R-O-(OE)y-H, où
    R
    représente un reste hydrocarboné comprenant 10 à 18 atomes de carbone, en particulier de 12 à 18 atomes de carbone ; ou un reste de formule (2a)
    Figure 00240001
    OE
    est un groupe oxyde d'éthylène ;
    Y1
    représente un groupe alkyle en C1-C12, aryle ou aralkyle ;
    m1
    va de 1 à 4 ;
    et
    y
    va de 2 à 20, en particulier de 3 à 10.
  8. Additif de détergent selon la revendication 7, caractérisé en ce qu'on utilise en tant qu'agent de surface non ionogène un composé de formule (2), où
    R
    représente un groupe alkyle en C12-C15 ; ou un reste de formule (2a) ; et
    y
    va de 3 à 10.
  9. Additif de détergent selon la revendication 8, caractérisé en ce qu'on utilise en tant que substance active anti-microbienne le composé de formule (3), où
    X
    représente un atome d'oxygène, de soufre ou un groupe -CH2-,
    Y
    représente un atome de chlore ou de brome,
    m
    vaut 0,
    n
    vaut 0 ou 1,
    o
    vaut 1 ou 2,
    r
    vaut 1 ou 2 et
    p
    vaut 0.
  10. Additif de détergent selon la revendication 1, caractérisé en ce qu'on utilise en tant substance active le composé de formule
    Figure 00250001
    où
    X
    représente un groupe -O- ou -CH2-,
    m
    va de 1 à 3 ; et
    n
    vaut 1 ou 2.
  11. Additif de détergent selon la revendication 10, caractérisé en ce qu'on utilise le composé de formule
    Figure 00250002
  12. Additif de détergent selon la revendication 10, caractérisé en ce qu'on utilise le composé de formule
    Figure 00250003
  13. Additif de détergent selon l'une des revendications 1 à 12, caractérisé en ce qu'il renferme un sulfate alcalin en tant que sel alcalin.
  14. Procédé pour la préparation de l'additif de détergent selon la revendication 1,
    caractérisé en ce que
    (a) on ajoute au phyllosilicate la substance active anti-microbienne sous forme de dispersion aqueuse conjointement avec l'agent de surface ou
    (b) on dissout d'abord au moins une partie de la substance active anti-microbienne dans l'agent de surface et on ajoute la solution au phyllosilicate.
EP19980810888 1997-09-17 1998-09-08 Additif antimicrobien pour détergents Expired - Lifetime EP0903401B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19980810888 EP0903401B1 (fr) 1997-09-17 1998-09-08 Additif antimicrobien pour détergents

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97810672 1997-09-17
EP97810672 1997-09-17
EP19980810888 EP0903401B1 (fr) 1997-09-17 1998-09-08 Additif antimicrobien pour détergents

Publications (2)

Publication Number Publication Date
EP0903401A1 EP0903401A1 (fr) 1999-03-24
EP0903401B1 true EP0903401B1 (fr) 2003-08-06

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2962702A (en) 2000-12-14 2002-06-24 Ciba Sc Holding Ag Surface-active compositions
EP1727426A1 (fr) * 2004-03-23 2006-12-06 Ciba SC Holding AG Compositions detergentes fongicides
WO2006097238A1 (fr) * 2005-03-16 2006-09-21 Unilever Plc Composition de savon
US20090029896A1 (en) † 2006-02-24 2009-01-29 Andrew Paul Chapple Fast Release Granules

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2182051A (en) * 1985-09-10 1987-05-07 Interox Chemicals Ltd Stabilisation of peroxyacids in detergent compositions containing nonionic surfactant
DE3822479A1 (de) * 1988-07-02 1990-02-08 Henkel Kgaa Waschmitteladditiv mit verbessertem einspuelverhalten
GB8823008D0 (en) * 1988-09-30 1988-11-09 Unilever Plc Composition for softening fabrics
DE4009618A1 (de) * 1990-03-26 1991-10-02 Henkel Kgaa Spruehgetrocknetes, avivierend wirkendes waschmitteladditiv
HUT76688A (en) * 1994-08-25 1997-10-28 Ciba Geigy Ag Surface-active formulations and useing them
DE19538028A1 (de) * 1995-10-12 1997-04-17 Sued Chemie Ag Waschmittelzusatz
JPH09194899A (ja) * 1996-01-22 1997-07-29 Lion Corp 粒状ノニオン洗剤組成物及びその製造方法

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