EP3320076B1 - Grosses particules - Google Patents

Grosses particules Download PDF

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Publication number
EP3320076B1
EP3320076B1 EP16719075.0A EP16719075A EP3320076B1 EP 3320076 B1 EP3320076 B1 EP 3320076B1 EP 16719075 A EP16719075 A EP 16719075A EP 3320076 B1 EP3320076 B1 EP 3320076B1
Authority
EP
European Patent Office
Prior art keywords
particle
water
bleach
adjunct
bleach adjunct
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.)
Active
Application number
EP16719075.0A
Other languages
German (de)
English (en)
Other versions
EP3320076A1 (fr
Inventor
Stephen Thomas Keningley
David Moorfield
Jonathan Osler
David Christopher Thorley
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.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
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Publication date
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Publication of EP3320076A1 publication Critical patent/EP3320076A1/fr
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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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
    • 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
    • C11D3/3955—Organic bleaching agents

Definitions

  • the present invention provides for a bleaching adjunct for incorporation in a large particle formulation.
  • the present invention provides a bleach adjunct particle having perpendicular dimensions x, y and z, wherein x is from 0.5 to 2 mm, y is from 2 to 8mm, and z is from 2 to 8 mm, wherein the particle comprises:
  • the present invention provides a laundry detergent comprising from 5 to 40 %, preferably 10 to 25 wt %, of the bleach adjunct particle as defined in any one of the preceding claims together with from 60 to 95 wt %, preferably 90 to 75 w%, of a coated detergent particle having perpendicular dimensions x, y and z, wherein x is from 0.5 to 2 mm, y is from 2 to 8mm, and z is from 2 to 8 mm, wherein the particle comprises:
  • adjunct particles of similar size may be present. These other adjunct particles may be aesthetic or functional.
  • the bleach adjunct particle and the coated laundry detergent particle are substantially the same shape and size.
  • the bleach adjunct particle and the coated laundry detergent particle are curved.
  • the particle may be shaped as a disc.
  • the particle does not have hole; that is to say, the coated laundry detergent particle does not have a conduit passing there though that passes through the core, i.e., the particle has a topologic genus of zero.
  • the Bleach Adjunct Particle is preferably uncoated in contrast to the laundry detergent particle.
  • the bleaching agent used in the adjunct particle is phthalimido-peroxy-hexanoic-acid ( CAS 128275-31-0 ) (PAP).
  • PAP phthalimido-peroxy-hexanoic-acid
  • the particle size of the PAP is from 10 to 200 microns, preferably 20 to 50 microns.
  • the adjunct particle is susceptible to aqueous attack.
  • the particles of PAP contain are PAP on a carrier such as starch, cellulose, methyl cellulose, ethyl cellulose and propyl cellulose; cellulose ethers; cellulose esters; cellulose amides polysaccharides including starch, modified starch; gelatin; alginates; xyloglucans, other hemicellulosic polysaccharides including xylan, glucuronoxylan, methylcellulose, carboxymethylcellulose sodium, modified carboxy-methylcellulose, dextrin, ethylcellulose, propylcellulose, hydroxyethyl cellulose and silica.
  • a carrier such as starch, cellulose, methyl cellulose, ethyl cellulose and propyl cellulose
  • cellulose ethers such as starch, cellulose, methyl cellulose, ethyl cellulose and propyl cellulose
  • cellulose esters include cellulose amides polysaccharides including starch, modified starch; gelatin; alginates;
  • the particle size is measured using a standard sieve set vibrated at an amplitude of 1.2 mm for 4 mins, the weight retained on each sieve is then recorded as a percentage.
  • the key parameter is the thickness and thickness distribution, this is measured using a micrometer.
  • the composition susceptible to aqueous attack is selected from water-soluble materials, partially water soluble materials, water-dispersible materials, water-disintegrating materials, and mixtures thereof. Dispersed throughout the composition susceptible to aqueous attack is a bleaching agent.
  • the bleaching agent in the adjuncts is from 5 to 60 wt %, preferably 20 to 40 wt %.
  • the composition susceptible to aqueous attack comprises a water-soluble or partially water-soluble material.
  • water-soluble materials include partially water-soluble materials.
  • the functionalized substrate has a water-solubility of at least 50%, alternatively at least 75%, or even at least 95%, as measured by the Water-Solubility Method as provided herein.
  • Suitable water-soluble materials include water-soluble polymeric materials (polymers) which can be formed into a film or sheet or laminate or extruded (or extruded or pressed into a 3-deminsional shape).
  • polymers, copolymers or derivatives thereof suitable for use as water-soluble material include but are not limited to polyvinyl alcohols (PVA), modified PVAs; polyvinyl pyrrolidone; PVA copolymers such as PVA/polyvinyl pyrrolidone; partially hydrolyzed polyvinyl acetate; polyalkylene oxides such as polyethylene oxide; acrylamide; acrylic acid; cellulose, alkyl cellulosics such as methyl cellulose, ethyl cellulose and propyl cellulose; cellulose ethers; cellulose esters; cellulose amides; polyvinyl acetates; polycarboxylic acids and salts; polyaminoacids or peptides; polyamides; polyacryl amide; copolymers of maleic/acrylic acids; polysaccharides including starch, modified starch; gelatin; alginates; xyloglucans, other hemicellulosic polysaccharides including x
  • the polymer comprises polyacrylates, especially sulfonated polyacrylates and water-soluble acrylate copolymers; and alkylhydroxy cellulosics such as methylcellulose, carboxymethylcellulose sodium, modified carboxy-methylcellulose, dextrin, ethylcellulose, propylcellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, maltodextrin, polymethacrylates.
  • the polymer comprises PVA; PVA copolymers; hydroxypropyl methyl cellulose (HPMC); and mixtures thereof.
  • the functionalized substrate comprises a rapid dissolution rate, as defined herein, where the functionalized substrate at least partially dissolves in an aqueous solution at cold temperatures, i.e., less than about 5°C or 10°C during the wash cycle and/or the rinse cycle. Typical wash and/or rinse cycles should take about 10 minutes, alternatively about 5 minutes. In one embodiment, the entire functionalized substrate dissolves in during the wash and/or rinse cycles. In one embodiment, PVA is mixed or blended with another polymer to obtain the desired dissolution rate. It is believed that selecting polymers based on average molecular weight and/or degree of hydrolysis allows for different dissolution rates.
  • the functionalized substrate comprises a PVA film.
  • PVA films are known under the trade reference MonoSol M8630, as sold by MonoSol.
  • Other films suitable for use herein include films known under the trade reference PT film or the K-series of films supplied by Aicello, or VF-HP film supplied by Kuraray.
  • blends of polymers provide dissolving films or foams with dissolution rates of the present invention, which can be produced with good mechanical properties for subsequent handling and converting into manufactured articles.
  • a blend containing at least two types of polymers that have disparate molecular weights can be used to prepare substrate that dissolves at a dissolution rate as disclosed herein under cold water conditions.
  • such blends contain at least a first polymer comprising a molecular weight greater than about 50,000, alternatively greater than about 60,000, and alternatively greater than about 70,000, and a second polymer or mixture of polymers comprising an average molecular weight of less than about 30,000, alternatively less than about 15,000, and alternatively less than about 10,000.
  • the composition may comprises a polymer blend.
  • Blends of high and low molecular weight polymers at ratios of 80/20, 60/40, and 50/50 mixtures of low to high molecular weight polymers can be evaluated for specific applications.
  • the composition comprises a blend of at least one PVA having a molecular weight of about 78,000 and higher and a second PVA about 6,000 or lower. This embodiment has been found to produce a film which dissolves at a rate as defined herein under cold water conditions.
  • solubility modifiers that are soluble in a given pH range are based on methacrylic acid co-polymers, styrene hydroxystyrene co-polymers, acrylate co-polymers, polyethylene glycol polyvinyl acetate, diethylphtalate, dioctyl sodium sulfocuccinate, poly-dl-lactide-co-glycolide (PLG), vinylpyridine/styrene co-polymers.
  • Solubility modifiers that are soluble in a specific chemistry environment are also commercially available.
  • caustic soluble barrier agents are commercially available from Alcoa under the trade name Hydra-Coat-5.
  • Water dispersible barrier agents are based on sodium starch glycolate, polyplasdone and are commercially available from FMC Corporation under the trade name Ac-di-sol, from Edward Mendell Corporation under the trade name Explotab, from ISP under the trade name Crospovidone.
  • Polyacrylate-type mat function as a structurant and comprise in particular polyacrylate polymers and copolymers of acrylate and methacrylate.
  • An example of a suitable polyacrylate type structurant is Carbopol Aqua 30 available from B. F. Goodridge Company.
  • Examples of polymeric gums which may be used as structurant herein can be characterized as marine plant, terrestrial plant, microbial polysaccharides and polysaccharide derivatives. Examples of marine plant gums include agar, alginates, carrageenan and furcellaran. Examples of terrestrial plant gums include guar gum, gum arable, gum tragacenth, karaya gum, locust bean gum and pectin. Examples of microbial polysaccharides include dextrin, gellan gum, rhamsan gum, welan gum and xanthan gum.
  • polysaccharide derivatives include carboxymethyl cellulose, methyl hydroxypropyl cellulose, hydroxy propyl cellulose, hydroxyethyl cellulose, propylene glycol alginate and hydroxypropyl guar.
  • the second structurant is selected from the above list or a combination thereof.
  • Acceptable polymeric gums include pectin, alginate, arabinogalactan (gum Arabic), carrageenan, gellan gum, xanthan gum, Diutan® gum (ex. CP Kelco), and guar gum. If polymeric gum structurant is employed herein, an acceptable material of this type is gellan gum.
  • Gellan gum is a tetrasaccharide repeat unit, containing glucose, and glucurronic acid, glucose.
  • the functionalized substrate may further comprise a plasticizer, for example glycerol, dipropylene glycol, ethylene glycol, diethyleneglycol, propylene glycol, sorbitol and mixtures thereof.
  • a plasticizer for example glycerol, dipropylene glycol, ethylene glycol, diethyleneglycol, propylene glycol, sorbitol and mixtures thereof.
  • Glycerol is one preferred plasticizer.
  • Other useful additives include disintegrating aids.
  • composition susceptible to aqueous attack comprises sodium citrate/citric acid, polyvinyl alcohol, maleic acid/acrylic acid copolymer sodium salt (preferably Sokolan CP5), methylglycinediacetic acid (MGDA), starch, silicone antifoam and/or carboxymethyl cellulose.
  • sodium citrate/citric acid polyvinyl alcohol
  • maleic acid/acrylic acid copolymer sodium salt preferably Sokolan CP5
  • MGDA methylglycinediacetic acid
  • starch silicone antifoam and/or carboxymethyl cellulose.
  • the coated detergent particle is described in the following patent applications: WO/2012/048950 ; WO/2012/048947 ; WO/2012/048949 ; WO/2012/048951 ; WO/2012/048948 ; WO/2012/049178 ; WO/2012/048926 ; WO/2012/048945 ; WO/2012/048909 ; WO/2012/049033 ; WO/2012/048910 ; WO2013/149754 ; WO2013/149755 ; WO2013/149753 ; WO2013/149752 ; and, WO2014/048857 .
  • WO2010/122050 describes a process for the preparation of a coated detergent particle.
  • Two comparative samples were prepared in the extruder, in one case the product from the extruder was controlled to be a powder/granule in the alternate the product was formed into a lenticular shape by extrusion under pressure and cutting the product into a lenticular shape. This is to exemplify how the physical form of the product can influence the degree of damage caused to a fabric.
  • the above formulation was mixed with water to form a soft solid as it was processed through an extruder at 40 to 50°C, as disclosed in WO2010/122050 , to provide lenticular adjunct particles having the following size range 1mm thickness and 5mm diameter.
  • a Subsample was added to a screen mill to produce a powder.
  • Particle size data on powder sample Weight percent via sieving (4mins sieving @ 1.2 amplitude, std sieve shaker) microns Granule ⁇ 250 >250 >500 >1000 Control 13 16 67 4 A 23 18 52 7 B 16 18 59 7 C 5 20 65 10 Thickness of crystal form (average of 8 measurements using digital calliper) Lentil Control 0.75mm A 1.53mm B 0.83mm C 1.11mm
  • Bleach-containing products were compared to a non-bleach containing control product at equivalent levels in a static contact test. Average measurements of colour change using the CIE DE* scale were recorded as shown.
  • the granule/adjunct was added to a standard non-bio detergent formulation in a ratio of 70 parts detergent base to 30 parts adjunct granule to produce a detergent product.
  • One 10x10cm piece of woven cotton fabric dyed with Cl sulphur black 1 (CAS#1326-82-5) was placed into a shallow tray and 5ml water (26°FH) was added.
  • 0.5g of formulation in either adjunct or powdered form was evenly applied over a central area that measured 25cm2.

Claims (7)

  1. Particule adjuvante de blanchiment ayant des dimensions x, y et z perpendiculaires, dans laquelle x est de 0,5 à 2 mm, y est de 2 à 8 mm, et z est de 2 à 8 mm, et la particule comprend :
    (i) de 40 à 95 % en poids d'une composition sensible à l'attaque aqueuse, dans laquelle ladite composition est choisie parmi les substances hydrosolubles, les substances partiellement hydrosolubles, les substances hydrodispersibles, les substances se délitant dans l'eau, et leurs mélanges ; et
    (ii) de 5 à 60 % en poids de particules de PAP ayant une taille de 10 à 200 microns, de préférence de 20 à 50 microns, mieux encore de 20 à 40 microns dispersées dans la composition sensible à l'attaque aqueuse, dans laquelle quand 1 g de particule adjuvante de blanchiment est dissous dans 100 ml d'eau déminéralisée, le pH de la solution est dans la plage de 3 à 6, de préférence de 3 à 5.
  2. Particule adjuvante de blanchiment selon la revendication 1, dans laquelle la particule adjuvante de blanchiment comprend de 5 à 30 % en poids de sel de sodium d'un copolymère d'acide maléique/acide acrylique.
  3. Particule adjuvante de blanchiment selon la revendication 1 ou 2, dans laquelle la particule adjuvante de blanchiment comprend un composant acide choisi parmi : l'acide citrique ; et l'acide méthylglycinediacétique.
  4. Particule adjuvante de blanchiment selon l'une quelconque des revendications précédentes, dans laquelle la particule comprend de 0 à 15 % en poids d'eau.
  5. Particule adjuvante de blanchiment selon la revendication 4, dans laquelle la particule comprend de 1 à 5 % en poids d'eau.
  6. Détergent pour le linge comprenant de 5 à 40 %, de préférence de 10 à 25 % en poids, de la particule adjuvante de blanchiment telle que définie dans l'une quelconque des revendications précédentes et de 60 à 95 % en poids, de préférence de 90 à 75 % en poids, d'une particule détergente revêtue ayant des dimensions x, y et z perpendiculaires, dans laquelle x est de 0,5 à 2 mm, y est de 2 à 8 mm, et z est de 2 à 8 mm, et la particule comprend :
    (i) de 20 à 50 % en poids d'un tensioactif choisi parmi : les tensioactifs anioniques et non ioniques ;
    (ii) de 10 à 40 % en poids de sels inorganiques choisis parmi : le carbonate de sodium et/ou le sulfate de sodium où au moins 5 % en poids du sel inorganique est un carbonate de sodium ; et,
    dans lequel les sels inorganiques sont présents sur la particule détergente sous forme de revêtement et le tensioactif est présent sous forme de coeur.
  7. Pluralité de particules selon l'une quelconque des revendications précédentes, dans laquelle au moins 90 à 100 % des particules dans les dimensions x, y et z sont dans une variable de 20 % de la plus grosse à la plus petite particule.
EP16719075.0A 2015-07-08 2016-04-27 Grosses particules Active EP3320076B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15175808 2015-07-08
PCT/EP2016/059426 WO2017005386A1 (fr) 2015-07-08 2016-04-27 Grosses particules

Publications (2)

Publication Number Publication Date
EP3320076A1 EP3320076A1 (fr) 2018-05-16
EP3320076B1 true EP3320076B1 (fr) 2019-01-02

Family

ID=53541534

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Application Number Title Priority Date Filing Date
EP16719075.0A Active EP3320076B1 (fr) 2015-07-08 2016-04-27 Grosses particules

Country Status (8)

Country Link
EP (1) EP3320076B1 (fr)
CN (1) CN107771211B (fr)
BR (1) BR112018000313B1 (fr)
CL (1) CL2018000022A1 (fr)
PH (1) PH12017502304A1 (fr)
TR (1) TR201901001T4 (fr)
WO (1) WO2017005386A1 (fr)
ZA (1) ZA201708393B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020109227A1 (fr) 2018-11-28 2020-06-04 Unilever N.V. Grosses particules

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1289155B1 (it) * 1997-01-03 1998-09-29 Ausimont Spa Composizioni granulari di acido e-ftalimmido perossiesanoico
CA2518790C (fr) * 2003-03-11 2012-05-22 Reckitt Benckiser N.V. Emballage contenant une composition detergente
GB2406338A (en) * 2003-09-22 2005-03-30 Reckitt Benckiser Nv Package comprising a detergent composition
ITMI20040498A1 (it) * 2004-03-16 2004-06-16 Solvay Solexis Spa Composizioni granulari
GB0509377D0 (en) * 2005-05-09 2005-06-15 Reckitt Benckiser Nv Detergent composition
PL2627758T3 (pl) * 2010-10-14 2017-05-31 Unilever N.V. Cząstki detergentowe do prania
CN103154225B (zh) * 2010-10-14 2015-02-04 荷兰联合利华有限公司 洗衣洗涤剂颗粒
GB201019628D0 (en) * 2010-11-19 2010-12-29 Reckitt Benckiser Nv Dyed coated bleach materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN107771211B (zh) 2020-07-07
ZA201708393B (en) 2019-06-26
EP3320076A1 (fr) 2018-05-16
TR201901001T4 (tr) 2019-02-21
PH12017502304B1 (en) 2018-06-25
PH12017502304A1 (en) 2018-06-25
CN107771211A (zh) 2018-03-06
WO2017005386A1 (fr) 2017-01-12
CL2018000022A1 (es) 2018-07-06
BR112018000313A2 (pt) 2018-09-04
BR112018000313B1 (pt) 2022-08-30

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