WO2017005386A1 - Large particles - Google Patents
Large particles Download PDFInfo
- Publication number
- WO2017005386A1 WO2017005386A1 PCT/EP2016/059426 EP2016059426W WO2017005386A1 WO 2017005386 A1 WO2017005386 A1 WO 2017005386A1 EP 2016059426 W EP2016059426 W EP 2016059426W WO 2017005386 A1 WO2017005386 A1 WO 2017005386A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- particle
- water
- bleach
- adjunct
- bleach adjunct
- Prior art date
Links
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
- the particle comprises: (i) from 40 to 95 wt % a composition susceptible to aqueous attack, wherein said composition is selected from water-soluble materials, partially water soluble materials, water-dispersible materials, water-disintegrating materials, and mixtures thereof; and, (ii) from 5 to 60 wt % dispersed in the composition susceptible to aqueous attack particles of PAP having a size from 10 micron to 200 microns, preferably 20 to 50 microns, most preferably 20 to 40 microns, wherein when 1 gm of the bleach adjunct particle is dissolved in 100 ml of demineralised water the pH to the solution is in the range from 3 to 6, preferably 3 to 5.
- 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:
- a surfactant selected from: anionic and non-ionic surfactants;
- inorganic salts selected from: sodium carbonate and/or
- adjunct particles sodium sulphate of which at least 5 wt % of the inorganic salt is sodium carbonate; and, wherein the inorganic salts and are present on the detergent particle as a coating and the surfactant is present as a core.
- Other 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 xylan, glucuronoxylan, arabinoxylan, mannan, glucomannan and galactoglucomannan; and natural gums such as pectin, xanthan, and carrageenan, locus bean, arabic, tragacanth; and combinations thereof.
- 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. In one embodiment, the functionalized substrate comprises a PVA film.
- Suitable 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. For instance 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
- polymeric gums which may be used as structurant herein can be characterized as marine plant, terrestrial plant, microbial polysaccharides and
- polysaccharide derivatives examples include 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. Examples of 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
- 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.
- the Coated Detergent Particle 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.
- the coated detergent particle is described in the following patent applications:
- WO2013/149755 describes a process for the preparation of a coated detergent particle.
- WO2013/149753 describes a process for the preparation of a coated detergent particle.
- WO2013/149752 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.
- Citric acid 8% 5% Citric acid 8% 5%. 10% 10%
- 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 1 mm thickness and 5mm diameter.
- a Subsample was added to a screen mill to produce a powder.
- 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 CI 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.
- a further 10ml water was applied to a separate 10x10cm piece of heavy-construct knitted cotton then this was placed on top of the dyed monitor in order to hold the product in position.
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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)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112018000313-1A BR112018000313B1 (en) | 2015-07-08 | 2016-04-27 | WHITENING ADJUVANT PARTICLE, WASHING DETERGENT AND PLURALITY OF PARTICLES |
CN201680036562.9A CN107771211B (en) | 2015-07-08 | 2016-04-27 | Large particle |
EP16719075.0A EP3320076B1 (en) | 2015-07-08 | 2016-04-27 | Large particles |
ZA2017/08393A ZA201708393B (en) | 2015-07-08 | 2017-12-11 | Large particles |
PH12017502304A PH12017502304A1 (en) | 2015-07-08 | 2017-12-14 | Large particles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15175808.3 | 2015-07-08 | ||
EP15175808 | 2015-07-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017005386A1 true WO2017005386A1 (en) | 2017-01-12 |
Family
ID=53541534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2016/059426 WO2017005386A1 (en) | 2015-07-08 | 2016-04-27 | Large particles |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP3320076B1 (en) |
CN (1) | CN107771211B (en) |
BR (1) | BR112018000313B1 (en) |
CL (1) | CL2018000022A1 (en) |
PH (1) | PH12017502304A1 (en) |
TR (1) | TR201901001T4 (en) |
WO (1) | WO2017005386A1 (en) |
ZA (1) | ZA201708393B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020109227A1 (en) | 2018-11-28 | 2020-06-04 | Unilever N.V. | Large particles |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0852259A1 (en) * | 1997-01-03 | 1998-07-08 | Ausimont S.p.A. | Granular compositions of E-phthalimido peroxyhexanoic acid |
WO2004081161A1 (en) * | 2003-03-11 | 2004-09-23 | Reckitt Benckiser N.V. | Package comprising a detergent composition |
GB2406338A (en) * | 2003-09-22 | 2005-03-30 | Reckitt Benckiser Nv | Package comprising a detergent composition |
WO2005090543A1 (en) * | 2004-03-16 | 2005-09-29 | Solvay Solexis S.P.A. | Granular compositions |
WO2006120405A1 (en) * | 2005-05-09 | 2006-11-16 | Reckitt Benckiser N.V. | Detergent composition |
WO2012066344A1 (en) * | 2010-11-19 | 2012-05-24 | Reckitt Benckiser N.V. | Dyed coated bleach materials |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MY164215A (en) * | 2010-10-14 | 2017-11-30 | Unilever Nv | Laundry detergent particles |
WO2012049178A1 (en) * | 2010-10-14 | 2012-04-19 | Unilever Plc | Laundry detergent particles |
-
2016
- 2016-04-27 BR BR112018000313-1A patent/BR112018000313B1/en active IP Right Grant
- 2016-04-27 WO PCT/EP2016/059426 patent/WO2017005386A1/en active Application Filing
- 2016-04-27 EP EP16719075.0A patent/EP3320076B1/en active Active
- 2016-04-27 TR TR2019/01001T patent/TR201901001T4/en unknown
- 2016-04-27 CN CN201680036562.9A patent/CN107771211B/en active Active
-
2017
- 2017-12-11 ZA ZA2017/08393A patent/ZA201708393B/en unknown
- 2017-12-14 PH PH12017502304A patent/PH12017502304A1/en unknown
-
2018
- 2018-01-04 CL CL2018000022A patent/CL2018000022A1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0852259A1 (en) * | 1997-01-03 | 1998-07-08 | Ausimont S.p.A. | Granular compositions of E-phthalimido peroxyhexanoic acid |
WO2004081161A1 (en) * | 2003-03-11 | 2004-09-23 | Reckitt Benckiser N.V. | Package comprising a detergent composition |
GB2406338A (en) * | 2003-09-22 | 2005-03-30 | Reckitt Benckiser Nv | Package comprising a detergent composition |
WO2005090543A1 (en) * | 2004-03-16 | 2005-09-29 | Solvay Solexis S.P.A. | Granular compositions |
WO2006120405A1 (en) * | 2005-05-09 | 2006-11-16 | Reckitt Benckiser N.V. | Detergent composition |
WO2012066344A1 (en) * | 2010-11-19 | 2012-05-24 | Reckitt Benckiser N.V. | Dyed coated bleach materials |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020109227A1 (en) | 2018-11-28 | 2020-06-04 | Unilever N.V. | Large particles |
Also Published As
Publication number | Publication date |
---|---|
ZA201708393B (en) | 2019-06-26 |
BR112018000313A2 (en) | 2018-09-04 |
TR201901001T4 (en) | 2019-02-21 |
CL2018000022A1 (en) | 2018-07-06 |
EP3320076A1 (en) | 2018-05-16 |
BR112018000313B1 (en) | 2022-08-30 |
CN107771211A (en) | 2018-03-06 |
PH12017502304B1 (en) | 2018-06-25 |
CN107771211B (en) | 2020-07-07 |
PH12017502304A1 (en) | 2018-06-25 |
EP3320076B1 (en) | 2019-01-02 |
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