EP1098954A1 - Compositions adoucissantes contenant un polymere de diurethane comme epaississant - Google Patents

Compositions adoucissantes contenant un polymere de diurethane comme epaississant

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Publication number
EP1098954A1
EP1098954A1 EP99935706A EP99935706A EP1098954A1 EP 1098954 A1 EP1098954 A1 EP 1098954A1 EP 99935706 A EP99935706 A EP 99935706A EP 99935706 A EP99935706 A EP 99935706A EP 1098954 A1 EP1098954 A1 EP 1098954A1
Authority
EP
European Patent Office
Prior art keywords
fabric softening
composition
group
polymer
carbon atoms
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.)
Withdrawn
Application number
EP99935706A
Other languages
German (de)
English (en)
Inventor
Eric Ewbank
Catherine Collard
Dominique Tummers
Ericka Breuer
Eric Thibert
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.)
Colgate Palmolive Co
Original Assignee
Colgate Palmolive Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US09/119,514 external-priority patent/US5939377A/en
Application filed by Colgate Palmolive Co filed Critical Colgate Palmolive Co
Publication of EP1098954A1 publication Critical patent/EP1098954A1/fr
Withdrawn legal-status Critical Current

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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium compounds
    • 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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/001—Softening compositions
    • C11D3/0015—Softening compositions liquid
    • 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
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3726—Polyurethanes

Definitions

  • This invention relates to liquid fabric softening compositions and to a process for treating fabrics therewith. More particularly, the invention relates to fabric softening compositions which comprise an effective amount of a fatty alcohol ethoxylate- diurethane polymer as herein defined to thicken the composition to a commercially desirable viscosity without adversely affecting the physical stability of the composition over long-term storage, even at highly acidic pH conditions.
  • the softening composition is thickened with polymeric thickeners, such as polyvinylacetate, polyacrylamide and mixtures of guar gum with xanthan gum.
  • polymeric thickeners such as polyvinylacetate, polyacrylamide and mixtures of guar gum with xanthan gum.
  • EP 331237 describes an aqueous fabric conditioning composition comprising a fabric softener and a hydrophobically modified nonionic cellulose ether.
  • EP 385749 describes aqueous fabric conditioning compositions containing as a thickener a hydrophobically modified nonionic polymer having a hydrophobic backbone and at least two hydrophobic groups per molecule attached to the backbone. Described in particular are (i) copolymers of ethylene oxide and/or propylene oxide with small amounts of C8-C24 side chains; (ii) hydrophobically modified poly(ethylene oxide
  • the present invention provides a stable, pourable and water-dispersible liquid
  • fabric softening composition comprising:
  • R and R are independently H, methyl or ethyl; x and y are integers from 0 to
  • R 3 and R 5 are each independently
  • R 4 is a linear or
  • composition but which does not contain the polymer component (c).
  • the present invention is predicated on the discovery that the incorporation of a fatty alcohol ethoxylate-diurethane polymer as herein claimed in an aqueous fabric softener composition increases the viscosity of the resulting composition to provide commercially desirable viscosities in the range of about 100-1000 cPs, and more preferably about 100-600 cPs such that the final composition is readily pourable without adversely affecting product stability.
  • This viscosity increase can be accomplished over a wide range of softener concentration including highly concentrated compositions and over a wide range of product pH including low pH compositions of about 2.5 or lower, which may result from the introduction of strong or weak acids into the aqueous phase.
  • This type of diurethane polymer is able to function in low pH, acidic compositions where conventional polymeric thickeners are generally inoperative.
  • the polymeric thickeners as herein described function as cross-linking materials between individual surfactant structures in aqueous medium.
  • the increase in product viscosity is believed to be due to the formation of lipophilic bridges between various cationic surfactant structures.
  • Polymers which manifest this type of rheological behavior are termed in the art associative thickeners.
  • the preferred polymeric thickeners for use herein are sold by BASF under the code names 71495; 71496; and 71497. The various code names refer to different solvent systems for the active polymers.
  • code name 71495 is a 50% active system of polymer in water/isopropanol (3:2 weight ratio); code name 71496 refers to a 25% active solution of polymer in a solvent system of water/butyl diglycol (80:20); and code name 71497 refers to a 25% active polymer in water/propane-1.2- diol/isopropanol.
  • the associative polymers of the invention which are used to effectively thicken fabric softening compositions are fatty alcohol ethoxylate-diurethane polymers having the structure described in Formula I above.
  • R and R are fatty alcohol ethoxylate-diurethane polymers having the structure described in Formula I above.
  • R 3 and R 5 are each independently an alkyl or an alkenyl group having from 12 to 18 carbon atoms;
  • R 4 is a linear alkyl group having 2 to 10 carbon atoms, more preferably 4 to 8 carbon atoms, and most preferably 6 carbon atoms; and the value of x + y is on average from about 50 to 150.
  • the level of polymer in the softening composition will generally vary from about 0.02 to 3.0%, by weight, and preferably from about 0.05 to 1.5%, by weight of the composition.
  • the fatty alcohol ethoxylate diurethane polymers of the invention are prepared
  • the polyisocyanate used for the preparation of the polymer is preferably a diisocyanate.
  • Higher functionality polyisocyanates may also be used, but only in minor amounts relative to the diisocyanate compound in order to limit the crosslinking reaction between polymer chains which may result in the production of an insoluble gel which is unsuitable for the purposes of this invention.
  • Suitable diisocyanates may be aliphatic, cycloaliphatic or aromatic such as the following:
  • Mixtures of 2 or more of the above mentioned diisocyanates are also suitable for the synthesis of the thickener .
  • the polyether polyol is generally selected from among compounds such as polyethylene glycol and ethylene oxide-propylene oxide block polymer.
  • Preferred polyether polyols are polyethylene glycol having an average molecular weight ranging from 800 to 12,000. More preferred are polyethylene glycol with an average molecular weight from about 1 ,500 to about 8,000.
  • the monofunctional capping agent is typically a fatty alcohol such as decanol, dodecanol, tetradecanol, hexadecanol, octadecanol and their blends such as those derived from the natural sources of fatty alkyl compounds.
  • the fabric softening compound which is useful in the compositions of the invention is a fabric substantive quaternary ammonium compound or an amine compound suitable for conditioning fabrics.
  • a preferred softening compound is a biodegradable fatty ester quaternary ammonium compound of Formula II:
  • each R4 independently represents an aliphatic hydrocarbon group having from 8 to 22 carbon atoms
  • R5 represents (CH2)s-R7 where R7 represents an alkoxy carbonyl group containing from 8 to 22 carbon atoms, benzyl, phenyl, (C-1-C4) - alkyl substituted phenyl, OH or H
  • R5 represents (CH2)t Rs where R ⁇ represents benzyl, phenyl, (C1-C4) alkyl substituted phenyl, OH or H
  • q, r, s and t each independently, represent a number of from 1 to 3
  • x is an anion of valence a.
  • the fatty ester quaternary compounds are preferably diester compounds, i.e. R7 represents benzyl, phenyl, phenyl substituted by C-1-C4 alkyl, hydroxyl (OH) or hydrogen (H). Most preferably R7 represent OH or H, especially preferably OH, e.g. R5 is hydroxyethyl.
  • q, r and s, each, independently, represents a number of from 1 to 3.
  • X represents a counter ion of valence a.
  • the diester quat may be a compound of the formula:
  • each R4 may be, for example, derived from hard or soft tallow, coco, stearyl, oleyl, and the like.
  • Such compounds are commercially available, for example, Tetranyl AT1 -75, from Kao Corp. Japan, which is di-tallow ester triethanol amine quaternary ammonium methyl sulfate.
  • Tetranyl AT1 -75 is based on a mixture of about 25% hard tallow and about 75% soft tallow.
  • a second example would be Hipochem X-89107, from High Point Chemical Corporation.
  • Another preferred fabric softening compound is an amido (or ester) tertiary amine which is an inorganic or organic acid salt of Formula (III):
  • R- ⁇ and R2 independently represent C12 to C30 aliphatic hydrocarbon groups
  • R3 represents (CH2CH2 ⁇ )pH, CH3 or H
  • T represents NH
  • n is an integer from 1 to 5
  • m is an integer from 1 to 5
  • p 1 to 10.
  • R3 in formula (III) represents (CH2CH2 ⁇ ) p H, CH3, or H, or mixtures thereof.
  • R3 represents the preferred (CH2CH2 ⁇ )pH group
  • p is a positive number representing the average degree of ethoxylation, and is preferably from 1 to 10, especially 1.4 to 6, and more preferably from about 1.5 to 4, and most preferably, from 1.5 to 3.0.
  • n and m are integers of from 1 to 5, preferably 1 to 3, especially 2.
  • the amine function of the amidoamine or ester amine compound is at least partially neutralized by a proton contributed by a dissociable acid, which may be inorganic, e.g., HCI, H2SO4, HNO3, etc. or organic, e.g. acetic acid, propionic acid, lactic acid, citric acid, glycolic acid, toluene sulfonic acid, maleic acid, fumaric acid, and the like.
  • a dissociable acid which may be inorganic, e.g., HCI, H2SO4, HNO3, etc. or organic, e.g. acetic acid, propionic acid, lactic acid, citric acid, glycolic acid, toluene sulfonic acid, maleic acid, fumaric acid, and the like.
  • Mixtures of these acids may also be used, as may any other acid capable of neutralizing the amine function.
  • the acid neutralized compound is believed to form a reversible complex, that is, the bond between the amine function and proton will disappear under alkaline pH conditions. This is in contrast to quaternization, e.g., with a methyl group, wherein the quatemizing group is covalently bonded to the positively charged amine nitrogen and is essentially pH independent.
  • the amount of acid used will depend on the "strength" of the acid; strong acids such as HCI, and H2SO4 completely dissociate in water, and, therefore, provide a high amount of free protons (H+), while weaker acids, such as citric acid, glycolic acid, lactic acid, and other organic acids, do not dissociate completely and, therefore, require a higher concentration to achieve the same neutralizing effect.
  • weaker acids such as citric acid, glycolic acid, lactic acid, and other organic acids
  • HCI is especially preferred.
  • the amount of acid used for neutralization should be sufficient to provide at least an 0.5:1 molar ratio, and up to about a 1 :1 molar ratio of the acid to the total amount of fabric softener fatty amide or ester tertiary amine.
  • the organic carboxylic acids it is preferred to use a molar excess of the neutralizing acid.
  • Molar ratios of organic carboxylic acid to the compound of formula (III) up to about 6:1 up to about 6:1 , for example from 1.5:1 to 6:1 , such as 2:1 , 3:1 or 4:1 , have been found advantageous in terms of stability and/or softening performance.
  • the use of glycolic in molar excess is especially preferred.
  • the co-softening ingredient useful in the softening compositions of the invention include glycerol esters, such as, glycerol monostearate and glycerol mono-oleate; sorbitan esters such as sorbitan monostearate, sorbitan tristearate, sorbitan mono-oleate and sorbitan trioleate; and fatty alcohols, such as C 16 -C 18 fatty alcohols.
  • the emulsifier used in the present fabric softening compositions is required to stabilize the composition and prevent phase separation and/or an unstable viscosity over a period of at least several months.
  • the fatty alcohol ethoxylates useful in the invention correspond to ethylene oxide condensation products of higher fatty alcohols, with the higher fatty alcohol being of from about 9 to 15 carbon atoms and the number of ethylene oxide groups per mole being from about 10 to 30.
  • the alkyl chain length ranges from about 13 to 15 carbon atoms and the number of ethylene groups ranges from about 15 to 20 per mole.
  • Synperonic A20 manufactured by ICI Chemicals, such nonionic surfactant being an ethoxylated C13-C15 fatty alcohol with 20 moles of ethylene oxide per mole of alcohol and having an HLB of 8.25.
  • EO/PO fatty alcohols available from BASF having the general formula (IV): R3
  • R-( is an alkyl group having 8 to 22 carbon atoms;
  • R2 and R3 are CH3 or CH2-CH3; and
  • a, b, c and d are each independently integers from 0 to 30.
  • Preferred emulsifiers of this type are available from BASF under the tradenames Plurafac LF132 and Plurafac LF231. Test Methodology
  • the active ingredients are each melted and mixed with stirring and the resulting mixture maintained at 60-65°C.
  • the emulsion is allowed to cool to 20-25°C.
  • Perfume where used, is added to the molten mixture just prior to emulsification with the aqueous phase.
  • the sequestrant if required, (such as Dequest 2000 sold by Solutia) is introduced into the heated water at 60°C.
  • the pH of the composition is adjusted, if necessary, by the addition of a mineral acid such as HCI, or an organic acid, such as citric acid.
  • a mineral acid such as HCI
  • an organic acid such as citric acid.
  • high shear mixing is required in order to reduce the size of the emulsion droplets to the range of 0.2 to 8.0 microns.
  • Suitable high shear mixers for this purpose are High Pressure Homogenizer, or Silverson blade mixer or Ultra Turrax Homogenizer.
  • Adjuvant ingredients such as colorants, preservatives, salts and/or polyelectrolytes are all added with stirring (e.g. 4-pitched blade propeller) into the cold emulsion.
  • Viscosity of the softening compositions was measured with a Brookfield Viscosimeter Model DV-II operating at 50 rpm. Spindle #2 was used for viscosity measurements below 800 centipoises. Spindle #3 was used for measurements from 800 to 2000 centipoises.
  • the physical stability of a product is evaluated by ageing tests conducted at 4°C, RT (ambient temperature), 35°C and 43°C. The presence of gelification and/or phase separation is monitored at the aforementioned temperatures after 2, 4 and 6 weeks.
  • Example 1 Following the test methodology described above, two softening compositions A and B were prepared for comparative purposes in the absence of the fatty alcohol ethoxylate-diurethane polymeric thickener of the invention. The compositions are described in Table 1.
  • compositions A and B there was added increasing levels of BASF polymer #71496, a polymeric thickener in accordance with the invention.
  • Product viscosities were then measured at RT, one day after making, using a Brookfield Viscosimeter. The results are shown in Table 2.
  • compositions A and B were thickened by the addition of the diurethane polymer of the invention.
  • the viscosity achieved was directly related to the level of polymer added to the composition.
  • Example 2 The purpo.se of this Example was to measure the effect of product pH on the thickening performance of the diurethane polymer of the invention in a softening composition of the invention.
  • Comparative composition B described in Example 1 had a final product pH of 2.5. Using a 10% hydrochloric acid solution to adjust the product pH, several samples of composition B were adjusted, respectively to pH values of 2.3; 2.0; and 1.8.
  • BASF polymer 71496 was introduced at a level of 0.3% (as is) (0.075% active material) to form fabric softening compositions of the invention.
  • the product viscosity was measured the day after making and again after 2 and 6 weeks of storage at RT.
  • Product stability was evaluated over a 6 week period of storage at 4°, RT, 35° and 43°. The results are shown in Table 3.
  • Viscosity measurements were conducted on products stored at RT.
  • the BASF diurethane polymer is seen to provide an increased thickening effect as the pH of the softening composition decreases.
  • the polymers of the invention are effective thickeners for softening compositions formulated at acid pH conditions.
  • Example 3 Following the procedure of Example 2 a comparative experiment was conducted to measure the thickening properties and product stability which result from the use of a commercially available associative polymer, Rheolate 255 manufactured by Rheox Inc., which is not in accordance with the invention, in place of the BASF polymer used in Example 2.
  • a 10% hydrochloric acid solution was used to adjust the product pH to values of 2.5 and 2.3, respectively, after the dispersion of 0.075 wt. % of active material of both of the individual polymers into samples of the comparative base composition B.
  • Product viscosity was measured at RT one day after making of the product.
  • Product stability was judged over a 6 week period of storage of the respective samples at 4°, RT, 35° and 43°C. The results are shown in Table 4.
  • Example 4 The purpose of this example was to compare the performance of a polymeric thickener of the invention (BASF 71496) in a highly concentrated composition versus the performance of a swelling cross-linked polymer of the prior art (BP #7050 polymer ex BP Chemical).
  • a base composition (Base C) was prepared according to the test methodology described above consisting of 15.53 wt% esterquat (Tetranyl AT1-75), 3.3 wt% C 16 - 18 fatty alcohol, 1.28 wt% of a fragrance, 0.25 wt% of a lactic/lactate solution (80% active), 0.1 wt% Dequest 2000, 0.016 wt% of a colorant (Liquint Royal blue ex Milliken) and water to balance. As required for highly concentrated product, the base composition was subjected to high shear on a High Pressure Homogenizer (HPH).
  • HPH High Pressure Homogenizer

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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)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

La présente invention concerne une composition adoucissante liquide stable, coulante et dispersable dans l'eau comprenant (a) entre environ 2 % et environ 25 % d'un ou plusieurs composés adoucissants choisis parmi des composés d'ammonium quaternaire et des composés d'amine; (b) entre environ 0 % et environ 10 % d'un ingrédient co-adoucissant; et (c) entre environ 0,02 % et environ 3 % d'un polymère d'éthoxylate d'alcool gras-diuréthane déterminé comme épaississant afin d'obtenir les viscosités nécessaires à la commercialisation sans pour autant altérer la stabilité physique de la composition. Le reste de la composition comprend de l'eau et des ingrédients facultatifs tels qu'un acide, un émulsifiant et des adjuvants.
EP99935706A 1998-07-20 1999-07-19 Compositions adoucissantes contenant un polymere de diurethane comme epaississant Withdrawn EP1098954A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US159359 1980-06-13
US119514 1993-09-10
US09/119,514 US5939377A (en) 1998-07-20 1998-07-20 Liquid fabric softening compositions containing a fatty alcohol ethoxylate diurethane polymer as a thickener
US09/159,359 US6001797A (en) 1998-07-20 1998-09-23 Liquid fabric softening compositions containing a fatty alcohol ethoxylate diurethane polymer as a thickener
PCT/US1999/016327 WO2000004118A1 (fr) 1998-07-20 1999-07-19 Compositions adoucissantes contenant un polymere de diurethane comme epaississant

Publications (1)

Publication Number Publication Date
EP1098954A1 true EP1098954A1 (fr) 2001-05-16

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EP99935706A Withdrawn EP1098954A1 (fr) 1998-07-20 1999-07-19 Compositions adoucissantes contenant un polymere de diurethane comme epaississant

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EP (1) EP1098954A1 (fr)
AU (1) AU5113099A (fr)
WO (1) WO2000004118A1 (fr)

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
US20050058673A1 (en) * 2003-09-09 2005-03-17 3M Innovative Properties Company Antimicrobial compositions and methods
KR20070113281A (ko) 2005-03-10 2007-11-28 쓰리엠 이노베이티브 프로퍼티즈 컴파니 항미생물성 조성물 및 방법
EP3025704B1 (fr) 2005-03-10 2019-01-16 3M Innovative Properties Company Procédés de réduction de contamination microbienne
CN101213283B (zh) * 2005-04-18 2012-03-07 宝洁公司 包含增稠剂的稀释织物护理组合物和在存在阴离子残留物情况下使用的织物护理组合物
GB0512095D0 (en) 2005-06-14 2005-07-20 Unilever Plc Fabric softening composition
EP1849855A1 (fr) * 2006-04-27 2007-10-31 Degussa GmbH Compositions assouplissantes thixotropiques
US8603961B2 (en) * 2010-12-01 2013-12-10 The Procter & Gamble Company Method of making a fabric care composition
CN103228773A (zh) 2010-12-03 2013-07-31 荷兰联合利华有限公司 织物调理剂

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DE3630319A1 (de) * 1986-09-05 1988-03-10 Akzo Gmbh Verdickungsmittel
DE9107984U1 (de) * 1991-06-28 1992-10-29 Joh. A. Benckiser Gmbh, 6700 Ludwigshafen Flüssiges, wäßriges, viskoses Tensidsystem
US5534182A (en) * 1993-07-12 1996-07-09 Rohm And Haas Company Process and laundry formulations for preventing the transfer of dye in laundry processes

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Publication number Publication date
WO2000004118A1 (fr) 2000-01-27
AU5113099A (en) 2000-02-07

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