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WO1994007975A1 - Pates de sulfate d'alkyle aqueuses coulantes - Google Patents

Pates de sulfate d'alkyle aqueuses coulantes Download PDF

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Publication number
WO1994007975A1
WO1994007975A1 PCT/EP1993/002509 EP9302509W WO9407975A1 WO 1994007975 A1 WO1994007975 A1 WO 1994007975A1 EP 9302509 W EP9302509 W EP 9302509W WO 9407975 A1 WO9407975 A1 WO 9407975A1
Authority
WO
WIPO (PCT)
Prior art keywords
paste
weight
fatty alcohol
content
sulfate
Prior art date
Application number
PCT/EP1993/002509
Other languages
German (de)
English (en)
Inventor
Rainer Hofmann
Bert Gruber
Original Assignee
Henkel Kommanditgesellschaft Auf Aktien
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
Application filed by Henkel Kommanditgesellschaft Auf Aktien filed Critical Henkel Kommanditgesellschaft Auf Aktien
Priority to KR1019950701130A priority Critical patent/KR950703633A/ko
Priority to EP93920744A priority patent/EP0662116A1/fr
Priority to JP6508634A priority patent/JPH08501597A/ja
Publication of WO1994007975A1 publication Critical patent/WO1994007975A1/fr

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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • 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
    • C11D3/201—Monohydric alcohols linear
    • C11D3/2013—Monohydric alcohols linear fatty or with at least 8 carbon atoms in the alkyl chain
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/146—Sulfuric acid esters
    • 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
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes

Definitions

  • the invention relates to flowable and pumpable aikyl sulfate pastes, a process for the production of aikyl sulfate pastes with improved flow properties and the use of such pastes for the production of detergents and cleaning agents.
  • Anionic surfactants of the alkyl sulfate type especially those containing alkyl radicals with 16 to 18 carbon atoms, show excellent detergent properties and are used in both liquid and powder detergents.
  • aqueous alkyl sulfate pastes For the preparation of such agents, one generally starts from aqueous alkyl sulfate pastes.
  • the aqueous surfactant pastes In order to avoid unnecessary mass transport, it is advantageous if the aqueous surfactant pastes have the highest possible solids content.
  • Aikyl sulfate pastes can, however, only be concentrated up to a certain solids content.
  • such pastes have a non-Newtonian flow behavior. Above a limit of about 55% by weight solids content, the viscosity generally reaches such high values that the pumpability of the surfactant solutions is no longer guaranteed, even at elevated temperatures.
  • aqueous fatty alcohol sulfate pastes with solids contents between 30 and 70% by weight have such high viscosities and flow limits even at ambient temperature that transferring and pumping around are often impossible.
  • European patent EP 24711 proposes adding polyalkyl ether glycol sulfates as viscosity-reducing additives to surfactant concentrates which are difficult to move. While such compounds are well suited to lowering the viscosity of alkyl ether sulfate, alkyl aryl ether sulfate, alkyl benzene sulfonate and alkyl aryl sulfosuccinate solutions, their performance in the presence of alkyl sulfates, especially linear, primary alkyl sulfates, is often unsatisfactory.
  • German patent application DE 34 47859 discloses the use of alkanesulfonates as viscosity regulators for highly viscous anionic surfactant concentrates, especially for salts of ⁇ -sulfofatty acid esters.
  • German patent application DE 37 18 896 describes the use of alkoxylated alcohols as viscosity regulators for highly viscous alkylbenzenesulfonate concentrates.
  • German patent application DE 40 32 910 discloses alkyl sulfate pastes with solids contents of 30 to 80% by weight, the flow properties of which are improved by adding sulfonation products of unsaturated fatty acid glyceride esters in amounts of 1 to 50% by weight, based on the solids content of the pastes become.
  • the object of the invention was to provide aikyl sulfate pastes with high contents of alkyl sulfate, which contain no further surfactants and nevertheless have favorable rheological properties.
  • the invention accordingly relates in a first embodiment to an aqueous, flowable and pumpable alkyl sulfate paste with a surfactant content of 30 to 80% by weight, the paste containing unsulfated fatty alcohols in amounts of 0.5 to 10% by weight, inorganic Contains sulfates not above 0.2 wt .-% and optionally inorganic chlorides and the flow limit of the paste at 60 ° C a maximum of 45 Pa and / or the viscosity of the paste at a shear rate of 10 s ⁇ l and a temperature of 60 ° C maximum 6.5 Pas.
  • alkyl sulfates are known anionic surfactants which are generally prepared by reacting aliphatic primary alcohols with a sulfating reagent, for example sulfur trioxide or chlorosulfonic acid.
  • Preferred alkyl sulfates are derived from fatty alcohols with 12 to 22 carbon atoms. Typical examples of this are lauryl alcohol, Myristyl alcohol, cetyl alcohol, stearyl alcohol and behenyl alcohol.
  • a particularly drastic reduction in the paste viscosity is observed in alkyl sulfates which are derived from alcohols having 12 to 18, in particular 14 to 18 or 16 to 18, carbon atoms.
  • the alkyl sulfates can also be derived from technical alcohol mixtures, such as those obtained in the hydrogenation of technical fatty acid ester mixtures of natural origin or from aldehydes from Roelen's oxosynthesis. Alkyl sulfates based on technical coconut or hydrogenated palm kernel cuts are preferred. Preferred pastes contain 40 to 65 wt.%, In particular 45 to 60 wt.
  • Unsulfated fatty alcohols are primarily linear primary and methyl-branched C12 to C22 ⁇ fatty alcohols in the 2-position.
  • the advantageous viscosity-reducing properties are already achieved when the content of unsulfated fatty alcohols in the pastes is relatively low, preferably 0.7 to 8% by weight and in particular 1 to 5% by weight.
  • Aikyl sulfate pastes usually contain inorganic salts, especially sulfate, resulting from the production.
  • the amount of these inorganic salts is usually not more than 10% by weight, in particular 2 to 5% by weight, in each case based on the paste.
  • the content of the pastes in sodium sulfate can be, for example, 1 to 3% by weight.
  • the pastes can contain up to about 1% by weight or 1.5% by weight of sodium chloride.
  • These inorganic salts generally have a viscosity-increasing effect.
  • pastes which contain inorganic sulfates in amounts not above 0.2% by weight and preferably in amounts not above 0.1% by weight, but which contain unsulfated fatty alcohols in the stated amounts, the pastes have the desired rheological properties Properties on. It was particularly surprising that a content of inorganic chlorides, preferably alkali chlorides and especially sodium chloride or potassium chloride, did not adversely affect the rheological properties of the paste influenced, but on the contrary can reduce viscosity. A content of 0.2 to 5% by weight and in particular 0.5 to 2% by weight of alkali metal chloride is preferred.
  • Such pastes are particularly preferred, the flow limit of which at 60 ° C. is a maximum of 40 Pa and preferably a maximum of 38 Pa and / or the viscosity of the paste at a shear rate of 10 s -1 and a temperature of 60 ° C. a maximum of 6 Pas, preferably a maximum of 5 Pas , amount.
  • the pH of the pastes should be at least 9. Preference is given to pH values between 9 and 14, in particular between 10 and 13.
  • the pastes according to the invention can be prepared, for example, by diluting 90 to 98% by weight aikyl sulfate pastes with water and fatty alcohol and, if appropriate, adding the desired amount of inorganic chloride. It is preferably a paste that is preferably a mixture of either in particular C14-Cis fatty alcohol sulfate or Cis-Ci ⁇ -fatty alcohol sulfate, or only a fatty alcohol sulfate, which is derived from lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol or behenyl alcohol. However, it is also possible that various pastes of the type indicated are first mixed and then diluted as indicated and, if appropriate, chloride is added.
  • a process is preferred in which a paste produced by a conventional process, which normally contains a surfactant between 30 and 80% by weight, preferably not above 60% by weight, initially contains inorganic salts, in particular of Sodium sulfate, essentially freed, the cleaned paste concentrated to a surfactant content of 90 to 98 wt .-% and then adjusted to the desired surfactant content at temperatures between 60 and 100 ° C with an alkaline solution.
  • the inorganic salts can be removed, for example, by recrystallization with ethanol, the inorganic salts precipitating and being separated, for example being able to be filtered off.
  • the highly concentrated, purified surfactant pastes are then obtained by removing ethanol.
  • the setting of a surfactant content from 30 to 80 wt .-%, preferably from 40 to 65 wt .-% and in particular from 45 to 60% by weight, starting from the cleaned, concentrated paste, is preferably carried out at temperatures from 70 to 90 ° C., with the aid of the alkaline solution, which is preferably an aqueous sodium hydroxide solution or an aqueous potassium hydroxide solution pH is adjusted from 9 to 14, preferably from 10 to 13. It is particularly preferred that the pastes are added to the alkaline solution.
  • the alkaline solution which is preferably an aqueous sodium hydroxide solution or an aqueous potassium hydroxide solution pH is adjusted from 9 to 14, preferably from 10 to 13. It is particularly preferred that the pastes are added to the alkaline solution.
  • fatty alcohol content of the pastes produced in this way is less than 0.5% by weight, then the corresponding amounts of fatty alcohol must be added. It is preferred that fatty alcohol is added in such quantities that a fatty alcohol content of 0.7 to 8% by weight and in particular 1 to 5% by weight is set.
  • an inorganic chloride preferably sodium chloride or potassium chloride, is additionally added in amounts such that a chloride content of 0.2 to 5% by weight, preferably 0.5 to 2% by weight , is set.
  • the concentrated aikyl sulfate pastes according to the invention have excellent detergent properties. They are therefore preferably used for the production of liquid and solid detergents and cleaning agents, which also include detergents, and for products for hair and body care.
  • Such liquid agents can easily be prepared by diluting the pastes produced by the process according to the invention with water to the desired active substance concentration.
  • builder substances such as zeolites and phyllosilicates, corrosion inhibitors, bleaching agents, bleach activators, optical brighteners, enzymes, graying inhibitors, antimicrobial active ingredients, water-miscible solvents, abrasives, foam stabilizers, Preservatives, colors and fragrances as well as additional surfactants are possible.
  • Ci6-Ci8 tallow fatty alcohol sulfate paste (sulfopone ( R ) T55, 53% by weight tallow fatty alcohol sulfate, approx. 2% by weight unsulfated fatty alcohol, a maximum of 3% by weight inorganic electrolytes) produced by a customary process (oxidation with sulfur trioxide) such as sodium sulfate and sodium chloride; commercial product of the applicant) was essentially freed from the inorganic electrolytes by recrystallizing three times with ethanol and then concentrated to an approximately 97% by weight surfactant paste which contained less than 1% by weight unsulfated fatty alcohol .
  • This paste was then stirred into an aqueous sodium hydroxide solution while hot, ie above the melting point of the tallow fatty alcohol sulfate, and unsulfated fatty alcohol and sodium chloride were added in quantities such that the resulting pastes Ml and M2 each had 53% by weight tallow fatty alcohol sulfate and M3 54% by weight of tallow fatty alcohol sulfate and the amounts of fatty alcohol or fatty alcohol and sodium chloride given for the agents Ml to M3.
  • the content of sodium sulfate in all 3 agents was less than 0.2% by weight.
  • the pH of the agents was 11 in each case.
  • the agents M1 to M3 according to the invention had both a lower yield point and a lower viscosity than the commercially available sulfopone ( R ) T55 paste (see table).

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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)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention vise à réaliser des pâtes de sulfate d'alkyle aqueuses, coulantes et pompables ayant une teneur en tensioactif comprise entre 30 et 80% en poids, présentant de bonnes propriétés rhéologiques , mais ne contenant pas d'autres tensioactifs pour réduire la viscosité. Le but est atteint avec des pâtes de tensioactif qui contiennent entre 0,5 et 10 % en poids d'alcools gras non sulfonatés, une proportion de sulfates inorganiques n'excédant pas 0,2 % en poids, ainsi qu'éventuellement des chlorides inorganiques. La limite d'écoulement de ce type de pâte est au maximum de 45 Pa à 60 °C et/ou sa viscosité est au maximum de 6,5 Pa.s pour une vitesse de cisaillement de 10 s-1 et une température de 60 °C.
PCT/EP1993/002509 1992-09-25 1993-09-16 Pates de sulfate d'alkyle aqueuses coulantes WO1994007975A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1019950701130A KR950703633A (ko) 1992-09-25 1993-09-16 유동성 함수의 알킬 술페이트 페이스트(free-flowing aqueous alkyl sulphate pastes)
EP93920744A EP0662116A1 (fr) 1992-09-25 1993-09-16 Pates de sulfate d'alkyle aqueuses coulantes
JP6508634A JPH08501597A (ja) 1992-09-25 1993-09-16 流動性のある水性アルキルスルフェートペースト

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4232166A DE4232166A1 (de) 1992-09-25 1992-09-25 Fließfähige wäßrige Alkylsulfatpasten
DEP4232166.2 1992-09-25

Publications (1)

Publication Number Publication Date
WO1994007975A1 true WO1994007975A1 (fr) 1994-04-14

Family

ID=6468841

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/002509 WO1994007975A1 (fr) 1992-09-25 1993-09-16 Pates de sulfate d'alkyle aqueuses coulantes

Country Status (5)

Country Link
EP (1) EP0662116A1 (fr)
JP (1) JPH08501597A (fr)
KR (1) KR950703633A (fr)
DE (1) DE4232166A1 (fr)
WO (1) WO1994007975A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0839898A1 (fr) * 1996-11-04 1998-05-06 The Procter & Gamble Company Compositions de nettoyage à épaississement propre
EP2136386B1 (fr) * 2008-03-12 2012-11-07 Panasonic Corporation Procédé de fabrication d'écran plasma

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10046363A1 (de) * 2000-09-20 2002-03-28 Cognis Deutschland Gmbh Fließfähige wässrige Fettalkoholsulfatpasten

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE665927A (fr) * 1964-06-27 1965-10-18
SU488786A1 (ru) * 1973-06-22 1975-10-25 Славянский Общетехнический Факультет Украинского Заочного Политехнического Института Способ приготовлени рассола
WO1992007054A1 (fr) * 1990-10-17 1992-04-30 Henkel Kommanditgesellschaft Auf Aktien Procede de production de pates en sulfate d'alkyle a fluidite amelioree
WO1992014809A1 (fr) * 1991-02-25 1992-09-03 Henkel Kommanditgesellschaft Auf Aktien Procede de production de pates de sulfate d'alkyle et/ou d'alcenyle a fluidite amelioree

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE665927A (fr) * 1964-06-27 1965-10-18
SU488786A1 (ru) * 1973-06-22 1975-10-25 Славянский Общетехнический Факультет Украинского Заочного Политехнического Института Способ приготовлени рассола
WO1992007054A1 (fr) * 1990-10-17 1992-04-30 Henkel Kommanditgesellschaft Auf Aktien Procede de production de pates en sulfate d'alkyle a fluidite amelioree
WO1992014809A1 (fr) * 1991-02-25 1992-09-03 Henkel Kommanditgesellschaft Auf Aktien Procede de production de pates de sulfate d'alkyle et/ou d'alcenyle a fluidite amelioree

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 7635, Derwent World Patents Index; Class E34, AN 76-66309X *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0839898A1 (fr) * 1996-11-04 1998-05-06 The Procter & Gamble Company Compositions de nettoyage à épaississement propre
EP2136386B1 (fr) * 2008-03-12 2012-11-07 Panasonic Corporation Procédé de fabrication d'écran plasma

Also Published As

Publication number Publication date
EP0662116A1 (fr) 1995-07-12
KR950703633A (ko) 1995-09-20
JPH08501597A (ja) 1996-02-20
DE4232166A1 (de) 1994-03-31

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