EP1109883A2 - Verfahren zur effizienzsteigerung von tensiden und verfahren zur unterdrückung lamellarer mesophasen in mikroemulsionen sowie ein tensid, welchem ein additiv beigefügt ist - Google Patents
Verfahren zur effizienzsteigerung von tensiden und verfahren zur unterdrückung lamellarer mesophasen in mikroemulsionen sowie ein tensid, welchem ein additiv beigefügt istInfo
- Publication number
- EP1109883A2 EP1109883A2 EP99953661A EP99953661A EP1109883A2 EP 1109883 A2 EP1109883 A2 EP 1109883A2 EP 99953661 A EP99953661 A EP 99953661A EP 99953661 A EP99953661 A EP 99953661A EP 1109883 A2 EP1109883 A2 EP 1109883A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- block
- water
- surfactant
- block copolymer
- soluble
- 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.)
- Granted
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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/37—Polymers
- C11D3/3788—Graft polymers
-
- 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
- C11D17/0017—Multi-phase liquid compositions
- C11D17/0021—Aqueous microemulsions
-
- 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
- C11D17/0026—Structured liquid compositions, e.g. liquid crystalline phases or network containing non-Newtonian phase
-
- 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
Definitions
- the invention relates to a method for increasing the efficiency of surfactants with simultaneous suppression of lamellar mesophases, in particular in microemulsions and emulsions, and to surfactants to which an additive is added.
- emulsions and microemulsions are stabilized by nonionic, anionic or cationic surfactants.
- the surfactants are able to solubilize a non-polar solvent (oil) in a polar solvent (eg water) or water in oil.
- the efficiency of the surfactants is expressed in the amount of surfactant required to add a certain amount of oil in water or vice versa to solubilize.
- water-oil-surfactant mixtures between emulsions and microemulsions. While microemulsions are thermodynamically stable, emulsions are thermodynamically unstable and disintegrate. In the microscopic range, this difference is reflected in the fact that the emulsified liquids in microemulsions are contained in smaller liquid volumes (e.g. 10 -15 ⁇ l) than in emulsions (e.g. 10-12).
- Thermodynamically unstable emulsions therefore have larger structure sizes.
- Lamellar mesophases can occur in microemulsion systems. Lamellar mesophases lead to optical anisotropy and increased viscosity. These properties are e.g. undesirable for detergents because the lamellar mesophases cannot be washed out.
- additives generally influence the temperature behavior of the emulsions and microemulsions. A shift in the single-phase areas for oil-water-surfactant mixtures to other temperature ranges can be observed in the phase diagram when an additive is added. The shifts can be on the order of 10 ° C. However, this has the consequence that e.g. Detergent formulations have to be changed in order to adapt them to the new temperature behavior of the single-phase area.
- the temperature behavior of the emulsions and microemulsions should remain unaffected by the addition of the additive, that is to say the position of the single-phase region in the phase diagram should essentially not be influenced by the addition of the additives with respect to the temperature.
- An additive is to be created which does not influence the position of the single-phase region with regard to the temperature.
- the aim is also to provide an additive which has the advantages mentioned above and can be added to a detergent, for example, without having to change the formulation of the remaining detergent formulation.
- a possibility is to be created to produce microemulsions whose size of the emulsified liquid particles corresponds to that of emulsions.
- the position of the single-phase area in the phase diagram in the temperature area is not changed by adding the AB block copolymer to the water-oil-surfactant mixture, the efficiency of the surfactant mixture is increased considerably, lamellar mesophases are suppressed in microemulsions and the interface
- the tension between water and oil is reduced more than by the tensides alone.
- microemulsions retain their characteristic properties while increasing their structural size; the emulsified structures take on sizes of up to approx. 2000 angstroms.
- a microemulsion is thus obtained which has the structure sizes of an emulsion but is thermodynamically stable.
- the size of the emulsified liquid particles depends on the temperature and the amount of block copolymer added, and thus on the composition of the surfactant mixture.
- Blocks A and B can assume molecular weights between 500 u and 60,000 u.
- a polyethylene oxide (PEO) block is preferably used as block A.
- all blocks A which are water-soluble can be used, so that they form an amphiphile in conjunction with block B.
- PEO polyethylene oxide
- block A polyacrylic acid, polymethacrylic acid, polystyrene sulfonic acid and their alkali metal salts, in which the acid function has been at least partially replaced by alkali metal cations, can also be mentioned as examples of polyvinylpyridine and polyvinyl alcohol, polymethylvinylyl ether, polyvinylpyrrolidine, polysaccharides and mixtures thereof.
- Block B various water-insoluble components of the stated molecular weight are used.
- Block B can be the product of an anionic 1,2-, 3,4-polymerization or 1,4-polymerization of dienes.
- block B can also be the product of an at least partial hydrogenation of the polydienes.
- Typical monomeric constituents are 1,3 butadiene, isoprene, all constituents of dimethyl butadiene, 1.3 pentadiene, 2.4 hexadienes, ⁇ methylstyrene, isobutylene, ethylene, propylene, styrene or alkyl acrylates and alkyl methacrylates, the alkyl group between 2 contains 20 carbon atoms.
- Block B can also be polydimethylsiloxane. The polymer of a single monomer or a monomer mixture can be used as block B.
- Block B can have methyl, ethyl, vinyl, phenyl or benzyl groups as side chains.
- the double bonds in the polydiene chain as well as in the vinyl groups, which can exist as a side chain, can be either completely or partially hydrogenated.
- any sufficiently amphiphilic block copolymer can be used in the present invention.
- the AB block copolymers used according to the invention can preferably be obtained from an anionic polymerization. With lower molecular weights of blocks A and B in the order of about 500-5000 g / mol for blocks A and B, particularly advantageous properties of the AB block copolymers according to the invention are observed in application products. The polymers with these low molecular weights dissolve quickly and well. This applies, for example, to solutions in soaps and detergents.
- Block A should be as polar as possible and block B as non-polar as possible. This increases the amphiphilic behavior.
- Block A should be water-soluble and Block B should be soluble in non-polar media.
- Block B is advantageously soluble in mineral oils or aliphatic hydrocarbons or in mineral oils and aliphatic hydrocarbons. This also applies at room temperature.
- AB block copolymers of the ABA and BAB types which are referred to as triblock copolymers, can also be used.
- Anionic surfactants e.g. AOT (sodium bis (2-ethylhexyl) sulfosuccinate)
- C any surfactant, such as anionic, cationic, nonionic surfactant or sugar surfactant, and mixtures thereof which contain at least two surfactants.
- ⁇ total surfactant concentration at the crossing point where the single-phase meets the three-phase area in the phase diagram. For a given water / oil ratio, this corresponds minimally to the total surfactant concentration required for complete solubilization of water and oil.
- PX / Y additive with a molecular weight in lOOOg / mol X of a hydrophobic alkyl chain (hydrogenated 1,4-polyisoprene) and a molecular weight in lOOOg / mol Y of polyethylene oxide.
- the alkyl chain has a molecular weight of 22000 g / mol and the polyethylene oxide chain has a molecular weight of 15000 g / mol.
- the additives shown in this way are AB block copolymers.
- the compounds shown here as examples can be obtained by the production process from DE 196 34 477 AI.
- Fig.l Typical temperature / surfactant concentration section through the phase prism at a constant water / oil ratio for the H 2 0-tetradecane-C 6 E 2 system for comparison.
- Fig. 2 The single-phase areas for the mixture water / n-dean-C 10 E 4 -P5 / 5 as a function of the addition P5 / 5 ( ⁇ ) in a temperature / surfactant concentration diagram.
- Fig. 4 The single-phase areas for the mixture water / n-dean-C 10 E 4 -P22 / 22 as a function of the addition P22 / 22 ( ⁇ ) in a temperature / surfactant concentration diagram.
- Fig. 5 The single-phase areas for the mixture water / n-dean-C 10 E 4 -P5 / 3 as a function of the addition of P5 / 3 ( ⁇ ) and P5 / 2 ( ⁇ ) in a temperature / surfactant concentration diagram.
- Fig. 6 The single-phase areas for the mixture water / n-dean-C 10 E 4 -P22 / 15 as a function of the addition P22 / 15 ( ⁇ ) in a temperature / surfactant concentration diagram.
- Fig. 8 The single-phase areas for the mixture water / n-dean-C 10 E 4 -P5 / 30 as a function of the addition P5 / 30 ( ⁇ ) in a temperature / surfactant concentration diagram.
- Fig. 9 The single-phase areas for the mixture (water + NaCl) / n-decane-AOT-P5 / 5 as a function of the addition P5 / 5 ( ⁇ ) in a temperature / surfactant concentration diagram.
- CgG- L is a sugar amphiphile.
- Fig. 11 Overview: ⁇ as a function of ⁇ for the different water / n-dean-C 10 E 4 -Px / y systems.
- Fig. 13 single-phase areas for the systems H 2 0-n-dean C 10 E 4 - P22 / 22 (open circles) and H 2 0-n-dean-C 10 E 4 -Pl / l (black diamonds) depending from ⁇ .
- PS1 polystyrene with molecular weight 10000g / mol
- PEOl polyethylene oxide with molecular weight 10000g / mol; (AB block copolymer)) in one temperature / Surfactant concentration diagram.
- the ratio H 2 0 / cyclohexane is 1: 1.
- the H 2 ⁇ / n-dean ratios realized in FIGS. 1 to 9 and 11 to 13 are 1: 1.
- FIG. 1 shows the type of phase diagram according to the prior art, which provides the basis for FIGS. 1 to 8.
- the temperature T is plotted against the total surfactant concentration ⁇ for the water / n-tetradecane-C 3 E 2 system and a water / n-tetradecane ratio of 1: 1.
- the single phase area 1 of the mixture is located. This area is followed in the direction of smaller surfactant concentrations.
- NEN a closed three-phase area 3.
- the T / ⁇ diagrams shown in FIGS. 2 to 9 relate to systems with a constant water / oil volume ratio of 1: 1 and are to be explained in general below.
- Figure 2 shows how the efficiency of the total surfactant increases with the addition of the block copolymer.
- the position of the effectiveness of the surfactant C with respect to its application temperature is essentially invariant.
- no lamellar mesophases occur in the mixtures examined.
- the efficiency of the total surfactant is also increased in the example shown in FIG. 4 and the temperature is essentially maintained. Lamellar phases are not observed.
- FIGS. 7 and 8 A significant increase in efficiency can also be observed in FIGS. 7 and 8. Furthermore, no lamellar phases occur in the experiments shown in FIGS. 7 and 8. In Figure 7, the gray dots are PI5 / PE015 and the triangles P5 / 15. While the increase in efficiency of the nonionic surfactant C 10 E 4 was documented by the addition of block copolymers in FIGS. 2-8, the increase in efficiency in an anionic surfactant system (water + NaCl) / n-decane-AOT-P5 / 5 is shown in FIG. 9 .
- FIG. 11 documents in an overview the very strong increase in efficiency of the block copolymer admixtures according to the invention.
- the total surfactant concentrations at the crossing point ⁇ are plotted as a function of the addition ⁇ of the block copolymer.
- interfacial tension is shown as a function of temperature for the water / n-dean-C 10 E 4 -P5 / 5 system.
- the value of the interfacial tension minimum drops by a factor of five even at a ⁇ of 0.05.
- the interfacial tension of surfactants such as, for example, anionic, cationic and nonionic surfactants, sugar surfactants or technical surfactant mixtures, is reduced.
- the appearance of lamellar mesophases is suppressed.
- the temperature behavior of the microemulsions remains unchanged, ie the position of the single-phase area with respect to the temperature in the phase diagram is not influenced by the addition of the additives used according to the invention. Therefore, the formulation of a detergent does not have to be changed in order to bring about a constant position of the single-phase area with respect to the temperature in the single-phase diagram.
- the AB block copolymers according to the invention can not only be used in detergents; they can also have the same effect, for example, as additives in foods and cosmetics and in all industrial or technical applications of microemulsions and emulsions, e.g. when used in crude oil production, in soil remediation and when used as e.g. Reaction medium can be used.
- microemulsions produced by adding the AB block copolymers according to the invention have emulsified liquid volumes whose size corresponds to that of emulsions.
- the effects according to the invention can be achieved by any use of a surfactant together with the AB block copolymer in a system to be emulsified.
- a surfactant, to which an AB block copolymer according to the invention is added, and any system emulsified therewith, comprising additionally water and / or oil, are therefore included in the invention.
- the effects according to the invention are not limited to emulsions and microemulsions, but rather influence sen the behavior of surfactants in general in the manner described.
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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)
- Crystallography & Structural Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Detergent Compositions (AREA)
- Cosmetics (AREA)
- Colloid Chemistry (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
- General Preparation And Processing Of Foods (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19839054A DE19839054A1 (de) | 1998-08-28 | 1998-08-28 | Verfahren zur Effizienzsteigerung von Tensiden bei simultaner Unterdrückung lamellarer Mesophasen sowie Tenside, welchen ein Additiv beigefügt ist |
DE19839054 | 1998-08-28 | ||
PCT/DE1999/002748 WO2000012660A2 (de) | 1998-08-28 | 1999-08-26 | Verfahren zur effizienzsteigerung von tensiden bei simultaner unterdrückung lamellarer mesophasen sowie tenside, welchen ein additiv beigefügt ist |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1109883A2 true EP1109883A2 (de) | 2001-06-27 |
EP1109883B1 EP1109883B1 (de) | 2004-10-27 |
EP1109883B2 EP1109883B2 (de) | 2014-09-03 |
Family
ID=7878952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99953661.8A Expired - Lifetime EP1109883B2 (de) | 1998-08-28 | 1999-08-26 | Verfahren zur effizienzsteigerung von tensiden und verfahren zur unterdrückung lamellarer mesophasen in mikroemulsionen sowie ein tensid, welchem ein additiv beigefügt ist |
Country Status (6)
Country | Link |
---|---|
US (2) | US6677293B1 (de) |
EP (1) | EP1109883B2 (de) |
JP (1) | JP4703852B2 (de) |
AT (1) | ATE280821T1 (de) |
DE (2) | DE19839054A1 (de) |
WO (1) | WO2000012660A2 (de) |
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DE19839054A1 (de) * | 1998-08-28 | 2000-03-02 | Forschungszentrum Juelich Gmbh | Verfahren zur Effizienzsteigerung von Tensiden bei simultaner Unterdrückung lamellarer Mesophasen sowie Tenside, welchen ein Additiv beigefügt ist |
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DE10323178A1 (de) | 2003-05-22 | 2004-12-09 | Basf Ag | Mischung, umfassend ein Tensid und ein Cotensid |
DE10358534A1 (de) * | 2003-12-13 | 2005-07-14 | Henkel Kgaa | Adhäsionshemmung von Mikroorganismen durch nichtionische Tenside |
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DE102004007473A1 (de) | 2004-02-13 | 2005-09-01 | Basf Ag | Mischung, umfassend ein Tensid und ein Cotensid |
DE102004056362A1 (de) * | 2004-11-22 | 2006-06-01 | Henkel Kgaa | Schimmel-beständige Baustoffe |
DE102004058956A1 (de) * | 2004-12-08 | 2006-06-14 | Forschungszentrum Jülich GmbH | Verfahren zur Effizienzsteigerung von Tensiden und Emulgatoren mittels Additiven |
DE102005023762A1 (de) * | 2005-05-19 | 2006-11-23 | Forschungszentrum Jülich GmbH | Verfahren zur Effizienzsteigerung von Tensiden, zur Unterdrückung lamellarer Mesophasen, zur Temperaturstabilisierung des Einphasengebietes sowie ein Verfahren zur Verminderung der Grenzflächenspannung in Mikroemulsionen welche Siliconöle enthalten mittels Additiven, sowie Tensid-Ölgemisch |
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CN101233187A (zh) * | 2005-08-04 | 2008-07-30 | 巴斯福股份公司 | 水分散体及其用途 |
DE102005049765A1 (de) * | 2005-10-18 | 2007-04-19 | Forschungszentrum Jülich GmbH | Verfahren zur Effizienzsteigerung von Tensiden, zur Aufweitung des Temperaturfensters, zur Unterdrückung lamellarer Mesophasen in Mikroemulsionen mittels Additiven, sowie Mikroemulsionen |
EP2152843A2 (de) * | 2007-04-27 | 2010-02-17 | Bernd Schwegmann Gmbh&co. Kg | Mischung, welche ein alkylpolyglucosid, ein cotensid und ein polymeres additiv umfasst |
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EP4011996A1 (de) | 2020-12-11 | 2022-06-15 | Henkel AG & Co. KGaA | Verfahren zum ablösen von verklebten substraten |
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US5908707A (en) * | 1996-12-05 | 1999-06-01 | The Procter & Gamble Company | Cleaning articles comprising a high internal phase inverse emulsion and a carrier with controlled absorbency |
DE19654168A1 (de) * | 1996-12-23 | 1998-06-25 | Basf Ag | Verfahren zur Herstellung wäßriger Polymerisatdispersionen durch radikalische, wäßrige Emulsionspolymerisation |
DE19714714A1 (de) * | 1997-04-09 | 1998-10-15 | Basf Ag | Blockcopolymere und deren Verwendung als polymere Tenside |
US5962003A (en) * | 1998-03-30 | 1999-10-05 | Council Of Scientific & Industrial Research | Process for the preparation of polyurethane microcapsules containing monocrotophos |
DE19839054A1 (de) * | 1998-08-28 | 2000-03-02 | Forschungszentrum Juelich Gmbh | Verfahren zur Effizienzsteigerung von Tensiden bei simultaner Unterdrückung lamellarer Mesophasen sowie Tenside, welchen ein Additiv beigefügt ist |
-
1998
- 1998-08-28 DE DE19839054A patent/DE19839054A1/de not_active Withdrawn
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1999
- 1999-08-26 AT AT99953661T patent/ATE280821T1/de active
- 1999-08-26 US US09/763,413 patent/US6677293B1/en not_active Expired - Fee Related
- 1999-08-26 JP JP2000571065A patent/JP4703852B2/ja not_active Expired - Fee Related
- 1999-08-26 EP EP99953661.8A patent/EP1109883B2/de not_active Expired - Lifetime
- 1999-08-26 WO PCT/DE1999/002748 patent/WO2000012660A2/de active IP Right Grant
- 1999-08-26 DE DE59910950T patent/DE59910950D1/de not_active Expired - Lifetime
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2003
- 2003-08-19 US US10/643,491 patent/US7468349B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
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See references of WO0012660A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE19839054A1 (de) | 2000-03-02 |
JP2002525392A (ja) | 2002-08-13 |
JP4703852B2 (ja) | 2011-06-15 |
ATE280821T1 (de) | 2004-11-15 |
WO2000012660A2 (de) | 2000-03-09 |
EP1109883B1 (de) | 2004-10-27 |
DE59910950D1 (de) | 2004-12-02 |
US7468349B2 (en) | 2008-12-23 |
EP1109883B2 (de) | 2014-09-03 |
US6677293B1 (en) | 2004-01-13 |
WO2000012660A3 (de) | 2000-06-22 |
US20040054064A1 (en) | 2004-03-18 |
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