EP2758159A1 - Method for producing a dispersion and use of protein hydrolysates as dispersants - Google Patents

Method for producing a dispersion and use of protein hydrolysates as dispersants

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Publication number
EP2758159A1
EP2758159A1 EP12759718.5A EP12759718A EP2758159A1 EP 2758159 A1 EP2758159 A1 EP 2758159A1 EP 12759718 A EP12759718 A EP 12759718A EP 2758159 A1 EP2758159 A1 EP 2758159A1
Authority
EP
European Patent Office
Prior art keywords
dispersant
hydrolyzate
dispersion
protein
protein hydrolyzate
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Withdrawn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
EP12759718.5A
Other languages
German (de)
French (fr)
Inventor
Gerd Dahms
Andreas Jung
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.)
Clariant International Ltd
Original Assignee
OTC GmbH
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Filing date
Publication date
Application filed by OTC GmbH filed Critical OTC GmbH
Publication of EP2758159A1 publication Critical patent/EP2758159A1/en
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/16—Amines or polyamines
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00—Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
    • B03D1/00—Flotation
    • B03D1/001—Flotation agents
    • B03D1/004—Organic compounds
    • B03D1/016—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/006—Preparation of organic pigments
    • C09B67/0066—Aqueous dispersions of pigments containing only dispersing agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
    • C09B67/0084—Dispersions of dyes
    • C09B67/0085—Non common dispersing agents
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
    • C09C3/10—Treatment with macromolecular organic compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D17/00—Pigment pastes, e.g. for mixing in paints
    • C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
    • C09D17/007—Metal oxide
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D17/00—Pigment pastes, e.g. for mixing in paints
    • C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
    • C09D17/007—Metal oxide
    • C09D17/008—Titanium dioxide
    • 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
    • C11D1/32—Protein hydrolysates; Fatty acid condensates thereof

Definitions

  • the present invention relates to a process for preparing a dispersion and to the use of a protein hydrolyzate as dispersant or dispersant.
  • the invention relates to a process for preparing a suspension and to the use of a protein hydrolyzate as a dispersant in a suspension.
  • Dispersions play an important role in a wide variety of technical fields.
  • the dispersion generally refers to heterogeneous mixtures of otherwise non-dissolvable substances. These can be both mixtures of substances of the same physical state, as well as mixtures of substances of different physical states.
  • the material to be distributed in a medium is referred to as a dispersed or disperse phase during which the medium in which the disperse phase is to be distributed is referred to as a dispersant or dispersant.
  • a mixture solid / solid
  • a suspension solid / liquid
  • an emulsion liquid / liquid
  • Other forms of dispersion are foams (gas / liquid) and aerosols (liquid / gas).
  • Dispersion can also be distinguished with regard to the particle size of the disperse phase.
  • a particle size of the disperse phase ⁇ lnm one speaks of a mole OD 41694 / UAM kular disperse dissolved phase, with a particle size between lnm and ⁇ generally of a colloidally dissolved phase and with a particle size of> ⁇ of a coarsely disperse dissolved phase.
  • a technically important form of the dispersions are the suspensions, ie the mixtures of solids in liquids.
  • the liquids may be both aqueous systems and hydrophobic substances such as oils. Examples of technically used suspensions are wall or top coats.
  • suspensions are used, for example, in flotation, as used in the field of ore or coal processing or papermaking. Also in the field of detergent technology suspensions play a crucial role, since here dirt particles of the tissue to be cleaned must be transferred to the wash liquor.
  • surfactants are used as dispersants for the preparation of dispersions.
  • Tensides have the property of lowering the interfacial tension between two different phases in a system. This property is evoked by the fact that surfactants have hydrophilic and hydrophobic regions in their molecular structure. While, for example, in an aqueous dispersion, the hydrophilic regions of the surfactant align with the aqueous phase, the hydrophobic regions align with the disperse phase, for example a solid.
  • the interfacial tension prevailing between the immiscible phases is reduced to such an extent that a corresponding distribution of the disperse phase in the dispersion medium is made possible.
  • surfactants have in their molecular structure on a polar, hydrophilic part and a nonpolar hydrophobic part. Depending on the charge of the polar portion of the molecular structure, a distinction is made between nonionic, anionic, cationic and amphoteric surfactants.
  • Another class of compounds that is used as a surface-active dispersant are the poloxamers. Poloxamers are block copolymers of ethylene oxide and propylene oxide which have hydrophilic and hydrophobic regions. The ethylene oxide units form the hydrophilic part, while the propylene oxide units form the hydrophobic part, resulting in the amphiphilic properties.
  • the poloxamers are low-foaming and foam-damping nonionic surfactants which are used for dispersion and emulsification in the chemical-technical industry.
  • a disadvantage of the poloxamers in particular is that they often have only a very limited biodegradability.
  • protein hydrolysates are suitable as dispersants for the preparation of dispersions.
  • Proteins serve as a material carrier of life and can be found among others as contractile proteins in muscles, collagen fibers in tendons and connective tissue, keratins in skin and hair or feathers. As a raw material base, they are available in very large quantities and can be converted by hydrolysis into protein hydrolysates.
  • Proteins themselves are made up of amino acids, which are linked to form chains via peptide bonds.
  • the chains thus formed orient themselves over hydrogen bonds. bonds in their secondary structure in helices, ⁇ -sheets, ⁇ -loops, or random-coil structures, which in turn are oriented in their tertiary structure via disulfide bridges.
  • the hitherto known proteinogenic amino acids from which proteins are formed have the following general basic structure:
  • All protein amino acids are oc-amino acids, i. they carry an amino group in ⁇ -position to the carboxyl group.
  • the individual amino acids differ in their residues R.
  • the amino acids can be divided into 4 groups: - Amino acids with nonpolar side groups. These include glycine, alanine, valine, leucine, isoleucine, methionine, phenylalanine, tryptophan and proline.
  • a corresponding protein hydrolyzate has a surfactant character with hydrophilic and hydrophobic areas, similar to the surfactant-like poloxamers having. Similar to surfactant systems, protein hydrolyzates are able to reduce the surface tension of a liquid or the interfacial tension between two phases and to facilitate or assist the formation of dispersions.
  • the individual hydrolyzate molecules are arranged at a critical concentration and form aggregates of micelles within the water.
  • the critical micelle formation concentration can be uniquely determined.
  • Protein hydrolyzates with a surface-active structure similar to those of the block copolymers are in contrast to these rapidly biodegradable and can be produced with little energy from renewable natural resources.
  • the use of the method according to the invention thus results in both economic and clear ecological advantages.
  • water, an aqueous solution or a hydrophobic solvent is provided as the dispersion medium.
  • Aqueous solution in the sense of this invention means a system with a predominant proportion of water. This may include aqueous emulsions.
  • Hydrophobic solvents in the context of the invention are, for example, lipids in general, higher alcohols and nonpolar organic solvents. In particular, for the purposes of the invention, hydrophobic solvents also include oils and fats, such as, for example, mono-, di- or triglycerides.
  • the disperse phase is a solid or a liquid which is immiscible in the dispersant provided. ge phase provided.
  • the inventive method is suitable to prepare both suspensions, and emulsions.
  • the particle size of the disperse phase can be according to the invention between 1 nm and 1 mm.
  • a hydrolyzate of a protein having a successive sequence of amino acids with polar and nonpolar side groups is provided as protein hydrolyzate.
  • a keratin hydrolyzate is provided as a dispersant.
  • keratin hydrolysates show sequences of amino acids having a structure similar to the poloxamers.
  • the dispersant can in the process according to the invention in a concentration between> 1 wt .-% and ⁇ 50 wt .-, preferably between> 3 wt .- and ⁇ 35 wt .-, more preferably between> 5 wt .- and ⁇ 25 wt .- be used.
  • the invention relates to the use of protein hydrolysates as a dispersant, wetting agent, flotation agent and / or as a washing-active ingredient in a detergent.
  • protein hydrolysates can also be used as wetting agents, flotation agents and / or as detergent components in detergents on account of their surfactant properties.
  • the use of the described protein hydrolysates as detergent components in detergents gives rise to immense ecological but also economic advantages.
  • the protein underlying the protein hydrolyzate preferably has a successive sequence of amino acids with polar and nonpolar side groups.
  • protein hydrolysates Due to the high bioavailability of proteins such as keratin, corresponding protein hydrolysates can be made available in large quantities at very reasonable prices. In addition, protein hydrolysates are completely biodegradable and thus do not pose an environmental burden.
  • the protein hydrolyzate as a dispersant in a pigment-containing dispersion, preferably in a dispersion paint or a
  • Dispersion varnish or an oil-based pigment-containing dispersion such as a sunscreen cream to use.
  • the protein hydrolyzate may be used as a wetting agent in a composition for cleaning, e.g. used by vehicle rims.
  • a wetting agent with excellent dispersing properties in order to achieve a sufficient cleaning effect.
  • many substances that are of environmental concern and often irritating to the skin such as phosphoric acid, have been used to loosen the dirt adhering to the rims.
  • the phosphoric acid may also cause damage, for example, to alloy wheels due to chemical reactions between the acid and the rim material. It has been shown that protein hydrolysates, in particular
  • Keratinhydrolysate are able to ensure a sufficient cleaning effect even in basic, far less aggressive compositions.
  • a protein hydrolyzate such as a keratin hydrolyzate can be used advantageously.
  • large amounts of surfactants are used to produce the desired ores / coals clean up and separate from the dead stone. This is done especially at the place of ore extraction, which is often in developing countries.
  • Protein hydrolysates and, in particular, keratin hydrolysates offer the advantage here that they are completely biodegradable and thus the danger of drinking water contamination can be reduced.
  • slaughterhouse waste such as feathers, such as are produced in very large quantities in poultry processing
  • corresponding protein hydrolysates can serve as starting material for the provision of corresponding protein hydrolysates.
  • These can be converted by suitable hydrolysis processes into the corresponding hydrolyzate, which can then be provided as a solution or in freeze-dried form.
  • titanium dioxide powder (UV titanium M262, Sachtleben GmbH) is added to an aqueous solution of a keratin hydrolyzate having a hydrolyzate content of 25% by weight.
  • the ratio of aqueous keratin hydrolyzate solution to titanium dioxide powder is 60% by weight to 40% by weight.
  • the resulting mixture is homogenized with a dissolver disc or a wire stirrer as a stirring tool at a rotational speed between 2 and 10 m / s.
  • a stable titanium dioxide dispersion is obtained.
  • a freeze-dried pulverulent keratin hydrolyzate in a ratio by weight of 1/10 is added to a caprylic acid / capric acid triglyceride mixture (Rofetan GTCC, Univar GmbH).
  • the phase thus obtained is added to a titanium dioxide powder (UV titanium M262, Sachtleben GmbH).
  • the resulting mixture is homogenized with a dissolver disc or a wire stirrer as a stirring tool at a rotational speed between 2 and 10 m / s and it is added with continued homogenization 5 parts by weight of water.
  • a stable oil-based titanium dioxide dispersion is obtained.
  • UV-Titan M161 Sachtleben GmbH Titanium Dioxide, Alumina, Stearic 40,00
  • Zinc oxide powder (Z-Cote, BASF AG) is added at room temperature to an aqueous solution of a keratin hydrolyzate having a hydrolyzate content of 25% by weight.
  • the ratio of aqueous keratin hydrolyzate solution to zinc oxide powder is 60% by weight to 44% by weight.
  • the resulting mixture is homogenized with a dissolver disc or a wire stirrer as a stirring tool at a rotational speed between 4 and 8 m / s.
  • a stable zinc oxide dispersion is obtained.
  • Zinc oxide powder (Z-Cote MAX, BASF AG) is added at room temperature to an aqueous solution of a keratin hydrolyzate having a hydrolyzate content of 25% by weight.
  • the ratio of aqueous keratin hydrolyzate solution to zinc oxide powder is 60% by weight to 40% by weight.
  • the resulting mixture is homogenized with a dissolver disc or a wire stirrer as a stirring tool at a rotational speed between 4 and 8 m / s.
  • a stable zinc oxide dispersion is obtained.
  • 30% by weight of an aqueous keratin hydrolyzate having a hydrolyzate content of 25% by weight are mixed with 10% by weight of 1,3-butanediol, 10% by weight of a carylyl / capric glucoside, 1% by weight of sodium hydrogensulfide, 1% by weight of potassium hydroxide and 48 wt.
  • the resulting mixture showed excellent cleaning action against common oil and Teerverschmutzache.

Abstract

The invention relates to a method for producing a dispersion and to the use of a protein hydrolysate as a dispersant or dispersing agent. In particular, the invention relates to a method for producing a suspension and to the use of a protein hydrolysate as a dispersant in a suspension. According to the invention, in particular hydrolysates of proteins having a consecutive sequence of amino acids having polar and non-polar side groups are used as dispersants.

Description

Verfahren zur Herstellung einer Dispersion und Verwendung von Proteinhydrolysaten als  Process for the preparation of a dispersion and use of protein hydrolysates as
Dispergatoren  dispersants
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung einer Dispersion sowie die Verwendung eines Proteinhydrolysates als Dispergator bzw. Dispergiermittel. Insbesondere betrifft die Erfindung ein Verfahren zur Herstellung einer Suspension sowie die Verwendung eines Proteinhydrolysates als Dispergator in einer Suspension. The present invention relates to a process for preparing a dispersion and to the use of a protein hydrolyzate as dispersant or dispersant. In particular, the invention relates to a process for preparing a suspension and to the use of a protein hydrolyzate as a dispersant in a suspension.
Dispersionen spielen in den unterschiedlichsten Bereichen der Technik eine wichtige Rolle. Als Dispersion im Allgemeinen werden heterogene Gemische von ansonsten nicht ineinander lösbaren Stoffen bezeichnet. Dabei kann es sich sowohl um Mischungen von Stoffen gleichen Aggregatzustandes, wie auch um Mischungen von Stoffen unterschiedlicher Aggregatzustän- de handeln. Der in einem Medium zu verteilende Stoff wird als dispergierte oder disperse Phase bezeichnet, während der das Medium, in welchem die disperse Phase verteilt werden soll als Dispersionsmittel oder Dispergens bezeichnet wird. Je nach Aggregatzustand von disperser Phase und Dispergens wird dabei von einem Gemenge (Feststoff/Feststoff), einer Suspension (Feststoff/ Flüssigkeit) oder einer Emulsion (Flüssigkeit/Flüssigkeit) gesprochen. Weitere Formen der Dispersion sind Schäume (Gas/Flüssigkeit) und Aerosole (Flüssigkeit/Gas). Dispersions play an important role in a wide variety of technical fields. The dispersion generally refers to heterogeneous mixtures of otherwise non-dissolvable substances. These can be both mixtures of substances of the same physical state, as well as mixtures of substances of different physical states. The material to be distributed in a medium is referred to as a dispersed or disperse phase during which the medium in which the disperse phase is to be distributed is referred to as a dispersant or dispersant. Depending on the state of matter of disperse phase and dispersant, a mixture (solid / solid), a suspension (solid / liquid) or an emulsion (liquid / liquid) is used. Other forms of dispersion are foams (gas / liquid) and aerosols (liquid / gas).
Dispersion lassen sich darüber hinaus hinsichtlich der Teilchengröße der dispersen Phase unterscheiden. Bei einer Teilchengröße der dispersen Phase < lnm spricht man von einer mole- OD 41694 / UAM kular dispers gelösten Phase, bei einer Teilchengröße zwischen lnm und Ιμηι im Allgemeinen von einer kolloid gelösten Phase und bei einer Teilchengröße von > Ιμιη von einer grob dispers gelösten Phase. Eine technisch wichtige Form der Dispersionen bilden die Suspensionen, also die Mischungen von Feststoffen in Flüssigkeiten. Dabei kann es sich bei den Flüssigkeiten sowohl um wässri- ge Systeme, als auch um hydrophobe Stoffe wie beispielsweise Öle handeln. Beispiele für technisch eingesetzte Suspensionen sind Wand- oder Deckfarben. Darüber hinaus werden Suspensionen beispielsweise bei der Flotation, wie sie im Bereich der Erz- oder Kohleaufbe- reitung oder der Papierherstellung Anwendung findet, eingesetzt. Auch im Bereich der Waschmitteltechnik spielen Suspensionen eine entscheidende Rolle, da hier Schmutzpartikel des zu reinigenden Gewebes in die Waschflotte überführt werden müssen. Dispersion can also be distinguished with regard to the particle size of the disperse phase. With a particle size of the disperse phase <lnm one speaks of a mole OD 41694 / UAM kular disperse dissolved phase, with a particle size between lnm and Ιμηι generally of a colloidally dissolved phase and with a particle size of> Ιμιη of a coarsely disperse dissolved phase. A technically important form of the dispersions are the suspensions, ie the mixtures of solids in liquids. The liquids may be both aqueous systems and hydrophobic substances such as oils. Examples of technically used suspensions are wall or top coats. In addition, suspensions are used, for example, in flotation, as used in the field of ore or coal processing or papermaking. Also in the field of detergent technology suspensions play a crucial role, since here dirt particles of the tissue to be cleaned must be transferred to the wash liquor.
Bisher werden als Dispergatoren zur Herstellung von Dispersionen Tenside eingesetzt. Tensi- de besitzen die Eigenschaft, die Grenzflächenspannung zwischen zwei unterschiedlichen Phasen in einem System herabzusetzen. Hervorgerufen wird diese Eigenschaft dadurch, dass Tenside hydrophile und hydrophobe Bereiche in ihrer Molekularstruktur aufweisen. Während sich zum Beispiel in einer wässrigen Dispersion die hydrophilen Bereiche des Tensids zur wässrigen Phase hin ausrichten, richten sich die hydrophoben Bereiche zur dispersen Phase, beispielsweise einem Feststoff, hin aus. Durch diese Art der Ausrichtung wird die zwischen den nicht mischbaren Phasen herrschende Grenzflächenspannung soweit herabgesetzt, dass ein entsprechende Verteile der dispersen Phase im Dispersionsmittel ermöglicht wird. So far, surfactants are used as dispersants for the preparation of dispersions. Tensides have the property of lowering the interfacial tension between two different phases in a system. This property is evoked by the fact that surfactants have hydrophilic and hydrophobic regions in their molecular structure. While, for example, in an aqueous dispersion, the hydrophilic regions of the surfactant align with the aqueous phase, the hydrophobic regions align with the disperse phase, for example a solid. As a result of this type of alignment, the interfacial tension prevailing between the immiscible phases is reduced to such an extent that a corresponding distribution of the disperse phase in the dispersion medium is made possible.
Alle Tenside weisen in ihrer Molekularstruktur einen polaren, hydrophilen Teil sowie einen unpolaren hydrophoben Teil auf. Je nach Ladung des polaren Abschnittes der Molekularstruktur unterscheidet man nichtionische, anionische, kationischen und amphotere Tensid. Eine weitere Verbindungsklasse, welche als oberflächenaktives Dispergens genutzt wird sind die Poloxamere. Poloxamere sind Blockcopolymere aus Ethylenoxid und Propylenoxid, welche über hydrophile und hydrophobe Bereiche verfügen. Die Ethylenoxid Einheiten bilden dabei den hydrophilen Teil, während die Propylenoxid-Einheiten den hydrophoben Teil aus- bilden, so dass sich die amphiphilen Eigenschaften ergeben. Bei den Poloxameren handelt sich um schaumarme und schaumdämpfende nichtionische Tenside, die zur Dispergierung und Emulgierung in der chemisch-technischen Industrie Anwendung finden. All surfactants have in their molecular structure on a polar, hydrophilic part and a nonpolar hydrophobic part. Depending on the charge of the polar portion of the molecular structure, a distinction is made between nonionic, anionic, cationic and amphoteric surfactants. Another class of compounds that is used as a surface-active dispersant are the poloxamers. Poloxamers are block copolymers of ethylene oxide and propylene oxide which have hydrophilic and hydrophobic regions. The ethylene oxide units form the hydrophilic part, while the propylene oxide units form the hydrophobic part, resulting in the amphiphilic properties. The poloxamers are low-foaming and foam-damping nonionic surfactants which are used for dispersion and emulsification in the chemical-technical industry.
Ein Nachteil insbesondere der Poloxamere ist, dass diese vielfach nur eine sehr begrenzte biologische Abbaubarkeit besitzen. A disadvantage of the poloxamers in particular is that they often have only a very limited biodegradability.
Es ist daher eine Aufgabe der vorliegenden Erfindung, ein alternatives Verfahren zur Herstellung einer Dispersion anzugeben. Gelöst wird diese Aufgabe durch ein Verfahren gemäß Anspruch 1. Ausgestaltungen des erfindungsgemäßen Verfahren finden sich in den Unteransprüchen sowie der nachfolgenden Beschreibung. It is therefore an object of the present invention to provide an alternative process for preparing a dispersion. This object is achieved by a method according to claim 1. Embodiments of the method according to the invention can be found in the subclaims and the following description.
Überraschender Weise hat sich gezeigt, dass sich Proteinhydrolysate als Dispergatoren zur Herstellung von Dispersionen eignen. Surprisingly, it has been found that protein hydrolysates are suitable as dispersants for the preparation of dispersions.
Proteine dienen als stoffliche Träger des Lebens und sind unter anderem als kontraktile Eiweiße in Muskeln, Kollagenfasern in Sehnen und Bindegewebe, Keratine in Haut und Haaren oder Federn zu finden. Als Rohstoffbasis sind sie in sehr großer Menge verfügbar und lassen sich mittels Hydrolyse in Proteinhydrolysate überführen. Proteins serve as a material carrier of life and can be found among others as contractile proteins in muscles, collagen fibers in tendons and connective tissue, keratins in skin and hair or feathers. As a raw material base, they are available in very large quantities and can be converted by hydrolysis into protein hydrolysates.
Proteine selbst sind aus -Aminosäuren aufgebaut, die über Peptidbindungen zu Ketten miteinander verbunden sind. Die so gebildeten Ketten orientieren über sich Wasserstoffbrücken- bindungen in ihrer Sekundärstruktur in -Helices, ß-Faltblatt, ß-Schleifen, oder Random-Coil Strukturen, welche sich wiederum in ihrer Tertiärstruktur über Disulfidbrücken orientieren. Die bisher bekannten proteinogenen Aminosäuren, aus welchen Proteine gebildet werden, weisen die folgende allgemeine Grundstruktur auf: Proteins themselves are made up of amino acids, which are linked to form chains via peptide bonds. The chains thus formed orient themselves over hydrogen bonds. bonds in their secondary structure in helices, β-sheets, β-loops, or random-coil structures, which in turn are oriented in their tertiary structure via disulfide bridges. The hitherto known proteinogenic amino acids from which proteins are formed have the following general basic structure:
COOH COOH
H2N C H  H2N C H
R Alle in Proteinen vorkommenden Aminosäuren sind oc- Aminosäuren, d.h. sie tragen eine Aminogruppe in α-Stellung zur Carboxylgruppe. Die einzelnen Aminosäuren unterscheiden sich in ihren Reste R. Nach diesen unterschiedlichen Seitengruppen kann man die Aminosäuren in 4 Gruppen einteilen: - Aminosäuren mit unpolaren Seitengruppen. Dazu gehören Glyzin, Alanin, Valin, Leucin, Isoleucin, Methionin, Phenylalanin, Tryptophan und Prolin.  R All protein amino acids are oc-amino acids, i. they carry an amino group in α-position to the carboxyl group. The individual amino acids differ in their residues R. According to these different side groups, the amino acids can be divided into 4 groups: - Amino acids with nonpolar side groups. These include glycine, alanine, valine, leucine, isoleucine, methionine, phenylalanine, tryptophan and proline.
- Aminosäuren mit polaren, aber ungeladenen Seitengruppen. Dazu gehören Serin, Threonin, Cystein, Tyrosin, Asparagin und Glutamin. - Amino acids with polar but uncharged side groups. These include serine, threonine, cysteine, tyrosine, asparagine and glutamine.
- Aminosäuren mit polaren basischen Seitengruppen. Dazu gehören Lysin, Arginin und Histi- din. - Amino acids with polar basic side groups. These include lysine, arginine and histidine.
- Aminosäuren mit polaren sauren Seiten gruppen. Dazu gehören Asparaginsäure und Gluta- minsäure. - Amino acids with polar acidic groups. These include aspartic acid and glutamic acid.
Überraschender Weise hat sich gezeigt, dass, wenn es bei der Anordnung der verschiedenen Aminosäuren zu aufeinanderfolgenden Sequenzen von Aminosäuren mit unpolaren und pola- ren Seitengruppen kommt, ein entsprechendes Protein-Hydrolysat einen Tensidcharakter mit hydrophilen und hydrophoben Bereichen, ähnlich den tensidartigen Poloxamere, aufweist. Ähnlich wie bei tensidischen Systemen sind Proteinhydrolysate in der Lage, die Oberflächenspannung einer Flüssigkeit oder die Grenzflächenspannung zwischen zwei Phasen herabzu- setzen und die Bildung von Dispersionen zu ermöglichen oder zu unterstützen. Surprisingly, it has been found that when it comes to arranging the different amino acids into sequential sequences of amino acids with nonpolar and polar ren side groups, a corresponding protein hydrolyzate has a surfactant character with hydrophilic and hydrophobic areas, similar to the surfactant-like poloxamers having. Similar to surfactant systems, protein hydrolyzates are able to reduce the surface tension of a liquid or the interfacial tension between two phases and to facilitate or assist the formation of dispersions.
Gibt man beispielsweise ein Proteinhydrolysat, das Aminosäuren mit aufeinanderfolgenden Sequenzen von Aminosäuren mit unpolaren und polaren Seitengruppen aufweist, in Wasser, so ordnen sich ab einer kritischen Konzentration die einzelnen Hydrolysatmoleküle und bil- den innerhalb des Wassers Aggregate aus Mizellen. Über Grenzflächenspannungsmessungen kann die kritische Mizellbildungskonzentration eindeutig bestimmt werden. If, for example, a protein hydrolyzate containing amino acids with consecutive sequences of amino acids with nonpolar and polar side groups is added to water, the individual hydrolyzate molecules are arranged at a critical concentration and form aggregates of micelles within the water. By interfacial tension measurements, the critical micelle formation concentration can be uniquely determined.
Proteinhydrolysate mit einem tensidischen Aufbau ähnlich dem der Blockcopolymere sind im Gegensatz zu diesen schnell biologisch abbaubar und unter geringem Energieaufwand aus nachwachsenden natürlichen Ressourcen herstellbar. Durch den Einsatz des erfindungs gemäßen Verfahrens ergeben sich so sowohl ökonomische als auch deutliche ökologische Vorteile. Protein hydrolyzates with a surface-active structure similar to those of the block copolymers are in contrast to these rapidly biodegradable and can be produced with little energy from renewable natural resources. The use of the method according to the invention thus results in both economic and clear ecological advantages.
In einer Ausgestaltung des erfindungs gemäßen Verfahrens wird als Dispersionsmittel Wasser, eine wässrige Lösung oder ein hydrophobes Lösungsmittel bereitgestellt. Wässrige Lösung im Sinne dieser Erfindung bedeutet dabei ein System mit einem überwiegenden Wasseranteil. Hierunter können auch wässrige Emulsionen fallen. Hydrophobe Lösungsmittel im Sinne der Erfindung sind beispielsweise Lipide im Allgemeinen, höherwertige Alkohole, und unpolare organische Lösungsmittel. Insbesondere werden im Sinne der Erfindung unter hydrophoben Lösungsmitteln auch Öle und Fette, wie beispielsweise Mono-, Di-, oder Triglyceride ver- standen. In one embodiment of the method according to the invention, water, an aqueous solution or a hydrophobic solvent is provided as the dispersion medium. Aqueous solution in the sense of this invention means a system with a predominant proportion of water. This may include aqueous emulsions. Hydrophobic solvents in the context of the invention are, for example, lipids in general, higher alcohols and nonpolar organic solvents. In particular, for the purposes of the invention, hydrophobic solvents also include oils and fats, such as, for example, mono-, di- or triglycerides.
Gemäß einer weiteren Ausgestaltung des erfindungs gemäßen Verfahrens wird als disperse Phase ein Feststoff oder eine in dem bereitgestellten Dispersionsmittel nicht mischbare flüssi- ge Phase bereitgestellt. Insoweit ist das erfindungsgemäße Verfahren geeignet sowohl Suspensionen, als auch Emulsionen herzustellen. Im Falle der Suspension kann die Teilchengröße der dispersen Phase erfindungs gemäß zwischen 1 nm und 1 mm liegen. Gemäß einer weiteren Ausgestaltung des erfindungsgemäßen Verfahrens wird als Proteinhydrolysat ein Hydrolysat eines Proteins mit einer aufeinanderfolgenden Sequenz von Aminosäuren mit polaren und unpolaren Seitengruppen bereitgestellt. Überraschender Weise hat sich gezeigt, dass insbesondere Hydrolysate von Proteinen mit einer entsprechenden aufeinanderfolgenden Sequenz von Aminosäuren mit polaren und unpolaren Seitengruppen ge- eignet sind, eine Tensidwirkung zu entfalten. According to a further embodiment of the process according to the invention, the disperse phase is a solid or a liquid which is immiscible in the dispersant provided. ge phase provided. In that regard, the inventive method is suitable to prepare both suspensions, and emulsions. In the case of the suspension, the particle size of the disperse phase can be according to the invention between 1 nm and 1 mm. According to a further embodiment of the method according to the invention, a hydrolyzate of a protein having a successive sequence of amino acids with polar and nonpolar side groups is provided as protein hydrolyzate. Surprisingly, it has been found that in particular hydrolyzates of proteins with a corresponding successive sequence of amino acids with polar and non-polar side groups are suitable for exhibiting a surfactant effect.
In einer weiteren Ausgestaltung des erfindungs gemäßen Verfahrens wird als Dispergator ein Keratinhydrolysat bereitgestellt. Insbesondere Keratinhydrolysate zeigen Sequenzen von Aminosäuren, die eine zu den Poloxameren ähnliche Struktur aufweisen. In a further embodiment of the method according to the invention, a keratin hydrolyzate is provided as a dispersant. In particular, keratin hydrolysates show sequences of amino acids having a structure similar to the poloxamers.
Der Dispergator kann in dem erfindungsgemäßen Verfahren in einer Konzentration zwischen >1 Gew.-% und <50 Gew.- , bevorzugt zwischen >3 Gew.- und <35 Gew.- , noch bevorzugter zwischen >5 Gew.- und <25 Gew.- eingesetzt werden. Neben dem zuvor beschriebenen Verfahren betrifft die Erfindung die Verwendung von Proteinhydrolysaten als Dispergator, Netzmittel, Flotationsmittel und/oder als waschaktiver Bestandteil in einem Waschmittel. The dispersant can in the process according to the invention in a concentration between> 1 wt .-% and <50 wt .-, preferably between> 3 wt .- and <35 wt .-, more preferably between> 5 wt .- and <25 wt .- be used. In addition to the method described above, the invention relates to the use of protein hydrolysates as a dispersant, wetting agent, flotation agent and / or as a washing-active ingredient in a detergent.
Überraschender Weise hat sich gezeigt, dass Proteinhydrolysate neben ihrer Eignung als Dispergatoren aufgrund ihrer tensidischen Eigenschaften auch als Netzmittel, Flotationsmittel und/oder als waschaktive Bestandteile in Waschmitteln eingesetzt werden können. Insbesondere durch die Verwendung der beschriebenen Proteinhydrolysate als waschaktive Bestandteile in Waschmitteln ergeben sich immense ökologische aber auch ökonomische Vorteile. Bevorzugt weist dabei das dem Proteinhydrolysat zugrundeliegende Protein eine aufeinanderfolgende Sequenz von Aminosäuren mit polaren und unpolaren Seitengruppen auf. Surprisingly, it has been shown that, in addition to their suitability as dispersants, protein hydrolysates can also be used as wetting agents, flotation agents and / or as detergent components in detergents on account of their surfactant properties. In particular, the use of the described protein hydrolysates as detergent components in detergents gives rise to immense ecological but also economic advantages. In this case, the protein underlying the protein hydrolyzate preferably has a successive sequence of amino acids with polar and nonpolar side groups.
Aufgrund der hohen Bioverfügbarkeit von Proteinen wie beispielsweise Keratin können ent- sprechende Proteinhydrolysate in großen Mengen zu sehr günstigen Preisen verfügbar gemacht werden. Darüber hinaus sind Proteinhydrolysate vollständig biologisch abbaubar und stellen somit keine Umweltbelastung dar. Due to the high bioavailability of proteins such as keratin, corresponding protein hydrolysates can be made available in large quantities at very reasonable prices. In addition, protein hydrolysates are completely biodegradable and thus do not pose an environmental burden.
So ist es beispielsweise in vorteilhafter Weise möglich, das Proteinhydrolysat als Dispergator in einer Pigment-haltigen Dispersion, vorzugsweise in einer Dispersionsfarbe oder einemFor example, it is possible in an advantageous manner, the protein hydrolyzate as a dispersant in a pigment-containing dispersion, preferably in a dispersion paint or a
Dispersionslack oder einer ölbasierten Pigment-haltigen Dispersion, wie beispielsweise einer Sonnenschutzcreme zu verwende. Dispersion varnish or an oil-based pigment-containing dispersion, such as a sunscreen cream to use.
Auch kann das Proteinhydrolysat als Netzmittel in einer Zusammensetzung zur Reinigung, z.B. von Fahrzeugfelgen verwendet werden. Insbesondere die an Fahrzeugfelgen auftretende Verschmutzung aus Bremsabrieb, Öl, Teer und Gummiresten bedarf eines Netzmittels mit hervorragenden Dispergiereigenschaften, um eine hinreichenden Reinigungseffekt zu erzielen. Bisher wurden dabei vielfach umwelttechnisch bedenkliche und vielfach auch hautreizende Stoffe, wie beispielsweise Phosphorsäure eingesetzt, um den an den Felgen anhaften- den Schmutz zu lösen. Dabei kann es durch die Phosphorsäure auch zu Beschädigungen beispielsweise an Leichtmetallfelgen durch chemische Reaktionen zwischen der Säure und dem Felgenmaterial kommen. Es hat sich gezeigt, dass Proteinhydrolysate, insbesondere Also, the protein hydrolyzate may be used as a wetting agent in a composition for cleaning, e.g. used by vehicle rims. In particular, occurring at vehicle rims pollution from brake wear, oil, tar and rubber residues requires a wetting agent with excellent dispersing properties in order to achieve a sufficient cleaning effect. Up to now, many substances that are of environmental concern and often irritating to the skin, such as phosphoric acid, have been used to loosen the dirt adhering to the rims. The phosphoric acid may also cause damage, for example, to alloy wheels due to chemical reactions between the acid and the rim material. It has been shown that protein hydrolysates, in particular
Keratinhydrolysate, in der Lage sind, eine hinreichende Reinigungswirkung auch in basischen, weit weniger aggressiven Zusammensetzungen zu gewährleisten. Keratinhydrolysate, are able to ensure a sufficient cleaning effect even in basic, far less aggressive compositions.
Auch als Flotationshilfsmittel bei der Aufbereitung von Kohlen und/oder Erzen kann ein Proteinhydrolysat, wie beispielsweise ein Keratinhydrolysat vorteilhaft verwendet werden. In diesem Bereich werden große Mengen Tenside eingesetzt, um die gewünschten Erze/Kohlen aufzureinigen und vom tauben Gestein zu trennen. Dies erfolgt insbesondere am Ort der Erzgewinnung, der vielfach in Entwicklungsländern liegt. Hier sind oftmals nur sehr unzulängliche Mittel zur Trinkwasseraufbereitung gegeben, so dass es nicht ausgeschlossen werden kann, dass in den Wasserkreislauf gelangende Tenside ihren Weg in das Trinkwasser finden. Proteinhydrolysate und insbesondere Keratinhydrolysate bieten hier den Vorteil, dass sie vollständig biologisch abbaubar sind und somit die Gefahr eine Trinkwasserkontamination reduziert werden kann. Also, as a flotation aid in the treatment of coals and / or ores, a protein hydrolyzate, such as a keratin hydrolyzate can be used advantageously. In this area, large amounts of surfactants are used to produce the desired ores / coals clean up and separate from the dead stone. This is done especially at the place of ore extraction, which is often in developing countries. Here are often only very inadequate means of drinking water treatment is given, so that it can not be ruled out that reaching into the water cycle surfactants find their way into the drinking water. Protein hydrolysates and, in particular, keratin hydrolysates offer the advantage here that they are completely biodegradable and thus the danger of drinking water contamination can be reduced.
Als Ausgangsrohstoff für die Bereitstellung entsprechender Proteinhydrolysate können bei- spielsweise Schlachtabfälle wie Federn dienen, wie sie in sehr großen Mengen in der Geflügelverarbeitung anfallen. Diese können durch geeignete Hydrolyseprozesse in das entsprechende Hydrolysat überführt werden, welches dann als Lösung oder in gefriergetrockneter Form bereitgestellt werden kann. Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert. By way of example, slaughterhouse waste such as feathers, such as are produced in very large quantities in poultry processing, can serve as starting material for the provision of corresponding protein hydrolysates. These can be converted by suitable hydrolysis processes into the corresponding hydrolyzate, which can then be provided as a solution or in freeze-dried form. The invention will be explained in more detail with reference to embodiments.
Beispiel 1: Example 1:
Wässrige Titandioxid Dispersion  Aqueous titanium dioxide dispersion
Bei Raumtemperatur wird zu einer wässrigen Lösung eines Keratinhydrolysates mit einem Hydroly satanteil von 25 Gew.- wird Titandioxid-Pulver (UV-Titan M262, Sachtleben GmbH) zugesetzt. Das Verhältnis von wässriger Keratinhydrolysat-Lösung zu Titandioxidpulver beträgt 60 Gew.- zu 40 Gew.- . Die erhaltene Mischung wird mit einer Dissolverscheibe oder einem Drahtrührer als Rührwerkzeug bei einer Umlaufgeschwindigkeit zwischen 2 und 10 m/s homogenisiert. Es wird eine stabile Titandioxid Dispersion erhalten.  At room temperature, titanium dioxide powder (UV titanium M262, Sachtleben GmbH) is added to an aqueous solution of a keratin hydrolyzate having a hydrolyzate content of 25% by weight. The ratio of aqueous keratin hydrolyzate solution to titanium dioxide powder is 60% by weight to 40% by weight. The resulting mixture is homogenized with a dissolver disc or a wire stirrer as a stirring tool at a rotational speed between 2 and 10 m / s. A stable titanium dioxide dispersion is obtained.
Handelsname Hersteller CTFA/INCI [Gew.- ]Trade name Manufacturer CTFA / INCI [Wt.-]
Phase A Keratinhydrolysat (25%) OTC GmbH Hydrolyzed Keratin 60,00Phase A Keratin hydrolyzate (25%) OTC GmbH Hydrolyzed Keratin 60.00
Phase B Phase B
UV-Titan M262 Sachtleben GmbH Titanium Dioxide, Alumina, Dimethicone 40,00  UV-Titan M262 Sachtleben GmbH Titanium Dioxide, Alumina, Dimethicone 40,00
Summe: 100,00 Total: 100.00
Beispiel 2: Example 2:
Ölbasierte Titandioxid Dispersion  Oil-based titanium dioxide dispersion
Bei Raumtemperatur wird zu einer Caprylsäure/Caprinsäure Triglycerid Mischung (Rofetan GTCC, Univar GmbH) ein gefriergetrocknetes pulverförmiges Keratinhydrolysates in einem Gew.- Verhältnis von 1/10 gegeben. Der so erhaltenen Phase wird ein Titandioxid-Pulver (UV-Titan M262, Sachtleben GmbH) zugesetzt. Die erhaltene Mischung wird mit einer Dissolverscheibe oder einem Drahtrührer als Rührwerkzeug bei einer Umlaufgeschwindigkeit zwischen 2 und 10 m/s homogenisiert und er werden unter fortgesetzter Homogenisierung 5 Gew.- Wasser zugesetzt. Es wird eine stabile ölbasierte Titandioxid-Dispersion erhalten. At room temperature, a freeze-dried pulverulent keratin hydrolyzate in a ratio by weight of 1/10 is added to a caprylic acid / capric acid triglyceride mixture (Rofetan GTCC, Univar GmbH). The phase thus obtained is added to a titanium dioxide powder (UV titanium M262, Sachtleben GmbH). The resulting mixture is homogenized with a dissolver disc or a wire stirrer as a stirring tool at a rotational speed between 2 and 10 m / s and it is added with continued homogenization 5 parts by weight of water. A stable oil-based titanium dioxide dispersion is obtained.
Handelsname Hersteller CTFA INCI [Gew.-%] Trade name Manufacturer CTFA INCI [% weight]
Phase A Phase A
Keratinhydrolysat Pulver OTC GmbH Hydrolyzed Keratin 5,00 Keratin hydrolyzate powder OTC GmbH Hydrolyzed Keratin 5.00
Rofetan GTCC Univar GmbH Caprylic/Capric Triglyceride 50,00Rofetan GTCC Univar GmbH Caprylic / Capric Triglyceride 50,00
Phase B Phase B
UV-Titan M161 Sachtleben GmbH Titanium Dioxide, Alumina, Stearic 40,00  UV-Titan M161 Sachtleben GmbH Titanium Dioxide, Alumina, Stearic 40,00
Acid  acid
Phase C  Phase C
demin. Wasser Aqua/W ater 5,00 demin. Water Aqua / Wather 5.00
Summe: 100,00 Beispiel 3 Total: 100.00 Example 3
Wässrige Zinkoxid Dispersion  Aqueous zinc oxide dispersion
A: Bei Raumtemperatur wird zu einer wässrigen Lösung eines Keratinhydrolysates mit einem Hydroly satanteil von 25 Gew.- wird Zinkoxid-Pulver (Z-Cote, BASF AG) zugesetzt. Das Verhältnis von wässriger Keratinhydrolysat-Lösung zu Zinkoxidpulver beträgt 60 Gew.- % zu 44 Gew.- . Die erhaltene Mischung wird mit einer Dissolverscheibe oder einem Drahtrührer als Rührwerkzeug bei einer Umlaufgeschwindigkeit zwischen 4 und 8 m/s homogenisiert. Es wird eine stabile Zinkoxid Dispersion erhalten.  A: Zinc oxide powder (Z-Cote, BASF AG) is added at room temperature to an aqueous solution of a keratin hydrolyzate having a hydrolyzate content of 25% by weight. The ratio of aqueous keratin hydrolyzate solution to zinc oxide powder is 60% by weight to 44% by weight. The resulting mixture is homogenized with a dissolver disc or a wire stirrer as a stirring tool at a rotational speed between 4 and 8 m / s. A stable zinc oxide dispersion is obtained.
B: Bei Raumtemperatur wird zu einer wässrigen Lösung eines Keratinhydrolysates mit einem Hydroly satanteil von 25 Gew.-% wird Zinkoxid-Pulver (Z-Cote MAX, BASF AG) zugesetzt. Das Verhältnis von wässriger Keratinhydrolysat-Lösung zu Zinkoxidpulver beträgt 60 Gew.- zu 40 Gew.- . Die erhaltene Mischung wird mit einer Dissolverscheibe oder einem Drahtrührer als Rührwerkzeug bei einer Umlaufgeschwindigkeit zwischen 4 und 8 m/s homogenisiert. Es wird eine stabile Zinkoxid Dispersion erhalten. B: Zinc oxide powder (Z-Cote MAX, BASF AG) is added at room temperature to an aqueous solution of a keratin hydrolyzate having a hydrolyzate content of 25% by weight. The ratio of aqueous keratin hydrolyzate solution to zinc oxide powder is 60% by weight to 40% by weight. The resulting mixture is homogenized with a dissolver disc or a wire stirrer as a stirring tool at a rotational speed between 4 and 8 m / s. A stable zinc oxide dispersion is obtained.
Handelsname Hersteller CTFA/INCI [Gew.-%] [Gew.- Trade name Manufacturer CTFA / INCI [% by weight] [Wt.
%] %]
A B  A B
Phase A  Phase A
Keratinhydrolysat OTC GmbH Hydrolyzed Keratin 56,00 60,00 Keratin hydrolyzate OTC GmbH Hydrolyzed Keratin 56,00 60,00
(25%) (25%)
Phase B  Phase B
Z-Cote BASF Zinc Oxide 44,00 0,00  Z-Cote BASF Zinc Oxide 44.00 0.00
Z-Cote Max BASF Zinc Oxide, Diphenyl Capryl 0,00 40,00  Z-Cote Max BASF Zinc Oxide, Diphenyl Capryl 0.00 40.00
Methicone  methicone
Summe: 100,00 100,00 Beispiel 4: Total: 100.00 100.00 Example 4:
Felgenreiniger wheel cleaner
30 Gew.- eines wässrigen Keratinhydrolysates mit einem Hydrolysatanteil von 25 Gew.- werden mit 10 Gew.- 1,3-Butandiols, 10 Gew.- eines Carylyl/Capryl Glucosides, 1 Gew.- % Natriumhydrogensulfid, 1 Gew.- Kaliumhydroxid und 48 Gew.- Wasser gemischt, um einen Reinigungsmittel insbesondere zur Reinigung von Fahrzeugfelgen bereitzustellen. Die erhaltene Mischung zeigte hervorragende Abreinigungswirkung gegenüber üblich Öl- und Teerverschmutzungen. 30% by weight of an aqueous keratin hydrolyzate having a hydrolyzate content of 25% by weight are mixed with 10% by weight of 1,3-butanediol, 10% by weight of a carylyl / capric glucoside, 1% by weight of sodium hydrogensulfide, 1% by weight of potassium hydroxide and 48 wt. Mixed water to provide a cleaning agent especially for cleaning vehicle wheels. The resulting mixture showed excellent cleaning action against common oil and Teerverschmutzungen.
Handelsname Hersteller CTFA/INCI [Gew.-%] Trade name Manufacturer CTFA / INCI [weight%]
Phase A Phase A
Keratinhydrolysat (25%) OTC GmbH Hydrolyzed Keratin 30,00 Keratin hydrolyzate (25%) OTC GmbH Hydrolyzed Keratin 30,00
1,3 Butandiol Merck KGaA Butylene Glycol 10,001,3 Butanediol Merck KGaA Butylene Glycol 10,00
Plantacare 810 UP Cognis Deutschland GmbH Caprylyl/Capryl Glucoside 10,00Plantacare 810 UP Cognis Germany GmbH Caprylyl / Capryl Glucoside 10,00
Natriumhydrosulfit N Brüggemann Sodium Hydrosulfite 1,00 Sodium hydrosulfite N Brüggemann Sodium hydrosulfite 1.00
KOH-Plätzchen Merck KGaA Potassium Hydroxide 1,00 demin. Wasser Aqua/W ater 48,00  KOH Cookies Merck KGaA Potassium Hydroxide 1.00 demin. Water Aqua / Wather 48,00
Summe: 100,00 Total: 100.00

Claims

Patentansprüche claims
1. Verfahren zum Dispergieren einer dispersen Phase in einem flüssigen Dispersionsmittel, aufweisend die Verfahrensschritte:  A process for dispersing a disperse phase in a liquid dispersant, comprising the steps of:
- Bereitstellen eines flüssigen Dispersionsmittels,  Providing a liquid dispersant,
- Bereitstellen einer dispersen Phase  - Providing a disperse phase
- Bereitstellen eines Dispergators, und  - Providing a dispersant, and
- Mischen der dispersen Phase mit dem flüssigen Dispersionsmittel unter Zugabe des Dispergators,  Mixing the disperse phase with the liquid dispersion medium with the addition of the dispersant,
dadurch gekennzeichnet, dass als Dispergator ein Proteinhydrolysat zugegeben wird.  characterized in that a protein hydrolyzate is added as a dispersant.
2. Verfahren nach Anspruch 1, wobei als Dispersionsmittel Wasser, eine wässrige Lösung oder ein hydrophobes Lösungsmittel bereitgestellt wird. 2. The method of claim 1, wherein as the dispersant water, an aqueous solution or a hydrophobic solvent is provided.
3. Verfahren nach einem der vorhergehenden Ansprüche, wobei als disperse Phase ein Feststoff oder eine in dem bereitgestellten Dispersionsmittel nicht mischbare flüssige Phase bereitgestellt wird. A process according to any one of the preceding claims, wherein the disperse phase is a solid or a liquid phase which is immiscible in the dispersant provided.
4. Verfahren nach einem der vorhergehenden Ansprüche, wobei als Proteinhydrolysat ein Hydrolysat eines Proteins mit einer aufeinanderfolgenden Sequenz von Aminosäuren mit polaren und unpolaren Seitengruppen bereitgestellt wird. 4. The method according to any one of the preceding claims, wherein as the protein hydrolyzate a hydrolyzate of a protein is provided with a successive sequence of amino acids with polar and non-polar side groups.
5. Verfahren nach einem der vorhergehenden Ansprüche, wobei als ein Proteinhydrolysat ein Keratinhydrolysat bereitgestellt wird. 5. The method according to any one of the preceding claims, wherein a keratin hydrolyzate is provided as a protein hydrolyzate.
6. Verfahren nach einem der vorhergehenden Ansprüche, wobei der Dispergator der herzustellenden Dispersion in einer Konzentration zwischen >1 Gew.- und <50 Gew.- , bevorzugt zwischen >3 Gew.- und <35 Gew.- , noch bevorzugter zwischen >5 Gew.- und <25 Gew.- zugegeben wird. 6. The method according to any one of the preceding claims, wherein the dispersant of the dispersion to be prepared in a concentration between> 1 wt .- and <50 wt .-, preferably between> 3 wt .- and <35 wt .-, more preferably between> 5 Gew.- and <25 Gew - is added.
7. Verfahren nach einem der Ansprüche 1 bis 6, wobei als disperse Phase ein Pigment bereitgestellt wird. 7. The method according to any one of claims 1 to 6, wherein a pigment is provided as the disperse phase.
8. Verfahren nach Anspruch 7, wobei als disperse Phase Titandioxid und/oder Zinkoxid bereitgestellt wird. 8. The method of claim 7, wherein titanium dioxide and / or zinc oxide is provided as a disperse phase.
9. Verwendung eines Proteinhydrolysates als Dispergator, Netzmittel, Flotationshilfsmittel und/oder als waschaktiver Bestandteil in einem Waschmittel. 9. Use of a protein hydrolyzate as a dispersant, wetting agent, flotation aid and / or as a washing-active ingredient in a detergent.
10. Verwendung gemäß Anspruch 9, wobei das dem Proteinhydrolysat zugrundeliegende Protein eine aufeinanderfolgende Sequenz von Aminosäuren mit polaren und unpolaren Seitengruppen aufweist. 10. Use according to claim 9, wherein the protein underlying the protein hydrolyzate has a consecutive sequence of amino acids with polar and non-polar side groups.
11. Verwendung nach einem der Ansprüche 9 oder 10, wobei das Proteinhydrolysat ein Keratinhydrolysat ist. Use according to any one of claims 9 or 10, wherein the protein hydrolyzate is a keratin hydrolyzate.
12. Verwendung nach einem der Ansprüche 9 bis 11, wobei das Proteinhydrolysat als Dispergator in einer Pigment-haltigen Dispersion, vorzugsweise in einer Dispersions- färbe oder einem Dispersionslack oder einer ölbasierten Pigment-haltigen Dispersion verwendet wird. 12. Use according to any one of claims 9 to 11, wherein the protein hydrolyzate is used as a dispersant in a pigment-containing dispersion, preferably in a dispersion dye or a dispersion varnish or an oil-based pigment-containing dispersion.
13. Verwendung nach einem der Ansprüche 9 bis 11, wobei das Proteinhydrolysat als Netzmittel in einer Zusammensetzung zur Reinigung von Fahrzeugfelgen verwendet wird. Use according to any one of claims 9 to 11, wherein the protein hydrolyzate is used as wetting agent in a composition for cleaning vehicle rims.
14. Verwendung gemäß einem der Ansprüche 9 bis 11, wobei das Proteinhydrolysat als Flotationshilfsmittel bei der Aufbereitung von Kohlen und/oder Erzen verwendet wird. 14. Use according to any one of claims 9 to 11, wherein the protein hydrolyzate is used as Flotationshilfsmittel in the treatment of coal and / or ores.
EP12759718.5A 2011-09-21 2012-09-17 Method for producing a dispersion and use of protein hydrolysates as dispersants Withdrawn EP2758159A1 (en)

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DE102011053829A DE102011053829A1 (en) 2011-09-21 2011-09-21 Process for the preparation of a dispersion and use of protein hydrolysates as dispersants
PCT/EP2012/068260 WO2013041492A1 (en) 2011-09-21 2012-09-17 Method for producing a dispersion and use of protein hydrolysates as dispersants

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CN105586178B (en) * 2016-01-25 2018-09-11 王家高 A kind of nontoxic meal wash is net and its manufacturing method
CN109233641A (en) * 2017-06-13 2019-01-18 上海三银涂料科技股份有限公司 The aqueous colorful building coating and preparation method thereof of super resistance to wiping spot-resistant
CN113477405B (en) * 2021-05-24 2022-05-27 长沙矿冶研究院有限责任公司 Beneficiation activator for sphalerite and willemite and method for reducing zinc by flotation of iron ore concentrate

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JP6023925B2 (en) 2016-11-09
US20140225021A1 (en) 2014-08-14
WO2013041492A1 (en) 2013-03-28
CA2849036A1 (en) 2013-03-28
CN103889565B (en) 2017-08-08
JP2014526592A (en) 2014-10-06
KR20140057655A (en) 2014-05-13
BR112014006654A2 (en) 2017-04-04
CA2849036C (en) 2017-01-24
CN103889565A (en) 2014-06-25

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