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EP1339790A1 - Gepfropfte kammpolymere auf basis von acryloyldimethyltaurinsäure - Google Patents

Gepfropfte kammpolymere auf basis von acryloyldimethyltaurinsäure

Info

Publication number
EP1339790A1
EP1339790A1 EP01989523A EP01989523A EP1339790A1 EP 1339790 A1 EP1339790 A1 EP 1339790A1 EP 01989523 A EP01989523 A EP 01989523A EP 01989523 A EP01989523 A EP 01989523A EP 1339790 A1 EP1339790 A1 EP 1339790A1
Authority
EP
European Patent Office
Prior art keywords
acid
mol
copolymers
vinyl
copolymers according
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Withdrawn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
EP01989523A
Other languages
German (de)
English (en)
French (fr)
Inventor
Roman MORSCHHÄUSER
Matthias LÖFFLER
Ilka Maier
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 Produkte Deutschland GmbH
Original Assignee
Clariant GmbH
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 Clariant GmbH filed Critical Clariant GmbH
Publication of EP1339790A1 publication Critical patent/EP1339790A1/de
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • A61K8/8158—Homopolymers or copolymers of amides or imides, e.g. (meth) acrylamide; Compositions of derivatives of such polymers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/817—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions or derivatives of such polymers, e.g. vinylimidazol, vinylcaprolactame, allylamines (Polyquaternium 6)
    • A61K8/8182—Copolymers of vinyl-pyrrolidones. Compositions of derivatives of such polymers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
    • A61K8/86—Polyethers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q19/00—Preparations for care of the skin
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00
    • C08F265/04—Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00 on to polymers of esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F271/00—Macromolecular compounds obtained by polymerising monomers on to polymers of nitrogen-containing monomers as defined in group C08F26/00
    • C08F271/02—Macromolecular compounds obtained by polymerising monomers on to polymers of nitrogen-containing monomers as defined in group C08F26/00 on to polymers of monomers containing heterocyclic nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
    • C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
    • C08F290/06—Polymers provided for in subclass C08G
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/003—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/54—Polymers characterized by specific structures/properties

Definitions

  • the present invention relates to grafted comb polymers based on acryloyldimethyltauric acid or acryloyldimethyltaurates.
  • thickeners based on acryloyldimethyltauric acid (AMPS) or their salts were introduced onto the market (EP 816 403 and WO 98/00094). Both as homo- and in the form of the copolymers ( ® Aristoflex AVC, Clariant GmbH), such thickeners are superior to the corresponding polycarboxylates (carbopoles) in many respects.
  • thickener systems based on AMPS show excellent properties in pH ranges below pH 6, i.e. in a pH range in which can no longer be used with conventional polycarboxylate thickeners.
  • the easy processability and the favorable toxicological profile of the main monomer give these thickeners a high application potential.
  • the microgel structure of such thickeners leads to a particularly pleasant feeling on the skin.
  • a disadvantage of thickeners based on acryloyldimethyltauric acid is the frequently occurring opalescence of their dilute, aqueous gels.
  • the reason for the opalescence is the strong scattering of visible light in over-crosslinked polymer components, which arise during the polymerization and are not sufficiently swollen in water.
  • grafted comb polymers based on acryloyldimethyltauric acid which can be obtained by polymerizing in the presence of a polymeric additive, have very good thickening and emulsifying / dispersing properties and also have a clear appearance.
  • the invention relates to water-soluble or water-swellable copolymers, obtainable by radical copolymerization of
  • the copolymers according to the invention preferably have a molecular weight of 10 3 g / mol to 10 9 g / mol, particularly preferably 10 4 to 10 7 g / mol, particularly preferably 5 * 10 4 to 5 * 10 6 g / mol.
  • the Acryloyldimethyltauraten can be the inorganic or organic salts of Acryloyldimethyltaurinklare.
  • the Li + , Na + , K + , Mg ++ , Ca ++ , Al +++ and / or NH 4 + salts are preferred.
  • the monoalkylammonium, dialkylammonium, trialkylammonium and / or tetraalkylammonium salts are likewise preferred, it being possible for the alkyl substituents of the amines, independently of one another, to be (dC 22 ) alkyl radicals or (C 2 -C 1 0 ) hydroxyalkyl radicals.
  • one to three times ethoxylated ammonium compounds with different degrees of ethoxylation are preferred. It should be noted that mixtures of two or more of the above representatives are also within the meaning of the invention.
  • the degree of neutralization of acryloyldimethyltauric acid can be between 0 and 100%, a degree of neutralization of above 80% is particularly preferred.
  • the content of acryloyldimethyltauric acid or acryloyldimethyltaurates is at least 0.1% by weight, preferably 20 to 99.5% by weight, particularly preferably 50 to 98% by weight.
  • All olefinically unsaturated monomers can be used as comonomers B), the reaction parameters of which allow a copolymerization with acryloyldimethyltauric acid and / or acryloyldimethyltaurates in the respective reaction media.
  • Preferred comonomers B) are unsaturated carboxylic acids and their anhydrides and salts, and also their esters with aliphatic, olefinic, cycloaliphatic, arylaliphatic or aromatic alcohols with a carbon number of 1 to 22.
  • Particularly preferred unsaturated carboxylic acids are acrylic acid, methacrylic acid, styrene sulfonic acid, maleic acid, fumaric acid, crotonic acid, itaconic acid and senecioic acid.
  • Preferred counterions are Li ⁇ Na ⁇ K ⁇ Mg ++ , Ca ++ , Al +++ , NH 4 + , monoalkylammonium, dialkylammonium, trialkylammonium and / or tetraalkylammonium radicals, where the alkyl substituents are the amines can independently of one another be (C 1 -C 22 ) alkyl radicals or (C 2 -C ⁇ o) hydroxyalkyl radicals.
  • one to three times ethoxylated ammonium compounds with different degrees of ethoxylation can also be used.
  • the degree of neutralization of the carboxylic acids can be between 0 and 100%.
  • Open-chain N-vinylamides are also preferred as comonomers
  • N-vinylformamide (VIFA), N-vinylmethylformamide, N-vinylmethylacetamide (VIMA) and N-vinylacetamide; cyclic N-vinylamides (N-vinyllactams) with a ring size of 3 to 9, preferably N-vinylpyrrolidone (NVP) and N-vinylcaprolactam;
  • Amides of acrylic and methacrylic acid preferably acrylamide, methacrylamide,
  • comonomers B are inorganic acids and their
  • Salts and esters Preferred acids are vinylphosphonic acid, vinylsulfonic acid,
  • the proportion by weight of comonomers B), based on the total mass of the copolymers, can be 0 to 99.7% by weight and is preferably 0.5 to 80% by weight, particularly preferably 2 to 50% by weight.
  • Macromonomer C used.
  • the macromonomers are at least simple olefinically functionalized polymers with one or more discrete repeat units and a number average molecular weight greater than or equal to 200 g / mol. Mixtures of chemically different macromonomers C) can also be used in the copolymerization.
  • the macromonomers are polymeric structures which are composed of one or more repeating unit (s) and have a molecular weight distribution which is characteristic of polymers.
  • Preferred macromonomers C) are compounds of the formula (I).
  • R 1 represents a polymerizable function from the group of vinylically unsaturated compounds which are suitable for building polymer structures by radical means.
  • a suitable bridging group Y is required to bind the polymer chain to the reactive end group.
  • Preferred bridges Y are -O-, -C (O) -, -C (O) -O-, -S-, -O-CH 2 -CH (O -) - CH 2 OH, -O-CH 2 - CH (OH) -CH 2 O-, -O-SO 2 -O-, -O-SO 2 -O-, -O-SO-O-, -PH-, -P (CH 3 ) -, -PO 3 -, -NH- and -N (CH 3 ) -, particularly preferably -O-.
  • the polymer middle part of the macromonomer is represented by the discrete repeat units A, B, C and D.
  • Preferred repeating units A, B, C and D are derived from acrylamide, methacrylamide, ethylene oxide, propylene oxide, AMPS, acrylic acid, methacrylic acid, methyl methacrylate, acrylonitrile, maleic acid, vinyl acetate, styrene, 1, 3-butadiene, isoprene, isobutene, diethylacrylamide and diisopropylacrylamide , especially ethylene oxide and propylene oxide.
  • the indices v, w, x and z in formula (I) represent the stoichiometric
  • v, w, x and z independently of one another are 0 to 500, preferably 1 to 30, the sum of the four coefficients on average having to be ⁇ 1.
  • the distribution of the repeating units over the macromonomer chain can be statistical, block-like, alternating or gradient-like.
  • R 2 denotes a linear or branched aliphatic, olefinic, cycloaliphatic, arylaliphatic or aromatic (-C-C 5 o) hydrocarbon residue, OH, -NH 2 , -N (CH 3 ) 2 or is the same as the structural unit [-YR 1 ].
  • Particularly preferred macromonomers C) are acrylic or methacrylic monofunctionalized alkyl ethoxylates of the formula (II).
  • R 4, R 5 and R5 independently of one another are hydrogen or n-aliphatic, iso-aliphatic, olefinic, cycloaliphatic, arylaliphatic or aromatic (CrC 3 o) hydrocarbon radicals.
  • R 3 and R 4 are preferably H or —CH 3 , particularly preferably H; R is H or -CH 3 ; and R ⁇ is equivalent to an n-aliphatic, iso-aliphatic, olefinic, cycloaliphatic, arylaliphatic or aromatic (C 1 -C 30 ) hydrocarbon radical.
  • v and w are in turn the stoichiometric coefficients relating to the ethylene oxide units (EO) and propylene oxide units (PO), v and w are independently 0 to 500, preferably 1 to 30, the sum of v and w having to be ⁇ 1 on average.
  • the distribution of the EO and PO units over the macromonomer chain can be statistical, block-like, alternating or gradient-like.
  • Y stands for the bridges mentioned above.
  • Particularly preferred macromonomers C) have the following structure according to formula (II):
  • the molecular weight of the macromonomers C) is preferably 200 g / mol to 10 6 g / mol, particularly preferably 150 to 10 4 g / mol and particularly preferably 200 to 5000 g / mol.
  • the proportion by weight of the macromonomer C), based on the total mass of the copolymers, can be 0.1 to 99.8% by weight, particularly preferably 2 to 90% by weight, particularly preferably 5 to 80% by weight.
  • the copolymerization is carried out in the presence of at least one polymeric additive D), the additive D) being completely or completely removed from the polymerization medium before the actual copolymerization is added partially dissolved.
  • the use of several additives D) is also according to the invention.
  • Crosslinked additives D) can also be used.
  • the additives D) or their mixtures need only be wholly or partly soluble in the chosen polymerization medium.
  • additive D has several functions. On the one hand, it prevents the formation of over-crosslinked polymer fractions in the copolymer being formed in the actual polymerization step and, on the other hand, additive D) is statistically attacked by active radicals in accordance with the generally known mechanism of graft copolymerization. This leads to the fact that, depending on additive D), more or less large proportions thereof are incorporated into the copolymers.
  • suitable additives D) have the property of changing the solution parameters of the copolymers formed during the radical polymerization reaction in such a way that the average molecular weights are shifted to higher values. Compared with analog copolymers which were produced without the addition of additives D), those which were prepared with the addition of additives D) advantageously show a significantly higher viscosity in aqueous solution.
  • Preferred additives D) are water and / or alcohol-soluble homopolymers and copolymers. Copolymers are also to be understood as meaning those with more than two different types of monomers.
  • Particularly preferred additives D) are homopolymers and copolymers of N-vinylformamide, N-vinyl acetamide, N-vinyl pyrrolidone, ethylene oxide, propylene oxide, acryloyldimethyltauric acid, N-vinyl caprolactam, N-vinyl methylacetamide, acrylamide, acrylic acid, methacrylic acid, N-vinyl morpholide, hydroxyethyl methacrylate, Diallyldimethylammonium chloride (DADMAC) and / or [2- (methacryloyloxy) ethyl] trimethylammonium chloride (MAPTAC); Polyalkylene glycols and / or alkyl polyglycols.
  • Particularly preferred additives D) are polyvinylpyrrolidones (eg K15 ®, K20 and K30 * ® from BASF), poly (N-vinylformamides), poly (N-vinylcaprolactams) and Copolymers of N-vinylpyrrolidone, N-vinylformamide and / or acrylic acid, which can also be partially or completely saponified.
  • polyvinylpyrrolidones eg K15 ®, K20 and K30 * ® from BASF
  • poly (N-vinylformamides) poly (N-vinylcaprolactams)
  • Copolymers of N-vinylpyrrolidone, N-vinylformamide and / or acrylic acid which can also be partially or completely saponified.
  • the molecular weight of the additives D) is preferably 10 2 to 10 7 g / mol, particularly preferably 0.5 * 10 4 to 10 6 g / mol.
  • the content of polymeric additives D), based on the total mass of the copolymers, is 0.1 to 99.8% by weight, preferably 0.1 to 90% by weight, particularly preferably 1 to 20% by weight, in particular preferably 1.5 to 10% by weight.
  • the copolymers according to the invention are crosslinked, i.e. they contain comonomers with at least two polymerizable vinyl groups.
  • Preferred crosslinkers are methylene bisacrylamide; methylenebismethacrylamide; Esters of unsaturated monocarboxylic and polycarboxylic acids with polyols, preferably diacrylates and triacrylates or methacrylates, particularly preferably butanediol and ethylene glycol diacrylate or methacrylate, trimethylolpropane triacrylate (TMPTA) and allyl compounds, preferably allyl (meth) acrylate, triallylcyanuryl ester, maleic acid allyl allyl anilide, maleic acid allyl allyl allyl allyl allyl allyl allyl, , Triallylamine, tetraallylethylenediamine; Allyl esters of phosphoric acid; and / or vinylphosphonic acid derivatives.
  • TMPTA trimethylolpropane triacrylate
  • allyl compounds preferably allyl (meth) acrylate, triallylcyanuryl ester, maleic acid ally
  • TMPTA Trimethylolpropane triacrylate
  • the proportion by weight of crosslinking comonomers, based on the total mass of the copolymers, is preferably up to 20% by weight, particularly preferably 0.05 to 10% by weight and particularly preferably 0.1 to 7% by weight.
  • All organic or inorganic solvents can be used as the polymerization medium which are largely inert with respect to radical polymerization reactions and which advantageously permit the formation of medium or high molecular weights.
  • Water is preferred; lower alcohols; preferably methanol, ethanol, propanols, iso-, sec- and t- Butanol, particularly preferably t-butanol; Hydrocarbons with 1 to 30 carbon atoms and mixtures of the aforementioned compounds.
  • the polymerization reaction is preferably carried out in the temperature range between 0 and 150 ° C., particularly preferably between 10 and 100 ° C., both under normal pressure and under elevated or reduced pressure. If necessary, the polymerization can also be carried out under a protective gas atmosphere, preferably under nitrogen.
  • High-energy electromagnetic radiation, mechanical energy or the usual chemical polymerization initiators such as organic peroxides, for example benzoyl peroxide, tert-butyl hydroperoxide, methyl ethyl ketone peroxide, cumene hydroperoxide, dilauroyl peroxide (DLP) or azo initiators, such as, for example, azodiisobutyronitrile (AIBN), can be used to trigger the polymerization.
  • organic peroxides for example benzoyl peroxide, tert-butyl hydroperoxide, methyl ethyl ketone peroxide, cumene hydroperoxide, dilauroyl peroxide (DLP) or azo initiators, such as, for example, azodiisobutyronitrile (AIBN)
  • AIBN azodiisobutyronitrile
  • inorganic peroxy compounds such as (NH 4 ) 2 S 2 O 8 , K 2 S 2 O ⁇ or H 2 O 2 , optionally in combination with reducing agents (for example sodium bisulfite, ascorbic acid, iron (II) sulfate etc.) or Redox systems which contain an aliphatic or aromatic sulfonic acid (eg benzenesulfonic acid, toluenesulfonic acid etc.) as reducing component.
  • reducing agents for example sodium bisulfite, ascorbic acid, iron (II) sulfate etc.
  • Redox systems which contain an aliphatic or aromatic sulfonic acid (eg benzenesulfonic acid, toluenesulfonic acid etc.) as reducing component.
  • the polymerization reaction can e.g. performed as precipitation polymerization, emulsion polymerization, bulk polymerization, solution polymerization or gel polymerization.
  • Precipitation polymerization, preferably in tert-butanol, is particularly advantageous for the property profile of the copolymers according to the invention.
  • the multifunctional copolymers according to the invention have a great variety of structures and consequently a wide range of potential uses which can be tailored to almost any question in which interface or surface effects play a role. In particular, should also on the
  • the polymer was produced by the precipitation process in tert. Butanol.
  • the monomers were initially introduced into t-butanol, and the reaction mixture was then initiated after heating to 60 ° C. by adding DLP.
  • the polymer was isolated by suction extraction of the solvent and subsequent vacuum drying.
  • the polymer In 1% solution in distilled water, the polymer had a clear appearance with a viscosity of 45,000 mPas. In comparison, the unmodified gel with the same composition - only the polymer additive is missing - shows a significantly more opalescent appearance and a viscosity of 40,000 mPas under the same measurement conditions.
  • the polymer was made in water by the gel polymerization process.
  • the monomers were dissolved in water, the reaction mixture was rendered inert, and the reaction was then initiated after heating to 65 ° C. by adding sodium peroxodisulfate.
  • the polymer gel was then crushed and the polymer isolated using vacuum drying.
  • the polymer was made in water by the emulsion process.
  • the monomers were emulsified in a water / cyclohexane using ® Span 80, then the reaction mixture was rendered inert using N 2 and the reaction was then started after heating to 80 ° C. by adding sodium peroxodisulfate.
  • the polymer emulsion was then evaporated (cyclohexane acts as a tug for water) and the polymer isolated.
  • the polymer was tert in the precipitation process. Butanol made. The monomers were initially introduced in t-butanol, the reaction mixture was rendered inert, and the reaction was then initiated after heating to 60 ° C. by adding AIBN. The polymer was isolated by suction extraction of the solvent and subsequent vacuum drying.
  • the polymer In 1% solution in distilled water, the polymer had a clear appearance with a viscosity of 65,000 mPas. In comparison, the unmodified gel with the same composition - only the polymer additive is missing - showed a significantly more opalescent appearance and a viscosity of 50,000 mPas under the same measurement conditions.
  • the polymer was made by the solution method in water. The monomers were dissolved in water, the reaction mixture was rendered inert, and the reaction was then initiated by heating to 55 ° C. using an iron (II) sulfate / H 2 O 2 redox couple. The polymer solution was then evaporated and the polymer isolated by vacuum drying.
  • the polymer was tert in the precipitation process. Butanol made. The monomers were initially introduced into t-butanol, the reaction mixture was rendered inert, and the reaction was then initiated after heating to 60 ° C. by adding DLP. The polymer was isolated by suction extraction of the solvent and subsequent vacuum drying.
  • the polymer was tert in the solution process. Butanol made. The monomers were initially introduced into t-butanol, the reaction mixture was rendered inert, and the reaction was then initiated after heating to 70 ° C. by adding DLP. The polymer was isolated by evaporation of the solvent and subsequent vacuum drying.
  • the polymer was made in an isopropanol / water mixture by the solution method.
  • the monomers were initially charged in isopropanol / water, the reaction mixture was rendered inert, and the reaction was then initiated after heating to 55 ° C. by adding potassium peroxodisulfate.
  • the polymer was isolated by evaporation of the solvent mixture and subsequent vacuum drying.
  • the ® Genapol types are products from Clariant GmbH.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Birds (AREA)
  • Dermatology (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polymerisation Methods In General (AREA)
EP01989523A 2000-12-01 2001-11-28 Gepfropfte kammpolymere auf basis von acryloyldimethyltaurinsäure Withdrawn EP1339790A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10059829A DE10059829A1 (de) 2000-12-01 2000-12-01 Gepfropfte Kammpolymere auf Basis von Acryloyldimethyltaurinsäure
DE10059829 2000-12-01
PCT/EP2001/013855 WO2002044268A1 (de) 2000-12-01 2001-11-28 Gepfropfte kammpolymere auf basis von acryloyldimethyltaurinsäure

Publications (1)

Publication Number Publication Date
EP1339790A1 true EP1339790A1 (de) 2003-09-03

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EP01989523A Withdrawn EP1339790A1 (de) 2000-12-01 2001-11-28 Gepfropfte kammpolymere auf basis von acryloyldimethyltaurinsäure

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Country Link
US (1) US6964995B2 (pt)
EP (1) EP1339790A1 (pt)
JP (1) JP2002201238A (pt)
BR (1) BR0115839A (pt)
DE (1) DE10059829A1 (pt)
WO (1) WO2002044268A1 (pt)

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US6964995B2 (en) 2005-11-15
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JP2002201238A (ja) 2002-07-19
US20040116628A1 (en) 2004-06-17

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