JP2014504668A - Dendritic polyether-polyurethane thickener - Google Patents

Abstract

  The present invention relates to an associative polyether polyurethane thickener, in which a dendritic polyether polyol is polymerized and introduced, the production of the thickener, in particular the use of the thickener in a cosmetic preparation About.

Description

  The present invention relates to associative polyether-polyurethane thickeners in which dendritic polyether polyols are polymerized (einpolymerisiert), formulations of the thickeners, and in particular in cosmetic formulations. About the use of.

  Polyurethane-based associative thickeners belong to the prior art. They are described in detail, for example, in US Pat. No. 4,079,028 and US Pat. No. 4,155,892.

  The “star products” (Group B) and “complex polymers” (Group C) described in US Pat. No. 4,079,028 include polyurethanes polymerized with polyhydric alcohols. These polyhydric alcohols are low molecular weight compounds such as trimethylolpropane, pentaerythritol, sorbitol, erythritol, mannitol or dipentaerythritol.

  EP 1566393 (Cognis) includes (a) one or more polyfunctional isocyanates and (b) one or more polyether polyols, (c) one or more monohydric alcohols and (d) as desired. A thickener based on an aqueous preparation of a nonionic, water-dispersible or water-soluble polyurethane, which can be produced by reacting with one or more polyhydric alcohols is described, wherein the compound (D) contains no further functional groups in addition to OH groups. The polyhydric alcohol (d) comprises at least mainly a trihydric alcohol such as glycerol or preferably trimethylolpropane.

  EP 1765900 (Cognis) describes thickeners based on aqueous formulations of nonionic, water-dispersible or water-soluble polyurethanes having a specific structure. The special structure of these polymers is achieved by the presence of allophanate linkages, which are produced by using an excess of isocyanate. As component (a) it is possible to use hydrophilic polyols having at least two OH groups, which may additionally contain ether groups.

  EP 1584331 (Shiseido) describes polyurethane thickeners for cosmetic preparations. The polyurethane may be branched. The original polyol and its alkoxylated derivatives are described in paragraphs [38] and [39].

  EP 725097 (Bayer) also describes polyurethane thickeners. Branching may optionally be introduced into the polyurethane using component a4). a4) is a trivalent to hexavalent alcohol in the molecular weight range of 92 to 600, preferably 92 to 400, particularly preferably 92 to 200, such as glycerol, trimethylolpropane, pentaerythritol and / or sorbitol. If used at all, it is preferred to use glycerol or trimethylolpropane.

で示される分枝状ポリウレタン増粘剤が記載されている。
ここで、Ａは親水性ポリオールであり、好ましくはトリメチロールプロパン、［２-エチル-２-(ヒドロキシメチル)-１,３-プロパンジオール］、ペンタエリスリトール、グリセロールおよびソルビトールから選択される。 European Patent No. 978522 (National Starch) includes the following formula:

Branched polyurethane thickeners are described.
Here, A is a hydrophilic polyol, preferably selected from trimethylolpropane, [2-ethyl-2- (hydroxymethyl) -1,3-propanediol], pentaerythritol, glycerol and sorbitol.

  US 2009/0286940 (DIC Corp.) describes the preparation of hyperbranched polyether polyols by ring-opening polymerization of hydroxyalkyl oxetanes and monofunctional epoxides, and polyurethanes based on such hyperbranched polyether polyols. Is described.

  US 2009/0082483 discloses a polyurethane based on the reaction product of polyisocyanate and polyglycerol which has been hydrophobically modified prior to urethanization using transesterification with a naturally occurring polyol ester. The form is listed.

  WO 2009/101141 describes a dendritic reaction using an acidic catalyst to react at least one trivalent or more polyhydric alcohol and optionally further divalent and / or monohydric alcohols and / or denaturing reagents. A process for the production of gaseous polyetherols is described. Furthermore, the use of these polyetherols as possible building blocks for producing polyaddition or polycondensation polymers is described.

  German Offenlegungsschrift 10211664 describes the synthesis of hyperbranched polyglycerols by ring-opening polymerization of glycidol.

U.S. Pat. No. 4,079,028 U.S. Pat. No. 4,155,892 EP 1566393 EP 1765900 European Patent No. 1584331 EP 725097 specification European Patent No. 978522 US Patent Application Publication No. 2009/0286940 US Patent Application Publication No. 2009/0082483 International Publication No. 2009/101141 Pamphlet German Patent Application No. 10211664

The subject of the present invention is suitable for cosmetic applications for the following reasons:
A) A higher viscosity can be achieved compared to conventional associative thickeners;
B) Increased solubility in water;
C) To provide thickeners that are distinguished from known thickeners in the selectivity of adapting the molecular structure to different demands.

［式中、
Ｒ^１は、Ｃ_６-Ｃ_４０-アルキル、Ｃ_６-Ｃ_４０-アルケニル、Ｃ_３-Ｃ_１０-シクロアルキル、Ｃ_６-Ｃ_３０-アリール、Ｃ_７-Ｃ_４０-アリールアルキルから選択され、
Ｒ^２は、Ｃ_２-Ｃ_１０-アルキレン、Ｃ_６-Ｃ_１０-アリーレン、Ｃ_７-Ｃ_１０-アリールアルキレンから選択され、
ｎは、０〜２００である］
で示される少なくとも１種のアルコール、
ｃ）少なくとも１種の樹枝状ポリエーテルポリオール、
ｄ）任意に、
ｉ．少なくとも２個のＯＨ基、および
ｉｉ．エーテル基およびエステル基から選択される少なくとも２個の基
を含み、ｂ）およびｃ）と異なり、少なくとも３００ｇ／ｍｏｌの分子量Ｍ_ｎを有する少なくとも１種の化合物、
ｅ）任意に、１分子あたり１〜９個の範囲のイソシアネート基に対する反応性基を有するさらなる化合物
を重合導入形態で含む、ポリマーを提供する。 The present invention
a) at least one polyisocyanate;
b) General formula I:

[Where:
R ¹ is selected from C ₆ -C ₄₀ -alkyl, C ₆ -C ₄₀ -alkenyl, C ₃ -C ₁₀ -cycloalkyl, C ₆ -C ₃₀ -aryl, C ₇ -C ₄₀ -arylalkyl,
R ² is selected from C ₂ -C ₁₀ -alkylene, C ₆ -C ₁₀ -arylene, C ₇ -C ₁₀ -arylalkylene;
n is 0 to 200]
At least one alcohol represented by
c) at least one dendritic polyether polyol,
d) Optionally,
i. At least two OH groups, and ii. At least one compound comprising at least two groups selected from ether groups and ester groups and having a molecular weight M _n of at least 300 g / mol, unlike b) and c);
e) Provide a polymer optionally comprising further compounds in the form of polymerization introduction having a reactive group for isocyanate groups in the range of 1 to 9 per molecule.

  In a preferred embodiment, the polymers of the present invention are water soluble or water dispersible.

  In the context of the present invention, “water-soluble” means that a substance referred to as water-soluble, ie for example a polymer according to the invention, dissolves at least 1 g, preferably at least 10 g in 1 liter of demineralized water and is visible to the human eye. Means to give a clear solution.

  In the context of the present invention, “water-dispersible” means that the substance referred to as water-dispersible, ie for example a polymer according to the invention is 1 μm without precipitation at least 1 g, preferably at least 10 g, in 1 liter of demineralized water. It means that it is dispersed with the maximum average particle size of.

  In a preferred embodiment, the polymer of the present invention is uncrosslinked. In the context of the present invention, “uncrosslinked” means that the degree of crosslinking is present at less than 15% by weight, preferably less than 10% by weight, in particular less than 5% by weight, as measured by the insoluble fraction of the polymer. The insoluble fraction of the polymer is the same solvent used for gel permeation chromatography for measuring the molecular weight distribution of the polymer, ie tetrahydrofuran, dimethylacetamide, depending on which solvent the polymer is more soluble in. Alternatively, it is measured by extracting with hexafluorisopropanol for 4 hours in a Soxhlet extractor, drying the residue to a constant weight and weighing the remaining residue.

  In preferred embodiments, the polymers of the present invention are water soluble or water dispersible and uncrosslinked.

a) Polyisocyanate According to the invention, a polyisocyanate is a compound having at least 2 and at most 4 isocyanate groups per molecule. Suitable polyisocyanates preferably contain an average of 2 (diisocyanate) to a maximum of 4 NCO groups per molecule, with diisocyanates being particularly preferred.

  For example, suitable isocyanates that may be mentioned are: 1,5-naphthylene diisocyanate, 4,4′-diphenylmethane diisocyanate (MDI), xylylene diisocyanate (XDI), tetramethylxylene diisocyanate (TMXDI), 4,4 '-Diphenyldimethylmethane diisocyanate, di- and tetraalkyldiphenylmethane diisocyanate, 4,4-dibenzyl diisocyanate, 1,3-phenylene diisocyanate, 1,4-phenylene diisocyanate, isomers of tolylene diisocyanate (TDI), optionally mixtures 1-methyl-2,4-diisocyanatocyclohexane, 1,6-diisocyanato-2,2,4-trimethylhexane, 1-isocyanatomethyl-S-isocyanato-1-trimethyl-cyclohexane, 4,4'- Diisocyana Phenylperfluoroethane, tetramethoxybutane 1,4 diisocyanate, butane 1,4-diisocyanate, hexane 1,6-diisocyanate (HDI), isophorone diisocyanate (IPDI), dicyclohexylmethane diisocyanate, cyclohexane 1,4-diisocyanate, ethylene diisocyanate, Bis-isocyanatoethyl phthalate.

  In a preferred embodiment, the polymers according to the invention contain cycloaliphatic or aliphatic diisocyanate groups which are polymerized (condensed-in), particularly preferably aliphatic diisocyanate groups.

  Examples of condensation-introduced aliphatic diisocyanates that may be mentioned are: 1,4-butylene diisocyanate, 1,12-dodecamethylene diisocyanate, 1,10-decamethylene diisocyanate, 2-butyl-2-ethylpentamethylene diisocyanate, 2,4,4- or 2,2,4-trimethylhexamethylene diisocyanate, especially hexamethylene diisocyanate (hexane 1,6-diisocyanate, HDI).

Examples of condensation-introduced alicyclic diisocyanates that may be mentioned are: isophorone diisocyanate (IPDI), 2-isocyanatopropylcyclohexyl isocyanate, 4-methylcyclohexane 1,3-diisocyanate (H-TDI) and 1,3- Bis (isocyanatomethyl) cyclohexane. Also, diisocyanates referred to as so-called H ₁₂ -MDI or “saturated MDI”, such as 4,4′-methylenebis (cyclohexyl isocyanate) (also referred to as dicyclohexylmethane 4,4′-diisocyanate) or 2,4′- Methylene bis (cyclohexyl) diisocyanate may also be present as a group in the polyurethanes of the present invention.

  In a preferred embodiment, a) is hexamethylene diisocyanate or contains hexamethylene diisocyanate.

  In a further preferred embodiment, a) is isophorone diisocyanate or comprises isophorone diisocyanate.

  It is of course possible to use a mixture of polyisocyanates as a).

b) Alcohols of general formula I In one embodiment, R ¹ is C ₆ -C ₄₀ -alkyl. In a preferred embodiment, this is a C ₆ -C ₃₀ -alkyl group, particularly preferably a C ₈ -C ₃₀ -alkyl group, very particularly preferably a C ₁₂ -C ₃₀ -alkyl group.

R ¹ is, for example, a linear or branched alkane such as hexane, heptane, octane, 2-ethylhexane, nonane, decane, undecane, dodecane, tridecane, isotridecane, tetradecane, pentadecane, hexadecane, heptadecane, octadecane, nonadecane, Eicosane, heicosane, docosane, tricosane, isotricosane, tetracosane, pentacosane, hexacosane, heptacosane, octacosane, nonacosan, triacontane, 2-octyldodecane, 2-dodecylhexadecane, 2-tetradecyloctadecane, 2-decyltetradecane, or monomethyl-min Selected from the group of branched isooctadecane.

In one embodiment, R ¹ is C ₆ -C ₄₀ -alkenyl. Suitable C ₆ -C ₄₀ -alkenyl groups may be linear or branched. These are preferably predominantly linear alkenyl groups, such as occur in natural or synthetic fatty acids and fatty alcohols and oxo alcohols, and are mono-, di- or polyunsaturated. These include, for example: n-hexenyl, n-heptenyl, n-octenyl, n-nonenyl, n-decenyl, n-undecenyl, n-dodecenyl, n-tridecenyl, n-tetradecenyl, n-pentadecenyl, n-hexadecenyl, n-heptadecenyl, n-octadecenyl, n-nonadecenyl.

In one embodiment, R ¹ is C ₃ -C ₁₃ -cycloalkyl. Cycloalkyl is preferably cyclopentyl, cyclohexyl, cycloheptyl or cyclooctyl.

In one embodiment, R ¹ is C ₆ -C ₃₀ -aryl. Aryl includes unsubstituted and substituted aryl groups, preferably phenyl, tolyl, xylyl, mesityl, naphthyl, fluorenyl, anthracenyl, phenanthrenyl, naphthacenyl, in particular phenyl, tolyl, xylyl or mesityl.

In one embodiment, R ¹ is C ₇ -C ₄₀ -arylalkyl. Arylalkyl means a group that contains both an alkyl group and an aryl group, which arylalkyl group is linked to the compound having them through either an aryl group or an alkyl group. For example, R ¹ may be an arylalkyl group as described in EP 761780, page 4, lines 53-55.

In a preferred embodiment, R ² in general formula (I) is selected from —CH ₂ —CH ₂ —, CH (CH ₃ ) —CH ₂ — and mixtures thereof, particularly preferably —CH ₂ —CH ₂ —. It is.

  In a preferred embodiment, in general formula (I), n is selected from a range of 2 to 150.

In one embodiment, R ¹ is a branched alkyl group. Preferably, the side chain of such a branched alkyl group is likewise an alkyl group or an alkenyl group, particularly preferably an alkyl group, especially an unbranched alkyl group.

In one embodiment, the side chain of the branched alkyl group R ¹ has a chain length of up to 6, preferably up to 4 carbon atoms.

In one embodiment, the branches are much shorter than the main chain. In one embodiment, each branch of the R ¹ is the maximum, having a chain length equivalent to a half of the chain length of the main chain of R ^1. In one embodiment, the branches are much shorter than the main chain. In one preferred embodiment, the branched R ¹ is an iso- and / or neoalkyl group. In one preferred embodiment, the branched alkyl group R ^{1 used} is an isoalkane group. Particularly preferred are C ₁₃ -alkyl groups, especially iso-C ₁₃ -alkyl groups.

In another embodiment, R ¹ comprises a branched alkyl group whose side chain has a chain length of at least 4, preferably at least 6 carbon atoms.

  In general, b) may be a mixture of different alcohols.

In a preferred embodiment of the invention, at least one alcohol b) is selected from alkoxylated alcohols. Preferred alkoxylated alcohols are ethoxylated alcohols (R ² = —CH ₂ —CH ₂ —), propoxylated alcohols (R ² = —CH (CH ₃ ) —CH ₂ —) and ethoxylated and propoxylated alcohols. is there. In this regard, the ethylene oxide units and the propylene oxide units may be a random distribution or a block distribution.

で示されるアルコール
または、欧州特許第７６１７８０号第４頁に一般式（５）：

で示されるアルコール、
ここで、
-Ｒ^４、Ｒ^５、Ｒ^７およびＲ^８は、互いに独立して、欧州特許第７６１７８０号第４頁４５〜５８行に記載された意味を有し、好ましくは、Ｒ^４、Ｒ^５、Ｒ^７およびＲ^８は、互いに独立して、少なくとも４個の炭素原子を有するアルキル基であり、アルコール中の炭素原子の総数は最大で３０であり、
-Ｒ^６はアルキレン基、例えば-ＣＨ_２-、-ＣＨ_２-ＣＨ_２-、-ＣＨ_２-ＣＨ(ＣＨ_３)-である；
例えば、ここで適当なアルコールとして２-デシル-１-テトラデカノールが挙げられうる。 Suitable alcohols b) are, for example, alkoxylated, preferably ethoxylated, below.
• Linear alcohols derived from natural sources or from the Ziegler construction reaction of ethylene in the presence of an aluminum alkyl catalyst. Examples of suitable linear alcohols are linear C ₆ -C ₃₀ -alcohols, especially C ₁₂ -C ₃₀ -alcohols. Particularly preferred alcohols that may be mentioned are n-dodecanol, n-tetradecanol, n-hexadecanol, n-octadecanol, n-eicosanol, n-docosanol, n-tetracosanol, n-hexacosanol, n-octacosanol, and / or n-tricontanol, and mixtures of the above alcohols, such as NAFOL® grade, such as NAFOL® 22+ (Sasol).
Oxo alcohols such as isoheptanol, isooctanol, isononanol, isodecanol, isoundecanol, isotridecanol (eg Exxal® grade 7, 8, 9, 10, 11, 13);
• Alcohols branched at the 2-position; these are Gerve alcohols known to those skilled in the art obtained by dimerizing primary alcohols by the so-called Gerve reaction. Particularly preferred alcohols which may be mentioned here are Isofol® 12 (Sasol), Rilanit® G16 (BASF SE).
• Alcohols obtained by Friedel-Crafts alkylation with oligomerized olefins and containing aromatic rings as well as saturated hydrocarbon groups. Particularly preferred alcohols that may be mentioned here are i-octylphenol and i-nonylphenol.
-European Patent No. 761780, page 4, general formula (4):

Or an alcohol represented by the general formula (5) on page 4 of European Patent No. 761780:

Alcohol, indicated by
here,
-R ⁴ , R ⁵ , R ⁷ and R ⁸ have, independently of one another, the meanings described in European Patent No. 761780, page 4, lines 45-58, preferably R ⁴ , R ⁵ , R ⁷ and R ⁸ are, independently of one another, an alkyl group having at least 4 carbon atoms, the total number of carbon atoms in the alcohol being at most 30,
-R ⁶ represents an alkylene group, for example _{-CH 2 -, - CH 2 -CH} 2 -, - CH 2 -CH (CH 3) - is;
For example, 2-decyl-1-tetradecanol may be mentioned here as a suitable alcohol.

In one embodiment, the at least one alcohol b) is a mixture of ethoxylated linear C ₁₆ -C ₁₈ -fatty alcohols.

In one embodiment, at least one alcohol b) has the structural formula RO (CH ₂ CH ₂ O) _x H, wherein R is a linear C ₁₆ -C ₁₈ -alkyl group and x is 3, Selected from 5, 7, 8, 11, 13, 18, 25 or 80, and preferably x = 11]. Such ethoxylated, linear fatty alcohols are commercially available, for example as Lutensol® AT11 (BASF SE).

In one embodiment, at least one alcohol b) is represented by the structural formula RO (CH ₂ CH ₂ O) _x H, wherein R is a linear C ₈ -C ₃₀ -alkyl group, preferably linear C _{It is a 16} -C ₁₈ -alkyl group, and x is 2 to 30].

In one embodiment, particularly when compound d) is not polymerized, at least one alcohol b) is represented by the structural formula RO (CH ₂ CH ₂ O) _x H, where R is linear C ₈ -C _30. An alkyl group, preferably a linear C ₁₆ -C ₁₈ -alkyl group, and x is 30 to 150].

In one embodiment, b) comprises C ₁₂ -C ₃₀ -alcohol ethoxylated with 3 to 100 moles of ethylene oxide per mole.

  In one embodiment of the invention, b) is selected from a mixture of ethoxylated linear and ethoxylated branched long chain alcohols, in particular selected from the aforementioned types of mixtures.

In a further embodiment, b) is selected from ethoxylated iso-C ₁₃ -oxo alcohols and mixtures thereof.

In one embodiment, the at least one alcohol b) has the structural formula RO (CH ₂ CH ₂ O) _x H, wherein R is a C ₁₃ -alkyl group, preferably an iso-C ₁₃ -alkyl group, Wherein x = 3, 5, 6, 6.5, 7, 8, 10, 12, 15 or 20, preferably x = 10 is used]. It is. Such ethoxylated, alkyl-branched alcohols are commercially available, for example as Lutensol® TO10 (BASF SE).

In a further embodiment, b) is selected from a mixture comprising ethoxylated C ₁₆ -C ₁₈ -fatty alcohol and ethoxylated iso-C ₁₃ -oxo alcohol.

  In a further embodiment, b) is selected from those of the ethoxylated form of the above alcohol represented by general formula (4) or (5) on page 4 of European Patent No. 761780.

c) Dendritic polyether polyol The polymer of the present invention comprises at least one dendritic polyether polyol c) in a polymerized form.

  Within the scope of the present invention, the term “dendritic” polyether polyol is very broad and includes polyether polyols characterized by branched structure and high functionality. In the context of the present invention, “dendritic polymers” include dendrimeric polyether polyols, hyperbranched polyether polyols and structures derived therefrom.

  A “dendrimer” is a molecularly uniform polymer with a very symmetric structure. Dendrimers are structurally derived from star polymers, where in each case the individual chains are further branched in a star-like manner. Dendrimers are formed starting from small molecules in a way that repeats the reaction sequence continuously, during which always higher branches occur, in each case the starting point for further branches as well. A functional group is located. Thus, with each reaction step, the number of monomer end groups increases, ultimately resulting in a spherical tree structure. A characteristic property of dendrimers is the number of reaction steps, commonly referred to as “generations”, to perform dendrimer construction. Dendrimers usually have a very narrow molecular weight distribution for uniform construction.

  Preferred dendritic polyether polyols c) for the present invention are both molecularly and structurally heterogeneous hyperbranched polyether polyols, having different lengths and different branches and side chains with different molar mass distributions. .

  See also PJ Flory, J. Am. Chem. Soc. 1952, 74, 2718 and H. Frey et al., Chem. Eur. J. 2000, 6, No. 14, 2499 for the definition of hyperbranched polymers. .

In particular, so-called AB _x monomers are suitable for the synthesis of hyperbranched polymers. They have two different functional groups A and B that can react together to form a bond. Here, only one functional group A exists per molecule, and two or more functional groups B exist. The reaction of the AB _x monomers with each other in principle produces an uncrosslinked polymer with a regular arrangement of branch points. This polymer has substantially exclusively B groups at the chain ends. Further details can be found, for example, in “Journal of Molecular Science, Rev. Macromol. Chem. Phys.”, C37 (3), pp. 555-579 (1997).

  In the context of the present invention, the dendritic polyether polyol c) has an average of at least 3, preferably at least 4 and more preferably at the terminal or side positions per molecule in addition to the ether groups forming the polymer backbone. Polyether polyols having at least 5, especially at least 6 OH groups. The dendritic polyetherols c) according to the invention have, on average, no more than 500, preferably no more than 250, more preferably no more than 100, in particular no more than 50 terminal or side functional OH groups per molecule.

  Preferably, the dendritic polyether polyol c) has an average of at least 3, particularly preferably at least 4, in particular at least 5, most preferably at least 6, divalent, trivalent or more polyhydric alcohols. The condensation product of

  Preferably, the dendritic polyether polyols c) on average are condensations of at least 3, particularly preferably at least 4, specifically at least 5, in particular at least 6, trivalent or higher polyhydric alcohols. Product.

  In the context of the present invention, the preferred dendritic polyether polyol c) is a hyperbranched polyether polyol. Dendritic polyether polyols are preferably uncrosslinked polymer molecules having hydroxyl groups and ether groups, which are structurally and molecularly heterogeneous (hyperbranched polyether polyols) or structurally and molecularly Uniform (dendrimeric polyether polyol).

  Hyperbranched polyether polyols can be built into dendrimers in a similar manner starting from the central molecule, but have a branched, heterogeneous chain length. On the other hand, they may have a linear region with functional side groups.

  In the context of the present invention, “hyperbranch” is the degree of branching (see H. Frey et al., Acta Polym. 1997, 48, 30 for a definition of the degree of branching), ie the average of dendritic bonds per molecule. 10 to 99.9%, preferably 20 to 10 obtained by dividing the average number of the number + terminal group by the sum of the average number of dendritic, linear, and terminal bonds per molecule. It is understood as meaning 99%, particularly preferably 20-95%.

  The hyperbranched polyether polyols c) used according to the invention preferably have a degree of branching of 10 to 99.9%, preferably 20 to 99%, particularly preferably 20 to 95%.

  In the context of the present invention, “dendrimer” means a polymer molecule having a degree of branching greater than 99.9 and up to 100%.

  The preparation of dendritic polyether polyols starting from glycerol is known.

  US Pat. No. 3,932,532 and German Offenlegungsschrift 10307172 describe the production of hyperbranched polyether polyols from glycerol with an alkali catalyst.

German Offenlegungsschrift 10307172 describes the polycondensation of glycerol in the presence of acidic catalysts such as HCl, H ₂ SO ₄ , sulfonic acid or H ₃ PO ₄ .

  WO 2004/074346 describes the alkaline polycondensation of glycerol and the subsequent reaction of the resulting condensation product with fatty alcohols under acidic conditions. In this way, polyglycerol modified with fatty alcohol is obtained.

  Reference is hereby made to the above disclosure.

  Suitable dendritic polyether polyols c) are, according to the invention, dendritic polyglycerols, ie hyperbranched polyglycerols and polyglycerol dendrimers.

  Suitable hyperbranched polyglycerols are, for example, polyglycerol ethers based on glycidol, as described in DE 19947631 and DE 10211664. The preparation is carried out by a ring opening reaction of glycidol, optionally in the presence of a multifunctional starting material. Reference is made to this disclosure.

  Polyglycerol dendrimers are described, for example, by Haag et al. In J. Am. Chem. Soc. 2000, 122, 2954-2955, which is hereby incorporated by reference.

  As dendritic polyether polyols c), according to the invention, the polyether polyols described in WO 00/56802 are also suitable, the references of which are hereby described. The dendritic polyether polyols c) described in this document are obtained by ring-opening polymerization of 1-ethyl-1-hydroxymethyloxetane using a specific catalyst. The resulting polymer backbone consists of trimethylolpropane units.

  Also suitable as dendritic polyether polyols c), according to the present invention, are those described by Nishikubo et al. In Polymer Journal 2004, 36 (5) 413, which is hereby incorporated by reference. . The dendritic polyether polyols c) described in this document are obtained by ring-opening polymerization of 3,3-bis (hydroxymethyl) oxetane.

  As dendritic polyether polyols c), according to the invention, 1-ethyl-1-, as described by Chen et al., J. Poly. Sci. Part A: Polym. Chem. 2002, 40, 1991. Polyether polyols obtained by joint-opening polymerization of hydroxymethyl oxetane and 3,3-bis (hydroxymethyl) oxetane are also suitable and reference is hereby made.

  Suitable dendritic hyperbranched polyether polyols are also described, for example, in WO 2009/101141.

  Processes for the production of dendritic polyetherols are described in that document, where at least one trivalent or more polyhydric alcohol and optionally further divalent and / or monovalent alcohols and / or denaturing reagents. Is reacted with an acidic catalyst.

  Trivalent and higher polyhydric alcohols that can be used are, for example, trimethylolmethane, trimethylolethane, trimethylolpropane (TMP), 1,2,4-butanetriol, trishydroxymethyl isocyanurate, trishydroxyethyl isocyanurate. Triols such as (THEIC). Tetrols such as bis-trimethylolpropane (di-TMP) or pentaerythritol may be used as well. In addition, more multivalent polyols such as bis-pentaerythritol (di-penta) or inositol can be used. Furthermore, it is also possible to use alkoxylated products of the above alcohols and glycerol, preferably having 1-40 alkylene oxide units per molecule. As trihydric and higher polyhydric alcohols, aliphatic alcohols, in particular aliphatic alcohols having a primary hydroxyl group, such as trimethylolmethane, trimethylolethane, trimethylolpropane, di-TMP, pentaerythritol, di-penta and It is particularly preferred to use alkoxylates thereof having 1 to 30 ethylene oxide units per molecule and glycerol ethoxylates having 1 to 30 ethylene oxide units per molecule. It is highly preferred to use trimethylolpropane, pentaerythritol and their ethoxylates having an average of 1-20 ethylene oxide units per molecule and glycerol ethoxylates having 1-20 ethylene oxide units per molecule. The specified alcohols may be used in the mixture.

  Trivalent and higher polyhydric alcohols can also be used in a mixture with dihydric alcohols. Examples of suitable compounds having two OH groups include: ethylene glycol, diethylene glycol, triethylene glycol, 1,2- and 1,3-propanediol, dipropylene glycol, tripropylene glycol, neopentyl glycol 1,2-, 1,3- and 1,4-butanediol, 1,2-, 1,3- and 1,5-pentanediol, hexanediol, dodecanediol, cyclopentanediol, cyclohexanediol, cyclohexanedi Bifunctional poly based on methanol, bis (4-hydroxycyclohexyl) methane, bis (4-hydroxycyclohexyl) ethane, 2,2-bis (4-hydroxycyclohexyl) propane, ethylene oxide, propylene oxide, butylene oxide or mixtures thereof Ether polyol, also Polytetrahydrofuran. Of course, dihydric alcohols may be used in the mixture.

  The diol helps to fine tune the properties of the polyether polyol. If a dihydric alcohol is used, the ratio of dihydric alcohol: trivalent and higher polyhydric alcohol is determined by one skilled in the art depending on the desired properties of the polyether. In principle, the amount of dihydric alcohol is from 0 to 99 mol%, preferably from 0 to 80, particularly preferably from 0 to 75 mol%, very particularly preferably from 0 to 50 mol%, based on the total amount of all alcohols. In this regard, trivalent and more polyhydric alcohols and diols can be added alternately during the course of the reaction, resulting in a block copolyether, such as a diol-terminated polyether.

  With regard to the building blocks for the preferred dendritic polyether polyols c), reference may be made to the disclosure of WO 2009/101141, page 4, line 27 to page 5, line 42, the reference of which was described throughout. Shall.

  For the acid catalyzed synthesis of these preferred dendritic polyether polyols c), reference may be made to the disclosure of WO 2009/101141, page 6, line 1 to page 7, line 8; Shall be described.

  For further reaction conditions for the synthesis of these preferred dendritic polyether polyols c), reference may be made to the disclosure of WO 2009/101141, page 7, line 10 to page 8, line 11; Shall be described.

  In a preferred embodiment of the invention, the dendritic polyether polyol c) is an acid of at least one trivalent or higher polyhydric alcohol and optionally further divalent and / or monohydric alcohol and / or denaturing reagents. Obtained by condensation using a catalyst.

  In a preferred embodiment of the invention, the at least one dendritic polyether polyol c) is on average a condensation product of at least three divalent, trivalent or higher polyhydric alcohols.

  Preferred dendritic polyether polyols c) are also obtainable by acid-catalyzed polycondensation of trimethyolpropane.

  Preferred dendritic polyether polyols c) are obtained by acid-catalyzed polycondensation of trimethylolpropane, wherein at least some OH groups of trimethylolpropane are alkoxylated.

  Preferred dendritic polyether polyols c) can also be obtained by acid-catalyzed polycondensation of pentaerythritol.

  Preferred dendritic polyether polyols c) are obtained by acid-catalyzed polycondensation of pentaerythritol, wherein at least some OH groups of pentaerythritol are alkoxylated.

  Preferred dendritic polyether polyols c) can also be obtained by acid-catalyzed polycondensation of trimethylolpropane and triethylene glycol.

  Preferred dendritic polyether polyols c) are also obtained by acid-catalyzed polycondensation of trimethylolpropane and pentaerythritol.

  Preferred dendritic polyether polyols c) are also obtained by acid-catalyzed polycondensation of triethylene glycol and pentaerythritol.

Preferred dendritic polyether polyols c) have a number average molecular weight M _n of at least 300 g / mol, preferably at least 400 g / mol, more preferably at least 500 g / mol.

Modified dendritic polyether polyol c)
In addition to hydroxyl groups, dendritic polyether polyols c) containing further functional groups, preferably obtained by modifying at least some of the hydroxyl groups, are also suitable dendritic polyether polyols c).

  Such further functional groups include mercapto groups, primary, secondary or tertiary amino groups, ester groups, carboxylic acid groups or derivatives thereof, sulfonic acid groups or derivatives thereof, phosphonic acid groups or derivatives thereof, silanes Groups, siloxane groups, aryl groups or short or long chain alkyl groups.

  Denaturing reagents are used for denaturing. A denaturing reagent is a compound having at least one such additional functional group and a reactive group for at least one alcohol.

  The reactive group for the alcohol is, for example, an isocyanate group, an acid group, an acid derivative or an epoxy group.

  Compound c) may be modified prior to polymerization by reacting at least some of its OH groups. This can be done either by preparing c) in the presence of a denaturing reagent or by subsequently modifying compound c) after its preparation. Both options are described in WO 2009/101141, page 8, line 13 to page 9, line 42, which is hereby incorporated by reference.

  The denaturing reagent may be added before or during the production of the polyether polyol c) starting from, for example, trivalent or higher polyhydric alcohols.

  When reacting a trivalent or higher polyhydric alcohol or alcohol mixture in a single step in the presence of a denaturing reagent, a polyether polyol having functional groups different from the randomly distributed hydroxy groups is obtained.

  Such functionalization can be performed, for example, by mercapto groups, primary, secondary or tertiary amino groups, ester groups, carboxylic acid groups or derivatives thereof, sulfonic acid groups or derivatives thereof, phosphonic acid groups or derivatives thereof, silanes This can be achieved by adding a denaturing reagent having a group, a siloxane group, an aryl group or a short or long chain alkyl group.

  In order to denature with a mercapto group, for example, mercaptoethanol can be used as a denaturing reagent.

  Tertiary amino groups introduce, for example, alcohols containing amino groups such as triethanolamine, tripropanolamine, triisopropanolamine, N-methyldiethanolamine, N-methyldipropanolamine or N, N-dimethylethanolamine By doing so, it can be manufactured.

  By adding a dicarboxylic acid, a tricarboxylic acid, a dicarboxylic acid ester such as adipic acid, dimethyl terephthalate or a tricarboxylic acid ester, an ester group can be generated. Furthermore, the ester group can be obtained by reacting an OH group with a lactone (particularly caprolactone). As a result of the reaction with the long-chain alkanol or alkanediol, it is possible to introduce long-chain alkyl groups.

  Reaction with alkyl or aryl isocyanates, alkyl or aryl diisocyanates or alkyl or aryl oligoisocyanates yields the corresponding polyethers with urethane groups.

  The functionalized dendritic polyether polyol c) can then be reacted, for example, in an additional processing step by reacting the dendritic polyether polyol with a denaturing reagent reactive to the OH groups of the dendritic polyether polyol. Obtained by.

  The dendritic polyether polyol c) may be modified, for example, by adding a modifying reagent containing an acid, acid halide or isocyanate group.

  The dendritic polyether polyol c) containing acid groups can be obtained, for example, by reacting at least a part of OH groups with a compound containing anhydride groups.

  Dendritic polyether polyols c) containing ester groups are obtained, for example, by reacting at least some OH groups with caprolactone. The ester chain length can be controlled by the amount of caprolactone used.

  The dendritic polyetherol c) having a polyalkylene oxide chain is obtained by reacting the dendritic polyetherol c) with an alkylene oxide such as ethylene oxide, propylene oxide, butylene oxide or mixtures thereof. The present invention provides a polymer of the present invention wherein the dendritic polyether polyol c) comprises a polyalkylene oxide chain.

  The novel polyurethane thickeners based on dendritic polyether polyols preferably have a large number of hydrophobic end groups, for example ethoxylated fatty groups, and thus significantly higher thickening compared to known polyurethane thickeners. Have power.

d) polyols different from b) and c) The polymers according to the invention optionally differ from b) and c) in at least one compound d) having a molecular weight of at least 200 g / mol, preferably at least 1500 g / mol. In the form of polymerization introduction.

  Compound d) contains at least two OH groups per molecule and at least two groups selected from ether groups and ester groups.

  Compound d) is preferably selected from polyetherols, polyesterols and polyetheresterols.

In one aspect of the present invention, the compound d) is, 1500~20000g / mol, preferably having a number average molecular weight _{M n} of 4000~12000g / mol.

  Suitable compounds d) are, for example, polymerization products of ethylene oxide, mixtures or graft polymerization products thereof, and polyethers obtained by condensation of polyhydric alcohols or mixtures thereof, as well as polyhydric alcohols, amides, polyamides and amino acids. Polyether obtained by ethoxylation of alcohol. Examples thereof are, for example, polyethylene glycol, ethylene oxide addition products to trimethylolpropane, EO-PO block copolymers, OH-terminated polyesters, for example of the polyfunctional polycaprolactone type.

  A preferred compound d) is a polyether polyol. This is a polyol containing at least 2 OH groups and at least 2 functional groups —O— (ether groups) per molecule. Since these polyether polyols are usually hydrophilic, they are water-soluble at room temperature (20 ° C.).

Particularly preferred compounds d) contain on average 30 to 450 CH ₂ CH ₂ —O— units (EO units) per molecule. Accordingly, preferred compounds d) are polyols of the general formula HO— (CH ₂ —CH ₂ —O) _n —H, where n can take a value from 30 to 450. These are usually condensation products of ethylene oxide and ethylene glycol or water.

Preferred polyethylene glycols d) have a molecular weight M _n in the range from 1500 to 20000 g / mol, particularly preferably from 1500 to 12000 g / mol, in particular from 4000 to 12000 g / mol.

Suitable compounds d) are ethylene oxide-propylene oxide block copolymers, such as, for example, the general formula HO— (EO) _m — (PO) _n — (EO) _O —H, wherein m and o are independently of each other 10 -100, preferably an integer in the range of 20-80, n is an integer in the range of 5-50, preferably 20-40, where m, n and o are HO- (EO) _m- (PO) _n- (EO) _O —H is selected so as to be water-soluble]].

In one embodiment, the polyetherol d) has a molecular weight _Mn ranging from 1500 g / mol to 15000 g / mol.

In a further embodiment, the polyetherol d) has a molecular weight _Mn ranging from 4000 g / mol to 12000 g / mol.

In a further embodiment, the polyetherol d) has a molecular weight _Mn ranging from 200 g / mol to 1500 g / mol.

In a preferred embodiment, the polyetherol d) has a molecular weight M _n in the range of 6000 g / mol to 12000 g / mol.

In a further preferred embodiment, the polyetherol d) has a molecular weight M _n in the range of 6000 g / mol to 10000 g / mol.

In one embodiment, the polyetherol d) has a molecular weight _Mn of about 10,000 g / mol.

In a further particularly preferred embodiment, the polyetherol d) has a molecular weight M _n of about 6000 g / mol.

In a further particularly preferred embodiment, the polyetherol d) has a molecular weight M _n of about 9000 g / mol.

  In one embodiment of the invention, compound d) is not used in the preparation of the polymers of the invention. In this way a polymer of the invention having a low melt viscosity is obtained, which can be easily handled in pure form. The viscosity increase occurs only after adding water. Thus, an easy-to-handle thickener semi-finished product is first obtained, which has a thickening action only on the addition of water, i.e. for example in use in cosmetic preparations.

e) Further compounds having reactive groups for isocyanates The polymers of the present invention are optionally polymerized, different from a) to d), in the range of 1 to 9 reactive groups for isocyanate groups per molecule. Further compounds e) having

  The compound having a reactive group for an isocyanate group is preferably selected from a compound having a hydroxyl group (eg alcohol), a compound having an amino group (eg amine) and a compound having a hydroxyl group and an amino group (eg amino alcohol). The

  Examples of compounds e) having not more than 8 hydroxyl groups per molecule are described, for example, in EP 1584331, paragraph [0039], which is hereby incorporated by reference.

  Suitable compounds e) having an amino group are, for example, ethylenediamine, diethylenetriamine and propylenediamine.

  Suitable compounds e) having hydroxyl and amino groups are, for example, ethanolamine and diethanolamine.

［式中、
Ｒ^１は、Ｃ_６-Ｃ_４０-アルキル、好ましくはＣ_１２-Ｃ_３０-アルキルから選択され、
Ｒ^２は、-ＣＨ_２-ＣＨ_２-、ＣＨ(ＣＨ_３)-ＣＨ_２-およびそれらの混合物から選択され、好ましくは-ＣＨ_２-ＣＨ_２-であり、
ｎは、３〜１００、好ましくは１０〜２０である］
で示される少なくとも１種のアルコール、
ｃ）少なくとも１種の樹枝状ポリエーテルポリオール、
ｄ）ｂ）およびｃ）と異なり、１５００ｇ／ｍｏｌ〜２００００ｇ／ｍｏｌの範囲の分子量Ｍ_ｎを有し、以下の基：
ｉ）少なくとも２個のＯＨ基、および
ｉｉ）少なくとも２個のエーテル基
を含む少なくとも１種の化合物、好ましくは１５００ｇ／ｍｏｌ〜１２０００ｇ／ｍｏｌの範囲のＭ_ｎを有する少なくとも１種のポリエチレングリコール。 A preferred embodiment of the present invention is a polymer of the present invention comprising the following in polymerized form:
a) at least one polyisocyanate, preferably at least one diisocyanate,
b) General formula I:

[Where:
R ¹ is selected from C ₆ -C ₄₀ -alkyl, preferably C ₁₂ -C ₃₀ -alkyl,
R ² is selected from —CH ₂ —CH ₂ —, CH (CH ₃ ) —CH ₂ — and mixtures thereof, preferably —CH ₂ —CH ₂ —
n is 3 to 100, preferably 10 to 20]
At least one alcohol represented by
c) at least one dendritic polyether polyol,
d) Unlike b) and c), having a molecular weight M _n in the range 1500 g / mol to 20000 g / mol and having the following groups:
at least one OH group, and ii) at least one compound comprising at least two ether groups, preferably at least one polyethylene glycol having a M _n in the range of 1500 g / mol to 12000 g / mol.

［式中、
Ｒ^１は、直鎖状および／または分枝状Ｃ_１２-Ｃ_３０-アルキルから選択され、
Ｒ^２は、-ＣＨ_２-ＣＨ_２-であり、
ｎは、３〜１００である］
で示される少なくとも１種のアルコール、
ｃ）Ｍ_ｎは少なくとも３００ｇ／ｍｏｌであり、１分子あたり少なくとも５個のＯＨ基を含む、少なくとも１種の樹枝状ポリエーテルポリオール、
ｄ）１５００ｇ／ｍｏｌ〜１２０００ｇ／ｍｏｌの範囲のＭ_ｎを有する少なくとも１種のポリエチレングリコール。 A preferred embodiment of the present invention is a polymer of the present invention comprising the following in polymerized form:
a) at least one diisocyanate,
b) General formula I:

[Where:
R ¹ is selected from linear and / or branched C ₁₂ -C ₃₀ -alkyl;
R ² is —CH ₂ —CH ₂ —,
n is 3 to 100]
At least one alcohol represented by
c) at least one dendritic polyether polyol, wherein M _n is at least 300 g / mol and contains at least 5 OH groups per molecule;
d) At least one polyethylene glycol having M _n in the range of 1500 g / mol to 12000 g / mol.

The polymer of the present invention comprises components a), b) and c), preferably in the following proportions (mol: mol).
When the polymer of the present invention contains a compound d) introduced by polymerization:
a: b is 10: 1 to 1: 1.9, preferably 5: 1 to 1: 1.
b: c is 25: 1 to 1: 1, preferably 10: 1 to 1.5: 1
a: d is 10: 1 to 1: 1.9, preferably 5: 1 to 1: 1.
When the polymer of the present invention does not contain d) polymerized:
a: b is 1.5: 1 to 1: 1.9, preferably 1.2: 1 to 1: 1.5,
b: c is 25: 1 to 1: 1, preferably 10: 1 to 1.5: 1.

  Compound e) is preferably 0 to 50 mol%, particularly preferably 0 to 25 mol%, very particularly preferably 0 to 10 mol% of all groups which are reactive towards isocyanate groups in components b) to e) e). Polymerization is introduced in such an amount as to be derived from.

  In one embodiment, e) is polymerized in such an amount that 0-1 mol% of all groups reactive to the isocyanate groups of components b) -e) are derived from e).

  In a further embodiment, compound e) is not polymerized.

Production Method The present invention further provides a method for producing the polymer of the present invention. These methods of the present invention are described below. Each reaction step is equipped with Roman numerals. The process with the higher Roman numerals is performed in time after the process with the lower numerals.

  In order to produce the polymers of the present invention, components a) to e) may be polymerized in the presence of a solvent different from a) to e). Here, the solvent is understood as meaning compounds which are inert to a) to e) and in which the starting compounds a) to e), the resulting intermediates and the polymers of the invention are soluble. By solubility is meant that 1 g, preferably at least 10 g of at least one compound of interest is dissolved in 1 liter of solvent under standard conditions to give a clear solution to the human eye.

  Suitable solvents are, for example, xylene, toluene, acetone, tetrahydrofuran (THF), butyl acetate, N-methylpyrrolidone and N-ethylpyrrolidone.

  In one embodiment of the invention, the polymers of the invention are prepared from compounds a) to e) essentially in the absence of a solvent. Essentially in the absence of solvent, the polymerization is carried out in the presence of a solvent different from a) to e) of less than 10%, preferably less than 5% by weight, relative to the total amount of compounds a) to e). Means to be done.

  For the production of the polymers according to the invention, any conventional catalyst used in polyurethane chemistry is suitable in principle.

  Such suitable catalysts and their amounts, solvents, and types of addition are described, for example, in WO 2009/135856, page 11, line 35 to page 12, line 42, which is hereby incorporated by reference. It shall be described in the specification.

  A preferred catalyst is zinc carboxylate, especially selected from 2-ethyl-zinc hexanoate, zinc n-octanoate, zinc n-decanoate, zinc neodecanoate, zinc ricinoleate and zinc stearate. Zinc neodecanoate is particularly preferably used.

  Alkali metal salts of inorganic acids (alkaline earth metal salts) or carboxylic acid alkali metal salts (alkaline earth metal salts) such as potassium salts of acetic acid, citric acid, lactic acid, oxalic acid are also suitable catalysts.

  According to the invention, it is preferred that all compounds used in the process of the invention are essentially anhydrous. “Essentially anhydrous” means that the water content of all compounds used in the process of the invention is less than 5% by weight, preferably less than 1% by weight, particularly preferably 0, based on the total amount of the individual compounds. It means less than 1% by weight.

  Methods for removing water from a compound prior to contact with a compound containing an NCO group are conventional and known to those skilled in the art.

In one embodiment of the present invention, to produce the polymer of the present invention,
I) d) is introduced as an initial filling,
II) Start adding a)
III) The addition of b) and c) is started almost simultaneously when an NCO value in the range of 99.9 to 0.1% of the initial value, preferably 80 to 5% of the initial value is reached.

In a preferred embodiment of the invention, to produce the polymer of the invention,
I) d) is introduced as an initial filling,
II) Start adding a)
III) When reaching an NCO value in the range of 99.9 to 0.1% of the initial value, preferably 80 to 5% of the initial value, the addition of b) is started,
IV) The addition of c) is started when an NCO value in the range of 95-5% of the initial value, preferably 50-5% of the initial value is reached.

  Step IV) is performed after step III).

In a further aspect of the invention, to produce the polymer of the invention,
I) Introducing component b) as initial filling,
II) Start adding component a)
III) Addition of component c) when an NCO value in the range of 99.9 to 0.1% of initial value, preferably 80 to 5% of initial value, very preferably 50 to 5% of initial value is reached Start.

The present invention provides a process for producing the polymer of the present invention comprising the following steps:
I) introducing b) as initial filling,
II) adding a),
III) starting the addition of c) when the NCO value is in the range of 99.9 to 0.1% of the initial value, preferably 80 to 5%, more preferably 50 to 5%.

  Preferably, the polymer of the invention obtained according to this particular embodiment has less than 5% by weight of polymerized compound d), based on its total weight, more preferably less than 1% by weight, in particular 0% by weight. .

  The NCO value (isocyanate content) was titrated according to DIN 53185.

Polymer-like modification of the polymers of the invention In a preferred embodiment, the dendritic polyether polyol c) contains free OH groups after polymerization. For this reason, the polymers of the present invention have increased solubility in polar solvents (especially alcohol and water) compared to conventional associative thickeners. The free OH groups of the polymerized compound c) also have a positive influence on the structure and visual appearance of formulations containing the polymers of the invention.

  In one embodiment of the invention, a range of 5 to 95 mol%, preferably 25 to 75 mol% of the OH groups originally present in c) is still present in the polymer of the invention after polymerization, i.e. unreacted. is there.

  Accordingly, the present invention also provides a polymer of the present invention wherein a range of 5 to 95% of the OH groups present in c) prior to polymerization is present as OH groups after polymerization.

  A thickening effect sufficient for a particular application can be achieved with the above conversion of the OH groups originally present in only 5 mol% c) (ie still 95 mol% OH groups still present).

  The present invention also provides a polymer of the present invention wherein 75 to 95% of the OH groups present in c) prior to polymerization are present as OH groups after polymerization.

  In another embodiment of the invention, a range of 0-50 mol% of the OH groups originally present in c) is still present in the polymer of the invention.

  The invention further relates to a polymer obtained by reaction of at least some free OH groups of compound c) polymerized into the polymers of the invention with compounds reactive with OH groups.

  The polymerized compound c) can be modified in an additional processing step by reacting the polymer according to the invention with a suitable denaturing reagent capable of reacting with the OH group of c).

  The OH groups remaining in the polymerized compound c) can be modified, for example, by adding a modifying reagent containing an acid, acid halide or isocyanate group. The functionalization of the polymerized compound c) with an acid group can be carried out, for example, by reacting the OH group with a compound containing an anhydride group. The ester group can then be introduced, for example, by reaction with caprolactone. Here, the ester chain length can be controlled by the amount of caprolactone used.

  Furthermore, the polymerized compound c) can also be functionalized by reaction with alkylene oxides such as ethylene oxide, propylene oxide, butylene oxide or mixtures thereof.

  The present invention also provides for the polymerized compound c) with respect to the OH group, which contains in addition to at least one group reactive to the OH group, further groups such as carboxylates, sulfonates, diols or polyols. Provided is a polymer obtained by functionalization with a reactive material.

  The invention also provides for the functionalization of the polymerized compound c) with a substance reactive towards OH groups, which contains sugar molecules in addition to at least one group reactive towards OH groups. The resulting polymer is provided.

  The present invention also provides that the polymerized compound c) comprises, in addition to at least one group reactive to the OH group, a polar polymer chain such as a polyacrylic acid chain or a polyalkylene glycol chain. Provided is a polymer obtained by functionalization with a group reactive material.

  The present invention also provides that the polymerized compound c) is reactive towards OH groups, which comprises, in addition to at least one group reactive towards OH groups, nonpolar polymer chains such as polyisobutene chains. Polymers obtained by functionalizing with materials are provided.

  The present invention also provides for the functionalization of the polymerized compound c) with a substance reactive to OH groups, which contains a silicone chain in addition to at least one group reactive to OH groups. The resulting polymer is provided.

  The present invention also provides that the polymerized compound c) is a substance reactive to OH groups comprising an amphiphilic surfactant chain in addition to at least one group reactive to OH groups. Polymers obtained by functionalization with are provided.

The above polymers can also be obtained by functionalizing the polymerized compound c) in two steps:
I) At least some free OH groups of the polymerized compound c) and polyisocyanates, preferably diisocyanates, particularly preferably asymmetric diisocyanates having two different reactive NCO groups, such as isophorone diisocyanate or toluene 2,4- Reacting with diisocyanate,
II) reacting the remaining NCO groups with a substance reactive with NCO groups, such as a substance containing a hydroxyl group or preferably an amino group.

  Therefore, functional groups such as carboxylates, sulfonates, diols, sugars, polar polymer chains, non-polar polymer chains, surfactant chains, etc. are polymerized into NCO functionalized compounds c) via hydroxyl groups or amino groups. Can be combined.

  The present invention also provides the use to produce an aqueous formulation of the polymer of the present invention. Preference is given here to formulations comprising at least 5% by weight, in particular at least 20% by weight, very particularly preferably at least 30% by weight, most preferably at least 70% by weight of water.

  Preference is given to formulations containing up to 95% by weight, particularly preferably up to 90% by weight, in particular up to 85% by weight of water. Formulations containing water can be, for example, solutions, emulsions, suspensions or dispersions.

  In order to produce the formulations, in addition to the polymers according to the invention, further substances such as customary auxiliary substances (for example dispersants and / or stabilizers), surfactants, preservatives, antifoaming agents, perfumes, wetting agents, UV Filters, pigments, emollients, active ingredients, further thickeners, dyes, softeners, humectants and / or other polymers may be used.

Cosmetic formulations The present invention further provides cosmetic formulations comprising at least one polymer of the invention.

  For use in cosmetic formulations, the polymers of the present invention produced without the use of tin-containing catalysts are preferred.

One advantage of the polymers of the invention is that, when used in cosmetic formulations, the thickening of the polymer does not change substantially in each case, even in the following cases:
1) after addition of a salt or pigment in an amount of at least 1% by weight, preferably at least 2% by weight based on the formulation
2) at a temperature up to about 50 ° C. and 3) when the pH changes in the range 2-13.

  Cosmetic formulations containing the polymers of the present invention have a more finely divided structure as a result of the reduction in particle size compared to formulations containing known thickeners.

  Due to the free OH groups that can be attributed to the polymerized dendritic polyether polyol, the solubility in water is higher.

  Use of the polymer-like polar modified polymer of the present invention results in a preferentially more stable emulsion.

  The present invention relates to polymer-like polar modified polymers of the present invention to enhance compatibility with polar solvents such as low molecular weight monohydric alcohols (eg ethanol) or low molecular weight polyhydric alcohols (eg propylene glycol or glycerol). Provide use.

  The present invention also provides the use of polymers of the present invention modified with polymer-like polarity to increase the solubility of raw materials with limited solubility in water (eg, hydrophilic UV filters).

  The present invention further provides the use of a polymer of the present invention with a polymer-like polarity modification (use of the polymer of the present invention as a humectant) to increase moisture binding in formulations as well as subsequent application to the skin.

  The present invention further provides the use of a polymer-like non-polar modified polymer of the present invention to enhance compatibility with non-polar liquid phases such as cosmetic and silicone oils.

  The present invention also provides the use of a polymer-like non-polar modified polymer of the present invention to enhance the solubility of raw materials with limited solubility in oil (eg, hydrophobic UV filters).

  The present invention further provides the use of polymers of the present invention that have been polymer-analogously modified to improve the dispersibility of the particles in the formulation.

  The present invention further provides a method for improving skin sensation, characterized in that the skin is contacted with a formulation comprising a polymer of the present invention that has been polymer-polarized nonpolar modified.

  The rheological behavior can then be adjusted from case to case by using the amphiphilically modified polymers of the invention.

  The polymers according to the invention can usually be used instead of associative thickeners known from the prior art for cosmetic formulations.

  Cosmetic preparations containing polyurethane-based associative thickeners are described in detail in WO 2009/135857, pages 22-73. The preparation of the present invention is a preparation described in the same document under the condition that the polymer of the present invention is included instead of the polyurethane thickener described in International Publication No. 2009/135857, pages 87 to 114.

  All the formulations described in the publication IPCOM001181520D are also in accordance with the present invention, provided that “Polymer 1” in the above document is replaced by the polymer of the present invention.

  All the formulations described in the publication IPCOM00018182D are also in accordance with the present invention, provided that “Polymer 1” in the above document is replaced by the polymer of the present invention.

  All formulations described in the publication IPCOM000183957D are also in accordance with the present invention, provided that “Polymer 1” in the above document is replaced by the polymer of the present invention.

  The molecular weights of the polymers A.1 to A.7 of the invention and of the polymers of comparative examples A.8 and A.9 were measured in standard: PMMA using GPC in tetrahydrofuran as solvent.

  The molecular weight of the polyether polyol PE.1 was measured by GPC, standard: PMMA, in hexafluoroisopropanol + 0.05% potassium trifluoroacetate as solvent.

  The OH number was measured according to DIN 53240, part 2.

  All reactions were performed under a protective gas atmosphere (under dry nitrogen).

  The degree of functionalization (%) indicates how many mole% of the OH groups originally present in compound c) have reacted during the polymerization.

  All other values in% are by weight unless otherwise specified.

Production of hyperbranched polyether polyol from pentaerythritol and triethylene glycol (PE.1)
The polymerization was carried out in a 4 liter four-necked glass flask equipped with a stirrer, a reflux condenser and a distillation bridge with a vacuum connection. A mixture of 1250.4 g (9.00 mol) of pentaerythritol, 1393.3 g (9.00 mol) of triethylene glycol and 6.8 g of trifluoromethanesulfonic acid is evacuated and 200 ° C. using an oil bath at a pressure of 200 mbar. Until slowly heated. After reaching the reaction temperature, the reaction mixture was stirred for 4 hours. The reaction mixture was then left to cool in vacuo. For neutralization, 8.0 g (5 mol) of ethanolic KOH was added to the reaction solution and the mixture was stirred for 2 hours.

The product was then stripped for 4 hours under a pressure higher than atmospheric pressure below 130 ° C. and 100 mbar. Polyether polyol PE.1 (M _n = 510 g / mol; M _w = 3670 g / mol; OH number 675 mg KOH / (g of polymer)) was finally obtained as a highly viscous light brown colored liquid.

Synthesis Example 1: Production of a polymer of the present invention containing a hyperbranched polyether polyol (OH group functionalization degree 25%) (A.1)
Polyethylene glycol Pluriol® E6000 (BASF SE, molecular weight 6000 g / mol) 120.00 g in a 2 liter polymerization reactor (flat flange glass vessel equipped with a vertical stirrer) under nitrogen 467. Dissolved in 00 g. After heating the solution to about 140 ° C. (internal temperature), 200 g of xylene was distilled off. At that time, the water content of the reaction mixture was still only about 100 ppm. The polymer solution was then cooled to 50 ° C. (internal temperature) and mixed with 89 mg of acetic acid dissolved in 5 ml of xylene to neutralize the amount of potassium acetate in polyethylene glycol measured quantitatively beforehand. Polymerization is initiated by adding 360 mg of zinc neodecanoate (TIB® Kat 616, TIB Chemicals, Mannheim) dissolved in 5 ml of xylene and 6.72 g of hexamethylene diisocyanate dissolved in 10 ml of xylene. The batch was allowed to proceed at an internal temperature of 50 ° C. until an isocyanate content of .40%. Then 16.58 g of Lutensol® AT11 (BASF SE) dissolved in 20 ml of xylene was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was 0.17%. Then 5.85 g of hyperbranched polyether polyol PE.1 dissolved in 20 ml of THF was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was finally 0%. Subsequently, the solvents xylene and THF were largely removed at high temperature (about 60 ° C.) by vacuum distillation (residual content <100 ppm) and the residue was dissolved in 602.4 g of water. Then 7.52 g of the preservative Euxyl® K701 and 80 mg of the stabilizer 4-hydroxy-TEMPO were added to the aqueous solution. After cooling to room temperature (25 ° C.), polymer A.1 (M _n = 14500 g / mol; M _w = 33200 g / mol) was obtained in the form of an aqueous dispersion having a solids content of 20.4%. The viscosity of a 10% strength aqueous solution of branched polyether polyurethane A.1 was 15000 mPa * s (shear rate 100 1 / s) or 7000 mPa * s (shear rate 350 1 / s).

Synthesis Example 2: Production of polymer of the present invention containing hyperbranched polyether polyol (OH group functionalization degree 50%) (A.2)
Polyethylene glycol Pluriol® E6000 (BASF SE, molecular weight 6000 g / mol) 120.00 g in a 2 liter polymerization reactor (flat flange glass vessel equipped with a vertical stirrer) under nitrogen 467. Dissolved in 00 g. After heating the solution to about 140 ° C. (internal temperature), 200 g of xylene was distilled off. The water content of the reaction mixture was still only about 110 ppm. The polymer solution was then cooled to 50 ° C. (internal temperature) and mixed with 107 mg of acetic acid dissolved in 5 ml of xylene to neutralize the amount of potassium acetate in polyethylene glycol measured quantitatively beforehand. The polymerization was initiated by adding 360 mg of zinc neodecanoate (TIB Kat 616, TIB Chemicals, Mannheim) dissolved in 5 ml of xylene and 6.72 g of hexamethylene diisocyanate dissolved in 10 ml of xylene. The batch was allowed to proceed at an internal temperature of 50 ° C. until the isocyanate content was reached. Then 16.58 g of Lutensol® AT11 (BASF SE) dissolved in 20 ml of xylene was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was 0.17%. Then 2.93 g of hyperbranched polyether polyol PE.1 dissolved in 20 ml of THF was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was finally 0%. Subsequently, the solvents xylene and THF were largely removed by vacuum distillation at high temperature (about 60 ° C.) (residual content <100 ppm) and the residue was dissolved in 587.8 g of water. Then 7.35 g of the preservative Euxyl® K701 and 70 mg of the stabilizer 4-hydroxy-TEMPO were added to the aqueous solution. After cooling to room temperature (25 ° C.), polymer A.2 (M _n = 15000 g / mol; M _w = 39500 g / mol) was obtained in the form of an aqueous dispersion having a solids content of 20.3%. The viscosity of a 10% strength aqueous solution of branched polyether polyurethane A.2 was 25000 mPa * s (shear rate 100 1 / s) and 12000 mPa * s (shear rate 350 1 / s).

Synthesis Example 3: Production of polymer of the present invention containing hyperbranched polyether polyol (OH group functionalization degree 100%) (A.3)
Polyethylene glycol Pluriol® E6000 (BASF SE, molecular weight 6000 g / mol) 120.00 g in a 2 liter polymerization reactor (flat flange glass vessel equipped with a vertical stirrer) under nitrogen 467. Dissolved in 00 g. After heating the solution to about 140 ° C. (internal temperature), 200 g of xylene was distilled off. At that time, the water content of the reaction mixture was still only about 100 ppm. The polymer solution was then cooled to 50 ° C. (internal temperature) and mixed with 89 mg of acetic acid dissolved in 5 ml of xylene to neutralize the amount of potassium acetate in polyethylene glycol measured quantitatively beforehand. Polymerization was initiated by adding 360 mg zinc neodecanoate (TIB® Kat 616, TIB Chemicals, Mannheim) dissolved in 5 ml xylene and 6.72 g hexamethylene diisocyanate dissolved in 10 ml xylene, The batch was allowed to proceed at an internal temperature of 50 ° C. until an isocyanate content of 0.40%. Then 16.58 g of Lutensol® AT11 (BASF SE) dissolved in 20 ml of xylene was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was 0.16%. Then 1.46 g of hyperbranched polyether polyol PE.1 dissolved in 20 ml of THF was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was finally 0%. Subsequently, the solvents xylene and THF were largely removed at high temperature (about 60 ° C.) by vacuum distillation (residual content <100 ppm) and the residue was dissolved in 580.5 g of water. 7.26 g of preservative Euxyl® K701 and 70 mg of stabilizer 4-hydroxy-TEMPO were then added to the aqueous solution. After cooling to room temperature (25 ° C.), polymer A.3 (M _n = 17 100 g / mol; M _w = 42 300 g / mol) was obtained in the form of an aqueous dispersion having a solids content of 21.2%. . The viscosities of 5% strength aqueous solutions of branched polyether polyurethane A.1 were 9200 mPa * s (shear rate 100 1 / s) and 4600 mPa * s (shear rate 350 1 / s).

Synthesis Example 4: Production of a polymer of the present invention containing a hyperbranched polyether polyol (OH group functionalization degree 50%) (A.4)
Polyethylene glycol Pluriol® E6000 (BASF SE, molecular weight 6000 g / mol) 120.00 g in a 2 liter polymerization reactor (flat flange glass vessel equipped with a vertical stirrer) under nitrogen 467. Dissolved in 00 g. After heating the solution to about 140 ° C. (internal temperature), 200 g of xylene was distilled off. At that time, the water content of the reaction mixture was still only about 100 ppm. The polymer solution was then cooled to 50 ° C. (internal temperature) and mixed with 89 mg of acetic acid dissolved in 5 ml of xylene to neutralize the amount of potassium acetate in polyethylene glycol measured quantitatively beforehand. Polymerization was initiated by adding 360 mg of zinc neodecanoate (TIB Kat 616, TIB Chemicals, Mannheim) dissolved in 5 ml of xylene and 8.89 g of isophorone diisocyanate dissolved in 10 ml of xylene to give 0.40% isocyanate. The batch was allowed to proceed at an internal temperature of 50 ° C. until content. Then 16.58 g of Lutensol® AT11 (BASF SE) dissolved in 20 ml of xylene was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was 0.17%. Then 2.93 g of hyperbranched polyether polyol PE.1 dissolved in 20 ml of THF was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was finally 0%. Subsequently, the solvents xylene and THF were largely removed by vacuum distillation at high temperature (about 60 ° C.) (residual content <100 ppm) and the residue was dissolved in 596.5 g of water. 7.45 g of the preservative Euxyl® K701 and 80 mg of the stabilizer 4-hydroxy-TEMPO were then added to the aqueous solution. After cooling to room temperature (25 ° C.), polymer A.4 (M _n = 15100 g / mol; M _w = 41300 g / mol) was obtained in the form of an aqueous dispersion having a solids content of 19.8%. The viscosity of a 5% strength aqueous solution of branched polyether polyurethane A.4 was 8200 mPa * s (shear rate 100 1 / s) and 3500 mPa * s (shear rate 350 1 / s).

Synthesis Example 5: Production of a polymer of the present invention containing a hyperbranched polyether polyol (OH group functionalization degree 50%) (A.5)
Polyethylene glycol Pluriol® E6000 (BASF SE, molecular weight 6000 g / mol) 120.00 g in a 2 liter polymerization reactor (flat flange glass vessel equipped with a vertical stirrer) under nitrogen 467. Dissolved in 00 g. After heating the solution to about 140 ° C. (internal temperature), 200 g of xylene was distilled off. At that time, the water content of the reaction mixture was still only about 100 ppm. The polymer solution was then cooled to 50 ° C. (internal temperature) and mixed with 89 mg of acetic acid dissolved in 5 ml of xylene to neutralize the amount of potassium acetate in polyethylene glycol measured quantitatively beforehand. Polymerization was initiated by adding 360 mg of zinc neodecanoate (TIB Kat 616, TIB Chemicals, Mannheim) dissolved in 5 ml of xylene and 8.89 isophorone diisocyanate dissolved in 10 ml of xylene to give 0.40% isocyanate. The batch was allowed to proceed at an internal temperature of 50 ° C. until content. A mixture of 8.29 g of Lutensol® AT11 (BASF SE) and 7.17 g of Lutensol® TO10 (BASF SE) dissolved in 20 ml of xylene is then added to an isocyanate content of 0.17%. The reaction mixture was further heated at 50 ° C. until. Then 2.93 g of hyperbranched polyether polyol PE.1 dissolved in 20 ml of THF was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was finally 0%. The solvents xylene and THF were then largely removed by vacuum distillation at high temperature (about 60 ° C.) (residual content <100 ppm) and the residue was dissolved in 589.1 g of water. 7.37 g of the preservative Euxyl® K701 and 70 mg of the stabilizer 4-hydroxy-TEMPO were then added to the aqueous solution. After cooling to room temperature (25 ° C.), polymer A.5 (M _n = 14 900 g / mol; M _w = 38 200 g / mol) was obtained in the form of an aqueous dispersion having a solids content of 20.4%. . The viscosity of a 10% strength aqueous solution of branched polyether polyurethane A.5 was 6700 mPa * s (shear rate 100 1 / s) and 4600 mPa * s (shear rate 350 1 / s).

Synthesis Example 6: Production of a polymer of the present invention containing a hyperbranched polyether polyol (OH group functionalization degree 50%) (A.6)
374.00 g of Lutensol® AT25 (BASF SE) was dissolved in 374.00 g of acetone in a 2 liter polymerization reactor (flat flange glass vessel equipped with a vertical stirrer) under nitrogen. The polymer solution was then heated at 50 ° C. (internal temperature) and mixed with 259 mg of acetic acid to neutralize the amount of potassium acetate in Lutensol® previously quantitatively measured. The reaction was started by adding 4 mg of zinc neodecanoate (TIB Kat 616, TIB Chemicals, Mannheim) dissolved in 55.58 g of acetone and 55.58 g of isophorone diisocyanate until an isocyanate content of 1.13% was obtained. The batch was run at an internal temperature of 50 ° C. Next, 20.78 g of hyperbranched polyether polyol PE.1 dissolved in 20.78 g of acetone and 1.35 g of zinc neodecanoate (TIB Kat 616, TIB Chemicals, Mannheim) further dissolved in 10.00 g of acetone. The reaction mixture was further heated at 50 ° C. until the final isocyanate content was 0%. The solvent acetone was largely removed at high temperature (about 60 ° C.) by vacuum distillation (residual content <100 ppm) and the residue was dissolved in 100.0 g of water. Then 22.52 g of the preservative Euxyl® K701 and 230 mg of the stabilizer 4-hydroxy-TEMPO were added to the aqueous solution. After cooling to room temperature (25 ° C.), polymer A.6 (M _n = 3700 g / mol; M _w = 6500 g / mol) was obtained in the form of an aqueous dispersion having a solids content of 31.2%. The viscosity of a 10% strength aqueous solution of branched polyether polyurethane A.6 was 1160 mPa * s (shear rate 100 1 / s) and 930 mPa * s (shear rate 350 1 / s).

Synthesis Example 7: Preparation of a polymer of the invention comprising a hyperbranched polyether polyol (OH group functionalization degree 50%); subsequent functionalization with diethanolamine (A.7)
Polyethylene glycol Pluriol® E6000 (BASF SE, molecular weight 6000 g / mol) 120.00 g in a 2 liter polymerization reactor (flat flange glass vessel equipped with a vertical stirrer) under nitrogen 467. Dissolved in 00 g. After heating the solution to about 140 ° C. (internal temperature), 200 g of xylene was distilled off. At that time, the water content of the reaction mixture was still only about 100 ppm. The polymer solution was then cooled to 50 ° C. (internal temperature) and mixed with 89 mg of acetic acid dissolved in 5 ml of xylene to neutralize the amount of potassium acetate in polyethylene glycol measured quantitatively beforehand. Polymerization is initiated by adding 360 mg of zinc neodecanoate (TIB® Kat 616 TIB Chemicals, Mannheim) dissolved in 5 ml of xylene and 6.72 g of hexamethylene diisocyanate dissolved in 10 ml of xylene. The batch was allowed to proceed at an internal temperature of 50 ° C. until an isocyanate content of 41%. Then 16.58 g of Lutensol® AT11 (BASF SE) dissolved in 20 ml of xylene was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was 0.17%. Then 2.93 g of hyperbranched polyether polyol PE.1 dissolved in 20 ml of THF was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was finally 0%. Subsequently, to the polymer solution thus obtained, 3.91 g of isophorone diisocyanate dissolved in 10 ml of xylene was further added, and in order to convert the OH group of the thickener molecule already generated into an isocyanate group, The batch was advanced until the content was 0.15%. Subsequently, 1.85 g of diethanolamine dissolved in 10 ml of THF was added to stop the reaction. The solvents xylene and THF were then largely removed at high temperature (approximately 60 ° C.) by vacuum distillation (residual content <100 ppm) and the residue was dissolved in 610.9 g of water. Then 7.58 g of the preservative Euxyl® K701 and 80 mg of the stabilizer 4-hydroxy-TEMPO were added to the aqueous solution. After cooling to room temperature (25 ° C.), an aqueous dispersion in which the polymer A.7 (M _n = 13800 g / mol; M _w = 37500 g / mol) post-functionalized with diol groups has a solids content of 20.2% Obtained in the form of The viscosity of a 10% strength aqueous solution of post-functionalized branched polyether polyurethane A.7 was 36000 mPa * s (shear rate 100 1 / s) (viscosity at shear rate 350 1 / s could not be measured). ).

Comparative Example: Production of a PUR-associative thickener (OH group functionalization degree, 100%) containing trimethylolpropane (known structure) (A.8)

Polyethylene glycol Pluriol® E6000 (BASF SE, molecular weight 6000 g / mol) 120.00 g in a 2 liter polymerization reactor (flat flange glass vessel equipped with a vertical stirrer) under nitrogen 467. Dissolved in 00 g. After heating the solution to about 140 ° C. (internal temperature), 200 g of xylene was distilled off. At that time, the water content of the reaction mixture was still only about 120 ppm. The polymer solution was then cooled to 50 ° C. (internal temperature) and mixed with 89 mg of acetic acid dissolved in 5 ml of xylene to neutralize the amount of potassium acetate in polyethylene glycol measured quantitatively beforehand. Polymerization is initiated by adding 360 mg of zinc neodecanoate (TIB® Kat 616, TIB Chemicals, Mannheim) dissolved in 5 ml of xylene and 6.72 g of hexamethylene diisocyanate dissolved in 10 ml of xylene. The batch was allowed to proceed at an internal temperature of 50 ° C. until an isocyanate content of .40%. Then 16.58 g of Lutensol® AT11 (BASF SE) dissolved in 20 ml of xylene was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was 0.18%. Then 0.79 g of 1,1,1-tris (hydroxymethyl) propane (TMP) dissolved in 20 ml of THF is added and the reaction mixture is further heated at 50 ° C. until the isocyanate content is finally 0%. did. The solvents xylene and THF were then largely removed at high temperature (about 60 ° C.) by vacuum distillation (residual content <100 ppm) and the residue was dissolved in 577.1 g of water. Then 7.22 g of the preservative Euxyl® K701 and 70 mg of the stabilizer 4-hydroxy-TEMPO were added to the aqueous solution. After cooling to room temperature (25 ° C.), polymer A.8 (M _n = 16500 g / mol; M _w = 39500 g / mol) was obtained in the form of an aqueous dispersion having a solids content of 20.5%. The viscosity of a 5% strength aqueous solution of branched polyether polyurethane A.8 was 12500 mPa * s (shear rate 100 1 / s) and 7500 mPa * s (shear rate 350 1 / s).

Comparative example: Production of PUR associative thickener containing ethylene glycol (linear structure) (OH group functionalization degree 100%) (A.9)
Polyethylene glycol Pluriol® E6000 (BASF SE, molecular weight 6000 g / mol) 120.00 g in a 2 liter polymerization reactor (flat flange glass vessel equipped with a vertical stirrer) under nitrogen 467. Dissolved in 00 g. After heating the solution to about 140 ° C. (internal temperature), 200 g of xylene was distilled off. At that time, the water content of the reaction mixture was still only about 100 ppm. The polymer solution was then cooled to 50 ° C. (internal temperature) and mixed with 89 mg of acetic acid dissolved in 5 ml of xylene to neutralize the amount of potassium acetate in polyethylene glycol measured quantitatively beforehand. Polymerization is initiated by adding 360 mg of zinc neodecanoate (TIB® Kat 616, TIB Chemicals, Mannheim) dissolved in 5 ml of xylene and 6.72 g of hexamethylene diisocyanate dissolved in 10 ml of xylene. The batch was allowed to proceed at an internal temperature of 50 ° C. until an isocyanate content of .40%. Then 16.58 g of Lutensol® AT11 (BASF SE) dissolved in 20 ml of xylene was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was 0.18%. Then 0.55 g of monoethylene glycol dissolved in 20 ml of THF was added and the reaction mixture was further heated at 50 ° C. until the isocyanate content was finally 0%. The solvents xylene and THF were then largely removed by vacuum distillation at high temperature (about 60 ° C.) (residual content <100 ppm) and the residue was dissolved in 575.9 g of water. Then 7.20 g of preservative Euxyl® K701 and 70 mg of stabilizer 4-hydroxy-TEMPO were added to the aqueous solution. After cooling to room temperature (25 ° C.), polymer A.9 (M _n = 14300 g / mol; M _w = 33500 g / mol) was obtained in the form of an aqueous dispersion having a solids content of 19.9%. The viscosity of a 10% strength aqueous solution of branched polyether polyurethane A.9 was 27000 mPa * s (shear rate 100 1 / s) (viscosity at a shear rate of 350 1 / s could not be measured).

Cosmetic preparations based on Cremophor® A6 / Cremophor® A25 or based on stearates containing polymers A.1 to A.9 according to embodiments of the invention (formulation FA.1.1-FA .1.9 and FA.2.1-FA.2.9)
A cosmetic formulation was prepared by adding aqueous phase B to oil phase A, followed by mixing the resulting O / W emulsion and preservative (phase C). Thus, the formulation FA.1.1-FA.1.9 (Table 1) based on Cremophor® A6 / A25 base and the formulation FA.2.1-FA.2.9 based on stearate base (Table 1) 4) was obtained.

Formulations FA.1.1-FA1.9 (Table 1) and FA.2.1-FA2.9 (Table 4) in Examples A.1-A.9 for the inventive polymers The quantitative value represents the amount of polymer.

  In the case of comparative example FA.1.8, the structure is very bad (not smooth) despite its high viscosity.

  The inventive polymer A.3 with fully reacted OH groups achieves the highest viscosity (30.0 Pa * s), ie the same value as the polymer A.8. However, the corresponding formulation FA.1.8 has a very bad structure, and the structure of formulation FA.1.3 is significantly better due to the polymerized hyperbranched polyether polyol.

  The corresponding linear comparative structure A.9 results in a viscosity of 20.0 Pa * s (FA.1.9) and thus of polymer A.2 (FA.1.2) with 19.2 Pa * s. It is about the same as the viscosity. The obvious advantage of the inventive polymer A.2 over A.9 is that, for the corresponding viscosity, 50% of the originally present OH groups of the polymerized compound c) are still present as OH groups. It consists of the possibility of functionalization and tailoring of the structure.

  In the case of comparative example FA.2.8, the structure is very bad (not smooth) despite its high viscosity.

  Here, the structures A.2, A.3 (according to the invention) and A.8 (not according to the invention) result in a comparable cosmetic formulation viscosity of about 9 Pa * s. The polymer A.2 of the present invention can be subsequently modified as opposed to A.8. The structure of the formulation obtained using polymer A.3 is significantly better than the structure of the formulation obtained using A.8.

Application examples:
Furthermore, although the usual formulation by this invention is described below, this invention is not limited to these Examples.
In addition to the manufacture of the cosmetic formulations described herein, the polymers A.1, A.2, A.3, A.4, A.5, A.6 or A.7 and combinations thereof may be combined with water. The oil phase may be added to the individual emulsion after combination at 60-80 ° C or to the emulsion cooled at about 40 ° C.
The present invention also provides for the subsequent addition of the polyurethanes obtained according to the present invention to cosmetic formulations to establish the desired viscosity.

Percent data is weight percent unless otherwise specified.

Manufacturing:
Separately heat Phase A and Phase B to about 80 ° C. Phase C is stirred into phase B, then phase A is stirred into phase B / C and homogenized briefly.
Add Phase D (if necessary) and cool to about 40 ° C. with stirring, then add Phase E ingredients to the emulsion and cool to room temperature with stirring. Easy to homogenize.

  O / W emulsions containing one or more polymers A.2, A.3, A.4, A.5, A.6 or A.7 instead of O / W emulsions containing polymer A.1 Is also manufactured.

Manufacturing:
Heat Phase A and Phase C separately to about 80 ° C.
Phase B is stirred into phase A and then phase C is placed into phase A / B. Easy to homogenize. Add Phase D and cool to about 40 ° C. with stirring. Add Phase E and cool to about 30 ° C. with stirring. Add Phase F and Phase G to the emulsion and cool to room temperature with stirring. Easy to homogenize.

  Instead of an aqueous dispersion containing polymer A.1, an aqueous dispersion containing one or more polymers A.2, A.3, A.4, A.5, A.6 or A.7 is also produced. Is done.

Manufacturing:
Heat Phase A to 80 ° C. Add Phase B to Phase A, homogenize for 3 minutes, stir into Phase C.
Cellulose is pre-swelled (if necessary) in water, then the remaining ingredients of phase D are added and heated to 80 ° C.
Stir phase D into phases A + B + C and homogenize. Cool the emulsion to about 40 ° C. with stirring and add Phase E and Phase F. Cool to room temperature with stirring and homogenize.

  Solid stabilized emulsion containing one or more polymers A.2, A.3, A.4, A.5, A.6 or A.7 instead of the solid stabilized emulsion containing polymer A.1 Is also manufactured.

Manufacturing:
Separately heat Phase A and Phase B to about 80 ° C.
Stir Phase A into Phase B and homogenize briefly.
Cool to about 40 ° C. with stirring. Subsequently, Phase C ingredients are added to the emulsion and cooled to room temperature with stirring. Easy to homogenize.

  Producing sunscreen creams containing one or more polymers A.2, A.3, A.4, A.5, A.6 or A.7 instead of sunscreen creams containing polymer A.1 Is done.

Manufacturing:
Separately heat Phase A and Phase B to about 80 ° C.
Stir phase A into phase B and homogenize.
Stir Phase C into Phase A + B and homogenize.
Cool to about 40 ° C. with stirring.
Add Phase C and cool to about 30 ° C. with stirring. Add Phase D. Cool with stirring to room temperature and homogenize easily.

  Instead of a silicone emulsion containing polymer A.1, a silicone emulsion containing one or more polymers A.2, A.3, A.4, A.5, A.6 or A.7 is also produced. .

Manufacturing:
Separately heat Phase A and Phase B to about 80 ° C. Optionally adjust the pH of phase B to greater than 3 using NaOH. Stir Phase B into Phase A and homogenize briefly.
Cool to about 40 ° C. with stirring, add Phase D ingredients and then homogenize again.

  Instead of a hydroxycarboxylic acid cream containing the polymer A.1, a hydroxycarboxylic acid cream containing one or more polymers A.2, A.3, A.4, A.5, A.6 or A.7 Is also manufactured.

Manufacturing:
Heat Phase A and Phase B to about 80 ° C.
Phase B is stirred into phase A and homogenized.
Optionally adjust to pH 4-5 using phase C. Cool to about 40 ° C., add Phase D and allow to cool to room temperature with stirring. Easy to homogenize.
Note: Adjust the pH of the emulsion to 4-5.

  Deodorant activity containing one or more polymers A.2, A.3, A.4, A.5, A.6 or A.7 instead of emulsions containing deodorant active ingredients containing polymer A.1 An emulsion containing the ingredients was also produced.

Manufacturing:
Separately heat Phase A and Phase B to about 80 ° C.
Phase B is stirred into phase A with homogenization and briefly homogenized.
Cool to about 40 ° C., add phase C, cool to RT with stirring and homogenize again.
Note: Adjust emulsion pH to> 10.

  Instead of a hair removal cream containing polymer A.1, a hair removal cream containing one or more polymers A.2, A.3, A.4, A.5, A.6 or A.7 is also produced. .

Conditioning polymer as meaning polyquaternium-7, PQ-10, PQ-16, PQ-39, PQ-44, PQ-46, PQ-67, guar hydroxypropyltrimonium chloride, PQ-87 and combinations thereof Understood.

  Instead of a conditioner shampoo containing polymer A.1, a conditioner shampoo containing one or more polymers A.2, A.3, A.4, A.5, A.6 or A.7 is also produced. .

  Conditioning polymer as meaning polyquaternium-7, PQ-10, PQ-16, PQ-39, PQ-44, PQ-46, PQ-67, guar hydroxypropyltrimonium chloride, PQ-87 and combinations thereof Understood.

Manufacturing:
Separately heat Phase A and Phase B to about 80 ° C.
Phase C is stirred into phase B, then phase A is stirred into phase B / C and homogenized briefly.
Cool to about 50 ° C. with stirring, then add Phase D ingredients and cool to about 30 ° C. with stirring. Subsequently add Phase E ingredients and cool to RT with stirring. Easy to homogenize.

  Instead of a hair conditioner containing polymer A.1, a hair conditioner containing one or more polymers A.2, A.3, A.4, A.5, A.6 or A.7 is also produced. .

Claims (14)

a) at least one polyisocyanate;
b) General formula I:

[Where:
R ¹ is selected from C ₆ -C ₄₀ -alkyl, C ₆ -C ₄₀ -alkenyl, C ₃ -C ₁₀ -cycloalkyl, C ₆ -C ₃₀ -aryl, C ₇ -C ₄₀ -arylalkyl,
R ² is selected from C ₂ -C ₁₀ -alkylene, C ₆ -C ₁₀ -arylene, C ₇ -C ₁₀ -arylalkylene;
n is 0 to 200]
At least one alcohol represented by
c) at least one dendritic polyether polyol,
d) Optionally,
i. At least two OH groups, and ii. At least one compound comprising at least two groups selected from ether groups and ester groups and having a molecular weight of at least 300 g / mol, unlike b) and c);
e) A polymer optionally comprising further compounds in the form of polymerization introduction having reactive groups for isocyanate groups ranging from 1 to 9 per molecule.   The polymer according to claim 1, wherein c) is obtained by condensation using an acid catalyst of at least one trivalent or more polyhydric alcohol and optionally further divalent and / or monovalent alcohols and / or modifying reagents. .   3. A polymer according to claim 1 or 2, wherein c) is on average a condensation product of at least three divalent, trivalent or higher polyhydric alcohols. 4. The polymer according to any one of claims 1 to 3, wherein c) has a number average molecular weight _Mn of at least 300 g / mol.   The polymer according to claim 1, wherein c) is polyglycerol or comprises polyglycerol.   The polymer according to claim 1, wherein the polymer is water-soluble or water-dispersible.   The polymer according to any of claims 1 to 6, wherein a range of 5 to 95% of the OH groups present in c) prior to polymerization is present as OH groups after polymerization. b) _{C 12} -C ethoxylated with 3 to 100 moles of ethylene oxide per mole of _{30 -} including alcohol polymer according to claim 1. d) is a polyethylene glycol having a molecular weight _Mn in the range of 1500-12000 g / mol, or comprises a polyethylene glycol having a molecular weight _Mn in the range of 1500-12000 g / mol. A polymer according to the above.   A polymer obtained by reacting at least a part of the free OH groups of the polymer according to claim 1 with a compound reactive with OH groups. I) introducing d) as initial filling,
II) adding a),
III) starting the addition of b) when the NCO value is in the range of 80% to 5% of the initial value, and IV) c) when the NCO value is in the range of 50 to 5% of the initial value. The manufacturing method of the polymer in any one of Claims 1-10 including the step which starts addition of (1). I) introducing b) as initial filling,
II) adding a),
The method for producing a polymer according to any one of claims 1 to 10, comprising a step of starting addition of c) when the III) NCO value is in the range of 80 to 5% of the initial value.   Use of the polymer according to any one of claims 1 to 10 as a thickener for aqueous formulations.   Cosmetic preparation containing at least one polymer according to any one of claims 1 to 10.