EP2046875A1 - Système de stabilisation de mousse - Google Patents

Système de stabilisation de mousse

Info

Publication number
EP2046875A1
EP2046875A1 EP07787237A EP07787237A EP2046875A1 EP 2046875 A1 EP2046875 A1 EP 2046875A1 EP 07787237 A EP07787237 A EP 07787237A EP 07787237 A EP07787237 A EP 07787237A EP 2046875 A1 EP2046875 A1 EP 2046875A1
Authority
EP
European Patent Office
Prior art keywords
composition according
polymer dispersion
fatty acid
carbon atoms
polymer
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Withdrawn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
EP07787237A
Other languages
German (de)
English (en)
Inventor
Wilfried Hübner
Matthias Passmann
Erik Hattemer
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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
Priority claimed from DE200610051527 external-priority patent/DE102006051527A1/de
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP2046875A1 publication Critical patent/EP2046875A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0028—Use of organic additives containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K3/00—Materials not provided for elsewhere
    • C09K3/30—Materials not provided for elsewhere for aerosols

Definitions

  • the present application relates to a composition
  • a composition comprising an aqueous polymer dispersion, an N-acylamino acid derivative and / or an amide and a fatty acid salt of a branched or unbranched, saturated or unsaturated fatty acid having a chain length of at least 10 carbon atoms and foams produced therefrom.
  • foamable systems are known from WO 98/12247 A1 and WO 98/12248 A1.
  • These references describe water-based, foamable polymeric compositions which can be used to replace polyurethane foams.
  • a disadvantage of these compositions is that the resulting foams on the one hand dry poorly, since the water contained in these compositions evaporates only relatively slowly and also lead to relatively soft foams after curing, which is undesirable for a variety of applications in the construction sector.
  • the object of the present invention was to provide a foamable polymeric composition, which on the one hand is less harmful to health than polyurethane foams and on the other hand provides relatively fast-drying and permanently stable foams.
  • R 1 to R 6 each independently of one another can stand for H or a linear or branched alkyl radical having 1 to 20 C atoms, or R 1 and R 2 and 2 of the radicals R 3 to R 6 for H or a linear or branched alkyl radical having 1 to 20 C
  • the other two of the radicals R 3 to R 6 independently of one another are alkylene radicals having 1 to 20 C atoms, which are connected to one another via a polymer backbone, and a fatty acid salt B of a branched or unbranched, saturated or unsaturated fatty acid a chain length of at least 10 carbon atoms, the composition being characterized in that the polymer dispersion comprises at least one polymer having a glass transition temperature of at least +10 0 C contains.
  • the structures A and A ' are not incorporated as free molecules, but as a repeating unit in a polymer backbone.
  • Such copolymers can be by Achieve copolymerization of polymerizable compounds which forms an intermediate after the copolymerization to form the structural unit A or A 'in up to three further synthetic steps, wherein R 1 to R 6 are each independently H or a linear or branched alkyl radical having 1 to 20 C atoms may be or R 1 and R 2 and 2 of the radicals R 3 to R 6 is H or a linear or branched alkyl radical having 1 to 20 carbon atoms and the other two of the radicals R 3 to R 6 alkylene radicals with 1 are up to 20 C-atoms, which are connected by a polymer backbone.
  • Suitable comonomers are in principle all monomers copolymerizable with the abovementioned compound in a polymerization.
  • copolymerizable is meant, in general, that two monomers in a reaction react alternately (alternately), randomly or successively with one another. In the latter case, only one monomer is consumed predominantly, then the other, so that block copolymers are formed.
  • the mass ratio of the comonomers can be chosen largely as desired and indirectly determines the ratio of the different repeat units in the polymer.
  • olefinic hydrocarbons as comonomers.
  • comonomers ethene, propene, 1-butene, 2-butene, methylpropene, 1-propene, 2-propene, 2-methylpropene, 3-methylpropene, 1, 3-butadiene.
  • Suitable comonomers are vinylic monomers: vinyl methyl ether, vinyl ethyl ether, vinyl acetate, vinyl pyrrolidone, vinylacetic acid, crotonic acid, or else isocrotonic acid.
  • monomers are selected from the group consisting of styrene, fumaric acid, cinnamic acid, maleic acid, maleic anhydride, itaconic acid, itaconic anhydride, esters of acrylic or methacrylic acid with a straight-chain or branched alkyl radical having more than eight, preferably nine or ten connected carbon atoms or vinyl esters with a straight-chain or branched alkyl radical having more than eight, preferably nine or ten connected carbon atoms
  • Suitable monovalent counterions M + are the monovalent cations of lithium (Li + ), sodium (Na + ), potassium (K + ), rubidium (Rb + ), cesium (Cs + ) or the ammoinium cation (NH 4 + ).
  • the compounds A or A 'as salts of di-, tri- or higher-valent cations for example the alkaline earth elements Be 2+ , Mg 2+ , Ca 2+ , Sr 2+ , Ba 2+ or else Al 3 + or Sn 2+ .
  • fatty acid salts according to the invention are generally all water-soluble fatty acid salts, especially alkali metal or ammonium salts of decane, undecane, dodecane, tridecane, tetradecane, pentadecane, hexadecane, heptadecane, octadecane, nonoadecane, eicosan and docosanoic in Question.
  • these compositions on the one hand form foams after foaming, which retain their outer shape until they have formed a solid structure by the drying process.
  • these compounds have virtually no softening properties with respect to the polymer
  • a further advantage of the composition according to the invention is the fact that foams produced from these compositions after curing are usually paintable with conventional emulsion paints. This is usually difficult with the polyurethane foams known from the prior art.
  • T 9 glass transition temperature
  • the polymer dispersion contains an acrylate polymer dispersion, a methacrylate polymer dispersion or that of an acrylate or methacrylate copolymer.
  • This is particularly advantageous because very stable foams can be produced with such polymer dispersions with the stabilizer system according to the invention from A and / or A 'and B.
  • such polymer dispersions are relatively harmless to health.
  • the polymer dispersion contains a dodecyl, tetradecyl, hexadecyl, octadecyl, docosyl, isodecyl, isotridecyl, dodecyl or octadecyl acrylate or methacrylate polymer dispersion or copolymer dispersion.
  • the polymer dispersion thus comprises dispersions of one or more aliphatic acrylic acid esters and / or methacrylic acid esters and / or such copolymers.
  • the composition according to the invention contains a styrene polymer dispersion or a styrene copolymer dispersion.
  • a styrene polymer dispersion or a styrene copolymer dispersion is particularly advantageous because these polymer dispersions are available at low cost, furthermore they are harmless to health and, moreover, can be produced in combination with the stabilizer system according to the invention from A and / or A 'and B long-term stable filling foams.
  • such a styrene-containing dispersions interact with a T 9 of 50 0 C or more particularly advantageous effect on the stability of the Gremume.
  • the polymer dispersion particles act as a filler to enhance the cohesion of foams made with such polymer dispersions.
  • Particularly stable foams can be with polymer dispersion mixtures of styrene polymer dispersions or Styrolcopolymerdispersionen, prepared with a T 9 of 50 0 C or more and acrylate polymers, or Methacrylatpolymerdispersionen, with a T 9 of at least 10 0 C, in particular a T 9 of at least 25 0 C.
  • the composition according to the invention contains at least 60% by weight, in particular at least 70% by weight, of polymer dispersions.
  • polymer dispersions contains at least 60% by weight, in particular at least 70% by weight, of polymer dispersions.
  • the polymer content of a composition according to the invention is preferably above 40, in particular above 45 or 50 wt .-% based on the total composition.
  • compositions with a lower polymer content or lower polymer dispersion fraction can also be foamed with the aid of the stabilizer system according to the invention, the risk that, after foaming, the foam begins to collapse during curing increases as the polymer content in the composition decreases. Although this can be compensated to a certain extent by a larger amount of the stabilizer system, but this is less economically interesting.
  • the polymer content of the composition should be as high as possible - the use of polymer dispersions having a high polymer content, for example up to 80 or 90% by weight, makes sense here.
  • the composition according to the invention contains a fatty acid salt of a branched or unbranched, saturated or unsaturated fatty acid having a chain length of 12 to 22 carbon atoms.
  • fatty acid salts of fatty acids having 14 to 20 carbon atoms Preference is given here in particular to sodium, potassium or ammonium salts of the abovementioned fatty acids.
  • fatty acid salts of these chain lengths have good foam-forming properties without at the same time functioning as plasticizers and consequently reducing the hardness of the foams which can be prepared from the composition according to the invention. For this reason, fatty acid salts of stearic acid or palmitic acid are most preferred.
  • this is white or almost white after foaming.
  • the polyurethane foams hitherto known from the prior art are generally yellow. Due to their low UV stability, uncovered aromatic polyurethane foams turn brown within a short time and are therefore visually less appealing overall.
  • the foams according to the invention have a permanent UV resistance even when uncovered.
  • the white or almost white base color of the foam facilitates the coloring with organic or inorganic dyes or pigments.
  • White foams can hardly be produced by coloring polyurethane foams - unless by selecting special but also expensive monomers.
  • the composition according to the invention further comprises film-forming aids, dyes, pH regulators, corrosion inhibitors, fillers, water repellents, fire retardants and / or propellant gas.
  • film-forming aids include butyltriglycol, butyldiglycol acetate, propylene carbonate, tri- and tetraethylene glycol monomethyl ethers. The addition of these film-forming aids improves the filming of the polymer particles during drying. This improves the elasticity and / or the cohesion of the dried foams.
  • Suitable dyes are water-soluble, eg azo, anthraquinone, triphenylmethane, phthalocyanine dyes.
  • the use of dyes enables the production of colored foams or the color adaptation of the foam to the background in the event that the foamed point remains visible after curing.
  • Suitable pH regulators are selected from the group of alkaline compounds such as ammonia or caustic soda, but also buffer systems such as the phosphate buffer (a mixture of disodium hydrogen phosphate and sodium dihydrogen phosphate) are used.
  • buffer systems such as the phosphate buffer (a mixture of disodium hydrogen phosphate and sodium dihydrogen phosphate) are used.
  • the addition of pH regulators increases the storage stability of the compositions according to the invention, especially when they have been filled with propellant in pressure cans.
  • suitable corrosion inhibitors may be added. These are available from many manufacturers. "Raybo 60 No Rust" from Raybo Chemicals Co. is particularly well suited, for example. These corrosion inhibitors prevent a reaction of the composition according to the invention with, for example, a metal can into which it has been filled prevented.
  • compositions of the invention may contain fillers.
  • suitable fillers are e.g. Silica, titania, zinc oxide, siloxanes, calcium carbonate, calcium sulfate and the like.
  • the moisture and water repellent properties of the compositions of the invention can be further enhanced by the addition of hydrophobizing agents. These are usually neutral, slightly cationic or more cationic. By adding a small amount, for example, 1-10 wt .-%, but preferably 1, 2, 3, 4 or 5 wt .-% of the total dispersion, the foams absorb much less moisture or water.
  • fire retardant properties may be desirable to impart fire retardant properties to the compositions of the present invention. This can be done on the one hand by the use of partially or perhalogenated polymers, on the other hand or additionally by addition of antimony oxides, brominated or chlorinated hydrocarbons, aluminum hydroxide, magnesium hydroxide, aromatic fire retardant compounds, ammonium polyphosphates or red phosphorus.
  • Suitable propellants are propane, n-butane, isobutane, dimethyl ether, 1, 1-difluoroethane. 1, 1, 1, 2-tetrafluoroethane and mixtures thereof.
  • all commercially available propellant gases or mixtures can be used in order to fill the composition according to the invention as a foamable product in pressure vessels.
  • this must not react with individual components of the composition according to the invention.
  • the skilled person can determine this in simple experiments.
  • Another object of the present invention is a foam produced by foaming a composition according to the invention with air or a propellant gas.
  • the composition of the invention is first applied in a pressure-resistant container with a propellant or compressed air and then foamed through a nozzle.
  • the foams thus obtained retain their volume almost constant after foaming until they are dried or hardened, and after curing have a high mechanical strength.
  • the foams of the invention are long-term stable.
  • this is meant that the shape or the appearance, but also e.g. the strength, hardness or internal structure of the foams over one
  • Minimum observation period of two weeks and beyond does not change. They can be environmental influences such. Be exposed to moisture, temperature changes or wind.
  • Another object of the present invention is the use of the composition of the invention as a long-term stable Guschaum, especially as a long-term stable one-component Guschaum.
  • the use of the composition of the invention for foaming cavities, especially in the construction sector, for example, to fill cavities between window or door soffits and masonry, is particularly advantageous because the produced from the compositions according to the invention foams quickly dry, lead to solid and long-term stable foams and health largely are harmless.
  • Another object of the present invention is the use of a combination of A and / or A and B as a foam stabilizer system in long-term stable Grein.
  • the use of this foam stabilizer system according to the invention is particularly advantageous because it allows long-term stable, fast-drying filling foams to be prepared on the basis of largely polymer dispersions which are harmless to the health.
  • Another object of the present invention is a pressure vessel for one-component liquid systems, containing the composition according to the invention.
  • a bleed valve which contains a AufFOumdüse.
  • This is particularly advantageous because it provides an application-ready dosage form of the composition according to the invention, which is ready for use, for example, in the form of pressure cans with a tilting valve directly in place.
  • the composition according to the invention is moreover storage-stable for a longer period of time. measurement methods
  • the thermal parameters were determined by DSC (Dynamic Heat Flow Differential Calorimetry) on a Mettler Toledo DSC 821. The initial weight was 20 - 25 mg in open jars. After drying the dispersion, the crucible was sealed. The films thus formed were measured over a temperature range of -100 to +120 0 C at a heating rate of 20 K / min, against an empty, also sealed crucible. The glass transition temperature T 9 was determined from the first heating process.
  • Component 4 Poly (meth) acrylic acid ester (Robond H 6106, Rohm & Haas, T 9 ⁇ 26 0 C).
  • Component 5 polystyrene with a minor amount of butyl acrylate (Robond 6114, Rohm & Haas, T 9 » 110 ° C).
  • Component 6 Methyl vinyl ether-maleic anhydride copolymer (Gantrez AN 119, CAS-RN: 9011-16-9 having a weight-average molecular weight (M w ) of about 200 kg / mol.
  • Component 7 Solution of 30% by weight in acetone of a partially amidated product of the reaction of component 6 with laurylamine.
  • Component 8 C
  • Foam Structure The foam structure was determined visually. Foams with a mean bubble diameter ⁇ 1 mm in diameter are considered very fine-celled.
  • Foam height The foam height was measured by fresh foam, e.g. with a ruler, with the dried foam determined by strength measurement after cutting.
  • Drying time The foam is considered dry if there are no damp spots during cutting.
  • Example 1-6 Compositions with N-acylamino acid derivatives (formula A)
  • component 7 All raw materials with the exception of component 7 are initially charged and homogenized for 10 minutes. Subsequently, with constant stirring, component 7 is added and stirred for a further 5-10 minutes. 95% by weight of the mixture are then introduced into an aerosol can and printed on the valve with about 4 bar of a mixture of volatile hydrocarbons. The proportion of propellant in the can is then 5 wt .-%.

Abstract

L'invention concerne une composition contenant au moins une dispersion polymère aqueuse, un dérivé d'acide N-acylaminé de formule générale (A) et/ou un amide de formule générale (A'), l et m représentant un nombre entier entre 0 et 20 et la somme de l+m étant un nombre entier entre 1 et 20, M+ représentant un contre-ion monovalent choisi dans le groupe constitué des cations de métaux alcalins et du cation ammonium et R1 à R6 pouvant représenter indépendamment les uns des autres H ou un radical alkyle linéaire ou ramifié ayant de 1 à 20 atomes de carbone ou R1 et R2 ainsi que deux des radicaux R3 à R6 pouvant représenter H ou un radical alkyle linéaire ou ramifié ayant de 1 à 20 atomes de carbone, et les deux autres radicaux R3 à R6 étant des radicaux alkylène ayant de 1 à 20 atomes de carbone et étant reliés les uns aux autres par une chaîne polymère, et un sel d'acide gras B d'un acide gras linéaire ou ramifié, saturé ou insaturé ayant une longueur de chaîne supérieure ou égale à 10 atomes de carbone. Selon l'invention, la composition est caractérisée en ce que la dispersion polymère contient au moins un polymère ayant une température de transition vitreuse supérieure ou égale à 25 °C.
EP07787237A 2006-08-03 2007-07-09 Système de stabilisation de mousse Withdrawn EP2046875A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006036638 2006-08-03
DE200610051527 DE102006051527A1 (de) 2006-10-27 2006-10-27 Schaumstabilisatorsystem
PCT/EP2007/056961 WO2008015076A1 (fr) 2006-08-03 2007-07-09 Système de stabilisation de mousse

Publications (1)

Publication Number Publication Date
EP2046875A1 true EP2046875A1 (fr) 2009-04-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07787237A Withdrawn EP2046875A1 (fr) 2006-08-03 2007-07-09 Système de stabilisation de mousse

Country Status (2)

Country Link
EP (1) EP2046875A1 (fr)
WO (1) WO2008015076A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010062807A1 (de) * 2010-12-10 2012-06-14 Henkel Ag & Co. Kgaa N-Acylaminosäuren als Korrosionsschutz

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5356683A (en) * 1993-10-28 1994-10-18 Rohm And Haas Company Expandable coating composition
CA2266350C (fr) * 1996-09-19 2011-03-15 Dap Products Inc. Composes mousseux stables pour le calfeutrage et l'etancheite, et leurs procedes d'utilisation
DE19821774C2 (de) * 1998-05-14 2002-01-10 Wacker Chemie Gmbh Verwendung von Polymerzusammensetzungen zur Herstellung von thermisch expandierbaren Dispersionsschäumen
DE10047717A1 (de) * 2000-09-27 2002-04-18 Basf Ag Hydrophile, offenzellige, elastische Schaumstoffe auf Basis von Melamin/Formaldehyd-Harzen, ihre Herstellung und ihre Verwendung in Hygieneartikeln
WO2003064507A1 (fr) * 2001-12-28 2003-08-07 Lefatex Chemie Gmbh Masse a deformation plastique, materiau composite, leur procede de production et leur utilisation en tant que materiau legerement isolant
FR2862978B1 (fr) * 2003-12-01 2005-12-30 Rhodia Chimie Sa Nouvel agent promoteur d'adherence sur une surface d'isolant thermique et en particulier sur une surface de polystyrene, et son utilisation dans le domaine de la construction et plus particulierement dans les systemes d'isolation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008015076A1 *

Also Published As

Publication number Publication date
WO2008015076A1 (fr) 2008-02-07

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