WO2008074764A1 - Expandierbare styrolpolymerisate und schaumstoffe mit verringerter wasseraufnahme - Google Patents
Expandierbare styrolpolymerisate und schaumstoffe mit verringerter wasseraufnahme Download PDFInfo
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- WO2008074764A1 WO2008074764A1 PCT/EP2007/064035 EP2007064035W WO2008074764A1 WO 2008074764 A1 WO2008074764 A1 WO 2008074764A1 EP 2007064035 W EP2007064035 W EP 2007064035W WO 2008074764 A1 WO2008074764 A1 WO 2008074764A1
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- 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
- C08J9/0066—Use of inorganic compounding ingredients
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- 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
- C08J9/22—After-treatment of expandable particles; Forming foamed products
- C08J9/224—Surface treatment
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
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- 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
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
Definitions
- the present invention relates to an expandable styrene polymer which contains a-thermane particles and is coated with a hydrophobing agent, a process for producing this expandable styrene polymer, foams which can be prepared from the styrene polymer according to the invention, the use of a hydrophobizing agent for coating expandable styrene polymer which contains athermanous particles contains and for lowering the water absorption of a foam produced from the expandable styrene polymer, and the use of the styrene polymer according to the invention for thermal insulation, for the thermal insulation of machinery and household appliances and as packaging material.
- polystyrene foams In many applications of polystyrene foams, there is an effect of water on these foams. This can lead to the penetration of moisture into the interior of the foam, which is disadvantageous in numerous applications. Particularly critical are applications such as perimeter insulation, in addition to a low water absorption and a good thermal insulation capacity of the foams used is important.
- Polystyrene particulate foams have been known for a long time and have proven themselves in many fields. The production of such foams takes place by foaming (prefoaming) of expandable polystyrene particles (EPS particles) impregnated with blowing agents and the subsequent welding of the foam particles thus produced to shaped bodies.
- EPS particles expandable polystyrene particles
- Expandable polystyrene particles and foams made therefrom are already known from the prior art.
- EP 0 915 127 A2 discloses expandable styrene polymers containing the athermanous particles in a homogeneous distribution and a hydrophobing agent as a coating. These expandable styrene polymers can be processed into self-extinguishing foams having a density of ⁇ 35 g / l. The particulate, expandable styrene polymers are coated with from 0.001 to 0.5% by weight of a hydrophobing agent.
- the hydrophobing agent is selected from the group consisting of paraffin waxes having 10 to 30 carbon atoms in the carbon chain, resinous reaction products of N-methylolamine with a Fatty acid derivative, polyfluoroalkyl (meth) acrylates, carboxylates of aluminum, zirconium and hafnium in the form of aqueous solutions and imidazolidones.
- the cited document does not disclose specially formulated hydrophobizing agent mixtures based on glycerol esters, metal stearates and silicates.
- EP 0 981 574 B1 discloses graphite particles containing expandable styrene polymers. These graphite particles are present in an amount of 0.05 to 8 wt .-% with an average particle size of 1 to 50 microns in a homogeneous distribution in the expandable styrene polymer.
- the cited document also discloses that the expandable particles can be coated with the usual and known coating agents, these coating agents being generally selected from metal stearates, glycerol esters and hydrophobic silicates. Special mixtures are not mentioned in this document.
- DE 195 41 725 C1 discloses expandable styrene bead polymers and foams produced therefrom with reduced water absorption capacity. These styrene bead polymers are coated with a hydrophobing agent which consists of glycerol tristearate, a hydrophobic silicate and optionally zinc stearate and glycerol monostearate.
- a hydrophobing agent which consists of glycerol tristearate, a hydrophobic silicate and optionally zinc stearate and glycerol monostearate.
- DE 195 41 725 A1 does not disclose that athermanous particles can be present in the expandable styrene bead polymer.
- Object of the present invention is to provide an expandable styrene polymer, which can be processed into a foam, which in addition to a very low thermal conductivity has a low water absorption capacity.
- This expandable styrene polymer should have a low tendency to stick during prefoaming.
- Another object is to provide a process for the preparation of this expandable styrene polymer and foams which can be prepared from the styrene polymer according to the invention. These foams should be suitable for thermal insulation.
- the object is achieved by a process for the preparation of expandable styrene polymer by coating an expandable styrene polymer which contains athermanous particles, with a hydrophobing agent, wherein the hydrophobing agent has the above-defined composition.
- the object is also achieved by the use of a hydrophobing agent having the above-defined composition for coating expandable, athermanous particle-containing styrene polymers and for lowering the water absorption of a foam prepared from the expandable styrene polymer.
- the object is also achieved by a foam which can be produced from the expandable styrene polymer according to the invention.
- the styrene polymers according to the invention have a hydrophobing agent which contains the four components A to D and, if appropriate, E in a combination according to the invention.
- This combination according to the invention gives the expandable polymer particles a very low tendency to adhere during prefoaming, so that their processability is improved. Furthermore, foams made from the expandable polymer particles take up very little water so that they are particularly suitable for applications in which they come into contact with water.
- the expandable styrene polymers according to the invention are in a preferred embodiment styrene homopolymers or styrene copolymers with up to 20% by weight, based on the weight of the polymer, of at least one further ethylenically unsaturated monomer, in particular alkylstyrenes, for example divinylbenzene or ⁇ -methylstyrene or acrylonitrile.
- Blends of polystyrene with other polymers, in particular with rubber and polyphenylene ether, are possible.
- the styrene polymers may contain the customary and known auxiliaries and additives, for example flame retardants, nucleating agents, UV stabilizers, chain transfer agents, blowing agents, plasticizers and / or antioxidants.
- auxiliaries and additives for example flame retardants, nucleating agents, UV stabilizers, chain transfer agents, blowing agents, plasticizers and / or antioxidants.
- the amount of athermanous particles used depends on their type and effect.
- the expandable styrene polymers preferably contain 0.05 to 8 wt .-%, particularly preferably 0.1 to 6 wt -.% Athermane particles, each based on the styrene polymer.
- Athermanous particles preference is given to using those selected from the group consisting of graphite, carbon black, aluminum and mixtures thereof, preferably having an average particle size in the range from 1 to 50 ⁇ m.
- the preferably used graphite preferably has an average particle size of 1 to 50 .mu.m, in particular from 2.5 to 12 .mu.m, a bulk density of 100 to 500 g / l and a specific surface area of 5 to 20 m 2 / g. It can be used natural graphite or ground synthetic graphite.
- the graphite particles are contained in the styrene polymer preferably in amounts of from 0.05 to 8% by weight, in particular from 0.1 to 6% by weight.
- the expandable styrene polymer contains flame retardants, in particular those based on organic bromine compounds.
- the organic bromine compounds should have a bromine content of ⁇ 70 wt .-%. This amount of flame retardants does not lead to any impairment of the mechanical characteristics of the polystyrene particle foams according to the invention.
- Particularly suitable are aliphatic, cycloaliphatic and aromatic bromine compounds, such as hexabromocyclododecane, Pentabrommonochlorcyclohexan, Pentabromphenylallylether and mixtures thereof.
- the effect of the bromine-containing flame retardants is considerably improved by the addition of CC or O-O-labile organic compounds.
- flame retardant synergists are dicumyl and dicumyl peroxide.
- a preferred combination consists of 0.6 to 5 wt .-% of organic bromine compounds and 0.1 to 1, 0 wt .-% of CC or O-0 labile organic compounds.
- the incorporation of the athermanous particles in the EPS particles can be carried out by different methods.
- the athermanous particles are mixed with a melt of the styrene polymer, preferably in an extruder. The melt is added at the same time the blowing agent.
- Athermanous particles into a melt of propellant-containing styrene polymer, expediently using segregated edge fractions of a bead spectrum of propellant-containing polystyrene beads formed in a suspension polymerization.
- the blowing agent and athermane particles containing polystyrene melt is squeezed and crushed to propellant-containing granules. Since, in particular graphite acts strongly nucleating, should be cooled rapidly after pressing under pressure to avoid foaming. It is therefore advisable to carry out an underwater granulation under pressure.
- blowing agent to the styrene polymers containing athermanous particles in a separate process step.
- the granules are preferably impregnated in aqueous suspension with the blowing agent.
- the athermanous particles can be added directly to the polymer melt. It is also possible to add the particles in the form of a concentrate in the corresponding polymer, preferably polystyrene, to the melt. However, polymer granules, in particular polystyrene granules, and athermanous particles are preferably added together to an extruder, the polymer is melted and mixed with the particles.
- the athermanous particles already in the course of the suspension polymerization. They may in this case be added to the styrene monomer before suspension or may be added to the reaction mixture during the course of the course, preferably during the first half of the polymerization cycle.
- the blowing agent is preferably added in the course of the polymerization, but it may also be added afterwards to the styrene polymer.
- a solution of polystyrene or a corresponding styrene copolymer, in styrene, or the mixture of styrene and the corresponding comonomer (s) is present.
- concentration of the polymer in the monomer is generally 0.5 to 30 wt .-%, preferably 5 to 20 wt .-%, from.
- edge fractions which are screened off as too large or too small beads in the separation of the bead spectrum occurring during the production of expandable polystyrene.
- unusable marginal fractions have diameters greater than 2.0 mm and less than 0.2 mm, respectively.
- Polystyrene recyclate and polystyrene foam recycled material can also be used.
- Another possibility is to use styrene in Prepolymerized substance to a conversion of 0.5 to 70% and the prepolymer is suspended together with the athermanen particles in the aqueous phase and polymerized
- the blowing agent is added in the usual amounts of about 3 to 10 wt .-% based on the weight of the polymer.
- the hydrophobizing agent is present in an amount of from 0.001 to 0.5% by weight, particularly preferably from 0.01 to 0.4% by weight, based in each case on the styrene polymer.
- the hydrophobizing agent used according to the invention generally contains
- the hydrophobizing agent contains
- the hydrophobicizing agent used consists of the abovementioned components A to D in the abovementioned amounts.
- Component A is a compound having Component A:
- Triester of at least one fatty acid with a polyhydric alcohol means that a polyhydric alcohol having at least three hydroxy functionalities is esterified with three of these hydroxy functionalities each with a fatty acid. It is possible according to the invention that all three hydroxy functionalities are esterified with molecules of three different fatty acids, or that two or three hydroxy functionalities are each esterified with one molecule of the same fatty acid. It is preferred according to the invention that all three hydroxy functionalities of the polyhydric alcohol are each esterified with one molecule of the same fatty acid.
- Polyhydric alcohols having at least three hydroxy functionalities are selected from the group consisting of glycerol, trimethylolpropane, pentaerythritol, saccharides, and mixtures thereof. Particularly preferred is glycerin.
- saturated and unsaturated fatty acids known to those skilled in the art having 8 to 28, preferably 12 to 25, carbon atoms. They may be unbranched or branched, as well as aliphatic, cycloaliphatic or aromatic. Aromatic fatty acids are less preferred. Preferably, saturated fatty acids are used.
- saturated fatty acids which are present in the glycerol triester used according to the invention are pelargonic acid (C 8 H 17 COOH), capric acid (C 9 H 19 COOH), undecylic acid (C 11 H 21 COOH), lauric acid (C 11 H 2 SCOOH) , Myristic acid (C 13 H 27 COOH), palmitic acid (C 15 H 31 COOH), margaric acid (C 16 H 33 COOH), stearic acid (C 17 H 35 COOH), arachic acid (C 19 H 39 COOH), behenic acid (C 21 H 43 COOH), lignoceric acid (C 23 H 47 COOH), ricinoleic acid (C 17 H 32 (OH) COOH) and cerotic acid (C 25 H 51 COOH).
- pelargonic acid C 8 H 17 COOH
- capric acid C 9 H 19 COOH
- undecylic acid C 11 H 21 COOH
- lauric acid C 11 H 2 SCOOH
- Myristic acid C 13 H 27
- glycerol tristearate is particularly preferably used as component A.
- Triesters of glycerol can be prepared by methods known to those skilled in the art, for example by acid or base catalyzed reaction of the corresponding amount of fatty acid with glycerol.
- unsaturated fatty acids which are present in the glycerol triester used according to the invention are undecylenic acid (CiOH 19 COOH), palmitoleic acid
- Component B is a compound having Component B:
- a hydroxy functionality of the polyhydric alcohol is esterified with a fatty acid.
- component B the same fatty acids that have been mentioned for component A can be used.
- component B contains saturated fatty acids.
- Stearic acid is particularly preferred as the fatty acid.
- polyhydric alcohols which have at least two hydroxyl functionalities. Of the hydroxy functionalities, one is esterified with the fatty acid, while at least one other is present as free hydroxy functionality.
- Suitable polyhydric alcohols are those mentioned with respect to component A.
- component B particular preference is given to glycerol as a polyhydric alcohol.
- glycerol monostearate is used as component B.
- Monoesters of glycerol can be prepared by methods known to those skilled in the art, for example by acid or base-catalyzed reaction of the corresponding amount of fatty acid with glycerol.
- At least one metal salt of a fatty acid is present in the hydrophobizing agent according to the invention.
- Suitable metals are selected from the group consisting of calcium, magnesium, aluminum, zinc, barium and mixtures thereof.
- a salt of the metal zinc is used.
- a saturated fatty acid is used, more preferably stearic acid is used.
- Zinc stearate is therefore very particularly preferably used as component C.
- Zinc stearate is commercially available or accessible, for example, by reacting stearic acid or corresponding metal stearates with suitable zinc salts.
- At least one hydrophilic or hydrophilic silicate is used in the hydrophobizing agent according to the invention.
- Suitable hydrophilic silicates in addition to the silica gels and precipitated silicas prepared in wet processes, are in particular the pyrogenic silicic acids.
- a hydrophobic silica gel is used.
- Suitable hydrophobic silicates may be e.g. be obtained from hydrophilic silicas by aftertreatment with water repellents. Such silicates are commercially available or accessible by methods known to those skilled in the art.
- an antistatic agent can be used as component E.
- Suitable are e.g. Alkyl sulfonates, alkyl sulfates and phosphates, fatty alcohol ethoxylates and quaternary ammonium compounds.
- the hydrophobizing agent according to the invention contains glycerol tristearate, glycerol monostearate, zinc stearate and at least one silicate in the abovementioned amounts. Therefore, in a very particularly preferred embodiment, the present invention relates to a styrene polymer according to the invention, wherein the water repellent
- the present invention also relates to a process for producing the expandable styrene polymer of the invention by coating an expandable styrene polymer containing athermanous particles with a hydrophobing agent having the above-mentioned composition.
- the coating of the expandable styrene polymer can be done, for example, according to the method disclosed in WO 06/082232 A1.
- expandable styrene polymers by the steps a) generating a melt of the polymer, b) mixing with a blowing agent, c) cooling the mixture, and d) granulating the resulting solid mixture.
- the coating of the styrene polymer is then carried out by water-soluble, emulsifiable or suspendable coating agents in the granulator.
- the EPS granules are preferably with 0.001 to 5 wt .-%, preferably 0.01 to 0.5 wt .-%, particularly preferably 0.01 to 0.4 wt .-%, each based on the solid, with coating agent coated.
- the applied amount of the coating agent can be adjusted for example via the concentration in the water cycle.
- the coating agent is used in the water cycle of the underwater granulator usually in amounts ranging from 0.05 to 20 wt .-%, preferably in the range of 0.1 to 10 wt .-%, based on the solids content in the water.
- the concentration of the coating agent in the circulating water should be kept constant, for example via a constant metering of the coating agent in accordance with the discharge via the coated EPS.
- the aqueous emulsion of the hydrophobizing agent is preferably applied to the EPS particles immediately after working up and drying, for example in the granulation step.
- the hydrophobizing agent is applied in substance to the EPS particles.
- EPS particles are intensively mixed with a corresponding coating agent, for example in a drum or paddle mixer.
- the hydrophobizing agent can also be added in the production of the EPS particles by polymerization of styrene and optionally further comonomers in aqueous suspension.
- the EPS particles After the treatment of the EPS particles with the hydrophobizing agents, the particles are dried. This is usually done with air at room temperature or slightly elevated temperature, which must be so far below the softening temperature in the treatment of unfoamed particles that unintentional foaming and / or escape of the blowing agent can be prevented.
- the EPS particles generally have an average particle size of from 0.1 to 3 mm, in particular from 0.2 to 2.5 mm.
- the EPS particles according to the invention can be processed into foams having densities of from 5 to 80 g / l, preferably from 10 to 70 g / l and in particular from 15 to 60 g / l.
- the present invention also relates to a process for the production of foams by producing expandable styrene polymers, which are coated with the coating composition according to the invention, by the process according to the invention and foaming of these expandable styrene polymers.
- the foaming of the blowing agent containing EPS particles into foams is usually also carried out by the method known in the prior art, by first being prefoamed with steam in open or closed pre-expanders. The pre-expanded beads are then welded in gas-permeable forms by means of steam to form parts or plates.
- the expanded polystyrene particles generally have an average particle size of 1 to 10 mm, in particular from 2 to 8 mm.
- the foams produced from the expandable styrene polymers according to the invention are distinguished by outstanding thermal insulation. Furthermore, foams produced from the EPS particles according to the invention absorb only very little water. A further advantage of the EPS particles according to the invention is that prefoams produced from them have a very low adhesive tendency. As a result, the process step of separating agglomerated particles can be omitted in the production of prefoamed particles, and according to the invention there is no loss of prefoamed particles.
- the present invention also relates to foams which are produced from the expandable styrene polymers according to the invention.
- the present invention also relates to the use of a hydrophobing agent having the above-defined composition for coating expandable, athermanous particle-containing styrene polymers.
- the present invention relates to the use of a hydrophobing agent which has the above-defined composition for lowering the water absorption of a foam produced from the expandable styrene polymer.
- the present invention also relates to the use of the foam according to the invention for thermal insulation, for example of buildings or parts of buildings, the so-called perimeter insulation.
- the foams of the invention can be applied to the outside as well as on the inside of the parts to be insulated.
- the present invention also relates to the use of the foam according to the invention for the thermal insulation of machines and household appliances, such as ovens, refrigerators, freezers, water heaters or insulating cans.
- the present invention also relates to the use of the foam according to the invention as packaging material.
- the foam can be used particulate, so that the object to be packaged lies in a loose bed. It is also possible that from the foam according to the invention a one-piece workpiece is produced, in which the article to be packaged is embedded.
- Example 1 (according to the invention):
- EPS particles with a diameter of 0.5 to 0.8 mm, which contain 3.6% by weight of graphite with a particle size of 5 ⁇ m are intensively mixed with the coating composition according to the invention.
- the total amount of hydrophobing agent with respect to the EPS particles is 0.3 wt .-%.
- the coating composition has the following composition:
- the hydrophobic silicate used is a reaction product of dichlorodimethylsilane and silicon dioxide.
- the coated EPS particles are expanded in a continuous prefoamer. Sieving separates agglomerated, ie bonded, particles. The weight fraction of the bonded particles is 0.1%. After sieving, the obtained foam particles are welded into plate-shaped moldings having a density of 30 g / l. The water absorption after underwater storage in accordance with EN 12087 is tested on moldings cut from them. The water absorption after 28 days is 0.44 vol .-%.
- Example 1 The production, coating, processing and testing are carried out as in Example 1.
- As a coating agent is a mixture of
- the proportion by weight of bonded particles which have to be separated off after pre-foaming is 11.2% by weight.
- the water absorption after 28 days is 0.35% by volume, measured according to EN 12087.
- glycerol monostearate corresponds to 50% by weight, based on the mixture
- the watertightness is measured by the following method: A 100 mm diameter tube is glued to a foam plate 100 mm thick and filled with a water column 100 mm high. After 24 hours, it is checked whether there is a water leak on the underside of the foam board. The lowering of the water level is measured in mm water column. Before the test, the foam board is conditioned for 24 hours in a drying oven at 60 0 C. Then the pipes are glued on using silicone rubber.
- the foam sheet according to Comparative Example 2 shows an insufficient water-tightness of 28 mm.
- the water absorption of the foam board according to DIN 53433 is measured.
- the water absorption is 5.8 vol .-%.
- the test procedure corresponds to Comparative Experiment 2.
- a coating agent is to be applied, in each case based on the EPS,
- glycerol tristearate corresponding to 64% by weight, based on the mixture
- This coating agent contains no glycerol monostearate.
- the resulting foam panels are not waterproof.
- the example according to the invention and the three comparative examples show that only the combination according to the invention of components A to D does not cause EPS particles produced therewith to stick together during pre-foaming, and foams produced therefrom absorb very little water.
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Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2009006104A MX2009006104A (es) | 2006-12-18 | 2007-12-17 | Polimeros de estireno expansibles y espumas con absorcion de agua disminuida. |
AT07857666T ATE517938T1 (de) | 2006-12-18 | 2007-12-17 | Expandierbare styrolpolymerisate und schaumstoffe mit verringerter wasseraufnahme |
EP07857666A EP2121832B1 (de) | 2006-12-18 | 2007-12-17 | Expandierbare styrolpolymerisate und schaumstoffe mit verringerter wasseraufnahme |
PL07857666T PL2121832T3 (pl) | 2006-12-18 | 2007-12-17 | Spienialne polimery styrenowe i tworzywa piankowe o zmniejszonej zdolności wchłaniania wody |
US12/519,969 US20100004348A1 (en) | 2006-12-18 | 2007-12-17 | Expandable styrene polymers and foams with decreased water absorption |
BRPI0721352-2A BRPI0721352A2 (pt) | 2006-12-18 | 2007-12-17 | Polímero de estireno expansível, processo para preparação do mesmo, espuma, processo para produção da mesma, e, usos de um agente de hidrofobização e de uma espuma |
CA002671396A CA2671396A1 (en) | 2006-12-18 | 2007-12-17 | Expandable styrene polymers and foams with decreased water absorption |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06126365.3 | 2006-12-18 | ||
EP06126365 | 2006-12-18 |
Publications (1)
Publication Number | Publication Date |
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WO2008074764A1 true WO2008074764A1 (de) | 2008-06-26 |
Family
ID=39212371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/064035 WO2008074764A1 (de) | 2006-12-18 | 2007-12-17 | Expandierbare styrolpolymerisate und schaumstoffe mit verringerter wasseraufnahme |
Country Status (11)
Country | Link |
---|---|
US (1) | US20100004348A1 (de) |
EP (1) | EP2121832B1 (de) |
KR (1) | KR20090102755A (de) |
AT (1) | ATE517938T1 (de) |
BR (1) | BRPI0721352A2 (de) |
CA (1) | CA2671396A1 (de) |
ES (1) | ES2367667T3 (de) |
MX (1) | MX2009006104A (de) |
MY (1) | MY147385A (de) |
PL (1) | PL2121832T3 (de) |
WO (1) | WO2008074764A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2402389A3 (de) * | 2010-07-02 | 2012-06-13 | Eckart GmbH | Polystyrol-Hartschaum mit beschichteten aluminiumhaltigen Pigmenten, Verfahren zur Herstellung des Polystyrol-Hartschaumes und Verwendung desselben |
DE102011056228A1 (de) * | 2011-12-09 | 2013-06-13 | Eckart Gmbh | Polystyrol-Hartschaum mit Aluminiumpigmenten, Verfahren zur Herstellung des Polystyrol-Hartschaums und Verwendung desselben |
FR3096290A1 (fr) * | 2019-05-20 | 2020-11-27 | Thomas Munch | Procédé pour rendre insensible à l’humidité les granulés de polymère |
Families Citing this family (4)
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FI125519B (fi) * | 2011-08-29 | 2015-11-13 | Bewi Styrochem Oy | Paisutettavat polymeerihelmet ja niiden valmistus |
KR101471165B1 (ko) * | 2012-10-09 | 2014-12-11 | 주식회사 에스에이치에너지화학 | 항균성 발포폴리스티렌 폼 |
CN103497352B (zh) * | 2013-10-12 | 2015-04-29 | 王志刚 | 可发性聚苯乙烯颗粒涂层剂及其制备方法和应用 |
KR102216453B1 (ko) | 2016-07-14 | 2021-02-17 | 누리온 케미칼즈 인터내셔널 비.브이. | 열팽창성 열가소성 마이크로스피어 및 이의 제조 방법 |
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EP0981574B1 (de) | 1997-05-14 | 2000-09-06 | Basf Aktiengesellschaft | Graphitpartikel enthaltende expandierbare styrolpolymerisate |
DE102005005494A1 (de) | 2005-02-04 | 2006-08-10 | Basf Ag | Flammgeschützte, expandierbare Styrolpolymer (EPS)-Granulate mit Flammschutzsynergist in der Beschichtung |
WO2006082232A1 (de) | 2005-02-04 | 2006-08-10 | Basf Aktiengesellschaft | Verfahren zur beschichtung von expandierbaren styrolpolymeren-granulaten |
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2007
- 2007-12-17 MY MYPI20092503A patent/MY147385A/en unknown
- 2007-12-17 WO PCT/EP2007/064035 patent/WO2008074764A1/de active Application Filing
- 2007-12-17 MX MX2009006104A patent/MX2009006104A/es active IP Right Grant
- 2007-12-17 CA CA002671396A patent/CA2671396A1/en not_active Abandoned
- 2007-12-17 BR BRPI0721352-2A patent/BRPI0721352A2/pt not_active IP Right Cessation
- 2007-12-17 PL PL07857666T patent/PL2121832T3/pl unknown
- 2007-12-17 ES ES07857666T patent/ES2367667T3/es active Active
- 2007-12-17 KR KR1020097012522A patent/KR20090102755A/ko not_active Application Discontinuation
- 2007-12-17 AT AT07857666T patent/ATE517938T1/de active
- 2007-12-17 US US12/519,969 patent/US20100004348A1/en not_active Abandoned
- 2007-12-17 EP EP07857666A patent/EP2121832B1/de not_active Not-in-force
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DE19530548A1 (de) * | 1995-08-19 | 1997-02-20 | Basf Ag | Expandierbare Styrol-Perlpolymerisate |
DE19541725C1 (de) | 1995-11-09 | 1997-05-07 | Basf Ag | Expandierbare Styrol-Perlpolymerisate mit verminderter Wasseraufnahmefähigkeit |
EP0981574B1 (de) | 1997-05-14 | 2000-09-06 | Basf Aktiengesellschaft | Graphitpartikel enthaltende expandierbare styrolpolymerisate |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2402389A3 (de) * | 2010-07-02 | 2012-06-13 | Eckart GmbH | Polystyrol-Hartschaum mit beschichteten aluminiumhaltigen Pigmenten, Verfahren zur Herstellung des Polystyrol-Hartschaumes und Verwendung desselben |
DE102011056228A1 (de) * | 2011-12-09 | 2013-06-13 | Eckart Gmbh | Polystyrol-Hartschaum mit Aluminiumpigmenten, Verfahren zur Herstellung des Polystyrol-Hartschaums und Verwendung desselben |
FR3096290A1 (fr) * | 2019-05-20 | 2020-11-27 | Thomas Munch | Procédé pour rendre insensible à l’humidité les granulés de polymère |
Also Published As
Publication number | Publication date |
---|---|
MX2009006104A (es) | 2009-06-17 |
ES2367667T3 (es) | 2011-11-07 |
ATE517938T1 (de) | 2011-08-15 |
MY147385A (en) | 2012-11-30 |
US20100004348A1 (en) | 2010-01-07 |
EP2121832A1 (de) | 2009-11-25 |
EP2121832B1 (de) | 2011-07-27 |
PL2121832T3 (pl) | 2011-12-30 |
BRPI0721352A2 (pt) | 2014-02-25 |
KR20090102755A (ko) | 2009-09-30 |
CA2671396A1 (en) | 2008-06-26 |
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