EP0541541A1 - Materiaux d'etancheite resistant a l'eau avant leur durcissement - Google Patents

Materiaux d'etancheite resistant a l'eau avant leur durcissement

Info

Publication number
EP0541541A1
EP0541541A1 EP90914905A EP90914905A EP0541541A1 EP 0541541 A1 EP0541541 A1 EP 0541541A1 EP 90914905 A EP90914905 A EP 90914905A EP 90914905 A EP90914905 A EP 90914905A EP 0541541 A1 EP0541541 A1 EP 0541541A1
Authority
EP
European Patent Office
Prior art keywords
weight
compounds according
joint
joint sealing
sealing compounds
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Withdrawn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
EP90914905A
Other languages
German (de)
English (en)
Inventor
Helmut Loth
Bernard Dr. Knop
Tore Podola
Klaus Helpenstein
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 DE3934870A external-priority patent/DE3934870C2/de
Priority claimed from DE19904024551 external-priority patent/DE4024551A1/de
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0541541A1 publication Critical patent/EP0541541A1/fr
Withdrawn legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/34—Filling pastes
    • 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
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K3/1006—Materials in mouldable or extrudable form for sealing or packing joints or covers characterised by the chemical nature of one of its constituents
    • C09K3/1015—Polysaccharides or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/08—Cellulose derivatives
    • C08L1/26—Cellulose ethers
    • C08L1/28—Alkyl ethers
    • C08L1/284—Alkyl ethers with hydroxylated hydrocarbon radicals
    • 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
    • C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2003/1034—Materials or components characterised by specific properties
    • C09K2003/1081—Water-proofed materials
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/02—Inorganic compounds
    • C09K2200/0217—Salts
    • C09K2200/023—Sulfur-containing compounds
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/02—Inorganic compounds
    • C09K2200/0239—Oxides, hydroxides, carbonates
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/02—Inorganic compounds
    • C09K2200/0243—Silica-rich compounds, e.g. silicates, cement, glass
    • C09K2200/0247—Silica
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/04—Non-macromolecular organic compounds
    • C09K2200/0405—Hydrocarbons
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/04—Non-macromolecular organic compounds
    • C09K2200/0411—Halogen-containing compounds
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0607—Rubber or rubber derivatives
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09K2200/0617—Polyalkenes
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    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09K2200/0617—Polyalkenes
    • C09K2200/062—Polyethylene
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09K2200/0622—Polyvinylalcohols, polyvinylacetates
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0615—Macromolecular organic compounds, e.g. prepolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C09K2200/0625—Polyacrylic esters or derivatives thereof
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
    • C09K2200/0647—Polyepoxides
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
    • C09K2200/065—Polyurethanes
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/068—Containing also other elements than carbon, oxygen or nitrogen in the polymer main chain
    • C09K2200/0682—Containing sulfur
    • 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
    • C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
    • C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
    • C09K2200/068—Containing also other elements than carbon, oxygen or nitrogen in the polymer main chain
    • C09K2200/0685—Containing silicon

Definitions

  • the invention relates to joint sealants which are resistant to early rain
  • Non-ionic cellulose ethers (II) from the group formed by hydroxyethyl, hydroxyethylimethyl, hydroxypropylmethyl and hydroxypropyl cellulose
  • customary additives such as fillers, pigments, plasticizers, extenders, thickeners, defoamers, dispersing aids, pH regulators, preservatives and preservatives and
  • Joint sealants are known to the person skilled in the art and have proven themselves in practice. The use of joint sealant is problematic in areas where there is a possibility or risk that the joint sealant is exposed to water pollution, for example by spray water or roe, before it hardens. For example, many of the jointing compounds that have also been used outdoors are partially or completely washed out by a heavy downpour that started shortly after they were applied.
  • DE 3814078-A1 discloses the use of non-ionic cellulose ethers in joint sealants or coating compositions based on acrylate dispersions.
  • Non-ionic cellulose ethers are also known as constituents of coating compositions and paints, e.g. those based on aqueous dispersions of organopolysiloxanes as described in DE 1284007 or those based on vinyl acetate / maleic acid dibutyl ester dispersions as described in DE 21 08365.
  • cellulose ethers are also suitable for joint sealants based on the same polymer dispersion and lead to the desired effects.
  • the specialist magazine Resin Review .35,2 describes a roof coating ace that contains a polyacrylate dispersion as a binder and, in addition to fillers and other auxiliary substances, also hydroxyethyl cellulose as a thickener. contains.
  • This coating ace is advertised as particularly wash-resistant. However, this property is attributed to the specific setting behavior of the polyacrylate emulsions specially developed and used for such coating compositions. It was therefore not obvious to a person skilled in the art to use hydroxyethyl cellulose in joint sealants to improve the early rain strength.
  • coating compounds do not meet the requirements placed on joint sealing compounds. These are in particular requirements such as those required by DIN 52456 “Determining the Processability of Sealants” and DIN .52454 “Stability”. In particular when it comes to durability, joint sealing compounds must have the property that they do not run off, or only slightly, from a U-profile filled with this compound, which is placed upright after filling. Coating compounds are generally less viscous because. on the one hand they should be applicable by spraying or rolling and on the other hand they should show a certain course for leveling the mass. Although joint sealants and coating compounds can in principle be produced from the same constituents, it should also be possible to produce a reasonably usable coating ace by diluting a joint sealant, but conclusions cannot necessarily be drawn in the reverse manner.
  • nonionic cellulose ether derivatives such as hydroxyethyl cellulose (HEC), hydroxyethyl methyl cellulose (HEMC) and hydroxy - Propyl-methylcellulose (HPMC) can be used in plastic plasters and emulsion paints, among other things, to improve water retention, open time, wet grip and thickening and setting behavior.
  • HEC hydroxyethyl cellulose
  • HEMC hydroxyethyl methyl cellulose
  • HPMC hydroxy - Propyl-methylcellulose
  • paints such as emulsion paints and plastic mortars represent another area of technology that is not comparable to joint sealants.
  • plastic plasters can possibly be used to decay joints, but generally have no pronounced sealing properties and, in contrast to the joint sealing compounds, can be portioned and processed with a trowel when they are applied.
  • the object of the invention is to provide joint sealants based on polymer dispersions which, in addition to good smoothing behavior, have an early rain resistance of the uncured compositions without other desired properties such as modulus of elasticity, elongation at break and resilience, and resistance to migration and coagulum and Speck freedom can be adversely affected. It was also an object of the invention to provide a method which makes it possible to produce such compositions.
  • the object was achieved by early rain-resistant joint sealants containing aqueous polymer dispersions (I) non-ionic cellulose ethers (II) from the group formed by hydroxyethyl, hydroxyethylimethyl, hydroxypropylmethyl and hydroxypropyl cellulose, and if appropriate conventional additives such as fillers, pigments, plasticizers, extenders Thickeners, defoamers, dispersing aids, pH regulators, preservatives and anti-aging agents as well as at least one organic liquid component from the group of conventional additives and can be prepared by intimately mixing (I) with the other constituents, characterized in that that (II) in the delayed and / or non-retarded form, suspended in the liquid organic component, is added and mixed in.
  • aqueous polymer dispersions I
  • non-ionic cellulose ethers II
  • conventional additives such as fillers, pigments, plasticizers, extenders Thickeners, defoamers, dispersing aids
  • joint sealant The individual components of the joint sealant are known to the person skilled in the art as such, for example from DE 38 14078-Al. Further suitable polymer dispersions for the production of joint sealants are commercially available and / or are known to the person skilled in the art from the patent and specialist literature, for example from E. Flick, Construction and structural adhesives and sealants, Noyes Publications, Park Ridge 1988 or E. Flick, Adhesives and sealant compound formulations, Noyes Publications, Park Ridge 1978. Particularly advantageous joint sealing compounds contain dispersions of polyacrylates and / or acrylate copolymers capable of film formation.
  • joint sealants which are selected from dispersions of polymers or copolymers capable of film formation from those of ethylene / vinyl acetate, butadiene / styrene, vinyl acetate / maleic acid ester, silicone, urethane, vinyl acetate methacrylic acid / chloroprene and Isoprene polymers or copolymers formed group.
  • dispersions of polymers or copolymers capable of film formation from those of ethylene / vinyl acetate, butadiene / styrene, vinyl acetate / maleic acid ester, silicone, urethane, vinyl acetate methacrylic acid / chloroprene and Isoprene polymers or copolymers formed group.
  • Different polymer dispersions can be combined.
  • polysulfide dispersions prove to be particularly suitable in connection with polymers capable of film formation. For the sake of simplicity, the following text speaks only of polymer dispersions.
  • the cellulose ethers suitable according to the invention are slurried in the liquid organic component.
  • Such components are, for example, plasticizers, extenders and / or wetting agents.
  • Retarded and / or non-retarded cellulose ethers can optionally be used.
  • the aqueous dispersions contained in the joint sealants of the invention preferably have solids contents of 40 to 75, in particular 45 to 65% by weight.
  • Their pH value can be at least 6, in particular 7 to 9, and is adjusted to these values if necessary.
  • the cellulose ethers contained in the jointing compounds according to the invention preferably have Brookfield viscosities of at least 5,000 mPas as a 2% strength aqueous solution at 20 ° C. Those with a value of at least 25,000 mPas, for example medium-viscosity hydroxyethyl celluloses, are preferred. So-called highly viscous cellulose ether types which have a corresponding value of at least 70,000 mPas are particularly suitable, e.g. highly viscous hydroxyethyl cellulose. Commercial high viscosity hydroxyethyl cellulose e.g. as a 2% solution at 20 ° C a viscosity of 100,000 mPas.
  • the ratio of the amounts of cellulose ether to "free” water is obviously important, which is decisive for whether this solubility limit. is exceeded or not.
  • Free water is understood here to mean the water content of the sealing compound which is available to the cellulose ethers " to dissolve in.
  • the total water content of the joint sealing compound cannot be used for a corresponding calculation. Rather, it must be taken into account that the others Constituents also require a certain amount of water or bind more or less tightly, so-called water values are known for most fillers, which is, for example, 11 g water per 100 g heavy spar for spar spar.
  • silica for example, for the HDK type V 15 from Wacker-Chemie, values between 350 and 400 g of water per 100 g of silica can be determined. These values offer the person skilled in the art an indication of what amounts of "bound” water he has to subtract from the total water content of the sealant in order to free the amount "Water. It is therefore preferred that this amount of” free "water in relation z u the amount of the cellulose ether type used in each case gives a ratio which is above the respective solubility limit.
  • fillers can be contained in the joint sealants of the invention in an amount of 0 to 60, in particular 2 to 60% by weight, based on the total mass of the joint sealants.
  • Such compositions if they contain little or no fillers, are highly transparent.
  • Low filler contents can be present, in particular, in those compositions in which the fillers have an additional thickening effect, such as silica. Only fillers used do not have this zu ⁇ sharmlichen effect, the content thereof is usually between 35 and 60 "wt .-%. We speak here of highly filled compositions.
  • the jointing compounds contain chlorinated hydrocarbons, in particular chlorinated paraffins, as plasticizers, and nonionic surfactants as wetting agents.
  • chlorinated paraffins with a. Chain length of about 10 to 18 carbon atoms and a chlorine content of about 40 to 70% by weight.
  • the joint sealants contain
  • Additives such as thickeners, defoamers and
  • Pigments at least sufficient amounts of organic liquid component and up to 1.5% by weight of cellulose ether for slurrying the cellulose ethers
  • the cellulose ether content should not be much less than 0.1% by weight. Good results are shown in particular in the case of joint sealants in which, taking into account the general parameters such as cellulose ether type and free water content, the cellulose ether content is in a range from about 0.1 to 0.5% by weight, based on the total amount.
  • the cellulose ethers are slurried in the organic liquid component before the addition in the production of the joint sealing compound according to the invention.
  • This ratio of cellulose ether to liquid is preferably in a range from 1: 2 to 1: 4, in particular approximately 1: 3.
  • One of the usual additives for joint sealants, such as plasticizers, extenders and / or wetting agents, is preferably used as the liquid organic component .
  • a neutral to basic setting of the joint sealing compounds can have a favorable effect on their stability, in particular on their shear stability.
  • the polymer dispersion is usually initially taken in the preparation of the joint sealing compounds according to the invention.
  • the usual additives with the exception of the pH regulators are then added and mixed in.
  • the mixture is then mixed with the cellulose ethers slurried in the organic liquid component and, after the fillers have been subsequently mixed in, the pH regulators are added.
  • stirring can be carried out under vacuum.
  • joint sealants are preferably used as intended. They are particularly suitable for use in areas in which they are exposed to splash water, rain or other early water pollution.
  • the irrigation equipment consisted of a housing made of transparent plastic with the dimensions: height 70 cm, width 60 cm and depth 60 cm. It comprised a housing 1, a shower head 2, a sample bowl 3, a pump 4, a floor drain 5 and a shut-off valve 6 for the drain.
  • the sample pan consisted of a vessel measuring 7 x 7 cm and had a depth of 2.5 cm.
  • the shower head was a conventional hand shower as used for body care and was set so that the sample was irrigated evenly. The distance between sample 3 and shower head 2 was 30 cm.
  • the apparatus was operated with demineralized water, the pump generating an excess pressure of approximately 0.4 bar.
  • the water flow rate was 300 l / h.
  • the spraying with water was carried out 5 minutes, in each case 1 minute after filling and smoothing the surface of the masses to be tested.
  • the washout (in% by weight) was determined by differential weighing before and after sprinkling.
  • the processability was measured according to DIN 52456. A 4 m bore, a pressure of 2 bar and a test volume of 200 ml were used.
  • Copolymer of vinyl acetate and ethylene (approximately 60% solids), with a pH of approximately 4.5 and a viscosity of approximately 1600 mPa.s at 20 ° C. (trade name: Vinnapas EP 17, from Wacker), 250 g chlorinated paraffin (C12-C14, 49% chlorine), 2800 g barium sulfate (trade name: Schwerspat EW0), 100 g titanium dioxide (trade name: KR0N0S RN 56) 25 g sodium carbonate (technical, pure commercial product), 25 g ethylene oxide adduct (approx. 9, 5 E0) of nonylphenol, 5 g of commercially available halogenated preservative, 37 g of hydroxyethyl cellulose with a viscosity of about
  • the procedure was such that the polymer dispersion was initially introduced.
  • the ethylene oxide adduct (emulsifier), the preservative, the titanium dioxide (pigment) and part of the chlorinated paraffin were then added.
  • the hydroxyethyl cellulose was slurried and also added, and the whole was mixed well.
  • the barium sulfate (filler) was added and stirred until smooth.
  • This mixture was filled into 310 ml cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • composition according to Example 1 was prepared, wherein instead of the dispersion of a copolymer of vinyl acetate and ethylene described there, 1750 g of an aqueous, commercially available dispersion based on a copolymer of styrene and butadiene (approximately 64% solids) with a pH of 10.5 and a viscosity of about 800 mPa.s at 20 ° C (trade name: Polysar 2105, Hycar) were used.
  • This mixture was filled into 310 ml cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • a composition was prepared according to Example 1, wherein instead of the dispersion of a copolymer of vinyl acetate and ethylene described there, 1750 g of an aqueous, commercially available dispersion based on a copolymer of vinyl acetate and Maleic acid di-n-butyl ester, solids content approx. 53%, pH value 4 to 5, viscosity (Brookfield, 20 ° C., 20 rpm) 1000 to 3000 mPa.s, trade name Mowilith DM 2HB, Hoechst, were used.
  • the mixture was filled into 310 ml cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • a composition was prepared according to Example 1, wherein instead of the dispersion of a copolymer of vinyl acetate and ethylene described there, 1750 g of an aqueous, commercially available silicon emulsion (elastically drying from the emulsion, approximately 45% solids), a pH of approx. 5 and a density of about 1.0 at 20 ° C, trade name: Wacker silicone building protection agents.
  • the mixture was filled into 310 ml cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • a composition was prepared according to Example 1, wherein instead of the dispersion described there of a copolymer of vinyl acetate and ethylene 1750 g of an aqueous, commercially available Dispersion of a polysulfide polymer, approximately 55% solids, pH 9-10, trade name: ZW 2028, from Thiokol.
  • the mixture was filled into 310 ml cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • a composition was prepared according to Example 1, wherein instead of the dispersion of a copolymer of vinyl acetate and ethylene described there, 1750 g of an aqueous, commercially available dispersion of a polyurethane polymer, approximately 40% solids, pH 7.0 to 7.5, viscosity 10,000 to 18,000 mPa.s, trade name: VP-LA 3110, from Henkel.
  • the mixture was filled into 310 ml cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • a composition was prepared according to Example 1, wherein instead of the dispersion of a copolymer of vinyl acetate and ethylene described there, 1750 g of an aqueous, commercially available dispersion based on a polyvinyl acetate, approximately 50% solids, pH about 6 to 7, viscosity about 10,000 to 18,000 mPa.s (Brookfield), trade name Mowilith DLR, Hoechst, were used.
  • the mixture was filled into 310 ml cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • a composition was prepared according to Example 1, wherein instead of the dispersion of a copolymer of vinyl acetate and ethylene described there, 1750 g of an aqueous, commercially available dispersion based on a copolymer of chloroprene and methacrylic acid, approximately 46.5 to 48.5% Solid, pH about 9, trade name Neoprene Latex 115, were used.
  • the mixture was filled into 310 ml cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • a composition was prepared according to Example 1, wherein instead of the dispersion of a copolymer of vinyl acetate and ethylene described there, 1750 g of an aqueous, commercially available dispersion based on a natural rubber latex, approximately 70% Solid, pH about 9 to 10, trade name Revertex Standard, were used.
  • This mixture was filled into 310 ml cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • Examples 1 to 9 were replaced by replacing the hydroxyethyl cellulose used there with a commercially available methyl hydroxypropyl cellulose (MHPC) with a viscosity of about 20,000 mPa.s of a 2% solution at 20 ° C. according to Brookfield and a hydroxypropyl group content of 3. 2% by weight measured again.
  • MHPC methyl hydroxypropyl cellulose
  • the spray rates according to DIN 52456 are comparable.
  • the smoothing behavior can be assessed as good.
  • Examples 1 to 9 were measured again after replacing the hydroxyethyl cellulose used there with a commercially available hydroxypropyl cellulose (HPC) with a viscosity of approximately 5000 mPa.s of a 2% solution at 20 ° C. according to Brookfield and a hydroxypropyl group content of 70% .
  • the spray rates according to DIN 52456 are comparable. The smoothing behavior can be assessed as good.
  • Examples 1 to 9 were measured again after replacing the hydroxyethyl cellulose (HEC) with a commercially available aqueous polyacrylic acid dispersion (approximately 25% solids, trade name: Rohagit SD 15).
  • the injection rates according to DIN 52456 were comparable.
  • the smoothing behavior is poor; the washout behavior is less favorable.
  • Examples 1 to 9 were produced without hydroxyethyl cellulose (HEC) (trade name: Natrosol 250 HR).
  • HEC hydroxyethyl cellulose
  • the smoothing behavior is . deficient; the washout behavior is less favorable.
  • the procedure was such that the polymer dispersion was initially introduced.
  • the ethylene oxide adduct (emulsifier), the preservative, the titanium dioxide (pigment) and part of the chlorinated paraffin were then added.
  • the hydroxyethyl cellulose was slurried and also added, and the whole was mixed thoroughly.
  • the sodium carbonate was then mixed in as a 10% strength aqueous solution.
  • the barium sulfate (filler) was added and stirred until smooth. This mixture was filled in 310 ml plastic cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • Example 12 In a planetary mixer, the constituents listed in Example 12 were mixed intensively for about 45 minutes using the same procedure, but instead of the hydroxyethyl cellulose:
  • Example 12 In a planetary mixer, the constituents listed in Example 12 were mixed intensively for about 45 minutes using the same procedure, but using instead of the hydroxyethyl cellulose
  • This mixture was filled in 310 ml plastic cartridges and was stable for at least one year at temperatures up to 35 ° C.
  • Wacker-Ghemie 36 g aqueous ammonia solution (25%) 52 g chlorinated paraffin (C10-C1, 49% chlorine) 18 g hydroxyethyl cellulose with a viscosity of approximately 4000 mPas of a 1% aqueous solution and a hydroxyethyl group content of 55% by weight, trade name: Natrosol 250 HHR.
  • the procedure was such that the dispersion was initially introduced.
  • the ethylene oxide adduct (emulsifier), the preservative and the defoamer were then added.
  • the hydroxyethyl cellulose was slurried in the chlorinated paraffin and likewise added, and the whole was thoroughly mixed. This was followed by the mixing in of the 25% aqueous ammonia solution. Finally, the disperse silica (filler) was added and stirred until smooth.
  • the procedure was as follows, that the dispersion was introduced, then part of the polybutene, the ethylene oxide adduct, the preservative, the plasticizer and the water and the solvent were intimately mixed with one another.
  • the other part of the polybutene was 3: 1 with the hydroxyethyl cellulose slurried and also added and mixed in and stirred for 5 minutes.
  • the chalk and the titanium dioxide were then worked in and stirred for 10 minutes. After the ammonia had been added, stirring was continued for a further 15 minutes under vacuum at 40 mbar.
  • a composition according to Example 1 was produced, a non-retarded, highly viscous hydroxyethyl cellulose, otherwise of the same specification, being used instead of the Natrosol 250 HHR type described there (trade name Natrosol 250 HH).

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Sealing Material Composition (AREA)
  • Paints Or Removers (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Building Environments (AREA)

Abstract

Des matériaux d'étanchéité résistant à l'eau avant leur durcissement contiennent des dispersions aqueuses de polymères (I); de l'éther non ionique de cellulose (II) du groupe formé par des celluloses d'hydroxyéthyle, d'hydroxyéthylméthyle, d'hydroxypropylméthyle et d'hydroxypropyle; le cas échéant des additifs tels que charges, pigments, plastifiants, diluants, épaississants, anti-moussants, dispersants, régulateurs du pH, conservateurs et anti-vieillisseurs, ainsi qu'au moins un composant organique liquide du groupe des additifs usuels. Ces matériaux peuvent être produits en mélangeant intimement (I) avec les autres composants. Afin de pouvoir ajouter des quantités du composant (II) au-dessus du seuil de solubilité, ces matériaux d'étanchéité se caractérisent par le fait que le composant (II) est ajouté en suspension sous forme retardée et/ou non retardée au composant organique liquide, puis mélangé.
EP90914905A 1989-10-19 1990-10-10 Materiaux d'etancheite resistant a l'eau avant leur durcissement Withdrawn EP0541541A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3934870A DE3934870C2 (de) 1989-10-19 1989-10-19 Fugendicht- bzw. Beschichtungsmassen auf Basis wäßriger Polymerdispersionen sowie Verwendung von nichtionischen Celluloseethern als Zusätze zu diesen Massen
DE3934870 1989-10-19
DE19904024551 DE4024551A1 (de) 1990-08-02 1990-08-02 Fruehregenfeste fugendichtungsmassen
DE4024551 1990-08-02

Publications (1)

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EP0541541A1 true EP0541541A1 (fr) 1993-05-19

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ID=25886257

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90119449A Pending EP0423612A1 (fr) 1989-10-19 1990-10-10 Masses de jointoiement résistant rapidement à la pluie
EP90914905A Withdrawn EP0541541A1 (fr) 1989-10-19 1990-10-10 Materiaux d'etancheite resistant a l'eau avant leur durcissement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP90119449A Pending EP0423612A1 (fr) 1989-10-19 1990-10-10 Masses de jointoiement résistant rapidement à la pluie

Country Status (9)

Country Link
US (1) US5118731A (fr)
EP (2) EP0423612A1 (fr)
JP (1) JPH05501271A (fr)
KR (1) KR920702399A (fr)
CN (1) CN1051052A (fr)
BR (1) BR9007753A (fr)
CA (1) CA2070638C (fr)
MX (1) MX172030B (fr)
WO (1) WO1991005826A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4224044A1 (de) * 1992-07-21 1994-01-27 Bostik Gmbh Frühregenfeste Dichtmasse auf Basis wäßriger Acrylatdispersionen und Verfahren zu ihrer Herstellung
KR20000072715A (ko) * 2000-09-21 2000-12-05 홍승익 외단열시스템 시공용 방수 모르타르 제조방법
CN101304959B (zh) * 2005-11-09 2012-09-05 吉野石膏株式会社 建材用组合物、石膏板以及使用它们的施工技术和墙壁等

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284007B (de) * 1963-10-16 1968-11-28 Wacker Chemie Gmbh Waessrige Dispersionen von Organopolysiloxanen und organischen Harzen enthaltende Anstrichmittel
GB1354436A (en) * 1971-02-22 1974-06-05 Hoechst Ag Alkyd resin-modified dispersions
DE2415556C3 (de) * 1974-03-30 1982-09-09 Henkel KGaA, 4000 Düsseldorf Verfahren zur Herstellung von mit Glyoxal behandelten hochmolekularen Substanzen
DE3814078A1 (de) * 1988-04-26 1989-11-09 Henkel Kgaa Verwendung von nichtionischen celluloseethern in fugendicht- bzw. beschichtungsmassen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9105826A1 *

Also Published As

Publication number Publication date
CN1051052A (zh) 1991-05-01
CA2070638C (fr) 1994-09-13
MX172030B (es) 1993-11-29
KR920702399A (ko) 1992-09-04
US5118731A (en) 1992-06-02
EP0423612A1 (fr) 1991-04-24
WO1991005826A1 (fr) 1991-05-02
JPH05501271A (ja) 1993-03-11
CA2070638A1 (fr) 1991-04-20
BR9007753A (pt) 1992-08-11

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