WO2001021689A1 - Adhesif de mastic gelifie a fonction duale et mortier adhesif de mastic gelifie - Google Patents

Adhesif de mastic gelifie a fonction duale et mortier adhesif de mastic gelifie Download PDF

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Publication number
WO2001021689A1
WO2001021689A1 PCT/US2000/026200 US0026200W WO0121689A1 WO 2001021689 A1 WO2001021689 A1 WO 2001021689A1 US 0026200 W US0026200 W US 0026200W WO 0121689 A1 WO0121689 A1 WO 0121689A1
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WO
WIPO (PCT)
Prior art keywords
mastic adhesive
viscous
breakable
breakable gel
latex
Prior art date
Application number
PCT/US2000/026200
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English (en)
Inventor
Conard E. Kaiser
Jock R. Collins
James R. Collins
Original Assignee
Kaiser Conard E
Collins Jock R
Collins James R
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kaiser Conard E, Collins Jock R, Collins James R filed Critical Kaiser Conard E
Priority to AU11890/01A priority Critical patent/AU1189001A/en
Publication of WO2001021689A1 publication Critical patent/WO2001021689A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
    • C04B40/06—Inhibiting the setting, e.g. mortars of the deferred action type containing water in breakable containers ; Inhibiting the action of active ingredients
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/10—Mortars, concrete or artificial stone characterised by specific physical values for the viscosity

Definitions

  • This invention relates generally to gelled adhesives. tile adhesives and dry-set mortars and methods for their formulation, and more particularly to a dual function gelled mastic adhesive which can be used "as is” for the installation of wall and ceiling tile, and can be mixed with a Portland cement powder to form a powerful latex-modified dry-set mortar having the added utility of a crack suppressive adhesive and functioning as a waterproofing membrane.
  • Japan patent JP 58017157A discloses a transparent gel that is prepared by using a highly water-absorbing synthetic resin (e.g. modified poly sodium acrylate) as a gelling agent and adding to the gel at least one additive selected from among ethylenediamine-tetraacetic acid (or its disodium salt), triisopropanolamine, ethanolamine, n-propyl gellate, nickel dibutyldithiocarbamate, phenyl-alpha-naphthylamine and benzophenone derivative in an amount of 5 wt% or less, to prevent lowering of viscosity caused by sunlight, etc.
  • a highly water-absorbing synthetic resin e.g. modified poly sodium acrylate
  • additives selected from among ethylenediamine-tetraacetic acid (or its disodium salt), triisopropanolamine, ethanolamine, n-propyl gellate, nickel dibutyldithiocarbamate, phenyl-alpha-n
  • U.S. Patent 5,558,708 discloses a "two-component" system and method for dispensing pigment in cement based composition using a predetermined and prepackaged amount of an aqueous liquid pigment carrier component that is mixed with a predetermined and prepackaged amount of a powder cement component to obtain standardized colors.
  • this system has merit it does not solve the problem of color and additive variance within batches because the pigments and additives commonly, and usually very rapidly, settle out of the liquid leaving a virtually clear liquid at the top and a concentration of additives and pigments at the bottom of the container. Vigorous stirring, shaking, or otherwise mixing of the pigment carrier component after storage and prior to combining with the powdered materials is required.
  • Relatively large quantities of suspension enhancing agents are required that serve no other purpose. These agents mask, dilute, change, or otherwise compromise the final composition. Additionally, products with large quantities of suspending agents must be sold in small containers to facilitate shaking by the end user.
  • Johansen et al U.S. Patent 5,846,315 disclose a method for preparing a pigment dispersing pigment cement composition comprising water, pigment, a suspension enhancing agent and latex polymer solids.
  • Two or more prepackaged compositions of an aqueous liquid pigment component is mixed with a prepackaged amount of a dry powder cement component to obtain cement composition with a uniform and standardized color.
  • the suspension control agents, viscosity control agents, etc., two or more of which are required, are thoroughly mixed together prior to combining with the prepackaged dry powder cement. Agents that merely increase the viscosity of the aqueous component sufficient to carry the desired additives preclude their use in water in calciferous materials.
  • Mastics are sticky adhesives that are composed of bonding agents and carriers.
  • the carrier may be water as in latex-based mastic adhesives or may be solvents as in petroleum based mastics.
  • the petroleum-based mastics are now being used far less frequently because J of the release of volatile organic compounds into the air and the environmental restrictions associated therewith. Mastics cure by the evaporation or absorption of the carrier which requires special considerations when installing impervious tile on backing that may limit carrier loss.
  • the mastic adhesives can "'skin over" around the margins of each tile thus preventing the loss of the carrier by evaporation and the mastic may virtually never set thereby causing weak bonds and job failures.
  • Dry-set mortars are Portland cement compositions that adhere by a chemical reaction between the Portland cement and water and therefore no evaporation is necessary or desired for hardening or "setting” to take place. In fact, they will “set” under water. These mortars are commonly referred to as “thinset” or “dry-set” mortars. Though somewhat accurate, the terms are commonly used interchangeably. Dry-set mortar is defined in the American National Standards Institute (ANSI) Specifications 118.1 , C-2.1 as a water- retentive Portland cement mortar, which eliminates the necessity of soaking either the tile or the backing surfaces prior to installation. Dry-set mortars have a much higher bond and compressive strength than mastic adhesives. Thus, tile installed with mortars are less likely to pop off, are more resistant to impact, and can support more weight than those installed with mastic adhesives. These are the primary reasons that mastic adhesives are reserved for wall and ceiling tile installation.
  • tricalcium silicate Upon the addition of water to dry Portland cement, tricalcium silicate rapidly reacts to release calcium ions, hydroxyl ions, and a large amount of heat. Heat is evolved with cement hydration. This is due to the making and breaking of chemical bonds during hydration. The reaction continues producing calcium and hydroxyl ions until the system becomes saturated. Once this occurs, the calcium hydroxide begins to crystallize. Simultaneously calcium silicate hydrate begins to form. Ions precipitate out of solution accelerating the reaction of tricalcium to calcium and hydroxide ions (Le Chatlier's principle).
  • Every component must be hydrated and the rate of hydration of any one is affected by the varying concentration of the others.
  • the rates of hydration of the most important components of Portland cement, in the first few days, from fastest to slowest, are: (1) tricalcium aluminate, (2) tricalcium silicate, (3) tetracalcium aluminoferrite, and (4) dicalcium silicate. The importance of complete hydration of all components of Portland cement can therefore easily be seen.
  • Components of Portland cement that do not contribute significantly to the strength of the final product do hydrate and tie up water before the major strength components are hydrated and the strength of the finished product is thereby established.
  • Clays, binders and other additives used only for suspension of additives contribute to the lack of strength of cement by physically interfering with calcium silicate hydrate crystal formation. If present, they will also interfere with water movement and the process of hydration of the important strength producing components of Portland cement so that its setting can be significantly delayed and the final product weakened.
  • the cement to water ratio is the most critical factor in the production of a "perfect" cement product. Water not consumed in the hydration reaction will remain in the microstructure pore spaces. These pores make the cement product weaker due to the lack of strength forming calcium silicate hydrate bonds.
  • the cement matrix of a Portland cement mortar can suffer excessive retardation of "set” due to its inability to extract the water needed for hydration from the cellulose. It is vital to choose the correct type, viscosity, and amount of cellulose material. Failure can still occur unless it is distributed evenly in the end product.
  • latex In formulating mastics, latex is used to promote adhesion to various substrates. Latex and cellulose additives will foam in the manufacturing process; therefore defoamers are necessary to control air entrainment in manufacturing. Air entrainment in cementitious mortars will cause a "false set" (the mortar getting crumbly while being troweled). Avoiding air entrainment is far more important in mortars than mastic adhesives.
  • Agents used for suspending additives in mastic adhesives or mortars that serve no purpose other than to keep the desired additives from separating out will weaken the end product by their very presence.
  • Multiple-use products, such as methylcellulose, are used for thickening and water retention in mastics. If used in excessive amounts, these products will prevent the mastic adhesives from drying and the bond between the tile and the substrate will be weak.
  • additives that serve no purpose other than to aid in the suspension of components in the aqueous portion when added to Portland cement will interfere with the proper set of the resulting mortar by interfering with the crystallization of the calcium silicates. Because of the inefficiency of most such suspension agents, they are often used in significant quantities. Also any material other than water and the proper sand, when added to Portland cement, will compromise the strength of the end product. Limiting the quantity of additives therefore is imperative.
  • the agents used for suspending additives in mastics or mortars can also greatly affect workability of the end products. For instance, since the average clay particle size is near one micron, when clays are used, the tiny particles act much like ball bearings thus increasing slippage of tile installed on vertical surfaces. Some products use 10 to 60% or more of suspension agents in an attempt to prevent separation and to obtain homogeneity in their products.
  • the present invention overcomes the problems discussed above, and is distinguished over the prior art in general, by a dual function homogeneous breakable gelled mastic adhesive which can be used "as is” for the installation of wall and ceiling tile, and can be mixed with a Portland cement powder to form a powerful latex-modified dry-set mortar having the added utility of a crack suppressive adhesive and functioning as a waterproofing membrane.
  • the stabilized gelled mastic adhesive prevents the separation and settling of components, and when Portland powdered cement is added, becomes a high strength latex modified dry-set mortar because of the breakable gel properties of the mastic adhesive.
  • the gelled mastic adhesive is usable as the water component for dry-set mortar because, on the addition of Portland cement, the gel will break and become a free-flowing liquid with additives thereby allowing precise quantitation and easy mixing to produce a homogeneous dry-set mortar with the strength and water resistance of a latex modified Portland cement based composition and also functions as a waterproofing and crack suppressing membrane adhesive.
  • the present invention virtually eliminates carriers that serve only to suspend additives in the mastic, thus, the workability of the mastic adhesives and mortar that results from mixing the gelled adhesive mastic of this invention with Portland cement is greatly enhanced.
  • the amount of suspension or thickening agents in the present invention are far less than 2% of the total mixture. Therefore desired products can be added in significantly higher quantities without an overall increase of additives thus avoiding compromising strength of the end product.
  • the cellulose derivatives, in the present invention are more efficiently assimilated and hydrated therefore greatly limiting and minimizing quantities required. For the same reason their efficiency to completely hydrate calcium silicates is increased.
  • Another object of this invention is to provide a gelled mastic adhesive that has a long shelf life and is exceptionally resistant to drying and setting in the shipping container if it is not completely resealed after partial use.
  • Another object of this invention is to provide a gelled mastic adhesive that can be sold, shipped and stored in large volume containers because it does not have to be shaken, stirred, agitated, or have the contents of the container otherwise mixed prior to use.
  • Another object of this invention is to provide an easily measured homogeneous non- separating breakable gelled mastic that becomes liquid upon contact with Portland cement type products for easy mixing therewith.
  • Another object of this invention is to provide a dual function homogeneous breakable gelled mastic adhesive including selected additives which can be mixed with Portland cement to produce an easily mixed homogeneous dry-set mortar, and serves as the source of all liquids required and thereby eliminating further additions of any liquids when mixing.
  • Another object of this invention is to provide a gelled mastic adhesive that allows the use of much smaller quantities of useful additives in mastic adhesives and mortars because their effects will not be masked or compromised by suspension additives that serve no useful purpose in the end product.
  • a further object of this invention is to provide a gelled mastic adhesive and a dry-set mortar that does not contain slippery clays and other additives that are used only as suspension agents and thereby increases the smoothness and workability of both the mastic adhesive and dry-set mortar and also provides for the proper setting of the resultant dry-set mortar by greatly increasing the relative amount of water present for the hydration process.
  • a still further object of this invention is to provide a dual function gelled mastic adhesive that is suitable for use in installing ceiling and wall tile and can also be mixed with Portland cement to produce a consistent homogeneous dry-set mortar that meets all of the ANSI standards and that is suitable for use in installing tile on floors and countertops.
  • a dual function homogeneous breakable gelled mastic adhesive which can be used "as is” for the installation of wall and ceiling tile, and can be mixed with a Portland cement powder to form a powerful latex-modified dry-set mortar having the added utility of a crack suppressive adhesive and functioning as a waterproofing membrane.
  • the stabilized gelled mastic adhesive prevents the separation and settling of components, and when Portland powdered cement is added, becomes a high strength latex modified dry-set mortar because of the breakable gel properties of the mastic adhesive.
  • the gelled mastic adhesive is usable as the water component for dry-set mortar because, on the addition of portland cement, the gel will break and become a free-flowing liquid with additives thereby allowing precise quantitation and easy mixing to produce a homogeneous dry-set mortar with the strength and water resistance of a latex modified Portland cement based composition and also functions as a waterproofing and crack suppressing membrane adhesive.
  • the present invention is significant improvement in the field of adhesives used in the installation of ceramic tile.
  • Organic adhesives used to install ceramic tiles on walls and ceilings must meet or exceed the ANSI A136.1 standards.
  • Dry-set Portland cement mortar must meet ANSI A118.1 standards.
  • the present invention addresses both applications by providing for a dual function gelled mastic adhesive that exceeds ANSI A136.1 standards for wall and ceiling installations, both Types I and II. and yet, upon the addition of approximately equal parts of Portland cement, exceeds the ANSI A118.1 standards for dry- set mortars.
  • the ability of the high viscosity gelled mastic adhesive to receive the powered Portland cement powder is facilitated by the breaking of the gel into a liquid.
  • the addition of more cementitious powder with additional mixing brings the paste to trowelable consistency like that of traditional dry-set mortars.
  • a gelling agent such as a cross-linked polyacrylic acid is mixed with water, which significantly lowers the pH of the water.
  • the resultant free-flowing liquid state allows the addition of the desired additives to formulate an organic adhesive to the liquid, which is of a water consistency. Mixing or stirring using moderate continuous shear forces will completely and easily disperse the other required additives so that the final product is uniform.
  • a neutralizing agent or alkaline electrolyte is added sufficient to adjust the pH so that a smooth gelled mastic adhesive is produced.
  • a cellulose thickener In one example of producing a preferred basic gelled mastic adhesive, approximately 3 parts (or about 0.001 % to about 15.0% by weight) of a cellulose thickener is added to each approximately 490 parts (or about 50% to about 98% by weight) of water (aqueous carrier) and mixed thoroughly in a ribbon blender. When complete mixing has been achieved, approximately 10.5 parts (or about 0.01 % to about 15.0% by weight) of a gelling agent such as a cross-linked polyacrylic acid is added and mixed thoroughly. Then approximately 400 parts (or about 75.0% by weight) of a highly tackafied latex, such as butadiene rubber latex, is added and mixed thoroughly.
  • a highly tackafied latex such as butadiene rubber latex
  • a neutralizing agent or alkaline electrolyte such as triethanolamine, a mixture of sodium hydroxide and water. or a dilute mixture of an amine component, is added and mixed until a smooth homogeneous gel results.
  • a neutralizing agent or alkaline electrolyte such as triethanolamine, a mixture of sodium hydroxide and water. or a dilute mixture of an amine component, is added and mixed until a smooth homogeneous gel results.
  • a neutralizing agent or alkaline electrolyte such as triethanolamine, a mixture of sodium hydroxide and water. or a dilute mixture of an amine component
  • an anti-microbial agent suitable for use with the latex and other compounds may be added and thoroughly mixed prior to adding the neutralizing agent.
  • the formulation for the gelled mastic adhesive includes anti-foaming agents, anti-microbial agents, preservatives, and other additives.
  • Example 2 Gelled Mastic Adhesive
  • a preferred gelled mastic adhesive approximately 3 parts (or about 0.001 % to about 15.0% by weight) of a cellulose thickener is added to each approximately 490 parts (or about 50% to about 98% by weight) of water (aqueous carrier) and mixed thoroughly in a ribbon blender. When complete mixing has been achieved, approximately 10.5 parts (or about 0.01 % to about 15.0% by weight) of a cross-linked polyacrylic acid is added and mixed thoroughly. Then approximately 3.6 parts (or about 0.001 % to about 0.5 % by weight) of an antifoaming agent and approximately 6.5 parts (or about 0.002% to about 1 % weight) of propylene glycol are added while mixing thoroughly between additions.
  • a highly tackafied latex such as butadiene rubber latex
  • a fungicide preservative specially designed for cellulose and latex products approximately 1 to 3 parts (or about 0.0005% to about 0.5 % by weight) of ethylene diamine tetraacetic acid is then added and mixed thoroughly.
  • a neutralizing agent or alkaline electrolyte such as triethanolamine, a mixture of sodium hydroxide and water, or a dilute mixture of an amine component, is added and mixed until a smooth homogeneous gel results.
  • cellulose thickeners such as hydro xy ethyl cellulose, hydroxy methyl cellulose, hydroxy propyl cellulose, carboxy methyl cellulose, sodium CMC and other cellulose of a similar nature may be used which function to resist the extraction of water from the mastic.
  • the cross-linked polyacrylic acid significantly lowers the pH of the water and serves as a gelling agent, and other suitable gelling agents may be used.
  • the gelling component also encapsulates the latex binder component. Highly tackafied latex compounds such as butadiene rubber latex, butadiene-styrene. acrylic or a combination thereof may be used.
  • the optional anti-microbial agent prevents microbial degradation in the container and extends shelf life.
  • Latex and cellulose additives tend to foam in the manufacturing process and in example 2 above the antifoaming agent controls air entrainment in the adhesive.
  • a calcium-containing powdered cementitious material such as Portland cement (described below) the antifoaming agent will prevent air entrainment in the cementitious mortar which may otherwise cause a "false set" (the mortar getting crumbly while being troweled).
  • the propylene glycol functions as a coupler to assist in coupling the aqueous phase to the hydrophyllic phase of the other ingredients. It also functions as a cleaning solvent.
  • the ethylene diamine tetraacetic acid is a chelating agent and functions as a binder to bind up the free calcium in the water.
  • the formulation for the gelled mastic adhesive may include one or various combinations of the anti-foaming agents, anti-microbial agents, preservatives, and other additives.
  • the finished gel mastic adhesive has the consistency of a custard or jelly.
  • the viscosity level of the finished gel may range from about 4,000 to about 200,000 centipoise (typically from about 12,500 to about 200,000 centipoise).
  • Prior to the present invention combining ordinary conventional mastic adhesives with a Portland cement product was not possible because the conventional mastic adhesives have a very high viscosity in excess of 600,000 centipoise which makes it impossible to add more filler such as a Portland cement.
  • the gelled mastic adhesive of the present invention has greater workability than conventional mastic adhesives. It provides an abundance of open time that allows the mechanic the benefit of installing larger areas, and an abundant tack time that gives the slower mechanic some advantage. There is no slip so workmen can set tile from the top level-line down thus allowing the use of less skilled mechanics.
  • the present gelled mastic becomes fluid when a filler such as Portland cement is added, the addition of more Portland cement will give a resultant viscosity sufficient to function as a dry-set mortar thereby supplying the necessary free water for the Portland cement to use in the hydration process and giving the strength expected of a dry-set mortar. Due to the even distribution of water in the matrix, gel-based mastic adhesives of the present invention impart homogeneous water availability, thereby making the necessary water available for the hydration process of the added Portland cement which imparts the required strength to the resultant tile adhesive bond.
  • the components of the gelled mastic adhesive examples described above are completely suspended in an aqueous medium by a uniform yet breakable gel.
  • the cross- linked polyacrylic acid gelled water carries the additives in a totally stable manner. It reverts almost instantly to a liquid on contact with the many electrolytes and polyvalent cations such as those present when any calciferous material like Portland cement powder contacts the gel.
  • This allows a mastic-cement combination to be used as a dry-set mortar for installing tile on floors and countertops and thereby imparts to the normally low strength Type I or II mastic adhesive the features and high shear strengths of a premium latex modified dry-set mortar.
  • a powdered calcium-containing cementitious material such as Portland cement are added to the gel mastic adhesive and thoroughly mixed together.
  • the gel mastic adhesive upon mixing with the powdered calcium- containing cementitious material, breaks upon contact to become a free flowing liquid and serves as the liquid component for hydrating the cementitious material, thereby allowing precise quantitation and easy mixing.
  • the mixture forms a homogeneous high-strength latex modified dry-set mortar.
  • the addition of more cementitious powder with additional mixing brings the paste to trowelable consistency like that of traditional dry-set mortars .
  • the finished dry-set mortar thus produced is a homogeneous dry-set mortar with the strength and water resistance of a latex modified Portland cement based composition and also may function as a waterproofing and crack suppressing membrane adhesive.
  • This dry-set mortar meets or exceeds all ANSI A118.1 standards.
  • the calcium-containing cementitious material used is a powdered Portland type cement, however, other calcium-containing cementitious materials may be used such as masonry cements, blast furnace slag cements, Portland-pozzolan cement, and aluminous cements.
  • mastic adhesives could not be used to install vitreous tile. If such mastic was used, it would dry around the edges and this dry skin would prevent the drying of most of the mastic adhesive behind the tile. Therefore no bond would develop between the tile and the backing material.
  • portland cement By simply adding portland cement to the gelled mastic adhesive, such tile can be installed with confidence that drying will occur.
  • the setting in the gelled mastic -portland cement mix is dependent on chemical activity previously described rather than evaporation of the carrier.
  • the gelled mastic adhesive described by this invention When the gelled mastic adhesive described by this invention is mixed with Portland cement for floor and countertop use, or if additional strength is desired in the installation of wall or ceiling tile, the Portland cement sets into an exceedingly strong bond in its normal fashion thus giving the strength of a dry-set mortar.
  • the gel that is used to stabilize the mastic adhesive breaks into a low viscosity liquid when mixed with the Portland cement thus allowing homogeneous mixing while supplying all of the required additives as more Portland cement is added to make a trowelable paste.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

L'invention concerne un adhésif à fonction duale, organique, facile à utiliser, qui se présente sous forme d'un adhésif de mastic gélifié stabilisé prêt à l'emploi dans un emballage unique et empêche la séparation et la sédimentation des composés, lorsqu'on l'utilise comme adhésif de mastic ordinaire pour fixer des carreaux en céramique sur des murs ou des plafonds. Lorsque l'on y ajoute du ciment en poudre, cet adhésif devient un mortier à séchage instantané modifié contenant du latex à haute résistance, en raison des propriétés uniques de gel cassable de l'adhésif de mastic. L'adhésif de mastic gélifié est utilisé en tant que composé d'eau pour mortier à séchage instantané, puisque suite à l'ajout de ciment Portland, le gel se casse et devient un liquide fluide renfermant des additifs, ce qui permet une quantification précise et un mélange facile afin de produire un mortier homogène à séchage instantané qui présente la résistance et la résistance à l'eau d'une composition à base de ciment de Portland modifié contenant du latex. Cet adhésif agit également comme un adhésif de membrane supprimant les fissures et imperméabilisant.
PCT/US2000/026200 1999-09-22 2000-09-22 Adhesif de mastic gelifie a fonction duale et mortier adhesif de mastic gelifie WO2001021689A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU11890/01A AU1189001A (en) 1999-09-22 2000-09-22 Dual function gelled mastic adhesive and gelled mastic adhesive mortar

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15532999P 1999-09-22 1999-09-22
US60/155,329 1999-09-22

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1401783A2 (fr) * 2000-08-30 2004-03-31 Kaiser Industries, Ltd. Support d'additif en gel cassable pour compositions ioniques
DE102008016325A1 (de) * 2008-03-28 2009-10-01 Poligate Ltd. Boden- oder Fundamentverfestiger
CN116354744A (zh) * 2023-04-28 2023-06-30 湖北工业大学 一种二氧化钛抗菌自洁免烧釉及其使用方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204876A (en) * 1978-07-17 1980-05-27 M. Hamburger & Sons, Inc. Cement coloring composition and method of producing same
JPS5817157A (ja) * 1981-06-26 1983-02-01 Kobayashi Koryo Kk 粘度不低下性ゲルおよびゲルの粘度低下防止方法
US5855665A (en) * 1995-05-11 1999-01-05 C-Cure Corporation System and method for producing a pigmented cement composition

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204876A (en) * 1978-07-17 1980-05-27 M. Hamburger & Sons, Inc. Cement coloring composition and method of producing same
JPS5817157A (ja) * 1981-06-26 1983-02-01 Kobayashi Koryo Kk 粘度不低下性ゲルおよびゲルの粘度低下防止方法
US5855665A (en) * 1995-05-11 1999-01-05 C-Cure Corporation System and method for producing a pigmented cement composition

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1401783A2 (fr) * 2000-08-30 2004-03-31 Kaiser Industries, Ltd. Support d'additif en gel cassable pour compositions ioniques
EP1401783A4 (fr) * 2000-08-30 2004-05-19 Kaiser Ind Ltd Support d'additif en gel cassable pour compositions ioniques
DE102008016325A1 (de) * 2008-03-28 2009-10-01 Poligate Ltd. Boden- oder Fundamentverfestiger
CN116354744A (zh) * 2023-04-28 2023-06-30 湖北工业大学 一种二氧化钛抗菌自洁免烧釉及其使用方法
CN116354744B (zh) * 2023-04-28 2024-03-01 湖北工业大学 一种二氧化钛抗菌自洁免烧釉及其使用方法

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AU1189001A (en) 2001-04-24

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