CN111379392A - Method for mounting decorative wall or floor coverings - Google Patents
Method for mounting decorative wall or floor coverings Download PDFInfo
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- CN111379392A CN111379392A CN201811636904.8A CN201811636904A CN111379392A CN 111379392 A CN111379392 A CN 111379392A CN 201811636904 A CN201811636904 A CN 201811636904A CN 111379392 A CN111379392 A CN 111379392A
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- China
- Prior art keywords
- curable paste
- surface covering
- acid
- seam
- curable
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
- E04F13/0891—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with joint fillings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F21/00—Implements for finishing work on buildings
- E04F21/165—Implements for finishing work on buildings for finishing joints, e.g. implements for raking or filling joints, jointers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
- B05D3/067—Curing or cross-linking the coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The present invention relates to a method of installing a decorative wall or floor covering. A method for installing a decorative surface covering comprising: the method includes the steps of disposing a surface covering element on a substrate, applying a UV curable paste into a joint between adjacent surface covering elements, if there is excess UV curable paste, removing the excess UV curable paste, and curing the UV curable paste with UV light.
Description
Technical Field
The present invention relates generally to the installation of surface coverings, in particular wall coverings (wall covering) or floor materials (flooring), for use as finishing work on buildings (finishing work). The invention relates more particularly to the application of decorative surface coverings in the form of panels (panels), tiles (tiles) or other dimensionally stable surface covering elements and the sealing of seams (joints) between individual elements.
Technical Field
When laying the surface covering elements, a seam is formed between adjacent surface covering elements, wherein the sides of the surface covering elements face each other at a small distance. As long as they are not sealed, the seams represent openings through which water and other liquids can penetrate into the substrate.
Various methods are known in the art for filling or sealing such seams. Joints between tiles are typically grouted with mortar. The seams between the synthetic (polymer-based) surface covering elements may be sealed using hot melt adhesives. To this end, a welding machine (welding torch or the like) may be used to weld the electrode in situ. As the material cools down, any excess material is cut or scraped off so as to obtain a flush continuous surface. Examples of electrodes suitable for use in ground materials have been disclosed in WO 2009/62962 a 1.
The appearance of the seam after application of the sealant is important. While the seam itself may remain visible, excess sealant that protrudes from the seam and extends over the visible surface of the decorative covering is often considered a defect. Therefore, measures to avoid this problem have been proposed.
US 2017/157840 a1 discloses a seam treatment method for sealing seams between surface covering elements having a protective top layer made of an ultraviolet radiation curable resin. The method includes injecting a seam treatment agent having no dissolving ability with respect to a protective layer into a seam, and before the injected seam treatment agent is cured, attaching an adhesive tape in such a manner that: this is so that the tape spans the seam and contacts the seam treating agent present in the seam as well as the protective layers on both sides of the seam. The seam treatment agent is then allowed to dry. Finally, the tape is peeled off, whereby any excess seam treatment agent protruding from the seam remains attached to the tape and torn off.
Another method disclosed in JP 3388960 includes attaching an adhesive tape to a floor material surface so as to cover an upper portion of a seam, cutting the adhesive tape along the seam, injecting a seam sealer (seam sealer) into the seam while moving an injection nozzle along the cut in the adhesive tape, and then peeling the adhesive tape.
Summary of The Invention
According to an aspect of the invention, a method for mounting a decorative surface covering comprises:
disposing a surface covering element on the substrate,
applying a UV curable paste (sealant) into the seams between adjacent surface covering elements,
omicron if there is excess UV curable paste, removing the excess UV curable paste, and
curing the UV curable paste with UV light.
As used herein, the qualifier "decorative" is used to indicate that the surface covering remains visible after installation, but the term is not intended to imply any particular aesthetic design. The decorative surface covering may constitute a final finishing layer (finishing layer) of the wall or floor. However, it is not excluded that a transparent or at least translucent finishing layer, such as a wear-resistant varnish, may be applied on top after mounting.
The UV curable paste preferably includes an acrylate resin (e.g., an epoxy acrylate resin, a polyester acrylate resin, or a urethane acrylate resin). As used herein, UV stands for ultraviolet radiation, i.e. electromagnetic radiation having a wavelength from 10nm to 400 nm. The UV curable paste may comprise a photopolymerization initiator (photoinitiator), a co-initiator (e.g., photoactivator, spectral sensitizer, reducing agent, or the like), and one or more additives (e.g., stabilizers, antioxidants, plasticizers, pigments, compatibilizers, adhesion promoters, processing aids, fillers, dispersants, flow aids, thickeners, defoamers, deaerators, leveling agents (flatting agents), matting agents, wetting agents, and the like).
According to an embodiment, the UV curable paste is a UV curable polymer formulation comprising at least one UV curable urethane acrylate (component a), optionally at least one acidic adhesion promoter (component B), optionally at least one mono-or multifunctional reactive diluent (component C) and a photoinitiator (component D). Preferably, the radiation curable polymer formulation further comprises one or more fillers, such as, for example, calcium carbonate, chalk, colloidal or amorphous silica, magnesium oxide, clay, calcium silicate or other silicates, talc, aluminates or similar fillers (including mixtures of different kinds of filler materials).
The radiation-curable urethane acrylate (component A) preferably has a molecular weight of from 500 g.mol-1To 25000 g.mol-1More preferably from 1000 g.mol-1Up to 20000g mol-1And still more preferably from 1500 g.mol-1To 15000 g.mol-1Average molecular weight within the range of (1).
The radiation-curable urethane acrylates (component A) are preferably prepared from hydroxyl-containing monomers and/or polymers and compounds which simultaneously contain at least one isocyanate-reactive group (for example alcohols, amines or thiols) and at least one polymerizable acrylate group by reaction with polyisocyanates. Radiation curable urethane acrylates contain both urethane and acrylate groups.
Suitable hydroxyl-containing monomers are preferably selected from the group consisting of: methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 2-propanol, 2-butanol, 2-ethylhexanol, ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, tripropylene glycol, 1, 2-propanediol, 1, 3-propanediol, 1, 4-butanediol, neopentyl glycol, 2-ethyl-2-butylpropanediol, trimethylpentanediol, 1, 3-butanediol, 1, 4-cyclohexanedimethanol, 1, 6-hexanediol, 1, 2-and 1, 4-cyclohexanediol, 2-dimethylolpropionic acid, 2-dimethylolbutyric acid, hydrogenated bisphenol A (2, 2-bis (4-hydroxycyclohexyl) propane), diols derived from dimer fatty acids (dimer fatty acids), 2, 2-dimethyl-3-hydroxypropionic acid (2, 2-dimethyl-3-hydroxypropyl) ester, glycerol, trimethylolethane, trimethylolpropane, trimethylolbutane and/or castor oil. Neopentyl glycol, 1, 4-butanediol, 1, 4-cyclohexanedimethanol, 1, 6-hexanediol and/or trimethylolpropane are particularly preferred.
Suitable hydroxyl-containing polymers preferably include polyesters, polyethers, polyetheresters, polycarbonates, polyethercarbonate polyols and polycarbonate polyesters having a functionality of from 1.0 to 3.0, in each case at from 300g mol-1To 4000g mol-1Preferably 500 g.mol-1To 2500 g.mol-1A weight average molecular weight within the range of (1). Hydroxy functionThe polyester and polyether diols of (a) are particularly preferred. Particularly useful polyether diols are dihydroxy-terminated polyalkylene oxides (polyalkylene oxides) having 2 to 4 carbon atoms in each alkylene group. Such polyether diols are prepared by polymerizing ethylene oxide, propylene oxide or butylene oxide or mixtures thereof with a dihydroxy initiator (dihyddic initiator) to form block copolymers. Such initiators are ethylene glycol, diethylene glycol, 1, 2-propanediol, 1, 4-butanediol (and the like). Preferred polyether diols are prepared by polymerizing tetrahydrofuran to polyether diols having 4 carbon atoms in each alkylene group. Preferably, the polyether diol has 800 g.mol-1To 2000 g.mol-1Molecular weight of (2). Particularly preferably, the polyether diols have 800g mol-1To 1200 g.mol-1Molecular weight of (2).
The hydroxyl-containing polyesters may be prepared by polycondensation of suitable dicarboxylic acids and diols. The condensation may take place in the melt or in azeotropic mode in an inert gas atmosphere at a temperature of from 180 ℃ to 260 ℃, preferably from 200 ℃ to 230 ℃.
The carboxylic acids preferably used in the preparation of the polyesters may be aliphatic, cycloaliphatic, aromatic and/or heterocyclic in nature and, if desired, may be substituted by halogen atoms and/or unsaturated. Examples of carboxylic acids include the following: succinic acid, adipic acid, suberic acid, azelaic acid, sebacic acid, phthalic acid, terephthalic acid, isophthalic acid, trimellitic acid, pyromellitic acid, tetrahydrophthalic acid, hexahydrophthalic acid, hexahydroterephthalic acid, dichlorophthalic acid and tetrachlorophthalic acid, endomethylenetetrahydrophthalic acid (endomethylenetetrahydrophthalic acid) and glutaric acid, 1, 4-cyclohexanedicarboxylic acid, and-where available-their anhydrides or esters. Adipic acid and 1, 4-cyclohexanedicarboxylic acid may be found to be particularly suitable.
Examples of suitable polyols include monoethylene glycol, 1, 2-and 1, 3-propanediol, 1, 4-and 2, 3-butanediol, di- β -hydroxyethylbutanediol, 1, 5-pentanediol, 1, 6-hexanediol, 1, 8-octanediol, decanediol, dodecanediol, neopentyl glycol, cyclohexanediol, bis (hydroxymethyl) tricyclo (5.2.1.0(2,6)) decane (Dicidol), 1, 4-bis (hydroxymethyl) cyclohexane, 2-bis- (4-hydroxycyclohexyl) propane, 2-bis [4- (β -hydroxy-ethoxy) phenyl ] propane, 2-methylpropane-1, 3-diol, 2-methylpentane-1, 5-diol, 2,4(2,4,4) -trimethyl-hexane-1, 6-diol, glycerol, trimethylolpropane, trimethylolethane, hexane-1, 2, 6-triol, butane-1, 4-triol, trimethylolethane-triol, trimethylolpropane-1, 4, 4-trimethylolethane-diol, pentaerythritol, trimethylolpropane ethylene glycol, trimethylolpropane propylene glycol, trimethylolpropane ethylene glycol β, trimethylolpropane ethylene glycol, trimethylolpropane triole, pentaerythritol and pentaerythritol.
The polyesters used to obtain the radiation-curable urethane acrylates preferably have an OH number (OH number) of from 15 to 750mg KOH/g. Mixtures of polyesters may also be used.
For the preparation of the urethane acrylates, the polyisocyanates used are preferably diisocyanates of aliphatic or aromatic structure. Examples of aliphatic (cyclo) polyisocyanates are: 2-methylpentamethylene 1, 5-diisocyanate (MPDI), Hexamethylene Diisocyanate (HDI), trimethylhexamethylene 1, 6-diisocyanate (TMDI), in particular the 2,2, 4-and 2,4, 4-isomers and technical mixtures of the two isomers (technical mixture), 4, 4' -methylenebis (cyclohexyl isocyanate) (H12MDI), norbornane diisocyanate (NBDI) and 3,3, 5-trimethyl-1-isocyanato-3-isocyanatomethyl-cyclohexane (IPDI). Also very suitable are polyisocyanates, which are obtainable by reacting polyisocyanates with themselves via isocyanate groups, such as isocyanurates, which take place by reaction of the three isocyanate groups. The polyisocyanates can likewise contain biuret groups or allophanate groups. IPDI and/or IPDI trimer can be found to be particularly suitable.
Examples of aromatic polyisocyanates are 1, 4-diisocyanatobenzene (BDI), 2, 4-diisocyanatotoluene (2,4-TDI), 2, 6-diisocyanatotoluene (2,6-TDI), 1' -methylenebis [ 4-isocyanatobenzene ] (MDI), Xylylene Diisocyanate (XDI), tetramethylxylylene diisocyanate (TMXDI), 1, 5-Naphthalene Diisocyanate (NDI), tolidine diisocyanate (TODI) and p-phenylene diisocyanate (PPDI). An aliphatic (cyclo) polyurethane may be preferred.
Examples of suitable polymerizable compounds having at least one free OH group and a polymerizable (meth) acrylate group include the esterification products of aliphatic and/or aromatic polyols with (meth) acrylic acid having a residual average hydroxyl functionality of 1. Partial esterification products of (meth) acrylic acid with a tri-, tetra-, penta-, or hexa-hydroxyl polyol or mixtures thereof may be preferred. In this case, it is also possible to use reaction products of such polyols with ethylene oxide and/or propylene oxide or mixtures thereof, or reaction products of such polyols with lactones, which are added to these polyols in a ring-opening reaction. Examples of suitable lactones are gamma-butyrolactone and in particular delta-valerolactone and epsilon-caprolactone. These modified or unmodified polyols are partially esterified with acrylic acid, methacrylic acid, or mixtures thereof until the desired residual hydroxyl functionality is achieved.
Particularly preferred are compounds comprising at least two (meth) acryloyl functional groups, such as glycerol diacrylate, trimethylolpropane diacrylate, pentaerythritol triacrylate, ditrimethylolpropane triacrylate, dipentaerythritol pentaacrylate, and (poly) ethoxylated and/or (poly) propoxylated equivalents thereof.
Other suitable compounds are (meth) acrylates with linear polyols and branched polyols in which at least one hydroxyl function remains free, for example hydroxyalkyl (meth) acrylates having 1 to 20 carbon atoms in the alkyl radical. Preferred molecules in this class are hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, hydroxybutyl (meth) acrylate.
It is also possible to use hydroxy-functional polyester (meth) acrylates, polyether ester (meth) acrylates, polycarbonate (meth) acrylates and polyether carbonate (meth) acrylates which contain at least one hydroxy-functional group.
To prepare urethane acrylates from OH-containing monomers and/or polymers, polyisocyanates and acrylate components, the polyisocyanate is first introduced, a suitable catalyst (e.g., DBTL) and polymerization inhibitor (e.g., IONOL CP, Shell) are added, and the acrylate component, e.g., hydroxyethyl acrylate, is added at an NCO: OH ratio of 2.5:1 to 1: 1. Thereafter, OH-containing monomers and/or polymers, preferably polyesters, are added to the reaction product at a residual NCO: OH ratio of 0.5:1 to 0.95:1 and the reaction is completed at 40 ℃ to 120 ℃ such that an NCO content of less than 0.1% is obtained.
The acidic adhesion promoter (component B) preferably comprises one or more acid functional groups and one or more (meth) acrylic acid functional groups. The one or more acid functional groups are preferably selected from the group consisting of: -SO3H、-OSO3H、-COOH、-OPO3H2and-OPO2HO-. Optionally, the acidic hydrogen may be substituted with an alkali metal or ammonium group (ammonium base). The acidic adhesion promoter is preferably the reaction product of one or more components containing acid functional groups and one or more functionalized (meth) acrylates. Examples are compounds containing-SO3H、-OSO3H、-COOH、-OPO3H2and-OPO2Ethylenically unsaturated polyesters and polyurethanes of one or more of HO-functional groups.
Polyesters comprising one or more acid functional groups are preferably prepared from one or more polyol components and one or more polyacid components, wherein one or more diol components and/or one or more diacid components comprise-SO3H、-OSO3H. -COOH and-OPO3H2One or more of the functional groups.
comprising-SO3H、-OSO3H. -COOH and-OPO3H2Examples of functional polyacids or polyols include: 5-sulfoisophthalic acid, 2-sulfoisophthalic acid, 4-sulfophthalic acid, 3-sulfophthalic acid5-sulfoisophthalic acid dialkyl esters, 2-sulfophthalic acid dialkyl esters, alkyl 4-sulfophthalic acid (alkyl 4-sulfophthalic acid), alkyl 3-sulfophthalic acids, sodium or potassium salts of these compounds, and dimethylolpropionic acid. Optionally, sodium, potassium or ammonium salts may be used.
Polyesters containing one or more phosphate groups in the polyester chain may be prepared by condensation of one or more polyols and one or more polyacids in the presence of phosphoric acid.
Ethylenically unsaturated polyurethane resins having one or more acid functional groups can be synthesized by the reaction of: polyisocyanate compounds, polyol components with one or more acid functions, such as polyester polyols with one or more acid functions and/or dimethylolpropionic acid, and compounds with hydroxyl functions and at least one ethylenically unsaturated double bond, such as, for example, 2-hydroxyethyl acrylate.
Hydroxy-functional polyesters having one or more acid functional groups may be converted to ethylenically unsaturated polyesters having one or more acid functional groups by reaction with (meth) acrylic acid.
Having one or more-SO3H、-OSO3H、-COOH、-OPO3H2and-OPO2The HO-functional acid-functional polyester can be converted into an ethylenically unsaturated polyester having one or more acid functions by reaction with glycidyl (meth) acrylate or hydroxyethyl (meth) acrylate.
Other examples of acidic adhesion promoters are: the reaction product of hydroxyethyl acrylate and phosphorus pentoxide to form 2-acryloylethyl phosphate, the reaction product of 2-hydroxyethyl acrylate and succinic anhydride, the reaction product of a polyester oligomer containing hydroxyl and carboxyl functional groups with acrylic acid, and the reaction product of a carboxyl-functionalized polyester oligomer with hydroxyethyl (meth) acrylate.
The acidic adhesion promoter (component B) preferably has less than 10000 g.mol-1More preferably less than 7500 g.mol-1And is optimalOptionally less than 5000 g/mol-1Molecular weight of (2).
Reactive diluents (component C) include, for example, alcohols: methanol, ethanol, 1-propanol, 1-butanol, 1-pentanol, 1-hexanol, 2-propanol, 2-butanol, 2-ethylhexanol, dihydrodicyclopentadienol, tetrahydrofurfuryl alcohol, 3, 5-trimethylhexanol, octanol, decanol, dodecanol, ethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, tripropylene glycol, 1, 2-propanediol, 1, 3-propanediol, 1, 4-butanediol, neopentyl glycol, 2-ethyl-2-butylpropanediol, trimethylpentanediol, 1, 3-butanediol, 1, 4-cyclohexanedimethanol, 1, 6-hexanediol, 1, 2-and 1, 4-cyclohexanediol, hydrogenated bisphenol A (2, 2-bis (4-hydroxycyclohexyl) propane), Glycerol, trimethylolethane, trimethylolpropane, trimethylolbutane, pentaerythritol, ditrimethylolpropane, dipentaerythritol, sorbitol fully esterified with (meth) acrylic acid, and ethoxylated and/or propoxylated derivatives of these alcohols fully esterified with (meth) acrylic acid, as well as technical-grade mixtures obtained during the (meth) acrylation of the above-mentioned compounds.
Further suitable reactive diluents (component C) are, for example, those having a molar mass preferably comprised between 500 g.mol-1And 10000 g.mol-1Epoxy (meth) acrylates, polyether (meth) acrylates, polyester (meth) acrylates and polycarbonate (meth) acrylates of number average molecular weight in between.
Reactive diluents comprising more than one ethylenically unsaturated group may be found to be particularly suitable.
The radiation curable polymer formulation may comprise any suitable photoinitiator (component D). typical photoinitiators are of the type which generate free radicals upon exposure to radiant energy suitable photoinitiators include, for example, aromatic ketone compounds such as benzophenones, alkylbenzophenones, Michler's ketone, anthrone and halogenated benzophenones.further suitable compounds include, for example, 2,4, 6-trimethylbenzoyldiphenylphosphine oxide, phenylglyoxylates, anthraquinones and derivatives thereof, benzil ketals (benzil ketals) and hydroxyalkylphenones (e.g. 2-hydroxy-2-methyl-1-phenyl-propan-1-one or the like). other suitable photoinitiators include 2, 2-diethoxyacetophenone, 2-bromoacetophenone or 3-bromoacetophenone or 4-bromoacetophenone, 3-allyl-acetophenone or 4-allyl-acetophenone, 2-naphthophenone, benzaldehyde, benzoin, alkyl benzoin (alkylbenzoin benzoin, 3-bromoacetophenone, p-bromoacetophenone, 4-chlorobenzoylbenzophenone, p-chlorobenzophenone, 4-chloro-3-4-chloro-benzoylbenzophenone, p-4-chloro-propyl-1-phenyl-1-one or the like.
Several suitable photoinitiators are commercially available from Ciba, for example
184 (1-hydroxy-cyclohexyl-phenyl-ketone),
819 (bis (2,4, 6-trimethylbenzoyl) -phenylphosphine oxide),
1850 (50/50 mixtures of bis (2, 6-dimethoxybenzoyl) -2,4, 4-trimethylpentylphosphine oxide and 1-hydroxy-cyclohexyl-phenyl-ketone),
1700 (25/75 mixture of bis (2, 6-dimethoxybenzoyl) -2,4, 4-trimethylpentylphosphine oxide and 2-hydroxy-2-methyl-1-phenyl-propan-1-one),
907 (2-methyl-1 [4- (methylthio) phenyl)]-2-morpholinopropan-1-one),
MBF (methyl phenylglyoxylate),
2020 photoinitiator blend (20% by weight of phenylbis (2,3, 6-trimethylbenzoyl) phosphine oxide and 80% by weight of 2-hydroxy-2-methyl-1-phenyl-1-propanone) and
4265 (50/50 mixture of bis (2,4, 6-trimethylbenzoyl) -phenylphosphine oxide and 2-hydroxy-2-methyl-1-phenyl-propan-1-one). There may be other suitable photoinitiators not listed.
Photoactivators may be used in combination with the aforementioned photoinitiators. The photoactivator may for example be selected from: methylamine, tributylamine, methyldiethanolamine, 2-aminoethylethanolamine, allylamine, cyclohexylamine, cyclopentadienylamine, diphenylamine, xylylamine, trimethyylamine (trixylamine), tribenzylamine, N-cyclohexylethyleneimine, piperidine, N-methylpiperazine, 2-dimethyl-1, 3-bis (3-N-morpholinyl) -propionyloxypropane, and mixtures thereof.
The radiation curable polymer formulation may contain additives such as, for example, dispersants, flow aids, thickeners, defoamers, deaerators, pigments, fillers, levelers, matting agents and wetting agents.
According to an embodiment, the UV curable paste is a UV curable polymer formulation comprising at least one UV curable polyurethane acetate (component a), optionally at least one acidic adhesion promoter (component B), optionally at least one mono-or multifunctional reactive diluent (component C) and a photoinitiator (component D). Preferably, the radiation curable polymer formulation further comprises one or more fillers, such as for example calcium carbonate, chalk, colloidal or amorphous silica, or the like. Components A, B (optional), C (optional) and D are preferably combined with colloidal silica as filler.
According to embodiments, the UV curableThe paste comprises from 50 to 85 wt.% of an acrylate resin or a urethane acrylate resin, from 10 to 30 wt.% of colloidal silica and from 5 to 20 wt.% of a photoinitiator. A preferred example of the acrylate resin is a butyl acrylate/methyl methacrylate/methacrylic acid copolymer resin. The acrylate resin preferably has a molecular weight of from 500 g.mol-1To 25000 g.mol-1More preferably from 1000 g.mol-1Up to 20000g mol-1And still more preferably from 6000g · mol-1To 19500 g/mol-1Average molecular weight within the range of (1). Suitable photoinitiators may include, for example, 2-hydroxy-2-methyl-1-phenyl-propan-1-one.
The decorative surface covering is preferably a wall covering. Alternatively, the decorative covering may be a floor covering.
Preferably, the UV curable paste is transparent (at least in the cured state).
The edges of the surface covering elements facing each other at the joint are preferably cleaned before applying the UV curable paste. Cleaning may include the use of water and/or organic solvents such as, for example, alcohols (e.g., methanol, ethanol, IPA, etc.).
Preferably, any excess UV curable paste is removed by wiping it off with a cloth.
The surface covering element is preferably a rigid floor or wall covering element. The term "rigid" is used herein as a qualifier for a floor covering element or wall covering element or a layer thereof that is substantially more rigid than conventional resilient floor materials. In particular, as used herein, "rigid" is intended herein to imply a relatively high modulus of elasticity (measured according to EN 310), for example a modulus of elasticity of greater than 1000MPa, preferably greater than 2000MPa, more preferably greater than 4000 MPa. Preferably, the rigid floor or wall covering element has a structural core, the MOE of which is preferably in the range from 1000MPa to 15000 MPa. Compared to a resilient panel, a rigid panel is easy to mount and better bridges slight unevenness and local bumps or depressions of the mounting surface in a permanent manner (over the lifetime of the surface covering). The high stiffness of the core is preferably achieved by incorporating a relatively large amount of mineral filler material and/or by incorporating no or only a small amount of plasticizer into the thermoplastic material of the core layer. Preferably, the rigid floor or wall covering element has a structural core consisting of a thermoplastic with a plasticizer content of less than 5% by weight. Plasticizers that may be used in the context of the present invention include: organic esters of various acids such as phthalic acid, phosphoric acid, adipic acid, sebacic acid, citric acid. Specific examples of the plasticizer include dioctyl phthalate, dioctyl adipate, dibutyl sebacate, and dinonyl phthalate and glyceryl stearate. Alternative plasticizers include the so-called "bioplasticizers", for example plasticizers derived from vegetable oils such as the following: soybean oil, canola oil, corn oil, linseed oil, rapeseed oil, safflower oil, sunflower oil, tall oil, tung oil, and the like.
The thermoplastic of the structural core is preferably polyvinyl chloride. Alternatives to PVC core layers include layers comprising: PE (polyethylene, including LDPE, HDPE, etc.), PU (polyurethane), ABS (acrylonitrile butadiene styrene), PP (polypropylene), polyvinyl acetate (PVA), polyvinyl alcohol (PVOH), other vinyl and vinylidene resins and copolymers, Polystyrene (PS), styrene copolymers, propylene copolymers, polyesters, acrylics, polyamides, Polycarbonate (PC), polyimides, polysulfones, and the like. The thermoplastic material may be virgin, recycled or a mixture of both. Of all the cited thermoplastics, PVC is currently the preferred choice.
According to a preferred aspect of the method, the application of the UV curable paste is only performed locally at the joint (i.e. not over the entire surface of the floor covering element or the wall covering element).
Preferably, the surface covering element has a thickness in the range from 1mm to 20mm, preferably from 2mm to 15 mm.
The seams between adjacent surface covering elements preferably have a maximum visible width of 2mm, more preferably 1.5mm, and even more preferably 1 mm. By "visible width" is meant the width of the seam at the visible surface of the surface covering element. It is not excluded that the seam width is larger in parts not visible to the eye when the surface covering is in place, for example on the back of the surface covering element or on any connecting profile (e.g. tongue and groove, etc.).
Preferably, the surface covering element is a panel having a length in the range from 1m to 4m, more preferably from 2m to 3m, and a width in the range from 0.4m to 1.5m, more preferably from 0.6m to 1.2 m.
According to a preferred embodiment of the method, the curing is performed using a portable UV curing unit, such as a hand-held UV lamp.
It is noted that the above embodiments and aspects of the method may be combined with each other.
Brief Description of Drawings
The accompanying drawings illustrate several aspects of the present invention and together with the detailed description serve to explain the principles of the invention. In the drawings:
FIG. 1: is a schematic perspective view of a wall covered with a wall covering panel;
FIG. 2: is an illustration of the application of a UV curable paste over the joint between adjacent panels of the wall of fig. 1;
FIG. 3: is a schematic representation of removing excess UV curable paste;
FIG. 4: is an illustration of the curing of the UV curable paste in the joint.
Description of The Preferred Embodiment
Fig. 1 shows a wall to which a wall covering element 10 has been fixed. The wall covering element 10 is a relatively large and rigid panel. The panels may have a uniform structure (i.e. consisting of a single layer of flooring material) or a non-uniform structure (i.e. consisting of a plurality of separate layers which are themselves identifiable). The type of fixing of the wall covering element 10 to the substrate is not important: the wall covering element 10 may be glued, screwed or otherwise mounted to the substrate. The term "substrate" herein refers to the wall material located directly behind the wall covering element 10.
The seams 12 extend between adjacent wall covering elements 10. In the shown illustration, the length of the wall covering element corresponds to the height of the wall surface to be covered, so that only vertically extending seams are visible. Although it may be preferable in terms of ease of installation to provide a wall covering element 10 that is long enough to cover the entire height of the wall, it is not excluded that shorter wall covering elements 10 may be used. In the latter case, there will also be horizontal seams. Generally, the shape and orientation of the seam depends on the wall covering element used. Thus, the invention is not limited to horizontal and/or vertical seams, but is equally applicable to wall coverings having slanted seams, curved seams, zigzag seams, and the like.
With the wall covering element 10 in place, a UV curable sealant paste 14 is applied over the seam 12 and into the seam 12. This may be done with a paint gun (applicator gun)16, as illustrated in fig. 2, or with other tools, such as with a putty knife, brush, cloth, selected according to the consistency of the paste 14.
Thereafter, any excess sealant paste is removed (fig. 3). This may be done with a cloth 18 as illustrated, or a putty knife or any other suitable tool. After removal of the excess sealant, the sealant remains present only in the small gaps between the side edges of the wall covering element 10, while the visible surface of the wall covering element 10 is substantially free of sealant. In fig. 3 and 4, the joint 12 filled with uncured sealant paste 14 is indicated by dashed lines.
Finally, as illustrated in fig. 4, a hand-held UV lamp 20 is used to cure the UV curable sealant paste 14. The hand-held UV lamp 20 is moved along the seam 12 filled with the sealant paste 14 so that the seam 12 is barely visible. The UV lamp 20 is moved at a speed that results in the desired radiation dose and thus in a sufficient degree of curing. In fig. 4, the UV lamp 20 is moved downward, but it may be moved upward. Curing may be accomplished in a single pass or in multiple passes of the UV lamp. It may be worth noting that the joint 12 may already be barely visible when the sealant paste 14 in the joint 12 is still uncured, so that UV curing may have no or only a minor effect on the visibility of the joint itself compared to what may be suggested superficially in fig. 4. The visibility of the seam 12 depends to some extent on its width: the wider the seam, the more visible it can be. Other parameters may also have an effect on seam visibility, such as the design of decorative surfaces. Discontinuities in the design can result in perceptible seams. However, one advantage of the present invention is that the sealant does not make the seams of the wall covering more visible than the decorative surface design is intended.
Examples
Rigid PVC shingles (wall panels) were glued to the substrate using double-sided adhesive tape. The width of the seam between adjacent panels amounts to between 0.5mm and 1.5 mm. The edges along the seam were wiped clean with an aqueous ethanol solution. The UV curable paste was then applied to the seam using a lint-free cloth (lint). The UV curable paste had the following composition:
after application of the UV curable paste, the joint was inspected and excess UV curable paste was removed with a clean lint free cloth.
Curing was performed using a portable LED UV lamp.
Although specific embodiments have been described in detail herein, it will be appreciated by those skilled in the art that various modifications and alternatives to those details could be developed in light of the overall teachings of the disclosure. Accordingly, the particular arrangements disclosed are meant to be illustrative only and not limiting as to the scope of the invention which is to be given the full breadth of the claims appended and any and all equivalents thereof.
Claims (18)
1. A method for installing a decorative surface covering, comprising:
the surface covering element is arranged on the substrate,
a UV curable paste is applied to the joint between adjacent surface covering elements,
if there is an excess of UV curable paste, removing the excess UV curable paste, and
curing the UV curable paste with UV light.
2. The method of claim 1, wherein the UV curable paste comprises an acrylate resin.
3. The method of claim 2, wherein the UV curable paste comprises a urethane acrylate resin.
4. The method of claim 2 or 3, wherein the UV curable paste further comprises a photoinitiator and a filler material.
5. The method of claim 4, wherein the filler material comprises colloidal silica.
6. The method of claim 5, wherein the UV curable paste comprises from 50 to 85 wt.% of an acrylate resin or a urethane acrylate resin, from 10 to 30 wt.% of colloidal silica, and from 5 to 20 wt.% of a photoinitiator.
7. The method of any one of claims 1 to 6, wherein the decorative surface covering is a wall covering.
8. The method of any one of claims 1 to 6, wherein the decorative covering is a floor covering.
9. The method of any one of claims 1 to 8, wherein the UV curable paste is transparent.
10. The method of any one of claims 1 to 9, wherein edges of the surface covering elements facing each other at the seam are cleaned prior to applying the UV curable paste.
11. The method of any one of claims 1 to 10, wherein the excess UV curable paste is removed by wiping off the excess UV curable paste with a cloth.
12. The method of any one of claims 1 to 11, wherein the surface covering element is a rigid element having a structural core composed of a thermoplastic with a plasticizer content of less than 5% by weight.
13. The method of claim 12, wherein the thermoplastic is polyvinyl chloride.
14. The method of any of claims 1-13, wherein the application of the UV curable paste is performed only locally on the seam.
15. The method of any one of claims 1 to 14, wherein the surface covering element has a thickness in the range of from 1mm to 20mm, preferably from 2mm to 15 mm.
16. The method of any one of claims 1 to 15, wherein the seam between adjacent surface covering elements has a maximum width of 2mm, preferably 1.5mm and even more preferably 1 mm.
17. The method of any one of claims 1 to 16, wherein the surface covering element is a panel having a length in the range of from 1m to 4m, preferably from 2m to 3m, and a width in the range of from 0.4m to 1.5m, preferably from 0.6m to 1.2 m.
18. The method of any one of claims 1 to 17, wherein the curing is performed with a portable UV curing unit.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636904.8A CN111379392A (en) | 2018-12-29 | 2018-12-29 | Method for mounting decorative wall or floor coverings |
| EP19812765.6A EP3902664A1 (en) | 2018-12-29 | 2019-11-27 | Decorative wall or floor covering installation method |
| PCT/EP2019/082749 WO2020135964A1 (en) | 2018-12-29 | 2019-11-27 | Decorative wall or floor covering installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811636904.8A CN111379392A (en) | 2018-12-29 | 2018-12-29 | Method for mounting decorative wall or floor coverings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111379392A true CN111379392A (en) | 2020-07-07 |
Family
ID=68731993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811636904.8A Pending CN111379392A (en) | 2018-12-29 | 2018-12-29 | Method for mounting decorative wall or floor coverings |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3902664A1 (en) |
| CN (1) | CN111379392A (en) |
| WO (1) | WO2020135964A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021236994A1 (en) * | 2020-05-20 | 2021-11-25 | Afi Licensing Llc | System and method for seams in resilient surface covering |
| CN115595110A (en) * | 2021-07-07 | 2023-01-13 | 得嘉亚太（上海）管理有限公司（Cn） | Method for joint curing of elastic floor |
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| JP3388960B2 (en) | 1995-09-29 | 2003-03-24 | タキロン株式会社 | Floor material seam construction method |
| US9938399B2 (en) | 2007-11-14 | 2018-04-10 | Tarkett Sas | Weld seam for ground coating |
| US9956723B2 (en) | 2015-10-20 | 2018-05-01 | Toli Corporation | Method for sealing a joint |
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- 2018-12-29 CN CN201811636904.8A patent/CN111379392A/en active Pending
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- 2019-11-27 EP EP19812765.6A patent/EP3902664A1/en active Pending
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| EP0496682A1 (en) * | 1991-01-22 | 1992-07-29 | Platres Lafarge | Stucco for joints |
| JP2001234626A (en) * | 2000-02-22 | 2001-08-31 | Danto Corp | Tiled floor and construction method for it |
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| Publication number | Publication date |
|---|---|
| WO2020135964A1 (en) | 2020-07-02 |
| EP3902664A1 (en) | 2021-11-03 |
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