WO2003002484A1 - Coating composition for a ceramic article and use in repairing defects in glazed ceramic articles - Google Patents
Coating composition for a ceramic article and use in repairing defects in glazed ceramic articles Download PDFInfo
- Publication number
- WO2003002484A1 WO2003002484A1 PCT/CA2001/000940 CA0100940W WO03002484A1 WO 2003002484 A1 WO2003002484 A1 WO 2003002484A1 CA 0100940 W CA0100940 W CA 0100940W WO 03002484 A1 WO03002484 A1 WO 03002484A1
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- WO
- WIPO (PCT)
- Prior art keywords
- coating composition
- composition
- weight
- percent
- radiation curable
- Prior art date
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
- C04B41/48—Macromolecular compounds
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/82—Coating or impregnation with organic materials
- C04B41/83—Macromolecular compounds
-
- 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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/89—Coating or impregnation for obtaining at least two superposed coatings having different compositions
-
- 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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
- C09D175/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
-
- 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
- C04B2111/72—Repairing or restoring existing buildings or building materials
Definitions
- the present invention relates to coating compositions applied to ceramic substrates and the method by which they are applied.
- Vitreous glazes are typically applied to ceramic articles to enhance their appearance
- the ceramic article is then subjected to a high temperature firing process
- the resultant glazed coating may possess any one of several kinds of surface defects.
- the coating may contain voids and
- U.S. Patent 2,826,508 discloses a method of repairing surface defects of
- the present invention provides an improved coating composition for use
- the present invention provides a coating
- composition for application to a ceramic substrate comprising: a radiation curable
- the hydroxide can be refined from gibbsite.
- the aluminum hydroxide can be
- the radiation curable oligomer can be a polyether acrylate or an urethane acrylate. Suitable polyether
- acrylates include those characterized by a viscosity of greater than 220 mPa/s.
- the coating composition can include substantially no monomer.
- Suitable fillers include aluminum oxide, barium sulfate, or magnesium silicate.
- coating composition is cured by ultraviolet light, a photoinitiator blend
- the present invention provides a coating composition
- a ceramic substrate for applications to a ceramic substrate comprising: a binder, having a radiation curable oligomer and an extender; and a pigment, having aluminum hydroxide and titanium dioxide, wherein the pigment and the binder are combined in a ratio
- the present invention provides a coating composition
- composition of a polyether acrylate
- composition of barium sulfate
- composition of magnesium silicate
- composition of titanium dioxide
- the present invention provides a coating composition
- a radiation curable oligomer for application to a ceramic substrate comprising: a radiation curable oligomer, an extender, and a colourant.
- the colourant can be pearlescent pigment or tinting
- the radiation curable oligomer can be a polyether acrylate or an urethane acrylate.
- Suitable polyether acrylates include those characterized by a viscosity
- the coating composition can include substantially no monomer.
- Suitable fillers include aluminum oxide, barium sulfate, or
- magnesium silicate is cured by ultraviolet light
- a photoinitiator blend comprising an aromatic ketone and phosphine oxide can further be provided.
- the present invention provides a coating composition for application to a ceramic substrate comprising: a binder, having
- the present invention provides a coating
- composition for application to a ceramic substrate comprising:
- composition of a polyether acrylate
- composition of barium sulfate
- magnesium silicate from about 15 to about 20 percent by weight, based on the total weight of the composition, of magnesium silicate
- composition of a colourant; from about 0.25 to about 2 percent by weight, based on the total weight of the composition, of phosphine oxide;
- the present invention provides a coating composition for application to a ceramic substrate comprising an undercoat and a clear
- the undercoat comprises a radiation curable oligomer, an extender, aluminum hydroxide and titanium dioxide, and wherein the topcoat
- the present invention provides a coating
- composition for application to a ceramic substrate comprising an undercoat
- a clear topcoat wherein the undercoat comprises a radiation curable oligomer, an
- topcoat comprises an urethane acrylate
- the present invention provides a method of repairing
- a surface defect on a glazed ceramic article comprising the steps of coating or
- titanium dioxide and curing the composition with an energy source.
- the present invention provides a method of repairing a surface defect on a glazed ceramic article comprising the steps of coating or hiding the surface defect with an undercoat comprising a radiation curable
- undercoat with a first energy source applying a topcoat to the cured undercoat, the topcoat including an urethane acrylate oligomer and a hydrocarbon acrylate dilment, and curing the topcoat with a second energy source.
- first and second energy sources applying a topcoat to the cured undercoat, the topcoat including an urethane acrylate oligomer and a hydrocarbon acrylate dilment, and curing the topcoat with a second energy source.
- energy sources can be ultraviolet light.
- the present invention provides a method of repairing
- a surface defect on a glazed ceramic article comprising the steps of coating or
- an undercoat comprising a radiation curable oligomer, an extender and a colourant, curing the undercoat with a first energy
- topcoat to the undercoat, the topcoat including an urethane
- the first and second energy sources can be ultraviolet
- the present invention provides a white coating composition
- a white coating composition comprising
- a radiation curable oligomer a radiation curable oligomer, an extender or filler, aluminum hydroxide and
- the radiation curable oligomer is a polyether acrylate
- the radiation curable oligomer is a polyether
- the coating composition includes
- Suitable extenders or fillers include barium sulfate, magnesium silicate, and silica oxides. The extenders or fillers enhance the optical effect of the
- the aluminum hydroxide is refined from gibbsite.
- gibbsite is analogous to the basic structure of micas.
- the gibbsite structure is formed of stacked sheets of linked octahedrons of aluminum
- the aluminum hydroxide is characterized by a particle size
- the titanium dioxide is of the rutile grade. Titanium dioxide
- the white coating composition is to be cured by ultraviolet light
- the photoinitiator includes a blend of an aromatic ketone and phosphine oxide.
- the aromatic ketone can include benzophenone,
- the phosphine oxide is provided to obtain desired
- a cationic curing agent comprising iodonium or sulfonium salts
- the coating composition could also be cured using excimer laser, requiring the coating composition to include excimer laser
- the coating composition can be cured using electron beam technology, which would altogether eliminate the necessity for a photoinitiator.
- the coating composition could include a dispersant.
- dispersant includes solutions of polycarboxylic acid salt of polyamine amides or
- the dispersant could also include any of solutions of alkyl-ammonium
- salt of an acidic polymer solutions of salt of unsaturated polyamine amide and lower molecular weight acid polymer, solutions of salt of polyamine amides and
- alkanolammonium salt of an unsaturated fatty acid and solutions of unsaturated acidic polycarboxylic acid polyester.
- the white coating composition of the present invention is a white coating composition of the present.
- invention comprises from about 55 to about 65 percent by weight, based on the total weight of the composition, of a polyether acrylate, from about 0.25 to about
- dispersant from about 10 to about 20 percent by weight, based on the total weight
- composition of barium sulfate, from about 10 to about 20 percent by
- magnesium silicate from about 0.5 to about 20 percent by weight, based on the total weight of the
- composition of aluminum hydroxide, from about 3 to about 6 percent by weight,
- titanium dioxide based on the total weight of the composition, from about 0.25
- phosphine oxide and from about 0.25 to about 2 percent by weight, based on the
- the white coating composition of the present invention is a white coating composition of the present invention.
- the invention comprises a binder and a pigment.
- the pigment includes a radiation
- the pigment includes aluminum
- the binder can also include a photoinitiator
- the pigment and the binder are combined in a ratio in
- a coloured coating composition is provided
- the radiation curable oligomer is a polyether acrylate or urethane acrylate. More preferably, the radiation curable oligomer is a polyether
- the coating composition includes
- Suitable extenders or fillers include barium sulfate, magnesium silicate, and silica oxides.
- the colourant is used to impart colour to the coating composition.
- Acceptable colourants include pearlescent pigments. Suitable pearlescent
- pigments are mica coated with an oxide from the group including TiO 2 , ZrO 2 , SnO 2 , ZnO, Fe 2 O 3 , Cr 2 O 3 and N 2 O 5 , or mixtures of two or more of said oxides.
- mice as used herein is an all encompassing term for a class of naturally occurring
- mica examples include muscovite, phlogopite and biotite.
- the mica particles are
- Acceptable pearlescent pigments include the AFFLAIRTM line of pearlescent
- pigments manufactured by BDH Chemicals including, AFFLAIRTM 120, AFFLAIRTM 121, AFFLAIRTM 163, AFFLAIRTM 205, AFFLATRTM 215 and
- AFFLAIRTM 225 Other acceptable pearlescent pigments include the
- tinting paste comprising pigments
- the white coating composition is to be cured by ultraviolet light
- the photoinitiator includes a blend of an aromatic compound
- the aromatic ketone can include benzophenone,
- the aromatic ketone is a surface curing agent.
- the phosphine oxide is provided to obtain desired
- a cationic curing agent comprising iodonium or sulfonium salts
- the coating composition could also be used as a photoinitiator where the coating composition is cured by ultraviolet light.
- the coating composition could also be cured using excimer laser, requiring the coating composition to include excimer laser
- composition can be cured using electron beam technology, which would
- the coating composition could include a dispersant.
- preferred dispersant includes solutions of polycarboxylic acid salt of polyamine amides or solutions of high molecular weight block co-polymers with pigment
- a suitable dispersant could also include any of solutions of alkyl-
- ammonium salt of an acidic polymer solutions of salt of unsaturated polyamine
- alkanolammonium salt of an unsaturated fatty acid and solutions of unsaturated
- present invention comprises from about 55 to about 65 percent by weight, based
- a dispersant from about 15 to about 20 percent by weight, based on the total weight of the composition, of barium sulfate, from about 15 to about 20 percent
- magnesium silicate by weight, based on the total weight of the composition, of magnesium silicate
- phosphine oxide on the total weight of the composition, of phosphine oxide, and from about 0.25 to about 2 percent by weight, based on the total weight of the composition, of
- the coloured coating composition of the present invention comprises a binder and a pigment.
- the pigment includes a radiation
- the curable oligomer and an extender or filler.
- the pigment includes aluminum hydroxide and titanium dioxide.
- the binder can also include a photoinitiator
- composition can be combined in a ratio in the range of from about 3 : 1 to about
- the pigment and the binder are combined in a ratio in the range of from about 4:1 to about 6:1 by volume. Even more
- the pigment and the binder are combined in a ratio of about 4:1 by
- the coating composition comprises an undercoat
- clear topcoat comprises an urethane acrylate oligomer and a hydrocarbon acrylate
- a photoinitiator can be provided.
- the aromatic ketone includes a blend of an aromatic ketone and phosphine oxide.
- the aromatic ketone includes a blend of an aromatic ketone and phosphine oxide.
- ketone can include benzophenone, methyl-o-benzoyl benzoate and 2-isopropyl thioxanthone.
- the aromatic ketone is a surface curing agent.
- a cationic curing agent comprising iodonium or sulfonium salts, could also be used as a photoinitiator
- the coating composition is cured by ultraviolet light.
- the coating composition is cured by ultraviolet light.
- coating composition could also be cured using excimer laser, requiring the coating composition to include excimer laser compatible photoinitiator such as
- the coating composition can be cured using electron
- the topcoat comprises from about 56 to about
- the topcoat also comprises from about 5 to about 40 percent
- composition of the composition, of phosphine oxide, and from about 0.25 to about 2
- the present invention also provides a method of repairing surface defects
- the glazed ceramic article has
- the method comprises the steps of (i) coating or hiding a
- the white coating composition can comprise any of the previously
- the coloured coating composition can comprise any of the previously
- the energy source can be an ultraviolet light source, an electron beam, an
- the white or coloured coating composition comprises a photoinitiator including a blend of an aromatic ketone and phosphine oxide.
- Another suitable photoinitiator in this case, is a catonic curing agent.
- the white or coloured coating composition must be excimer laser, the white or coloured coating composition must be used.
- an excimer laser sensitive photoinitiator such as a benzoketal.
- the white or coloured coating composition requires no photoinitiator.
- the present invention provides a method of
- the coloured coating composition can comprise any of the previously described embodiments of the coloured coating composition of the present invention.
- the clear coating composition can comprise any of the previously described embodiments of the coloured coating composition of the present invention.
- the glazed ceramic article has been previously fired.
- a coating composition comprising the compounds identified in Table 1 was applied to surface imperfections on a glazed ceramic substrate.
- the coating composition was cured using a Fusion System Model 450
- a coating composition was formulated comprising 98 percent by weight, based on the total weight of the composition, of an oligomer, 1 percent by weight,
- phosphine oxide based on the total weight of the composition, of phosphine oxide, and 1 percent by weight, based on the total weight of the composition, of alpha-hydroxy ketone.
- the coatings were tested for adhesion, discolouration, thermal stability,
- a polyether acrylate would appear to be a suitable candidate.
- a polyether acrylate characterized by a viscosity between 220 cps and 400 cps would appear to be particularly suitable.
- composition of the present invention is a composition of the present invention.
- a coating composition was formulated comprising 60 percent by weight,
- filler 1 percent by weight, based on the total weight of the composition, of
- composition of alpha hydroxy ketone.
- fillers were tested, namely:
- silicate hydrated aluminium silicate, aluminium oxide, barium sulfate, and
- magnesium silicate appear to be acceptable candidates for the coating composition of the present invention.
- a coating composition was formulated comprising 60 percent by weight,
- silicate and 1.0 to 2.5 percent by weight, based on the total weight of the
- composition of a photoinitiator.
- photoinitiators were tested, including
- the titanium dioxide used was of the rutile grade.
- composition and with a view to matching the aesthetic appearance of a glaze.
- titanium dioxide namely between 5 and 15 weight percent.
- titanium dioxide were applied to a ceramic substrate and cured using an
- a second formulation was created, comprising the compounds identified
- Each of the coating compositions was applied to a ceramic substrate and
- the cured coating compositions containing the aluminum hydroxide, were found to resemble the appearance of ceramic glaze. In comparison to the compositions defined in Table 5, the coating compositions
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CA2001/000940 WO2003002484A1 (en) | 2001-06-29 | 2001-06-29 | Coating composition for a ceramic article and use in repairing defects in glazed ceramic articles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CA2001/000940 WO2003002484A1 (en) | 2001-06-29 | 2001-06-29 | Coating composition for a ceramic article and use in repairing defects in glazed ceramic articles |
Publications (1)
Publication Number | Publication Date |
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WO2003002484A1 true WO2003002484A1 (en) | 2003-01-09 |
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Family Applications (1)
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PCT/CA2001/000940 WO2003002484A1 (en) | 2001-06-29 | 2001-06-29 | Coating composition for a ceramic article and use in repairing defects in glazed ceramic articles |
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WO (1) | WO2003002484A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2826508A (en) | 1956-02-06 | 1958-03-11 | Decker Gertrude Giles | Porcelain repairing method and composition |
US4457766A (en) * | 1980-10-08 | 1984-07-03 | Kennecott Corporation | Resin systems for high energy electron curable resin coated webs |
US4900763A (en) * | 1988-02-26 | 1990-02-13 | Ciba-Geigy Corporation | Ultraviolet radiation curable vehicles |
JPH03232571A (en) * | 1990-02-08 | 1991-10-16 | Dainippon Toryo Co Ltd | Formation of film on plastic molding |
EP0553043A1 (en) * | 1992-01-23 | 1993-07-28 | Produits Chimiques A. Blanchon | Mastic for resealing and/or smoothing of a support |
-
2001
- 2001-06-29 WO PCT/CA2001/000940 patent/WO2003002484A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2826508A (en) | 1956-02-06 | 1958-03-11 | Decker Gertrude Giles | Porcelain repairing method and composition |
US4457766A (en) * | 1980-10-08 | 1984-07-03 | Kennecott Corporation | Resin systems for high energy electron curable resin coated webs |
US4900763A (en) * | 1988-02-26 | 1990-02-13 | Ciba-Geigy Corporation | Ultraviolet radiation curable vehicles |
JPH03232571A (en) * | 1990-02-08 | 1991-10-16 | Dainippon Toryo Co Ltd | Formation of film on plastic molding |
EP0553043A1 (en) * | 1992-01-23 | 1993-07-28 | Produits Chimiques A. Blanchon | Mastic for resealing and/or smoothing of a support |
Non-Patent Citations (1)
Title |
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DATABASE WPI Section Ch Week 199148, Derwent World Patents Index; Class A32, AN 1991-349052, XP002189334 * |
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