GB2462668A - Coating compositions containing UV tracers - Google Patents
Coating compositions containing UV tracers Download PDFInfo
- Publication number
- GB2462668A GB2462668A GB0812466A GB0812466A GB2462668A GB 2462668 A GB2462668 A GB 2462668A GB 0812466 A GB0812466 A GB 0812466A GB 0812466 A GB0812466 A GB 0812466A GB 2462668 A GB2462668 A GB 2462668A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating composition
- coating
- substrate
- tracer
- suitably
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000008199 coating composition Substances 0.000 title claims abstract description 174
- 238000000576 coating method Methods 0.000 claims abstract description 102
- 239000011248 coating agent Substances 0.000 claims abstract description 98
- 239000000758 substrate Substances 0.000 claims abstract description 94
- 239000000203 mixture Substances 0.000 claims abstract description 82
- 239000000700 radioactive tracer Substances 0.000 claims abstract description 73
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 21
- -1 benzoxazole compound Chemical class 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 70
- 230000005855 radiation Effects 0.000 claims description 44
- 239000011253 protective coating Substances 0.000 claims description 22
- 239000002904 solvent Substances 0.000 claims description 21
- 239000003921 oil Substances 0.000 claims description 19
- 235000019198 oils Nutrition 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims description 17
- 239000010985 leather Substances 0.000 claims description 15
- 238000005498 polishing Methods 0.000 claims description 9
- 239000004215 Carbon black (E152) Substances 0.000 claims description 7
- 239000006096 absorbing agent Substances 0.000 claims description 7
- 229930195733 hydrocarbon Natural products 0.000 claims description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims description 7
- 150000001412 amines Chemical class 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000004611 light stabiliser Substances 0.000 claims description 6
- 238000007605 air drying Methods 0.000 claims description 5
- 238000000935 solvent evaporation Methods 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 235000015112 vegetable and seed oil Nutrition 0.000 claims description 4
- 239000008158 vegetable oil Substances 0.000 claims description 4
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- AOMQPPIAFGXCAY-UHFFFAOYSA-N 1,3-benzoxazole;stilbene Chemical compound C1=CC=C2OC=NC2=C1.C=1C=CC=CC=1C=CC1=CC=CC=C1 AOMQPPIAFGXCAY-UHFFFAOYSA-N 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000002516 radical scavenger Substances 0.000 claims description 2
- 229920001410 Microfiber Polymers 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- UQEAIHBTYFGYIE-UHFFFAOYSA-N hexamethyldisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)C UQEAIHBTYFGYIE-UHFFFAOYSA-N 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- YGUMVDWOQQJBGA-VAWYXSNFSA-N 5-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-[(e)-2-[4-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-sulfophenyl]ethenyl]benzenesulfonic acid Chemical compound C=1C=C(\C=C\C=2C(=CC(NC=3N=C(N=C(NC=4C=CC=CC=4)N=3)N3CCOCC3)=CC=2)S(O)(=O)=O)C(S(=O)(=O)O)=CC=1NC(N=C(N=1)N2CCOCC2)=NC=1NC1=CC=CC=C1 YGUMVDWOQQJBGA-VAWYXSNFSA-N 0.000 description 2
- AIXZBGVLNVRQSS-UHFFFAOYSA-N 5-tert-butyl-2-[5-(5-tert-butyl-1,3-benzoxazol-2-yl)thiophen-2-yl]-1,3-benzoxazole Chemical compound CC(C)(C)C1=CC=C2OC(C3=CC=C(S3)C=3OC4=CC=C(C=C4N=3)C(C)(C)C)=NC2=C1 AIXZBGVLNVRQSS-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 230000000254 damaging effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000001846 repelling effect Effects 0.000 description 2
- 150000000183 1,3-benzoxazoles Chemical group 0.000 description 1
- 229920004511 Dow Corning® 200 Fluid Polymers 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/35—Heterocyclic compounds having nitrogen in the ring having also oxygen in the ring
- C08K5/353—Five-membered rings
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/22—Luminous paints
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/48—Stabilisers against degradation by oxygen, light or heat
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
There is provided a coating composition (e.g. a glaze composition for protecting vehicle paintwork) comprising a UV tracer, said composition being adapted to provide a coating which fluoresces when exposed to UV electromagnetic radiation. Coverage of the coating composition on a substrate can be assessed using the tracer, which may be an optical brightener such as a benzoxazole compound.
Description
IMPROVEMENTS IN AND RELATING TO COATING COMPOSITIONS
FIELD OF INVENTION
The present invention relates to coating compositions, partcu1ar1y though riot exclusively to coatirig compositions for protecting painted surfaces or fabric or leather surfaces.
BACKGROUND TO THE INVENTION
Coating compositions for application to a substrate are well known. It is known for example to apply a coating composition to a painted surface, such as the paintwork of a vehicle, to protect the painted surface from damage, for example from damaging effects of external factors such as weather, pollution or solar UV radiation.
One known method of protecting a painted surface by applying a coating composition thereto comprises polishing the surface with an emulsion polish so as to clean the surface. A coating composition comprising a glaze composition is then applied to the polished surface. The glaze composition is then left to cure so as to provide a substantially transparent protective glaze overlying the painted surface.
It is also known to protect fabric and/or leather surfaces by applying a coating composition thereto to provide a substantially transparent protective coating which can repel soil and/or liquids such as oil, water and alcohol.
Known coating compositions may provide effective protection to an underlying substrate they have coated but the present inventors have recognised a previously unrecognised problem with such compositions and the use thereof.
Accordingly, the present invention aims to address at least one disadvantage associated with the prior art whether discussed herein or otherwise.
SUMMARY OF INVENTION
According to a first aspect of the present invention there is provided a coating composition comprising a UV tracer, said composition being adapted to provide a coating which fluoresces when exposed to UV electromagnetic radiation.
According to a second aspect of the present invention there is provided a method of providing a substrate with a coating, the method comprising applying a coating composition comprising a UV tracer onto the substrate to provide a coating which fluoresces when exposed to UV electromagnetic radiation.
According to a third aspect of the present invention there is provided a coating composition comprising a tracer, said composition being adapted to provide a coating whose coverage on a substrate can be assessed using the tracer.
According to a fourth aspect of the present invention there is provided a method of providing a substrate with a coating, the method comprising applying a coating composition comprising a tracer onto the substrate to provide a coating whose coverage on the substrate can be assessed using the tracer.
Suitably, known coating compositions and methods of coating which the present invention aims to improve upon are those coating compositions intended to protect a substrate surface without masking and/or detracting from the appearance of that substrate surface. Such compositions are thus suitably arranged to produce a substantially transparent coating. Suitably, coating compositions with which the invention is particularly, but not exclusively, concerned are glaze compositions for protecting vehicle paintwork.
The present inventors have recognised the previously unrecognised problem that it is very difficult to check the coverage of a substantially transparent coating composition on a substrate surface. That may have two disadvantages. Firstly, areas of a surface may be left uncoated and the absence of a coating may only come to light once an uncoated and so unprotected area of the surface is damaged. Secondly, where the coating is performed for a person by a third party that person may have no way of assessing the quality of the coating or even that it has been performed at all.
Having recognised the above problem with known coating compositions and methods of coating the present inventors have devised an inventive solution to the problem.
Suitably, by incorporating a tracer, suitably a UV tracer, into a coating composition it is possible to provide means to check the coverage of the composition on a substrate whilst still providing a coating which is substantially transparent and so does not mask and/or detract from the appearance of the substrate.
Suitably, the first aspect of the present invention provides a coating composition comprising a UV (ultra violet) tracer, said composition being adapted to provide a protective coating which is substantially transparent and which fluoresces when exposed to UV (ultra violet) electromagnetic radiation.
By "protective coating" it is meant a coating which reduces or prevents damaging effects of external factors such as for example weather, pollution, solar UV radiation or soiling on an underlying substrate.
Suitably, as used herein references to the coating being "substantially transparent" mean that it allows transmittal of visible light. In use, the coating composition may thus allow a substrate for which it provides a coating to be viewed. In use, the coating composition may substantially not mask or otherwise detract from the appearance of a substrate for which it provides a coating. The coating composition may absorb some visible light and so may not be completely transparent.
Suitably, the UV tracer comprises a compound which fluoresces when exposed to UV electromagnetic radiation.
Suitably, the UV tracer consists of a compound which fluoresces when exposed to UV electromagnetic radiation.
Suitably, the UV tracer absorbs UV electromagnetic radiation and emits e]ectromagnetic radiation as visib]e light.
Suitably, the UV tracer produces a glow, suitably a blue/violet glow, when exposed to a UV electromagnetic radiation source such as a UV lamp. Suitably, the UV tracer produces a glow when exposed to a source of near UV electromagnetic radiation.
The UV tracer may absorb UV radiation from solar radiation and emit visible light but as the coating composition will also be exposed to visible light from the solar radiation the visible light emitted by the tracer on exposure to solar radiation may be substantially imperceptible to the human eye. The coating provided by the composition may thus appear substantially transparent under solar radiation.
Suitably, when exposed to an artificial source of UV radiation the UV tracer absorbs UV radiation and emits visible light such that the emitted visible light is perceptible to the human eye. The coating composition may thus appear to glow, suitably a blue/violet colour, when exposed to an artificial source of UV radiation which may allow coated areas of a substrate to be identified.
Suitably, "visible light" as used herein refers to electromagnetic radiation having a wavelength of between 400 and 700nm which is a wavelength range visible to most humans.
The UV tracer may emit radiation having a wavelength of 400nm or greater, for example 425nm or greater. Suitably, 50% or more of the emitted radiation may have a wavelength of between 400 and 700nm, suitably between 425 and 600nm.
Suitably, "UV electromagnetic radiation" and "UV radiation" as used herein refers to electromagnetic radiation having a wavelength between 400nm and lOOnm.
Suitably, "near UV electromagnetic radiation" as used herein refers to electromagnetic radiation having a wavelength of between 400nm and 300nm.
The UV tracer may absorb radiation having a wavelength of between 275nm and 400nm, suitably between 300 and 400nm.
Suitably, the UV tracer absorbs radiation having a wavelength of between 330nm and 400nm and emits radiation having a wavelength of between 400nm and 550nm.
The UV tracer may absorb radiation having a wavelength of 400nm or greater but may emit more radiation than it absorbs at that wavelength. The UV tracer may emit radiation having a wavelength of less than 400nm but may also emit radiation having a wavelength of 400nm or greater.
Suitably, the coating composition is adapted to fluoresce when exposed to a UV radiation source which emits radiation at a wavelength of between 300nm and 400nm.
Suitably, the UV tracer comprises an optical brightener.
Suitably, the UV tracer consists of an optical brightener.
Suitably, the UV tracer comprises a benzoxazole compound and/or a bis-ben:oxa:ole compCUflCt afl:j/Qr a thsc.phenedvi hensoxazole COf onnb and/or ttiottenedil bis-benzoxazole o OJ.Pp 00510.
Suitably, the UV tracer is selected from the group consisting of benzoxazoles, bis-berzoxazoles, t:i-.iopi-.enediyi. ben zoxa so lea and thi ophenedi vi isis-- 1,enz a xaz a lea Suitably, the UV tracer comprises a thiaphenediyl henzaxazale. Suitably, the liv tracer consists of a ti.i api-.ened.iy 1 benz oxaz ale Suitably, the UV tracer comprises 2,5-thiophenediylbis(5--tert-butyl-l,3-benzoxazole) . Suitably, the UV tracer consists of 2,5-thiophenediylbis(5-tert-butyl-1,3--benzoxazole) The tracer may comprise a stilbene benzoxazol.
Suitably, the composition comprises a UV tracer in an amount sufficient to cause a coating produced with the composition to fluoresce when exposed to a UV lamp, suitably a UV lamp having a power of 6watt or more.
Suitably, the composition comprises a UV tracer in an amount such that when a coating produced with the composition is exposed to solar radiation any fluorescence is substantially imperceptible to the human eye.
Suitably, the composition comprises the UV tracer in an amount of between 50g and 500g per 100 litres of composition, suitably between lOOg and 500g per 100 litres of composition, for example between 200g and 500g per 100 litres of composition, for example between 240g and 300g per 100 litres of composition. The composition may comprise UV tracer in an amount of at least 50g per 100 litres of composition, for example at least: bog; 150g; 200g; or 250g per 100 litres of composition. The composition may comprise UV tracer in an amount of no more than 500g per litre of composition, for example no more than: 450g; 400g; 350g; or 300g per 100 litres of composition.
Suitably, the coating composition is adapted to provide a substantially transparent coating to a substrate.
Suitably, the coating composition is adapted to provide a protective coating to a substrate. When applied to a substrate the coating composition may provide a coating which gives the substrate a glossy and/or shiny appearance.
Suitably, the coating composition is adapted to coat a painted surface. Suitably, the coating composition is adapted to provide a substantially transparent coating to a painted surface. Suitably, the coating composition is adapted to provide a protective coating to a painted surface. Suitably, the coating composition is adapted to provide a coating to a painted surface of a vehicle.
Suitably, the coating composition comprises a one part coating. Suitably, the coating composition comprises a one part coating for paint protection.
Suitably, the coating composition is adapted to coat a painted surface of a metal article. Suitably, the coating composition is adapted to provide a substantially transparent coating to a painted surface of a metal article. Suitably, the coating composition is adapted to provide a protective coating to a painted surface of a metal article.
Suitably, the coating composition comprises a glaze forming composition. Suitably, the coating composition comprises a glaze forming composition adapted to form a glaze on a painted surface.
Suitably, the coating composition comprises a composition which is adapted to cure after application to a substrate to produce a protective coating for the substrate.
Suitably, the coating composition comprises a glaze forming composition which is adapted to cure after application to a substrate to produce a protective glaze.
Suitably, the coating composition comprises a glaze forming composition which cures in ambient conditions.
Suitably, the coating composition comprises a solvent based composition which cures by solvent evaporation and air drying. Suitably, the coating composition comprises a composition which cures through exposure to oxygen in the air.
Suitably, the coating composition comprises a dearomatised solvent based one part coating for paint protection that cures by solvent evaporation and air drying.
Suitably, the coating composition comprises a solvent.
Suitably, the coating composition comprises a volatile solvent. Suitably, the coating composition comprises an aliphatic hydrocarbon solvent. Suitably, the coating composition comprises a solvent in an amount of between 80 litres and 99 litres per 100 litres of composition.
Suitably, the coating composition comprises an oil.
Suitably, the coating composition comprises a combination of oils. Suitably, the coating composition comprises a hydrocarbon oil. Suitably, the coating composition comprises a vegetable oil. Suitably, the vegetable oil comprises a drying oil. Suitably, the coating composition comprises a silicon oil. Suitably, the coating composition comprises a combination of one or more vegetable oils and one or more silicon oils. Suitably, the coating composition comprises oil(s) in an amount of between 1 litre and 5 litres per 100 litres of composition, for example between 2.5 litres and 5 litres per 100 litres of composition. Suitably, the coating composition comprises a drying oil. Suitably, the coating composition comprises a drying oil in an amount of between 0.5 litres and 1.5 litres per 100 litres of composition.
Suitably, the coating composition comprises a radical scavenger. Suitably, the coating composition comprises a hindered amine light stabiliser (HALS) Suitably, the coating composition comprises a UV-absorber.
Suitably, the coating composition comprises an oxalinide.
Suitably, the coating composition comprises a blend of hindered amine light stabilisers and UV-absorber.
Suitably, the coating composition comprises a blend of hindered amine light stabilisers UV-absorber in an amount of between 0.4Kg and 1Kg per 100 litres of composition.
Suitably, the coating composition comprises a chlorinated solvent. Suitably, the blend of hindered amine light stabilisers and UV-absorber is solubilised in the chlorinated solvent before combination with other components of the composition.
The coating composition may be adapted to coat a fabric and/or leather surface. Suitably, the coating composition is adapted to provide a substantially transparent coating to a fabric and/or leather surface. Suitably, the coating composition is adapted to provide a protective coating to a fabric and/or leather surface. Suitably, the coating composition is adapted to provide a coating to a fabric and/or leather surface of a vehicle.
Suitably, when adapted for fabric/leather coating the composition comprises a solvent. Suitably, the solvent is a volatile solvent and may be an aliphatic solvent, for example a dearomatised hydrocarbon. Suitably, the composition comprises solvent in an amount of between 80 and 99 litres per 100 litres of composition.
Suitably, when adapted for fabric/leather coating the composition comprises a soil and/or water and/or oil and/or alcohol repelling composition. Suitably, the composition comprises a synthetic isoparaffinic hydrocarbon. Suitably, the composition comprises a perfluorinated acrylic polymer. Suitably, the coating composition comprises a soil and/or water and/or oil and/or alcohol repelling composition in an amount of between 4 and 12 litres per 100 litres of coating composition. Suitably, the coating composition comprises a combination of a synthetic isoparaffinic hydrocarbon and a perfluorinated acrylic polymer, suitably in an amount of between 4 and 12 litres per 100 litres of coating composition.
Suitably, when adapted for fabric/leather coating the composition comprises a UV tracer in an amount of between 5Og and 200g per 100 litres of composition.
The first aspect may comprise any feature as described in relation to the second aspect hereafter.
Suitably, the second aspect of the present invention provides a method of providing a substrate with a protective coating, the method comprising applying a coating composition comprising a UV tracer onto the substrate to provide a protective coating which is substantially transparent and which fluoresces when exposed to UV electromagnetic radiation.
Suitably, the method comprises applying a composition according to the first aspect onto the substrate.
Suitably, the method comprises providing a substrate with a substantially transparent coating. Suitably, the method comprises providing a substrate with a protective coating.
The method may comprise providing a substrate with a coating which gives the substrate a glossy and/or shiny appearance.
Suitably, the method comprises providing a painted surface with a coating. Suitably, the method comprises providing a painted surface of a vehicle with a coating. Suitably, the method comprises providing a painted surface with a substantially transparent coating. Suitably, the method comprises providing a painted surface with a protective coating.
Suitably, the method comprises providing a protective glaze to a painted surface. Suitably, the method comprises providing a protective glaze to a painted surface of a vehicle.
Suitably, the method further comprises a step of checking the coating coverage on the substrate (hereafter checking step) by exposing the coating to UV radiation, suitably to near UV radiation to cause it to fluoresce.
Suitably, the checking step comprises assessing the coating on the substrate to identify any voids and/or uneven coverage.
Suitably, the checking step comprises exposing the coating to UV radiation to cause it to fluoresce and looking for any areas of a coated substrate which do not fluoresce or fluoresce less than other areas indicating that they have not been coated or have been coated to a lesser extent than other areas.
Suitably, the method comprises the further step of applying coating composition to any areas of a substrate which the checking step reveals have not been coated or have been insufficiently coated.
Suitably, the checking step comprises exposing the coating to UV radiation from an artificial source. Suitably, the checking step comprises exposing the coating to electromagnetic radiation having a wavelength between 300rim arid 400ram.
Suitably, the checking step comprises shining a lamp onto the coated substrate and which lamp emits radiation having a wavelength between 300nm and 400nm.
Suitably, the checking step uses a lamp which emits radiation having a wavelength of between 350nm and 375nm, for example around 365nm. Suitably the lamp and does not emit any radiation having a wavelength of 400nm or greater. Suitably, the lamp only emits radiation having a wavelength of 375nm or less.
Suitably, the checking step uses a lamp which has a power of at least 6 watts. Suitably the lamp comprises a hand held lamp.
Suitably, the checking step is performed with a UV lamp in an environment in which the UV lamp is substantially the only UV radiation source. The checking step may thus be performed in an area which is substantially unlit by sunlight. The checking step may be performed in an area that is substantially unlit.
Suitably, the method comprises cleaning a substrate prior to application of the coating composition to the substrate.
Suitably, the method comprises polishing a substrate prior to application of the coating composition to the substrate.
Suitably, the method comprises polishing a substrate with a polish, suitably an emulsion polish, prior to application of the coating composition.
Suitably, the method comprises polishing a substrate with a polish comprising a hydrocarbon solvent and a buffing component prior to application of the coating composition.
Suitably, the buffing component comprises coarse and fine particles.
Suitably, the method comprises polishing a substrate prior to the application of the coating composition in order to clean the surface of the substrate of any ingrained contamination.
Suitably, the method comprises polishing the substrate so as to remove polish from the substrate surface prior to the application of the coating composition. The majority of the coating composition may thus be applied directly onto the substrate rather than onto a layer of polish covering the substrate.
Suitably, the substrate surface is buffed clean, suitably using a microfiber cloth, prior to the application of the coating composition.
The method may comprise polishing a substrate to impart a positive charge thereto to assist the application and/or adhesion and/or bonding of the coating composition to the substrate.
Suitably, the coating composition is applied once the substrate has been polished.
Suitably the coating composition is applied by wiping it onto the substrate. Suitably, the coating composition is wiped on, allowed to begin to cure and then buffed to attempt to produce even coverage. Suitably, the composition is left to cure for around 15 minutes following application before being buffed. Suitably, the composition is buffed using a microfiber cloth.
Suitably, once the coating composition has been applied it is allowed to cure. Suitably, the coating composition is allowed to cure as a result of solvent evaporation and air drying.
Suitably, once the coating composition has been allowed to cure the coverage of the coating composition on the substrate is checked and suitably any voids or uneven coverage are then rectified.
The method may comprise providing a fabric and/or leather surface with a coating. Suitably, the method comprises providing a fabric and/or leather surface of a vehicle with a coating. Suitably, the method comprises providing a fabric and/or leather surface with a substantially transparent coating. Suitably, the method comprises providing a fabric and/or leather surface with a protective coating.
Suitably, the method uses a coating composition according to the first aspect.
The second aspect may comprise any feature as described in relation to the first aspect.
Suitably, according to a third aspect of the present invention there is provided a coating composition comprising a tracer, said composition being adapted to provide a protective coating which is substantially transparent and whose coverage on a substrate can be assessed using the tracer.
Suitably, the tracer comprises a UV tracer and the coverage on a substrate may be assessed using the tracer by exposing the coating to UV radiation to cause the tracer and thus the coating to fluoresce.
The coating composition of the third aspect may comprise any feature as described in relation to the first aspect.
Suitably, according to a fourth aspect of the present invention there is provided a method of providing a substrate with a protective coating, the method comprising applying a coating composition comprising a tracer onto the substrate to provide a protective coating which is substantially transparent and whose coverage on the substrate can be assessed using the tracer.
Suitably, the tracer comprises a UV tracer and the coverage on a substrate may be assessed using the tracer by exposing the coating to UV radiation to cause the tracer and thus the coating to fluoresce.
The coating method of the fourth aspect may comprise any feature as described in relation to the second aspect.
According to a fifth aspect of the present invention there is provided a coated article comprising a coating containing a tracer.
Suitably, the coating contains a UV tracer and the coating fluoresces when exposed to UV electromagnetic radiation.
Suitably, the coating comprises a transparent coating.
Suitably, the coating comprises a protective coating.
Suitably, the coated article comprises a vehicle.
Suitably the coating comprises a coating to a painted surface. Suitably, the coating comprises a coating to a painted surface of a vehicle.
Suitably, the coating comprises a coating formed with a composition according to the first aspect. The coating may comprise a coating formed with a composition according to the third aspect.
Suitably, the coating is applied according to a method of the second aspect. The coating may be applied according to the method of the fourth aspect.
The fifth aspect may comprise any feature as described in relation to the first and/or second and/or third and/or fourth aspect.
According to a sixth aspect of the present invention there is provided the use of a fluorescing compound as a UV tracer in a coating composition to allow the coverage of a coating produced by applying the coating composition to a substrate to be assessed by exposing the coating to UV radiation to cause the coating to fluoresce.
Suitably the fluorescing compound comprises an optical brightener. The fluorescing compound may comprise a benzoxazole compound and/or a bi---benzoxazoJ.e conipound and/or a thiophenodiyl beozoxazole compouflO anci/ or hicrhenedil hi s-hnn:oxazole compound.
The fourth aspect may comprise any feature as described in relation to the first and/or second and/or third and/or fourth and/or fifth aspects.
The present invention will now be illustrated by way of example with reference to the following preferred embodiments.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
A coating composition in accordance with the invention was prepared according to the following method: 1. 2 litres of Dow Corning 200 (TM) silicon oil (Dimethyly siloxane, trimethylsiloxy terminated available from Dow Corning) and 0.75 litres of a vegetable drying oil were dissolved in 96.3 litres of Exxsol D40 (TM) (an aliphatic hydrocarbon solvent available from Exxon Mobil) 2. 0.5Kg of Hostavin-3212 (TM) (a combination of HALS and UV-absorber in xylene available from Clariant) were combined with 0.5 litres of methylene chloride before combination with the oil solution.
3. 0.25kg of Tinopal OB (TM) (2,5-thiophenediylbis(5-tert--butyl-l-,3-benzoxazole) available from Ciba Speciality Chemicals) was then combined with the solution to produce the coating composition.
This composition comprised a composition suitable for coating a painted surface.
The coating composition prepared by the method was then applied to a substrate. The substrate comprised a painted surface of a metal sheet.
The coating composition was applied by wiping it on with a microfiber cloth after which the composition was allowed to cure as a result of solvent evaporation and air drying and then buffed with a microfiber cloth to provide a coating to the painted surface of the substrate.
Visual inspection showed that the coating composition produced a substantially transparent coating which allowed the painted surface of the substrate to be viewed through the coating. Although transparent the coating imparted a gloss such that coated areas of the substrate appeared beneficially slightly shinier.
The coated substrate was then exposed to UV radiation from a UV lamp which emitted radiation at a wavelength of around 365nm and had a power of at least 6W. When exposed to this radiation the coating fluoresced allowing the coverage of the coating on the substrate to be assessed for voids and uneven coverage.
A further coating composition in accordance with the invention was prepared according to the following method: 8 litres of Flexipel S11WS (TM) (a synthetic isoparaffinic hydrocarbon and perfluorinated acrylic polymer available form Innovative Chemical Technologies mc) were combined with 94 litres of Exxsol D60 (TM) (an aliphatic solvent available from Exxon Mobil) . To this was added 0.1Kg of Tinopal OB (TM) (2,5-thiophenediylbis(5-tert-butyl-1-,3-benzoxazole) available from Ciba Speciality Chemicals) to produce the coating composition.
This composition comprised a composition suitable for coating a fabric surface.
The coating composition prepared by the method was then applied to a substrate by spraying (non-aerosol) . The substrate comprised a fabric surface.
As with the first example, following application the coverage of the coating on the substrate was assessed using a UV lamp.
It will be appreciated that preferred embodiments of the present invention may provide one or more benefits over known coatings and coating methods.
Attention is directed to all papers and documents which are filed concurrently with or previous to this specification in connection with this application and which are open to public inspection with this specification, and the contents of all such papers and documents are incorporated herein by reference.
All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and/or all of the steps of any method or process so disclosed, may be combined in any combination, except combinations where at least some of such features and/or steps are mutually exclusive.
Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Thus, unless expressly stated otherwise, each feature disclosed is one example only of a generic series of equivalent or similar features.
The invention is not restricted to the details of the foregoing embodiment(s) . The invention extends to any novel one, or any novel combination, of the features
disclosed in this specification (including any
accompanying claims, abstract and drawings), or to any novel one, or any novel combination, of the steps of any method or process so disclosed.
Claims (49)
- CLAIMS1. A coating composition comprising a UV tracer, said composition being adapted to provide a coating which fluoresces when exposed to UV electromagnetic radiation.
- 2. A coating composition according to Claim 1, wherein the coating composition comprises a UV tracer, said composition being adapted to provide a protective coating which is substantially transparent and which fluoresces when exposed to UV electromagnetic radiation.
- 3. A coating composition according to claim 1 or 2, wherein the UV tracer absorbs radiation having a wavelength of between 330nm and 400nm and emits radiation having a wavelength of between 400nm and 550nm.
- 4. A coating composition according to any preceding claim, wherein the UV tracer comprises an optical brightener.
- 5. A coating composition according to any preceding claim, wherein the UV tracer Q comprises a benzoxazole compound and/or a bis-benzoxazole compound and/or a thiophenediyl benzoxazole compound and/or thiophenediyl bis-benzoxazole compound. Q 20
- 6. A coating composition according to any preceding claim, wherein the tracer comprises a stilbene benzoxazole.
- 7. A coating composition according to any preceding claim, wherein the composition comprises the UV tracer in an amount of between 50g and 500g per 100 litres of composition.
- 8. A coating composition according to any preceding claim, wherein the coating composition is adapted to provide a substantially transparent coating to a substrate.
- 9. A coating composition according to any preceding claim, wherein the coating composition is adapted to coat a painted surface.
- 10. A coating composition according to any preceding claim, wherein the coating composition comprises a glaze forming composition.
- 11. A coating composition according to any preceding claim, wherein the coating composition comprises a composition which is adapted to cure after application to a substrate to produce a protective coating for the substrate.
- 12. A coating composition according to any preceding claim, wherein the coating composition comprises a glaze forming composition which cures in ambient conditions.
- 13. A coating composition according to any preceding claim, wherein the coating composition comprises a solvent based composition which cures by solvent evaporation and air drying.
- 14. A coating composition according to any preceding claim, wherein the coating composition comprises a solvent.
- 15. A coating composition according to any preceding claim, wherein the coating composition comprises an aliphatic hydrocarbon solvent.
- 16. A coating composition according to any preceding claim, wherein the coating composition comprises a solvent in an amount of between 80 litres and 99 litres per 100 litres of composition. a)Q
- 17. A coating composition according to any preceding claim, wherein the coating composition comprises an oil. o 20
- 18. A coating composition according to any preceding claim, wherein the coating composition comprises a combination of oils.
- 19. A coating composition according to any preceding claim, wherein the coating composition comprises a hydrocarbon oil.
- 20. A coating composition according to any preceding claim, wherein the coating composition comprises a combination of one or more vegetable oils and one or more silicon oi Is.
- 21. A coating composition according to any preceding claim, wherein the coating composition comprises oil(s) in an amount of between 1 litre and 5 litres per 100 litres of composition.
- 22. A coating composition according to any preceding claim, wherein the coating composition comprises a radical scavenger.
- 23. A coating composition according to any preceding claim, wherein the coating composition comprises a hindered amine light stabiliser (HALS).
- 24. A coating composition according to any preceding claim, wherein the coating composition comprises a UV-absorber.
- 25. A coating composition according to any preceding claim, wherein the coating composition comprises an oxalinide.
- 26. A coating composition according to any preceding claim, wherein the coating composition comprises a blend of hindered amine light stabilisers and UV-absorber in an amount of between 0.4Kg and 1Kg per 100 litres of composition.
- 27. A coating composition according to any preceding claim, wherein the coating composition comprises a chlorinated solvent.
- 28. A coating composition according to any of claims 1 to 8, wherein the coating composition is adapted to coat a fabric and/or leather surface. a)Q
- 29. A coating composition comprising a tracer, said composition being adapted to provide a coating whose coverage on a substrate can be assessed using the tracer. o 20
- 30. A coating composition according to claim 29, wherein said composition is adapted to provide a protective coating which is substantially transparent and whose coverage on a substrate can be assessed using the tracer.
- 31. A coating composition according to claim 29 or 30 and having the features of any of claims 1 to 28.
- 32. A method of providing a substrate with a coating, the method comprising applying a coating composition comprising a UV tracer onto the substrate to provide a coating which fluoresces when exposed to UV electromagnetic radiation.
- 33. A method according to claim 32, wherein the method comprises applying a coating composition comprising a UV tracer onto the substrate to provide a protective coating which is substantially transparent and which fluoresces when exposed to UV electromagnetic radiation.
- 34. A method according to claim 32 or 33, wherein the method comprises applying a composition according to any of claims 1 to 28 onto the substrate.
- 35. A method according to any of claims 32 to 34, wherein the method comprises providing a painted surface with a coating.
- 36. A method according to any of claims 32 to 35, wherein the method further comprises a step of checking the coating coverage on the substrate by exposing the coating to UV radiation, suitably to near UV radiation to cause it to fluoresce.
- 37. A method according to any of claims 32 to 36, wherein the method comprises cleaning a substrate prior to application of the coating composition to the substrate.
- 38. A method according to any of claims 32 to 37, wherein the method comprises polishing a substrate prior to application of the coating composition to the substrate.
- 39. A method according to any of claims 32 to 38, wherein the method comprises polishing a substrate with an emulsion polish prior to application of the coating composition.0)
- 40. A method according to any of claims 32 to 39, wherein the coating composition is Q applied by wiping it onto the substrate and wherein the coating composition is wiped on, allowed to begin to cure and then buffed to attempt to produce even coverage. o 20
- 41. A method according to any of claims 32 to 34, wherein the method comprises providing a fabric and/or leather surface with a coating.
- 42. A method of providing a substrate with a coating, the method comprising applying a coating composition comprising a tracer onto the substrate to provide a coating whose coverage on the substrate can be assessed using the tracer.
- 43. A method according to claim 42, wherein the method comprises applying a coating composition comprising a tracer onto the substrate to provide a protective coating which is substantially transparent and whose coverage on the substrate can be assessed using the tracer.
- 44. A method according to claim 42 or 43 and having the features of any of claims 32 to 42.
- 45. A coated article comprising a coating containing a tracer.
- 46. An article according to claim 45, wherein the coating comprises a coating formed with a composition according to any of claims 1 to 31 and/or wherein the coating is applied according to a method of any of claims 32 to 44.
- 47. Use of a fluorescing compound as a UV tracer in a coating composition to allow the coverage of a coating produced by applying the coating composition to a substrate to be assessed by exposing the coating to UV radiation to cause the coating to fluoresce.
- 48. Use according to claim 47 wherein the coating composition comprises a composition according to any of claims I to 31.
- 49. A coating composition or coating method substantially as described herein. a) Co
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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GB0812466A GB2462668A (en) | 2008-07-08 | 2008-07-08 | Coating compositions containing UV tracers |
Applications Claiming Priority (1)
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GB0812466A GB2462668A (en) | 2008-07-08 | 2008-07-08 | Coating compositions containing UV tracers |
Publications (2)
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GB0812466D0 GB0812466D0 (en) | 2008-08-13 |
GB2462668A true GB2462668A (en) | 2010-02-24 |
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GB0812466A Withdrawn GB2462668A (en) | 2008-07-08 | 2008-07-08 | Coating compositions containing UV tracers |
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WO2017008815A1 (en) * | 2015-07-15 | 2017-01-19 | Two Teknik Aps | Tracer substances for svc analysis |
EP3625294A4 (en) * | 2017-05-20 | 2021-01-20 | Honeywell International Inc. Intellectual Property - Patent Services | Milk lumilux dispersion |
US20220106797A1 (en) * | 2020-10-06 | 2022-04-07 | Sika Technology Ag | Floor covering comprising uv-detectable primer |
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WO2007037940A1 (en) * | 2005-09-21 | 2007-04-05 | General Electric Company | Method for electrical insulation via applying a poly (arylene ether) composition and insulated electrical conductor |
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Also Published As
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GB0812466D0 (en) | 2008-08-13 |
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