GB2497355A - Luminescent gel coating and application to safety panels - Google Patents
Luminescent gel coating and application to safety panels Download PDFInfo
- Publication number
- GB2497355A GB2497355A GB1121203.2A GB201121203A GB2497355A GB 2497355 A GB2497355 A GB 2497355A GB 201121203 A GB201121203 A GB 201121203A GB 2497355 A GB2497355 A GB 2497355A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pigment
- gel coating
- photoluminescent
- panel
- gel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000576 coating method Methods 0.000 title abstract description 39
- 239000011248 coating agent Substances 0.000 title abstract description 35
- 239000000049 pigment Substances 0.000 abstract description 41
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 18
- 239000000203 mixture Substances 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 14
- 239000004408 titanium dioxide Substances 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229910052984 zinc sulfide Inorganic materials 0.000 abstract description 4
- 239000005083 Zinc sulfide Substances 0.000 abstract description 3
- 239000002356 single layer Substances 0.000 abstract description 3
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 abstract description 3
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000010949 copper Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011152 fibreglass Substances 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 229920001187 thermosetting polymer Polymers 0.000 description 3
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000005424 photoluminescence Methods 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 229920006305 unsaturated polyester Polymers 0.000 description 2
- 239000012463 white pigment Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- HIZCTWCPHWUPFU-UHFFFAOYSA-N Glycerol tribenzoate Chemical compound C=1C=CC=CC=1C(=O)OCC(OC(=O)C=1C=CC=CC=1)COC(=O)C1=CC=CC=C1 HIZCTWCPHWUPFU-UHFFFAOYSA-N 0.000 description 1
- 241001233242 Lontra Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000000549 coloured material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Classifications
-
- 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
- C09D7/41—Organic pigments; Organic dyes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/54—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing zinc or cadmium
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/56—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/58—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing copper, silver or gold
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/36—Compounds of titanium
- C09C1/3607—Titanium dioxide
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Surface Treatment Of Glass (AREA)
- Luminescent Compositions (AREA)
- Laminated Bodies (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Paints Or Removers (AREA)
Abstract
A gel coating comprises a pigment and a photoluminescent element. Also shown is a safety access panel e.g. door, comprising a substrate and a gel coating, said gel coating being attached to and covering at least a part of said panel and wherein the gel coating comprises a single layer comprising a pigment and a photoluminescent element. Further shown is a method of manufacturing a pigmented, photoluminescent gel coating comprising at the steps, in this sequence, of first mixing the pigment and the photoluminescent material to make a mixture and second introducing the mixture to a carrier. The pigment is preferably white e.g. titanium dioxide and the photoluminescent material may be copper sulphide or zinc sulfide.
Description
Luminescent coating and p$jctjgn to safety panS dofteJnvention The present invention relates to gel coatings. More specifically, the invention relates to photoluminescent synthetic polymer blends usefu as gel coatings. The invention also relates to safety access panels comprising the above gel coatings, the safety panels including specifically doors. The invention also relates to methods of manufacturing the gel coating.
i«=Sground and Priojsjl The provision of photoluminescent, thermoluminescent, and eLectrotuminescent polymer blends used for as gel coats and as mouldabie resins is well**known. Commonly, a phosphorescent pigment such as a zinc suiphide structure with substitution of the zinc and activation by various elemental activators (typically ZnS:Cu, but other elements beside copper including aluminium, silver, gold, manganese, gallium, indium, scandium, Lead, cerium, terbium, europium, gadolinium, samarium, praseodymium or other rare earth elements and halogens, may be used). This element is suspended for example in a thermosetting and saturated polyester, along with a filler and utilised to make gel coated articles, for example, moulded, cast and fibreglass reinforced plastic articles. V4)1
Phototuminescent materials are used in a variety of commercial applications including warning signs, nachiney marking. dk illumination, directional signs, marking the edge of steps, fire helmets, accident protection, protective clothing and sports equipment.
Commercially available sheets of phototuminescent material typicaLly comprise phosphorescent pigment in clear polyvinyl chloride, Other approaches are also utilised, usualLy involving thermoplastics or elastomeric and rubbey materials, An example of such photolurmnescent textiles in the form of flexible sheet materials can be found at US Patent Number 4211813 (GRAVISSE), Here the sheet material was coated with a thin film of photoluminescen.t synthetic resin containing a phosphorescent metal sulphide and a ic substance which absorbs energy of short wavelength and emits energy at wavelengths which lie within the absorption spectrum of the phosphorescent constituent, Similarly, US Patent Number 5692895 discloses luminescent orthodontic appliances wherein a preferred plastics material comprising polycarbonate, glass fibre re-enforcement and a luminescent pigment, itself preferably zinc sulfide doped with copper or zinc sulfide doped with copper and manganese.
US Patent Number 5698301 (YONETANI) discloses a phosphorescent pigment in a varnish prepared by dissolving a resin such as a polycarbonate and acfyLic resin, a polyvinyl chloride or a polyester in a solvent and printing onto a transparent or reflective layer, is disclosed. Similarly, Luminescent films are commonly used on, for example, road signs.
A problem with using phosphorescent, photoiurninescent pigments in polymer resins is the tendency of the phosphorescent pigment to settle during blending operations and storage, oarticularly the larger size particles. usually known luminescent polymers must be blended and utilised immediately, often with the aid of air equipment to keep the phosphorescent particles in suspension. This is also true of thermosetting laminating and casting resins, where typically the phosphorescent particle falls out of suspension and cannot be sprayed or conveniently worked, This is one reason that attempts to produce a gel coating comprising a spedlic colour have not been successfuL Instead, the universally followed practice in this field for making a coloured object phosphorescent is to apply a transparent gel coating to its already pigmented surface, to produce a glossy, photoluminescent transparent or translucent coating, through which the colour of the pigmented surface underneath can be seen.
No one has yet been successFul in comhinng a phosphorescent pigment and a standard coloured pigment in a suspension without leading to separation of the two types of pigment or more commonly the overwhelming or masking of one by the other. Typically, previously when a colour has been added, the photoluminescence has been masked. As o such, the only combination available at the time of wrfting is a clear gel with a photolumninescent pigment suspended in it.
Thus it is a first object of the invention amongst others to attempt to find solutions to this problem.
A particular application of the new gel coating is in the context of a safety paneL Safe' panels include doors and other hatchways, notably including emergency exits. A conventional means of displaying an emergency exit is to either attach an exit sign to the safety panel or to put a light above or adjacent it, The drawbacks of these are readily i apparent -a sign may detach itseLf from the door, or a Light may go out, perhaps due to a power cut caused by the same emergency, triggering the need For the utilisation of the emergency exit. One of the things that the present invention offers is a way of fashioning safety panels including emergency exit doors in such a way that they are coLoured, preferably brightly, and therefore are highly visible under dayUght, or similar artifidat conditions, and emit a photoluminescent gLow when it is darker.
Thus it is a second object of the invention amongst others to attempt to Find solutions to this problem.
Surmnarystthtinyention a first broad, independent aspect, the invention comprises a safety access panel comprising a substrate and a get coating, said gel coating being attached to and covering at jeast a part of said paneL wherein the gel coating comprises a single layer comprising a pigment and a photoluminescent element, This combination of a pigment and a photoluminescent element, their being combined in such a way that both the pigment and the photoluminescent elernerfl are visible, with the safety panel necessarily having a pigmented colour during daylight' condftions and a luminescent hue during night time' conditions, has not been achieved before. The invention therefore comprises that innovation. Having a gel coating of this sort which is both pigmented and photo-luminescent is advantageous, because it allows for the coating of objects with a gel coating which has both of those properties. where this has not been 6 possIble before.
This Innovation Is of particular use when combined with a safety access panel Because suchadoortiteraftyglowsinthedark.thepaneLwhichmayforexamptebeatypeof emergency exit or escape hatch. may therefore dearty be seen by the user and located to easily at times when the panel needs to be utilised, i.e. during an emergency exit scenario.
The concept of the safety access panel includes guides towards hatches doors as well as the hatches and doors themselves, and includes shirting, ceiling and watt paneLs.
The provision of a Luminescent safety panel of this sort usefully allows fo: the user to is dispense with other forms of safety alert, such as emergency exit signs and lights -the glowing door is in Itself noticeable enough to attract users to It In times of emergency.
From a practical point of view the provision of a white door is likely to provide a door that stands out from surroundings, therefore marking It out as an emergency exit even during thedaytlme.
A gel coating of the sort described by the claim Is most effective, in that the Luminescence F of the coating can be seen up to approximately 200 feet away.
26 Preferably, the pigment is white.
The white/luminescent combination has been shown to balance' particularly well, that is to say neither of the pigment nor the luminescent material overwhelms the othec a strong white colour Is shown In daylight conditions, and a strong luminescence is shown in so conditions of relative darkness.
More preferably, the white pigment is titanium dioxide.
I
The use of titanium dioxide has been shown to be most effective at mixing with the Luminescent material, and as such provIdes the best batance, within a mixture, of white in daytime' conditions, and luminescent' In darkness.
PreferabLy, the safety access panel is a door.
A door is a commonly used type of safety panel and it is expected that a gel coated door would be particularly useful from the point of view of being the type which is most generally utilised.
Preferabty the panel comprises glass reinforced plastic A coated paneL of this composition is strong, durable and tends Itself to mass production.
Preferably, the phototurninescent effect provided by the gel-coating comprises a green glow.
The green glow is that which Is associated with emergency exits by the public and as such using a green glow is particularly advantageous from the point of view of the access panel beIng so recognised.
Preferably, the gel coating Is 500-1200 microns thick.
This range ci get coating thicknesses Is of sufficient thickness to hold both the coloured materiaL and the luminescent material within it Preferably, the gel coating comprises a pigment mixture comprising titanium dioxide and a phototuminescent element ao The combining of the pigment and the photoluminescent element in a pigment mixture and then introducing into the gel. coating provides the most effective means of combining pigment and the photoluminescent element such that neither overwhelms the other and both are able to function optimally.
S
Preferably, the gel coating comprises the outermost Layer of the paneL This form of gel coating doubles as a protective layer for the safety panel.
s The method also comprises a safety access panel substantially as described herein with reference to and as illustrated by any combination of the text and/ or drawings.
in a second broad, independent aspect, the invention comprises a gel coating comprising a single layer, comprising a pigment and a photoluminescent element, The advantage of this configuration of features, in the context of a safety panel is discussed above.
Preferab, the pigment is white.
The advantage of this feature, in the context of a safety panel is discussed above.
Preferably, the white pigment is titanium dioxide.
The advantage of this feature, in the context of a safety panel is discussed above.
PreFerably, the photoluminescent effect provided by the coating comprises a green glow.
The advantage of this feature, in the context of a safety panel, is discussed above.
Preferably, the white pgmerit mixture also comprises the photoluminescent element The advantage of this feature, in the context of a safety panel, is discussed above.
The invention also comprises a gel coating substantially as described herein with reference to and as illustrated by any combination of the text and/or drawings In a third broad, independent aspect, the invention comprises a method of manufacturing a pigmented, photoluminescent gel coating comprising at least the steps, in this sequence, of first mixing the pigment and the photolurninescent material to make a mixture and second introducing the mixture to a carrier.
This method provides the means of ensuring that both the coLour effect of the pigment and the photoluminescent effect of the phototurninescent element are effective in this mixture. By combining them prior to introduction into the carrier, this provides the most appropriate means of militating against the separation of the pigment and the photoluminescent element do not separate or fail to combine or otherwise arrange themselves so that one takes precedence or overwhelms the other, Preferably, the method comprises the further step of spraying a gel coating onto the surface of a mould.
Spraying provides a means of achieving a uniform thickness of gel coating layer, whilst also ensuring that both the pigment and the photoluminescent Layer are distributed correctly.
Preferably, the carrier comprises a monomer resin.
This is a particularly effective carrier.
The invention also comprises a method of manufacturing a pigmented, photoluminescent gel coating substantially as described hereir,with reference to and as illustrated by any combination of the text and/or drawings.
The Methad The method, in detail, comprises the foUoing steps: the user chooses a base colour which n the case of desiring a white colour finish would preferably be titanium dioxide but could also be another pigment derived from natural mineral products and ground rflo a powder or similarly prepared. Colours can often be a blend of several base colours; the pigment is mixed with the luminescent materiaL * The pigment either remains as a powder or is made Into a paste.
* The mixture of the ground pigment and the luminescent material is then introduced to a monomer, typically styrene.
* the pigment/monomer mix is then made into a Liquid; * this liquid is then added to the gel coat which may comprise an unsaturated polyester to resin with either lsophthaLk orthophthatic or isoneopentyglycol (NPG) properties or a vinylester or a combination of in various proportions * in use, this unsaturated polyester film Is the first part of a composite to be placed into a given mould, this necessarily being the case because the gel coat forms the outer layer of the given item, such as a safety paneb * the gel coat Is sprayed into the mould It is necessary that the gel coating be sprayed and not brushed in order than a properly mixed, homogeneous, uniform film is introduced into the mould; * the sprayed layer preferably has a thickness of 500-1200 microns; * the gel coat cures under a thermoset reaction upon the introduction of a catalyst between 1% to 3% by weight until the polyester reaches near saturation. A typical catalyst used is Methyl Ethyl Ketone Peroxide (MEKP).
* when a safety panel or other type of laminate is being manufactured other elements are then added, such as fibreglass and a sub-frame. Composite fibreglass doors are built up in a system of layers, and at Least some of the layers comprise unsaturated polyester resins.
Thus, a gel coat on its own or as ap$iS to an item such as a safety panel is provided which has a white colouring In the light and which glows luminescent green in the darkness.
The key step is the addition of the photoluminescent pigments at the start of the process during the pigment mixing stage. Thus the pigment mix comprises typically titanium dioxide and copper sulphide, added to a monomer resin carrier which Is then made into a Liquid form and/or a get form as per the method above. Although the use of titanium dioxide produces a white get coating, it is envisaged that mixing other pigments will produce coatings of other colours, notably red, blue and International orange.
A panel made by this method produces a panel where the length of time that it glows before the glow has diminished enough not to otter any practical use. The Length of service without a Suction in the glow rate Is currently 1 year, The pigment mixture comprises photoluminescent pigment and titanium dioxide mixture typically make up 5% to 15% by weight of the total get coat weight where the 18 photoluminescence makes up from 5% to 50% of the total pigment weight depending upon the strength and Longevity of the gLow required.
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1121203.2A GB2497355A (en) | 2011-12-09 | 2011-12-09 | Luminescent gel coating and application to safety panels |
GB1218553.4A GB2497385A (en) | 2011-12-09 | 2012-10-16 | Luminescent gel coated safety access panel |
GB1218597.1A GB2497386A (en) | 2011-12-09 | 2012-10-17 | Luminescent gel coated safety access panel |
PCT/GB2012/053068 WO2013084006A1 (en) | 2011-12-09 | 2012-12-10 | Luminescent coating and application to safety panels |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1121203.2A GB2497355A (en) | 2011-12-09 | 2011-12-09 | Luminescent gel coating and application to safety panels |
Publications (2)
Publication Number | Publication Date |
---|---|
GB201121203D0 GB201121203D0 (en) | 2012-01-18 |
GB2497355A true GB2497355A (en) | 2013-06-12 |
Family
ID=45541485
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1121203.2A Withdrawn GB2497355A (en) | 2011-12-09 | 2011-12-09 | Luminescent gel coating and application to safety panels |
GB1218553.4A Withdrawn GB2497385A (en) | 2011-12-09 | 2012-10-16 | Luminescent gel coated safety access panel |
GB1218597.1A Withdrawn GB2497386A (en) | 2011-12-09 | 2012-10-17 | Luminescent gel coated safety access panel |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1218553.4A Withdrawn GB2497385A (en) | 2011-12-09 | 2012-10-16 | Luminescent gel coated safety access panel |
GB1218597.1A Withdrawn GB2497386A (en) | 2011-12-09 | 2012-10-17 | Luminescent gel coated safety access panel |
Country Status (2)
Country | Link |
---|---|
GB (3) | GB2497355A (en) |
WO (1) | WO2013084006A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010010367A1 (en) * | 1998-10-13 | 2001-08-02 | Peter Burnell-Jones | Luminescent gel coats and moldable resins |
KR20020035373A (en) * | 2000-11-06 | 2002-05-11 | 이승준 | Composition for Luminous Coating Gel |
WO2004011571A1 (en) * | 2002-07-31 | 2004-02-05 | Orion 21 A. D. Pty Ltd | Photocurable thermosetting luminescent resins |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2384836A1 (en) * | 1977-03-25 | 1978-10-20 | Bric | COATED PHOTOLUMINESCENT TEXTILES |
TWI239671B (en) * | 2004-12-30 | 2005-09-11 | Ind Tech Res Inst | LED applied with omnidirectional reflector |
US20100178512A1 (en) * | 2006-12-06 | 2010-07-15 | Ciba Corporation | Changing surface properties by functionalized nanoparticles |
US20080160298A1 (en) * | 2006-12-28 | 2008-07-03 | Chengtao Li | Polycarbonate glazing system and method for making the same |
GB0802927D0 (en) * | 2008-02-18 | 2008-03-26 | Robert Gordon The University | Coating process and coated products |
-
2011
- 2011-12-09 GB GB1121203.2A patent/GB2497355A/en not_active Withdrawn
-
2012
- 2012-10-16 GB GB1218553.4A patent/GB2497385A/en not_active Withdrawn
- 2012-10-17 GB GB1218597.1A patent/GB2497386A/en not_active Withdrawn
- 2012-12-10 WO PCT/GB2012/053068 patent/WO2013084006A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010010367A1 (en) * | 1998-10-13 | 2001-08-02 | Peter Burnell-Jones | Luminescent gel coats and moldable resins |
KR20020035373A (en) * | 2000-11-06 | 2002-05-11 | 이승준 | Composition for Luminous Coating Gel |
WO2004011571A1 (en) * | 2002-07-31 | 2004-02-05 | Orion 21 A. D. Pty Ltd | Photocurable thermosetting luminescent resins |
Also Published As
Publication number | Publication date |
---|---|
WO2013084006A1 (en) | 2013-06-13 |
GB201218597D0 (en) | 2012-11-28 |
GB201121203D0 (en) | 2012-01-18 |
GB201218553D0 (en) | 2012-11-28 |
GB2497386A (en) | 2013-06-12 |
GB2497385A (en) | 2013-06-12 |
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