A water-dispersible fluorescent fluorescent paint
The invention relates to a paint coating of the fluorescent type, namely the composition of a water-dispersible fluorescent fluorescent paint can be used for applying the signal label to paint the road, navigation, aerodrome signs and may find wide application in various industries and agriculture. Describes a water-dispersible fluorescent fluorescent paint containing film-forming - 50% stirolakrilat dispersion, the thickener is an acrylic thickener, fluorescent pigment-based thermoplastic melamineformaldehyde resin, dispersant - 30% aqueous solution of ammonium salts of polyacrylic acids and hydrophobic siliconsamurai the non and the ultraviolet absorbent is derived dihydroxybenzophenone, 30% of which is from the prescription of the quantities injected into the film-forming, and the remaining 70% in the total mixture. A water-dispersible fluorescent fluorescent paint can improve the consumer properties of the finished product, to provide high aggregate stability of the paint during storage and when using all known fluorescent pigments, significantly improve sitechristian fluorescent type, which can be used for applying the signal label clearly visible with diffused light to paint the road, navigation, aerodrome signs, for applying distinctive signs on plant equipment for marking of aircraft, can be used in various industries and agriculture.Known fluorescent fluorescent paint based on polyacrylic, kremnijorganicheskih and acrylamide resins. The use of polyacrylic resins were found to be inappropriate due to the high viscosity of concentrated solutions of these resins, paints have to be diluted for application with a spray gun, which necessitates the application of numerous layers (up to 5 layers) to achieve the desired coating thickness and achieve the effect of reflection.The disadvantage of these paints is also a need for more nanesenia on the fluorescent coating of varnish filter containing antioxidants, which transform or absorb UV component of daylight (300-400 nm), reducing its harmful effects on the floor, however, the fastness is not large enough (3-6 months) [Paint materials and their applications, M.: the State is e equipment improve visibility on land vehicles, aircraft. The composition of the fluorescent coatings include fluorescent pigments finely dispersed particles of resin, painted with fluorescent dyes. A significant part absorbed from the surrounding space and energy these coatings give back, reflecting, and the unabsorbed portion of the incident light.The disadvantage of these coatings is also the need for varnish filter to improve their lightfastness. Even so, the weather resistance of the coating is low, the paint has a tendency to stratification during storage [Reibman A. I. Protective paint coating. Chemistry. Leningrad branch, 1982, S. 243-244].The closest in composition, purpose and effect is achieved is a water-dispersible fluorescent fluorescent paint containing polyvinyl acetate emulsion (41-60%), pigment (21-30%), carboxymethylcellulose (0,25-0,6%), glycerol or ethylenglycol (1.7 to 3.8 percent), sodium salt butylnaphthalene-1-sulfonic acids (0,8-1,5%) [A. S. USSR 331079, MKI 09 D 5/22, 09 D 3/74. publ. Bull. 9, 1972 - prototype].The disadvantage of the composition are poor indicators light and weather resistance, the need for additional is their antioxidants, but even this measure does not lead to significant improvements in the above indicators paint.The basis of the invention the task is improving the water-dispersible fluorescent fluorescent paint through improved consumer properties due to the introduction of the set of components in a certain ratio, which helps to ensure a finished product of high aggregate stability of the paint during storage when using all known fluorescent pigments, as well as by the introduction of the antioxidants at certain stages, which can significantly improve the light and weather resistance of the finished product and prolong the service life of the coating.This object is achieved due to the fact that the water-dispersive fluorescent fluorescent paint containing film-forming, fluorescent pigment, a thickener, a dispersant and water, according to the invention, as film-forming contains 50% stirolakrilat dispersion, as a thickener is an acrylic thickener, pigment, fluorescent pigment-based thermoplastic melamineformaldehyde resin as a dispersant - 30% aqueous solution ammonitovye absorbent - derived dihydroxybenzophenone, 30% of which is from the prescription of the quantities injected into the film-forming, and the remaining 70% in the total mixture in a ratio of components, wt.%: 50% Stimulationa variance - 17,0-25,0 Fluorescent pigment-based thermoplastic melamineformaldehyde resin - 24,0-36,0 Acrylic thickener - 0,2-0,3 30% Aqueous solution of ammonium salt of polyacrylic acid of 0.1 - 0.2 Gidrofobny siliconsamurai the non - 0,1-0,2 Ultraviolet absorbent - derived dihydroxybenzophenone - 0,5-1,0 Water - the Rest Use as film-forming copolymer of acrylate and the introduction of an antioxidant (ultraviolet absorbent) in the film-forming and the mix can improve the light resistance and weather resistance are covered with not less than 12 months. Application as in the prototype of the protective layer using varnish-filter is not possible to achieve these targets, which are achieved with the use of this composition.The use of dispersant and thickener acrylate type when the claimed ratio of components eliminates the tendency of the paint to flake when stored.The invention is illustrated by the following examples get vesperia
The fluorescent pigment-based thermoplastic melamineformaldehyde resin
- Acrylic thickener type
A dispersant acrylic type - 30% aqueous solution of ammonium salt of polyacrylic acid
The non - hydrophobic siliconsamurai component
- Reactive absorber of ultraviolet rays - Supplement company EFKA (EFKA - 6725) - derived dihydroxybenzophenone
- The active substance: 95-100%
- Density at 20oFrom: 1.025-1.065 g/MS3
- Flash point: 200oWith
Appearance: slightly colored liquid
The procedure for preparation of paint next.In a container with a stirrer download demineralized water, film-forming with the content of the ultraviolet absorber (absorber UV rays) - 30% from prescription number to Include in a stirrer-mixer. After stirring download dispersant, thickening agent and a pigment. Stirring is carried out to obtain a homogeneous mass. The resulting mixture was dispersed using dissolver. After dispersion in pigmentary paste download half portion of non and low speed are mixing to obtain a stable composition. 10 minutes before the end of paramasivan the indicator of UV rays). Prepared paint before testing if necessary, dilute with water to a viscosity of 20-30 with the viscometer VZ-246 or VZ-4 with the nozzle diameter of 4 mm at a temperature of 20+0,5oC. Filtered through the grid 1 according to GOST 6613 and put in 1-2 layer on the prepared plate, covered with white paint. Recipe known and offered paints are shown in table 1. The results of the tests in table 2.From the data of tables 1, 2, it is seen that the proposed paint (examples 2-5) compared to the prototype, known protected with a varnish-filter for more 2-4 times the length of trials has a light-fastness 4-5 points on a 5-point scale ( compared with the prototype-3-4 points) and the weathering of coatings 6-8 points on 8-point scale, compared with 4-5 points on the prototype.In example 3, the lower concentration of ultraviolet absorbent (UV-absorber) there is a decrease in the time trials from 12 to 10 months, so further reducing the concentration of absorber (absorber UV rays) is impractical. With exorbitant concentration of absorber (absorber UV-rays) (example 6), the decrease of the weather. Test the paint on the propensity for delamination during storage showed that the proposed paint AGR is luorescence paint can improve the consumer properties of the finished product, to provide high aggregate stability of the paint during storage and when using all known fluorescent pigments, significantly improve the light and weather resistance of the paint.
A water-dispersible fluorescent fluorescent paint containing film-forming, fluorescent pigment, a thickener, a dispersant and water, wherein as the film-forming it contains 50% stirolakrilat dispersion, as a thickener is an acrylic thickener, pigment, fluorescent pigment-based thermoplastic melamineformaldehyde resin as a dispersant - 30% aqueous solution of ammonium salts of polyacrylic acids and hydrophobic siliconsamurai the non and additionally ultraviolet absorbent - derived dihydroxybenzophenone, 30% of which is from the prescription of the quantities injected into the film-forming, and the remaining 70% - in the mix at the ratio of components, wt.%:50% Stimulationa dispersion of 17.0-25,0Fluorescent pigment-based thermoplastic melamineformaldehyde resin 24,0-36,0Acrylic thickener of 0.2-0.330% Aq-0,2The ultraviolet absorbent is derived dihydroxybenzophenone 0,5-1,0Water The Rest
FIELD: highway engineering; highways structures and markings.
SUBSTANCE: the invention is pertaining to the field of highway engineering, mainly, to highways structures and markings, in particular, to photoluminescent material for the highways marking and to the highway structure. The invention presents the new photoluminescent material used for marking the highways traffic lanes. The photoluminescent material for the traffic lanes marking is made in the form of the paste containing: from 7 up to 95 mass % of the transparent polymeric component selected from the group consisting of the methacrylic acrylic component, the component of the type of non-saturated polyester, the epoxy component and the component of the silicone type, the photoluminescent colorant component with the average diameter of particles from 10 up to 2000 microns selected from the group composed of the material of the type of strontium aluminate and the material of the zinc sulfide type, and including at least one additional colorant component with the average diameter of the particles from 0.1 up to 40 microns selected from the group consisting of the white colorant, the yellow colorant and the orange or red colorant. At that the ratio of the mass of the photoluminescent colorant component and the mass of the additional colorant components makes of no more than 3.0. The invention also describes the highway structure containing the indicated photoluminescent material. The offered photoluminescent material for the traffic lanes marking possesses the required wear-resistance and resistance to the atmospheric effects, and also obtains the effective photoluminescence and may be used not only for the white lines, but also for the lines of various colors, and the covered with it lines are not slidable.
EFFECT: the invention ensures, that offered photoluminescent material for the traffic lanes marking is wear-resistant, resistant to the atmospheric effects, has the effective photoluminescence, may be used for making the white lines and the various colors lines and such lines are not slidable.
16 cl, 9 tbl, 13 ex
FIELD: electronic engineering, applicable in production of gas-discharge indicating panels.
SUBSTANCE: use is made of pastes, in the production of process of which the filler powder is mixed and ground in and organic solvent taken in amounts respectively 1.5 to 245 percent by mass and 75 to 98.5 percent by mass. To improve the paste quality, the filler powder and organic solvent mix is agitated with addition of balls, 2 to 5 mm in diameter, taken in amounts of 60 to 100 percent of the mix mass,, for preparation of the paste use is also made of am organic binder heated to 45-65 C.
EFFECT: provided forming of components of the gas-discharge panel with a high degree of resolution.
3 cl, 3 ex
SUBSTANCE: luminescent paint for treating surfaces of objects contains a film-forming component in a mixture of organic solvents, photoluminescent phosphor and filler. The photoluminescent phosphor used is strontium aluminate, activated europium, dysprosium and yttrium. The film-forming component is a 15% solution of chlorinated polyvinylchloride (CPVC), taken in the ratio 1:1.3-2. The CPVC is made from a mixture of solvents, containing butyl acetate, acetone and toluene in ratio of 1:2:5 respectively.
EFFECT: luminescent paint for treating surfaces of various indicators, especially road signs, the coating of which should have high resistance to long fluorescent lag.
4 cl, 2 tbl
FIELD: paint and varnish coverings.
SUBSTANCE: luminescent enamel contains a mix of solutions of two film-forming components - 50% solution polymethylphenylsiloxane pitch in toluene and 15% solution of a butyl methacrylate copolymer and methacrylic acid or a butyl methacrylate copolymer and amide of methacrylic acid in mixes of organic solvents, a luminescent pigment with long afterglow - strontium-calciumvaluminum silicate, activated by europium and neodymium, if necessary an additional pigment - titanium dioxide or zirconium dioxide, filler - aerosil at the declared proportion of the components. Also the method of obtaining of luminescent enamel and a product, where the described enamel is applied, is described.
EFFECT: allows obtaining coverings with high luminescent effect.
6 cl, 2 tbl, 14 dwg
SUBSTANCE: invention relates to novel (3Z)-4-aryl-4-hydroxy-1-(1,3,3-trimethylindolin-2-ylidene)but-3-en-2-ones of general formula 3: Ar=Ph (a), C6H4Me-n (b), C6H4Cl-n (c), C6H4OEt-n (d), which exhibit fluorescent properties and can be used as products for synthesis of novel heterocyclic systems, as well as substances for marking samples and additives for light-reflecting paints. Synthesis method thereof is described.
EFFECT: obtaining novel compounds.
4 cl, 4 ex
SUBSTANCE: disclosed is a luminescent composition for marking roads, which contains an aluminate type luminescent (phosphorescing) pigment and polymer binder selected from a group comprising: epoxy, urethane, acrylate, alkyd and composite polymer resins. The luminescent pigment is pre-treated in order to protect it from moisture using solutions of reagents selected from a group comprising mono-substituted phosphates, H2SO4, H3PO4, a mixture of tri- or disubstituted phosphates and at least one acid: HCl, H3SO4 or HNO3. Disclosed also is a luminescent paint for making roads, which contains an aluminate type luminescent (phosphorescing) pigment or a luminescent composition and a water or non-water based road paint or enamel. In another version, the luminescent paint is obtained by mixing a pigment which first protected from hydrolysis, polymer binder and a water or non-water based road paint or enamel: - luminescent pigment 2-60; polymer binder 4-20; road paint or enamel 94-20.
EFFECT: invention provides reliable protection of the pigment from hydrolysis, enables regulation of the amount of polymer binder which affects colour characteristics and technological aspects, as well as the size of particles of the luminescent pigment, which is important when mixing the pigment with components of compositions or paints.
4 cl, 8 tbl, 58 ex
SUBSTANCE: disclosed is a colourless luminescent decorative paint containing a luminophor and binder. The luminophor is an organic luminophor with anomalously large Stokes shift which is greater than 100 nm, which is colourless in daylight and luminescent in the visible spectral region when illuminated with a source of UV radiation. The organic binder is a transparent organic substance which does not absorb long-wave ultraviolet radiation in the 365-420 nm range.
EFFECT: obtaining fast and stable luminescent paint which contains a colourless organic luminophor, which enables to create a latent image which appears upon illumination with UV radiation which is invisible in daylight as well as in the dark, in the absence of UV radiation, the paint ensures high strength of the polymer base of the decorative layer of the article obtained using said paint.
13 cl, 8 ex
SUBSTANCE: described is a coloured coating composition containing a white primary paint and at least one colouring pigment in a form which can be easily mixed with the white primary paint. The white primary paint contains a film-forming polymer, a liquid carrier, one or more opaque white pigments and one or more filling materials. The coloured coating composition has light reflection coefficient Y less than 110 and greater than a value defined from the equation Y=mC+K, where 25>C>1.0, C is colour saturation of the coloured coating composition, m and K are empirical coefficients selected according to the type and number of types at least one colouring pigment and depend on the hue angle of the coating composition.
EFFECT: composition for applying on building surfaces makes said surfaces lighter than when using existing paints with close colour saturation.
7 cl, 2 dwg, 10 tbl
SUBSTANCE: invention relates to a security feature having a luminescent component having at least one luminophore consisting of at least one doped host lattice, and a component camouflaging the luminescent component, wherein the camouflaging component has chemical elements that have similar structure-chemical properties to the chemical elements of the luminescent component, wherein the chemical elements of the camouflaging component and the chemical elements of the luminescent component are formed by different chemical elements.
EFFECT: invention also relates to valuable document having said security feature.
17 cl, 4 ex
SUBSTANCE: invention relates to a security feature having a luminescent component that has at least one luminophore, consisting of a doped host lattice, and a component camouflaging the luminescence component, wherein the camouflaging component has at least two substances, wherein the first substance of the camouflaging component has an X-ray diffractogram that conceals the X-ray diffractogram of the luminescent component and the second substance of the camouflaging component has at least one cationic element of the luminescent component and at least one cationic element of the first substance of the camouflaging component, wherein the luminescent component and the first substance of the camouflaging component are formed from different cationic elements.
EFFECT: invention also relates to valuable documents having said security feature.
16 cl, 3 dwg, 9 ex