A method of obtaining a composite pigment
(57) Abstract:Use: for coloring plastics, plastic materials, synthetic fibres, and in the manufacture of paints and varnishes. The essence of the invention: a method of obtaining a composite pigment includes processing inorganic carrier hydroxide of alkaline metal, then the organosilicon amine and then adding to the reaction mixture of hydrochloric acid to the equimolar ratio with the specified amine. Next on the processed media to instill sulfoacetate in the form of sodium salt in the reaction mixture is injected calcium chloride, allocate the obtained pigment and dried. Components taken in the following ratio, wt.h.: inorganic carrier 100; the alkali metal hydroxide of 0.2 - 0.5; organosilicon amine 0,3 - 3,0; direct or acid dye 5 - 25; calcium chloride is 0.1 - 0.5. 1 C. and 8 C.p. f-crystals, 1 table. The invention relates to a process for the synthesis of composite pigments in which the organic dye is chemically bound with an inorganic carrier. Composite pigments suitable for the manufacture of paints, coloring of plastics, plastic materials and synthetic fibres.Iswm aminopropyltriethoxysilane with subsequent inoculation acidic organic dye .The disadvantages of this method are the use of the acid form of sulfonates having low solubility in water and low concentration of dye grafted to the surface, which causes the transparency of the coating and loss of use of colored material as a pigment.In the prior art there is also known a method of producing pigment by grafting organic dye with reactive groups at the silicon atom to the inorganic carrier .The disadvantage of this method is the necessity of using organic solvents, special synthesis of dyes with reactive groups.As the closest analogue to the proposed invention, the selected method of obtaining a composite organic-inorganic pigment, including interaction organosilicon amine with oxides of titanium, aluminum, silicon or mixtures of these oxides and the subsequent inoculation of organic dye containing specially introduced reactive groups are epoxy, isocyanate, chlorosulfonic, and so on, the selection of the obtained pigment from the reaction mixture and drying .The disadvantage of this is TEZ dyes with reactive groups.Task to be solved by the present invention is directed, is the production of composite pigments having improved complex characteristics color density, hydrophobicity and oil absorption, as well as the expansion of the range of cheap inorganic carriers through the use of siliceous waste mining of coal and fly ash of thermal power plants.A new method for producing a composite organic-inorganic pigments includes a step of activating the surface of the inorganic carrier hydroxide of an alkali metal. Activated inorganic carrier is treated with the organosilicon amine and then adding to the reaction mixture of hydrochloric acid to the equimolar ratio with the organosilicon amine. Then carry out the inoculation of sodium salts sulfoacetate with subsequent introduction into the reaction mixture of calcium chloride. Source components to obtain a composite pigment taken in the following ratio, wt.h.:
Inorganic media - 100
The hydroxide of an alkali metal - 0,2-0,5
Organosilicon amine - 0,3-3,0
Sodium salt of sulfatases - 5-25
Calcium chloride - 0,1-0,5
As kremsier ,
R= C2H5, R1= (CH)2)3, R2= R3= H (I), R=C2H5, R1=(CH2)3, R2=R3=CH2CH (OH)CH2OOCC(CH3)=CH2(II), R=C2H5, R1=(CH2)3, R2=H, R3= CH2CH(OH)CH2OOCC(CH3)= CH2(III), R= C2H5, R1= CH2, R2= H, R3=(CH2)6NH2(IV), R= CH3; R1=(CH2)3, R2=R3=H (V), R=CH3; R1=(CH2)3, R2=H, R3=(CH2)2NH2(VI).All used organosilicon amines are commercially available products:
I - am-9 - aminopropyltriethoxysilane, THE 6-02-724-77
II - Recondensed - 3-N,N-[bis(2-hydroxy-3-methacryloxypropyl) amino] propyltriethoxysilane, THE 6-02-1-036-91.III - Cocondensate - 3-N-[(2-hydroxy-3-methacryloxypropyl) amino]propyltriethoxysilane, THE 6-02-1-802-94.IV - AGM-3 - [(6-aminohexyl)aminomethyl]triethoxysilane, THE 6-02-586-86.V - A-1100 - 3-aminopropyltrimethoxysilane, the product of the company Union Carbide.VI - Z-6020 - [3-(2-amino-ethyl)aminopropyl]trimethoxysilane, product of Dow Corning.We used azo-, diazo-, triphenylmethane is The 6-36-0204187-412-90, acid bright red G GOST 16164-79, acid scarlet OST 6-14-37-80, direct yellow To GOST 14178-78, direct bright orange GOST 26023-83, straight black 2C GOST 21810-76, direct ruby lightfastness MU GOST 23378-78.As the inorganic carrier used titanium dioxide, aluminum hydroxide, calcium carbonate, precipitated or pyrogenic silicon dioxide (white carbon black, silica, Aerosil), various silicates (talc, kaolin, powdered quartz). Also can be used as the inorganic carrier siliceous waste mining of brown coal (rock) with the content of SiO260-64 wt. %, Al2O326-30 wt. %, impurities else, THE 113-03-0020951070-93, and fly ash of thermal power plants.Example 1. Mix 5 kg white black with 125 ml of 20% NaOH solution for 15 min, incubated 40 min, add 50 ml of aminopropyltriethoxysilane (AGM-9), stirred for 15 min, incubated for 40 minutes add 22 ml of concentrated HCl (equimolar ratio with AGM-9), mix, make a solution of the dye acid yellow lightfastness (750 g in 150 ml water), stirred for 1 h, add 25 g of CaCl2, stirred for 15 min, separated pigment by filtration, dried at 110-120oC for 1.5 h, the Output of the pigment 92%. With the g, abrasive capacity of 4.1% in the Same way were getting pigments in examples 2-47, the results of which are shown in the table.The resulting pigments are loose not agglomerated powders, insoluble in water, intensely colored, not migratory in the painted material. Characteristics of the pigments listed in the table.Testing of pigments was carried out according to GOST 11279-83. The organic dyes. Test methods for pigments and varnishes.Abrasive capacity was determined by the weight loss of the friction plates with a suspension of the pigment. In relative units abrasive capacity of the media was:
Fly ash from thermal power 100
Powdered quartz - 19
Talc - 15
Chalk - 2,3
Abrasive capacity of the obtained pigments listed in the table.From the table it follows that the proposed method allows to obtain organic-inorganic pigments with a high content of grafted dye (from 1 to 25%) and improved characteristics in coverage and hydrophobicity. The new method makes possible shot dye in an inert medium (as, for example, in the case of titanium dioxide) and pozvolyayuthee their abrasive capacity up to 10 times (breed), that reduces wear and clogging of the pigment particles from natira. The use of calcium chloride upon receipt of the pigments in 1.5-2 times better ukryvistosti 1. A method of obtaining a composite pigment interaction inorganic carrier with silicone Amin, further grafting of the organic dye, the selection of the target product and drying, characterized in that the interaction is subjected to an inorganic carrier, pretreated with alkali metal hydroxide, one or more organosilicon amines of the formula
where R = CH3C2H5;
R2= H, CH2CH(OH)CH2OOCC(CH3)=CH2;
R3= H, CH2CH(OH)CH2OOCC(CH3) = CH2, (CH2)6NH2, (CH2)2NH2,
with the subsequent addition of hydrochloric acid to the equimolar ratio with silicone Amin, inoculation organic dye, which is used as direct or acid dyes, and the introduction of the reaction mixture of calcium chloride for subsequent mixing ratio, mA is in 0,3 - 3,0
Direct or acid dye - 5 - 25
Calcium chloride - 0,1 - 0,5
2. The method according to p. 1, characterized in that the inorganic carrier used substance selected from the group comprising titanium dioxide, aluminum hydroxide, calcium carbonate.3. The method according to p. 1, characterized in that the inorganic carrier used precipitated or pyrogenic silicon dioxide selected from the group comprising white carbon black, Aerosil, and silica gel.4. The method according to p. 1, characterized in that the inorganic carrier used aluminosilicate.5. The method according to p. 4, characterized in that the aluminosilicate used substance selected from the group comprising talc, kaolin, powdered quartz.6. The method according to p. 4, characterized in that the aluminosilicate use the breed, which is the waste mining coal with a content of SiO260 - 64 wt.%, Al2O326 - 30 wt.%, impurity - rest.7. The method according to p. 4, characterized in that the aluminosilicate use fly ash of thermal power plants with the content of SiO260 - 64 wt.%; Al2O326 - 30 wt.%, impurity - rest.8. The method according to any of paragraphs.1 - 7 different the group, including aminopropyltriethoxysilane, 3-N,N-[bis(2-hydroxy-3 - methacryloxypropyl)amino] propyltriethoxysilane, 3-N-[(2-hydroxy-3-methacryloxypropyl) amino] propyltriethoxysilane, [(6-aminohexyl)aminomethyl] triethoxysilane, 3-aminopropyltrimethoxysilane, [3-(2-amino-ethyl)aminopropyl] trimethoxysilane.9. The method according to any of paragraphs.1 to 8, characterized in that as a direct or acid dye used azo-, triphenylmethane and antrahinonovye sulfoacetate.
where n= 6-9,
< / BR>The claimed connection most effectively can be used as fluorescent additives in liquid and solid scintillators as active element in laser technology
FIELD: dyes and pigments.
SUBSTANCE: invention relates to a method for preparing an aqueous dispersion wherein water-insoluble dye is dispersed stable in an aqueous medium containing water and that is used as ink, respectively. Invention describes an aqueous dispersion comprising particles including water-insoluble dye and a polymeric compound or surface-active substance wherein its hydrophilic moiety is formed by at least one group taken among the group consisting of carboxyl, sulfonic, phosphorus, hydroxyl and alkylene oxide group. Particles are dispersed in water-containing medium and dispersion shows intensity of light scattering 30000 imp/s, not above, when it comprises sufficient amount of particles and to provides value of absorption peak with respect to visible light = 1 and particles give the same color as a water-insoluble dye in crystalline state. Also, invention relates to a method for its preparing involving the following stages: (1) preparing a solution containing water-insoluble dye and a dispersing agent dissolved in aprotonic water-soluble organic solvent in the presence of alkali; (2) mixing the solution with water and preparing the dispersion containing particles comprising water-insoluble dye and dispersing agent. Also, invention describes particles comprising water-insoluble dye and polymeric compound or surface-active substance wherein its hydrophilic moiety is formed by at least one group taken among the group consisting of carboxyl, sulfonic, phosphorus, hydroxyl and alkylene oxide group provides the same color as water-insoluble dye in crystalline state and having colored moiety with water-insoluble dye and non-colored moiety wherein non-colored moiety exists in the round region with radius 40 nm and wherein its center is the required point in a particle. Also, invention relates to a method for their preparing that involves the following stages: (A) preparing an aqueous dispersion; (B) formation of aggregate consisting of dispersion particles and isolation of aggregate from the dispersion; (C) conferring to particles in aggregate the capacity for repeated dispersing and wherein the stage (B) involves sub-stage of addition of acid to the dispersion to form aggregate, and the stage (C) involves sub-stage of treatment of aggregate with alkali to confer particle in aggregate the capacity for repeated dispersing, and ink containing particles described above. Proposed ink provides printing with excellent quality by color and clearness that are resistant to water and light.
EFFECT: improved preparing method, improved and valuable properties of dispersion and ink.
19 cl, 16 tbl, 1 dwg, 24 ex
SUBSTANCE: invention pertains to coloured finishing coatings, used, for example, in the motor car industry. Description is given of the coating, which has thickness of between 5 and 25 mcm. The coating contains a high-molecular organic binding substance and from 5 to 15 mass % of 3,6-di(4'-biphenyl)-2,5-dihydropyrrole[3,4-c]pyrrole-1,4-dione in conversion to full content of non-volatile component, at least one extra colouring pigment and a compulsory additive of white pigments, black pigments or pigments which form special effects, which contain, in conversion to the quantity of colouring pigments, (a) from 30 to 90 % mass of 3,6-di(4'-biphenyl)-2,5-dihydropyrrole[3,4-c]pyrrole-1,4-dione, with specific surface area from 20 to 50 m2/g, and (b) from 10 to 70% mass of extra organic pigment, with surface area from 10 to 10 m/g, chosen from a group containing quinacridones, diketopyrrole[3,4-c]pyrrole dioxazines, indanthrones, perylenes, phtalocyanine and 3-amino-1H-isoindole-1-onoximate metal-complex pigments and their solid solutions and mixtures. Description is also given of a composition for external coating, method of depositing it and objects with the given coating.
EFFECT: invention provides for high quality non-transparent coating.
15 cl, 6 ex
SUBSTANCE: present invention relates to a polyurethane dispersing resin, primarily having a polyurethane chain which contains hydrophilic groups of the side chain based on polyalkylene oxide, where groups of the side chain are covalently bonded to the polyurethane backbone chain, and where content of polyalkylene oxide in the polyurethane dispersing resin is at least 45 wt % and not more than 80 wt %. Polyurethane also contains hydrophobic groups on the side chain, which are covalently bonded to the polyurethane backbone chain. The invention also describes a coating composition containing said polyurethane dispersing resin, methods of preparing said composition and use of the polyurethane dispersing resin to prepare a composition for mixing with a pigment.
EFFECT: providing a polyurethane dispersing resin which enables to prepare concentrates of pigments, which can be easily included in a coating composition, in which pigments are stably dispersed, as well as possibility of obtaining pigment compositions with a wide range of pigments and obtaining dyes having excellent properties and stability, especially hard-to-disperse and stabilised pigments.
24 cl, 16 ex, 4 tbl
SUBSTANCE: pigment composition contains at least 35 wt % one pigment and at most 65 wt % polymer-dispersant per total weight of the pigment and the polymer-dispersant. Said polymer-dispersant contains a polymer backbone chain obtained via chain-transfer polymerisation, having hydrophilic polyalkylene oxide side groups. The pigment contained in the composition is selected from a wide range of pigments and has average particle size between 50 nm and 5000 nm. Described also is a method of preparing said pigment composition, a coating composition based on said composition and use in preparing a mixed pigment composition.
EFFECT: composition ensures easy mixture with aqueous and organic media.
11 cl, 1 tbl, 10 ex
SUBSTANCE: invention relates to pigment compositions suitable for use as admix pigments. Disclosed is a solid pigment composition containing a pigment and a dispersant resin. Said composition contains at least 35 wt % of at least one pigment and not more than 65 wt % dispersant resin of the total weight of the pigment and dispersant resin. The dispersant resin contains a backbone polymer chain formed by esters containing an electron-depleted C=C double bond and having at least one side hydrophilic group of polyalkylene oxide monoalkyl ether. Said dispersant resin contains 30-80 wt % alkylene oxide links and has average molecular weight from 1000 to 150000. The invention also discloses a method of preparing said pigment composition, a method of obtaining a coloured coating composition and use of said dispersant resin to prepare admix pigment compositions.
EFFECT: invention provides pigment compositions compatible with various diluents and binders, suitable for use as admix pigments to obtain paint which is stable even when using pigments which are hard to disperse and stabilise.
12 cl, 4 tbl, 8 ex
SUBSTANCE: disclosed is a method of producing a pigment paste, involving mixing a pigment, water and a surfactant and then removing water to residual moisture content of 2-5% by using as surfactant at least one amine salt selected from a group of amine salts of formula (R(CH2)x - NH3 +)y R-, where x is an integer from 1 to 3, y is an integer from 1 to 3; R is a higher fatty acid residue, R- is a mineral acid residue or an organic acid residue. Said surfactant is added to the pigment which is first ground in intense frictional force conditions in an aqueous medium in amount of 0.5-10% of the weight of the mixture of pigment and water.
EFFECT: method simplifies the process by cutting the number of steps and excludes heating the mixture when removing water, reduces power consumption 2,5-3 fold and ensures stability of the paste during storage without a toxic or inflammable varnish base.
24 cl, 8 ex
SUBSTANCE: dispersive agent contains synergic mixture, which consists of non-ionogenic surface-active substances (SAS) and anion-active SAS. Non-ionogenic SAS of formula where n=10-21, m=8-20, q=0-20. Anion-active surface-active substance of formula where k=0-21, p=10-18.
EFFECT: synergic mixture of SAS ensures intensification of process of obtaining pigment pastes in comparison with application of individual SAS, makes it possible to improve their consumer properties due to increase of aggregative stability, colouring ability and compatibility with polymeric binding agents.
SUBSTANCE: invention relates to compositions, containing specifically functionalised charged particles and counterions, applied in electrophoresis, for instance in electrophoresis displays. Composition for electrophoresis displays contains charged particle with volume from 5 nm3 to 50 million nm3, preferably having inorganic core of SiO2, Al2O3 and/or TiO2, or mixed SiO2, Al2O3 and/or TiO2 core, or core, mainly consisting of organic pigment and/or pigment derivative and counterion, separated from particle and not connected with particle covalently, with said counterion containing polysiloxane, containing silicon atom, which is directly bound with carbon atom.
EFFECT: invention makes it possible to obtain composition, containing coloured charged particles, suitable for energy effective electrophoresis displays.
14 cl, 23 ex
SUBSTANCE: invention relates to production of a novel azo compound and a pigment dispersant, as well as a pigment composition, a pigment dispersion and toner containing the azo compound. An azo compound of general formula (1) , where R1 denotes an alkyl group containing 1-6 carbon atoms, or a phenyl group; R2-R6 denotes a hydrogen atom or a substitute of general formula (2) , where P1 denotes a polymeric component; L1 denotes an alkylene group containing 1-3 carbon atoms, or an arylene group containing 6-10 carbon atoms, and * denotes a bonding site; R7-R11 denotes a hydrogen atom, a COOR12 group or a CONR13R14 group; and each R12-R14 denotes a hydrogen atom or an alkyl group containing 1-3 carbon atoms.
EFFECT: invention enables to obtain a pigment dispersant, having high affinity to pigments, as well as toner with high chromaticity and good colour hue.
11 cl, 2 dwg, 4 tbl
SUBSTANCE: invention relates to obtaining an azo compound for the improvement of azo pigment dispersing ability in a water-insoluble solvent, dispersant, pigment composition, pigment dispersion and toner. The azo compound of the general formula (1), where R1 represents an alkyl group, which has 1-6 carbon atoms, or a phenyl group; R2-R6 stand for a hydrogen atom or a polymer, and at least one of R2-R6 represents a polymer; R7-R11, each, stands for a hydrogen atom, COOR12 group or CONR13R14 group, and at least one of R7-R11 stands for a COOR12 group or CONR13R14 group; and R12-R14, each, stands for a hydrogen atom or an alkyl group, which has 1-3 carbon atoms. The pigment composition includes a pigment dispersant, which contains the azo compound and the azo pigment. The toner includes binding resin, wax and the pigment composition.
EFFECT: invention makes it possible to obtain the pigment dispersant with high affinity to pigments, as well as the toner with the high degree of chromaticity and good colour tone.
15 cl, 3 dwg, 5 tbl
FIELD: chemistry of polymers, leather industry, chemical technology.
SUBSTANCE: invention relates to a method for preparing polymeric products that are used in processes for dressing leather or fur, in treatment and disinfection of natural and sewage waters. Method for preparing polymeric products involves the hydroxymethylation reaction of polyhexamethylene guanidine chloride with formaldehyde and arylation reaction of prepared product with aromatic compound comprising o-amino- or o-hydroxy-groups. The hydroxymethylation reaction is carried out in the presence of acetic acid or formic acid up to formation of trimethylol derivative of polyhexamethylene guanidine chloride. In some cases the arylation product is subjected for complex formation with transient metal salt or azo-coupling reaction with diazonium salt taken among group including sulfanilic acid, naphthionic acid, j-naphthyls, p-nitroaniline, 2,6-dichloro-4-nitroaniline. Invention provides simplifying, accelerating and enhancing the effectiveness of process in dressing leathers with derivatives of polyhexamethylene guanidine showing tanning effect, staining properties, flocculating capacity and high antibacterial activity.
EFFECT: improved preparing method.
3 cl, 1 tbl, 9 ex
FIELD: nonferrous metallurgy industry; aircraft industry; other industries; production of the heat-resistant alloys on the basis of the nickel.
SUBSTANCE: the invention is pertaining to the dispergated coloring agents intended for the ink-jet recording. The invention describes the dispergated coloring agent containing the coloring agent and the pseudo-finely-dispergated particles of the polarizable polymer having the dimension less, than the particles of the coloring agent. In the dispergated coloring agent the coloring agent itself and the particles of the polarizable polymer are attached to each other. At that the pseudo-finely-dispergated particles of the polarizable polymer contain the interpolymer consisting of the monomeric components containing, at least, one type of the hydrophobic monomer and, at least, one type of the hydrophilic monomer, where the hydrophobic monomer contains, at least, the monomer having the methyl group in α - position and the radically-polymerizable non-saturated double bond. The invention also describes the method of production of the indicated dispergated coloring agent and the water ink produced on its basis. The presented dispergated coloring agent has the high stability for a long time and practically in the absence of the surface-active substance or the dispergator. The ink produced on its basis has stability of blowout in the ink-jet printing method.
EFFECT: the invention ensures, that the ink produced on the basis of the presented dispergated coloring agent has the high stability of blowout in the ink-jet printing method.
20 cl, 14 dwg, 7 tbl, 15 ex
SUBSTANCE: present invention pertains to new photochromic monomers
Alk=CH3-C10H21 X=Cl, Br, I, F, NH2, CH2OH, CH2Cl, CH2Br, CHO, CO2H, method of obtaining them, photochromic polymers- polyazomethines, which are reversibly photocontrolled due to introduction into their structure, of dihetarylenthane class photochromic fragments.
EFFECT: obtaining new photochromic photocontrolled polymers for designing new information technologies.
8 cl, 25 dwg, 15 ex
SUBSTANCE: present invention relates to a method of marking materials with coded microparticles. Described is a method of marking materials with coded microparticles, characterised by that the coded microparticles used are obtained (i) through polymerisation of at least one water-soluble monoethylene unsaturated monomer in the presence of at least one ethylene unsaturated monomer containing at least two double bonds in a molecule, through reverse suspension polymerisation of water in oil, where the suspension agent used is doped nanoparticles, or (ii) emulsion polymerisation of water-insoluble monoethylene unsaturated monomers containing 0-10 wt %, in terms of the mixture of monomers, of at least one ethylene unsaturated monomer containing at least two double bonds in a molecule, where the emulsifying agent for stabilising the dispersion phase is in form of doped nanoparticles, or (iii) polymerisation of at least one ethylene unsaturated monomer and a copolymerisable dye containing an ethylene unsaturated double bond and, if needed, agglomeration of these particles, where during polymerisation in accordance with (i) and (ii), nanoparticles used are radioactively doped or doped with at least one dye and one compound from the group of rare-earth elements of the periodic table. Described also are materials containing coded microparticles for marking, obtained using the described method. The invention describes use of coded microparticles obtained using the described method.
EFFECT: novel method of marking materials.
14 cl, 1 tbl, 14 ex
SUBSTANCE: the invention relates to polymer colouring agents used in coating compositions to protect the image forming layer of the offset plates. Described are a new water-soluble polymer colouring agent with the absorption band ranging from about 300 nm to about 600 nm, and a coating composition for a thermographic offset plate which comprises: (a) the said polymer colouring agent with the absorption band ranging from about 300 nm to about 600 nm, and (b) organic microparticles which contain cross-linked copolymers of acrylate ot methylacrylate and styrole, 2-hydroxymethylacrylate, methacrylate, poly(oxyethylene)methacrylate or a linear or branched alkylmethacrylate; or inorganic nanoparticles containing silicone oxide or aluminium oxide. Described is the thermographic offset plate for reverse printing, containing (a) water receptive plate, (b) a layer positioned on the plate which forms the image in the near-infrared region, and (c) the coating layer which is positioned on the image-forming layer and contains the said coating composition.
EFFECT: reduction or elimination of background filling of the offset plates in the conditions of white light, elimination of the need to use separating paper when packaging offset plates.
7 cl, 10 dwg, 13 ex