123 results about "Trimethyl benzene" patented technology

The invention discloses an aluminum substrate UV matt finish paint and a preparation process thereof, and relates to the technical field of paints.The aluminum substrate UV matt finish paint is prepared from, by mass, 10%-20% of modified polyurethane acrylate, 25%-32% of high-functionality aliphatic polyurethane acrylate, 18%-30% of special modified epoxy acrylate resin, 0.5%-2% of dispersing agent, 0.1%-0.5% of defoaming agent, 1%-3% of anti-settling powder and the balance water. The paint is prepared from the following components in percentage by weight: 10 to 15 percent of magnesium silicate mineral, 1 to 10 percent of matting powder, 0.2 to 1 percent of 1-hydroxycyclohexyl phenyl ketone, 0.5 to 3 percent of trimethylbenzoyl-diphenyl phosphine oxide, 1 to 3 percent of acrylate flatting agent, 0.2 to 1.2 percent of polyurea modified polyurethane rheological agent and 5 to 15 percent of trimethylolpropane triacrylate. According to the UV matte finishing paint disclosed by the invention, through compounding of ternary resin and enhancement of nano silicon dioxide, a rigid and tough cross-linked network is constructed, a paint film is free of cracks when being bent at 180 degrees, the adhesive force reaches grade 0, and a coating is resistant to acid and alkali etching liquid and free of corrosion by cooperating with a silane coupling agent and a light stabilization system, and the color difference is delta Elt after the UV matte finishing paint is subjected to high temperature of 260 DEG C; and 1.5, the anti-yellowing performance is excellent.

The invention belongs to the technical field of UV visbreaking polymers, and particularly relates to a UV visbreaking film and a preparation method thereof. Wherein the UV viscosity-reducing film sequentially comprises a base film (1), a first viscosity-reducing adhesive layer (5), a second viscosity-reducing adhesive layer (4) and a release film (3) from bottom to top, the first viscosity-reducing adhesive layer (5) and the second viscosity-reducing adhesive layer (4) both comprise a photoinitiator, the photoinitiator in the first viscosity-reducing adhesive layer (5) is 1-hydroxy-cyclohexyl phenyl ketone, and the content of the photoinitiator in the formula of the adhesive layer is 0.1%-10% by mass; a photoinitiator in the second viscosity-reducing adhesive layer (4) is bis (2, 4, 6-trimethylbenzoyl) phenyl phosphine oxide, and the content of the photoinitiator in the adhesive layer formula is 0.1-10% by mass; in the preparation method, ultraviolet irradiation precuring is carried out, so that the UV viscosity-reducing film has light selectivity and high cohesion strength, and the residual adhesive is remarkably reduced.

The invention relates to the field of filter materials, and discloses a denitration catalyst-loaded filter bag and a preparation method thereof, the filter bag comprises interface modifier impregnated modified polytetrafluoroethylene fiber and a catalytic additive loaded on the modified polytetrafluoroethylene fiber, the interface modifier is prepared by carrying out hydrolysis-polycondensation on ethyl orthosilicate, perfluorooctyl ethyl trimethoxy silane, trimethyl borate and 3-(2, 3-epoxypropoxy) propyl trimethoxy silane, and the interface modifier is prepared by carrying out hydrolysis-polycondensation on ethyl orthosilicate, perfluorooctyl ethyl trimethoxy silane, trimethyl borate and 3-(2, 3-epoxypropoxy) propyl trimethoxy silane; the catalytic additive is prepared by using polyether PluronicF127, 1, 3, 5-trimethylbenzene and dopamine as raw materials through emulsion-induced interface assembly and externally introducing mesoporous silica to prepare a hollow spherical catalyst carrier, then loading cerium and manganese precursors onto the surface of the hollow spherical catalyst carrier, and coating with a titanium dioxide shell layer. The filter bag prepared by the invention has good denitration activity, sulfur resistance, water resistance, hydrophobicity and friction resistance.

The present invention relates to a novel polymorph of (1R,2R,3aS,3bR,10aS,10bR,11S,12aS)-5,10b-difluoro-1-(((fluoromethyl)thio)carbonyl)-11-hydroxyl-2,10a,12a-trimethyl-7-phenyl-1,2,3,3a,3b,7,10,10a,10b,11,12,12a-dodecylhydrocyclapenta[5,6]napththo[1,2-F]indazole-1-furan-2-carboxylate ester as shown in formula (I), a preparation method therefor, and a use thereof. The crystal form of the present invention has characteristics such as a significant pharmaceutical effect, good stability, high yield, and high purity, and is beneficial for the selection and design of a drug administration route and the determination of a drug preparation process parameter, thereby improving drug production quality.

The invention relates to the technical field of organic synthesis, and discloses a preparation method of trimethylbenzoquinone, which comprises the following steps: mixing a reaction solution containing unsym-trimethylbenzene and an organic solvent with a catalyst, and adding an oxidizing agent to carry out oxidation reaction to obtain trimethylbenzoquinone, wherein the catalyst comprises a pyridine compound and methylrhenium trioxide. According to the method, the unsym-trimethylbenzene is adopted as a raw material, the methylrhenium trioxide and the pyridine compound are adopted as catalysts, the trimethylbenzoquinone is prepared through oxidation of the oxidizing agent, the product yield is high, and the consumption of the oxidizing agent is low.

This invention discloses a photosensitive supramolecular fluorescent polymer, its preparation method, and its anti-counterfeiting application in water, using trifluoroethyl methacrylate, hexafluorobutyl acrylate, 4-(acryloyloxy)butyl4-(2-methyl-3-(2-(2-methylbenzo[b]thiophen-3-yl)-4-oxo-5,6-2H-4H-thiaran[2,3-)b]thiaran-3-yl)benzo[b]thiophen-6-yl)-4-oxobutyrate, 4 This polymer was prepared by a simple one-step free radical copolymerization method using 1,1-(acryloyloxy)butyl3-(3,3,4,4,5,5-hexafluoro-2-(2-methyl-1,1-dioxide benzo[b]thiophene-3-yl)cyclopent-1-en-1-yl)-2-methylbenzo[b]thiophene-6-carboxylate 1,1-dioxide and phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide (photoinitiator-819) as raw materials. The polymer exhibits excellent multicolor light-switching performance, high stretch ratio, high self-healing efficiency, strong substrate adhesion, and antifouling properties, especially demonstrating excellent stability under strong acid, strong alkali, and high salt environments. The synthetic route is simple, and it has great application potential in underwater anti-counterfeiting and encryption technologies.

The invention relates to a calcipotriol nano-composite, difunctional integrated hydrogel for treating psoriasis as well as preparation and application of the difunctional integrated hydrogel. The preparation method comprises the following steps: loading calcipotriol on amino-modified mesoporous silica, and then carrying out a one-pot reaction on the amino-modified mesoporous silica, methacrylated gelatin, dopamine methacrylamide, sodium pirolinate carboxylate and phenyl (2, 4, 6-trimethylbenzoyl) lithium phosphate to obtain the difunctional integrated hydrogel. The hydrogel disclosed by the invention is UV-responsive drug-loaded hydrogel, can be quickly cross-linked and adhered to the surface of skin after being irradiated by UV, has the properties of high light transmission, drug sustained release, moisture retention and stable structure, and meets the clinical requirements of synchronous and integrated drug treatment and UV irradiation while remarkably improving the bioavailability of an externally applied drug; organic combination and mechanism complementation of two treatment modes are realized, so that the psoriasis is treated more efficiently.

A preparation method of the methacrylated gelatin with the dual functions comprises the following steps: firstly, preparing collagen methylated polymethacrylate, then mixing 5% of collagen methylated polymethacrylate, 0.2% of trimethylbenzoyl phosphonate, 10 mg / ml of a herba houttuyniae extract and 20 micrograms / ml of nifedimab, and carrying out uniform mixing, so as to obtain the methacrylated gelatin with the dual functions, the collagen methylated polymethacrylate and the trimethylbenzoyl phosphonate, the herba houttuyniae extract, the nifedimab and the collagen methylated polymethacrylate, the herba houttuyniae extract and the nifedimab. The methacrylated gelatin is prepared under ultraviolet irradiation, and the loose cross-linked network structure of the methacrylated gelatin can realize continuous release of drugs, so that the demand of continuous and stable drug delivery is met; in addition, the gelatin methacrylamide, the herba houttuyniae extract and the nintedanib are combined to relieve hemorrhagic intestinal adhesion and can regulate inflammation and anti-fibrosis functions.

The present invention relates to the manufacturing of dimethylphenols, particularly 2,5-dimethylphenol, respectively trimethylphenols, particularly 2,3,6-trimethylphenol, from 2,5-dimethylfuran and acetylene, respectively propyne, particularly in MAP gas, in the presence of a platinum catalyst. This invention offers a sustainable synthesis of β-tocopherols, respectively α-tocopherols.

The invention discloses an odorless scratch-resistant elastic bending UV (ultraviolet) excimer skin-touch varnish, which relates to the technical field of coatings and comprises the following components in percentage by mass: 10-30% of functional acrylate resin, 10-30% of a solvent, 10-30% of a solvent, 10-30% of a solvent and 10-30% of a solvent. 40 to 80% of modified polyurethane acrylate resin; 0.1-1% of a leveling agent; 0.1-1% of a defoaming agent; 0.1-4% of an organosilicon auxiliary agent; 0.5 to 2% of 2, 4, 6-trimethylbenzoyl diphenyl phosphine oxide; 0.5 to 7% of 2-hydroxy-4 '-(2-hydroxyethoxy)-2-methyl propiophenone, and the balance of water; 0.3-1% of a wetting dispersant; 2-5% of UV anti-settling slurry; 1-5% of wax powder; and 5-30% of nano sol. According to the UV quasi-molecular skin-touch varnish disclosed by the invention, through the combined action of an odorless resin system, fluorosilicone modified and enhanced three-functional-group elastic resin, nano-zirconia phase change toughening and a crosslinkable fixing auxiliary agent, multiple pairs of performance contradictions of elasticity and hardness, instant effect and durability, odorless effect and stability and the like in a traditional elastic bending UV coating are successfully solved; and the high-performance skin-touch coating with excellent elastic bending property, lasting high scratch resistance, real odor removal effect and good stability is obtained.

The invention discloses a mass spectrometric detection method for C3-alkylphenol separated by an acetonitrile-ammonia water mobile phase and application, and relates to the technical field of environmental detection.The mass spectrometric detection method comprises the steps that according to the petroleum content range in a sample, a corresponding sample pretreatment process is selected to prepare a sample; the method comprises the following steps: detecting a standard sequence sample, a conversion factor calibration sample and a sample by utilizing LC-HRMS (Liquid Chromatography-High Resolution Mass Spectrometry) under an acetonitrile-ammonia water mobile phase system, and simultaneously collecting MS1 data and MS2 data; calculating the standardized concentration of the first component and the concentration of the second component which flow out together according to the MS1 data; calculating the concentration of propyl phenol according to the MS2 data; according to the MS1 data of the co-outflow single component, calculating the conversion factor of the co-outflow first component, and calculating the concentration of trimethylphenol by combining the standardized concentration of the co-outflow first component and the concentration of propyl phenol. The detection limit of the method for 12 C3-alkyl substituted phenol isomeride single components is lower than 1.0 [mu] g / L, the adding standard recovery rate is 77-103%, the sensitivity is high, and the accuracy is good.

The invention provides a solvent-free oxidative coupling method for preparing 2, 2 ', 3, 3', 5, 5 '-hexamethyl biphenyl (HMBP), the method comprises the following steps: in the presence of a metal salt catalyst and an amine auxiliary agent, trimethylphenol is subjected to oxidative coupling to obtain 2, 2', 3, 3, 5, 5 '-hexamethyl biphenyl, the catalyst is selected from one or more of the following groups: salts of iron, copper, cobalt, nickel and zinc; and / or the amine auxiliary agent is selected from one or more of the following groups: organic amine and ammonia water.

The invention relates to light-cured 3D printing glass and a preparation method thereof. The light-cured 3D printing glass is characterized by being prepared from the following raw materials in percentage by weight: 65-70wt% of micro-nano glass powder and 30-35wt% of a resin raw material, wherein the resin is prepared from the following raw materials in percentage by weight: 40 to 55 percent of hydroxyethyl methacrylate (HEMA), 25 to 40 percent of bisphenol A diacrylate, 13 to 25 percent of 1, 6-hexanediol diacrylic acid (HDDA), 3 to 10 percent of diethyl phthalate (DEP), 0.5 to 2.5 percent of phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide and 0.3 to 1.5 percent of dispersing agent; wherein the ratio of HEMA to bisphenol A diacrylate is defined as 1: 0.45-1: 1, the ratio of bisphenol A diacrylate to HDA is defined as 1: 0.3-1: 0.9, and the ratio of HDA to DEP is defined as 1: 0.15-1: 0.7. The light-cured 3D printing glass slurry has the advantages that after the light-cured 3D printing glass slurry prepared by the invention is printed and sintered by a DLP method, the glass density is greater than or equal to 96%, the curing shrinkage rate is less than or equal to 4%, the shrinkage rate after sintering is less than or equal to 15%, the bending strength reaches up to 110 MPa, and the transmittance is greater than or equal to 85%.

The invention discloses a preparation method and application of a functional degradable soybean oil-based bionic porous composite bone scaffold. The method comprises the following steps: taking epoxidized soybean oil acrylate as a bio-based base material, compounding isobornyl methacrylate to improve the defects of high viscosity and low photosensitivity of the bio-based base material, adding a photoinitiator containing ethyl 2, 4, 6-trimethylbenzoyl phenyl phosphonate and phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide, compounding, and carrying out aging treatment to obtain base resin; mixing calcium lignosulphonate into the base resin to prepare composite photosensitive resin, and printing a triple-period extremely-small curved surface structure through a digital light processing technology and a 3D printing technology to finally obtain the functional degradable soybean oil-based bionic porous scaffold. The scaffold has calcium lignosulphonate-mediated controllable photo-thermal response behaviors of near-infrared light illumination regulation and bone scaffold component dependence under the condition of simulating the in-vivo environment of a human body, so that a controllable photo-thermal response-mediated remote shape memory function is realized, and meanwhile, a mild, safe and controllable photo-thermal curative effect can also be realized. Besides, calcium lignosulphonate promotes degradation of the composite scaffold by preferentially dissolving and generating a microporous structure on the surface of a matrix while improving the hydrophilic performance of the scaffold, and continuously releases calcium ions, so that the scaffold shows enhanced biomineralization ability and promotes cell proliferation and osteogenic differentiation. The research provides a solution with potential for the soybean oil-based biological photosensitive material in the digital light processing preparation technology and the multi-functional application of the bionic porous bone scaffold so as to deal with complex and irregular bone defects.

A radiation-curable ink jet ink composition includes a hydroxyl group-containing monofunctional monomer and / or an ether cyclic structure-containing monofunctional monomer, a nitrogen-containing heterocyclic structure-containing monofunctional monomer, a bifunctional monomer, and a polymerization initiator, in which the bifunctional monomer includes a vinyl ether group-containing (meth)acrylate represented by Formula (1), a content of the vinyl ether group-containing (meth)acrylate is 20% by mass or greater with respect to a total amount of the ink composition, and the polymerization initiator includes ethyl phenyl(2,4,6-trimethylbenzoyl)phosphinate.H2C═CR1—CO—OR2—O—CH═CH—R3  (1)

A radiation curable ink composition for ink jet according to one embodiment of the present disclosure contains a polymerizable compound and a photopolymerization initiator, where the photopolymerization initiator includes (2,4,6-trimethylbenzoyl)bis(p-tolyl)phosphine oxide, a content of the (2,4,6-trimethylbenzoyl)bis(p-tolyl)phosphine oxide is 3% by mass or more with respect to a total amount of the ink composition, the polymerizable compound includes a monofunctional polymerizable compound, and a content of the monofunctional polymerizable compound is 70% by mass or more with respect to a total amount of the polymerizable compound.

A radiation curable ink jet composition includes polymerizable compounds and a photopolymerization initiator, the polymerizable compounds include a monofunctional monomer, a content of the monofunctional monomer with respect to a total mass of the polymerizable compounds is 90 percent by mass or more, and the photopolymerization initiator includes ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate.

This invention provides a method for preparing phenyl-substituted 2-methyl-1H-indene derivatives via Stille coupling reaction, comprising: reacting brominated 2-methyl-1H-indene, trialkylphenyltin, palladium catalyst, and additives in an organic solvent; and after post-treatment following reaction to obtain the phenyl-substituted 2-methyl-1H-indene derivatives; wherein the trialkylphenyltin is at least one of trimethylphenyltin and tributylphenyltin; the palladium catalyst is at least one of Pd(PPh3)4, Pd2(dba)3, and Pd(dba)2; the additive is at least one of lithium chloride, cesium fluoride, and potassium fluoride; and the organic solvent is at least one of DMF, 1,4-dioxane, and NMP. This invention uses brominated 2-methyl-1H-indene and trialkylphenyltin as raw materials, and prepares the target product by reaction in an organic solvent in the presence of a palladium catalyst and additives. It exhibits good substrate adaptability and is simple to operate.

The invention discloses a method for detecting flavor substances in a tobacco extract, which comprises the following steps: adding a sample into a headspace bottle by adopting a headspace solid-phase microextraction-GC / MS (Gas Chromatography-Mass Spectrometer) combined method, then adding a saturated chloride aqueous solution, sealing and uniformly shaking, and then detecting by adopting a solid-phase microextraction-GC / MS combined instrument. According to the method, the saturated chloride is added to dilute the sample to increase the ion concentration in the solution, so that volatile aroma substances are promoted to be separated out from the sample, and the one-time detection sensitivity of the three aroma substances including terpinene, 1, 1, 6-trimethyl-1, 2, 3, 4-tetrahydronaphthalene and (E)-1-(2, 3, 6-trimethylphenyl) butyl-1, 3-diene is higher.

The present invention addresses the problem of providing an active energy ray-curable inkjet printing ink composition containing (2,4,6-trimethylbenzoyl)bis(p-tolyl)phosphine oxide as a photopolymerization initiator, the active energy ray-curable inkjet printing ink composition having sufficiently enhanced curability and preferably yielding a cured product having improved solvent resistance. As a solution, there is provided an active energy ray-curable inkjet printing ink composition having a viscosity of 5-80 cps at room temperature, wherein the ink composition contains 10 mass% or more of a monofunctional monomer with respect to the ink composition, 1-15 mass% of an amine-modified oligomer with respect to the ink composition, and (2,4,6-trimethylbenzoyl)bis(p-tolyl)phosphine oxide, and the ink composition contains a sensitizer when further containing a black pigment.

The invention provides white photocuring ink-jet ink and a preparation method thereof, and belongs to the technical field of ink-jet ink. The white photocuring ink-jet ink is prepared from the following components in parts by mass: 30 to 60 parts of monofunctional photocuring monomer, 10 to 20 parts of polyfunctional acrylate monomer, 5 to 25 parts of white pigment, 5 to 15 parts of photoinitiator composition and 0 to 15 parts of resin, wherein the photoinitiator composition is prepared from a compound of a light elimination type ketoxime ester photoinitiator and 2, 4, 6-trimethylbenzoyl phenyl ethyl phosphonate, and the photoinitiator composition is prepared from a compound of a light elimination type ketoxime ester photoinitiator and 2, 4, 6-trimethylbenzoyl phenyl ethyl phosphonate. According to the invention, the light elimination type ketoxime ester photoinitiator and the 2, 4, 6-trimethylbenzoyl phenyl ethyl phosphonate are compounded for use, and the synergistic effect of the photoelimination type ketoxime ester photoinitiator and the 2, 4, 6-trimethylbenzoyl phenyl ethyl phosphonate improves the photosensitive efficiency, the deep curing performance and the surface drying performance of the white photocuring ink-jet ink, and the white photocuring ink-jet ink is not easy to yellow.

The utility model belongs to the technical field of crude trimethylbenzoyl chloride rectification, and discloses a crude trimethylbenzoyl chloride rectification device which comprises a rectification tank, an auxiliary rectification assembly and a limiting assembly are respectively arranged on the inner side of the rectification tank, and the surface of the rectification tank is connected with a stable supporting frame. The surface of the auxiliary rectification assembly is connected with the inner side of the rectification tank, the surface of the limiting assembly is connected with the inner side of the rectification tank, the two rectangular plates are pulled towards the middle, so that the clamping blocks can be conveniently separated from the interior of the rectification tank, and the guide plate can be conveniently taken out of the rectification tank to be replaced or cleaned; similarly, under the external expansion pushing action force of an external expansion spring, a clamping block can be conveniently reset to be clamped with the interior of the rectification tank, so that a flow guide plate is limited in the rectification tank to slow down the flow speed of the crude trimethylbenzoyl chloride raw material, and the rectification effect of the crude trimethylbenzoyl chloride raw material is further improved in an auxiliary manner.

A composition for encapsulation, which contains a photopolymerizable compound and a photopolymerization initiator, and wherein the photopolymerization initiator comprises one or two selected from the group consisting of ethyl (2, 4, 6-trimethylbenzoyl) phenylphosphonate and phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide.

The invention relates to the technical field of organic synthesis, in particular to a preparation method of hexamethyl biphenol, which comprises the following steps: under the combined action of an alkaline environment, an oxidant and a catalyst, trimethylphenol is subjected to oxidative coupling reaction to obtain an intermediate, and the intermediate is reduced to obtain hexamethyl biphenol; the catalyst is an Ag-Cu-SAPO-34 molecular sieve. The method provided by the invention has the advantages that the catalyst is easy to separate, toxic and harmful substances are not generated, the subsequent treatment is simple, the method is suitable for large-scale industrial production, the reaction yield is high, and the product purity can reach 98% or above.

The application discloses a photocuring silicon oxynitride ceramic slurry, a preparation method and a complex structure porous ceramic preparation method. The slurry comprises modified ceramic mixed powder obtained by mixing ceramic powder and a surface modifier and a dispersing agent and a premixed liquid. The mixed ceramic powder comprises ceramic powder and a sintering aid. The ceramic powder is silicon oxynitride powder. The sintering aid is yttrium oxide powder and aluminum oxide powder. The premixed liquid comprises a mixture and a photoinitiator. The mixture is a mixed liquid of bisphenol A type difunctional epoxy acrylate resin, difunctional aliphatic polyurethane acrylate resin, isobornyl methacrylate, trimethylolpropane triacrylate, dipentaerythritol hexaacrylate and 9,9-bis[4-(2-hydroxyethoxy)phenyl]fluorene. The photoinitiator is 2,4,6-trimethylbenzoyl phenyl phosphonate. The complex structure porous ceramic preparation method using the slurry comprises printing, debinding and sintering processes. The application realizes photocuring forming of silicon oxynitride ceramic complex parts and preparation of complex structure ceramics.

The present invention provides a radiation-curable inkjet ink that has low odor and suitable viscosity and curability for use as an inkjet ink. [Solution] A radiation-curable inkjet ink composition comprising a polymerizable compound, a polymer thioxanthone polymerization initiator, and bis(2,4,6-trimethylbenzoyl)-phenylphosphine oxide, wherein the polymerizable compound does not contain an amine-modified oligomer, or the polymerizable compound contains an amine-modified oligomer, and the content of the amine-modified oligomer is less than 5% by mass of the total amount of the ink composition.

The application discloses a preparation method of diphenyl 2,4,6-trimethylphenyl sulfonium trifluoromethanesulfonate. Diphenyl sulfoxide, trifluoromethanesulfonic acid and mesitylene are used as starting materials, and diphenyl 2,4,6-trimethylphenyl sulfonium trifluoromethanesulfonate is generated through reaction under the catalysis of trifluoroacetic anhydride and solid acid, and then the crude product is obtained through liquid separation and concentration, and then the product is obtained through washing and second concentration. The mass ratio of the diphenyl sulfoxide, trifluoromethanesulfonic acid, mesitylene, trifluoroacetic anhydride and solid acid is 1:0.8-1.0:0.7-0.9:2.0-3.0:0.3-0.5. The reaction needs to be carried out in an organic solvent system. The product has high purity, the content of metal impurities can be controlled below 60 ppb, there is only one impurity under liquid phase condition, and the product can fully meet the use requirements as an electronic chemical raw material.

The invention discloses a silk-screen printing light equalizing film based on a polycarbonate base material and a preparation method of the silk-screen printing light equalizing film, and relates to the technical field of optical functional films. The preparation method of the silk-screen printing light equalizing film comprises the following steps: printing black ink on the front and back surfaces of a polycarbonate film through a silk-screen printing process, standing, and performing UV curing to form a black ink layer; and cutting to obtain the silk-screen printing light equalizing film. The black ink is prepared from the following components in parts by weight: 55 to 65 parts of aliphatic polyurethane acrylate, 20 to 25 parts of tripropylene glycol diacrylate, 10 to 15 parts of ethoxylated trimethylolpropane triacrylate, 6 to 12 parts of a light diffusion agent, 0.5 to 1 part of a dispersing agent BYK-388N, 0.1 to 0.5 part of 2, 4, 6-trimethyl-1, 3-pentanediol monoisobutyrate, 0.1 to 0.5 part of a photoinitiator, 0.1 to 0.5 part of a photoinitiator, 0.1 to 0.5 part of a photoinitiator, 0.1 to 0.5 part of a photoinitiator, 0.1 to 0.5 part of a photoinitiator, and 0.1 to 0.5 part of a photoinitiator. The invention relates to a high-temperature-resistant paint which is prepared from the following components in parts by weight: 0.5-1 part of 2, 3, 6-trimethylbenzoyl-diphenyl phosphine oxide, 0.5-1 part of an antioxidant B900, 0.3-0.5 part of pentaerythritol stearate and 5.5-8.5 parts of pigment.

The present disclosure provides compounds and compositions having anti-degradation agent properties, such as anti-ozonant, antioxidant and / or anti-fatigue agent properties, which are useful additives to vulcanized rubber articles. In some embodiments, the composition comprises a 2, 2, 4-trimethyl-N-phenyl-1, 2-dihydroquinoline-6-amine, and a method for preparing the same.

This invention provides a preparation process for tiamulin fumarate, belonging to the field of compound synthesis technology, comprising the following steps: truncated pleuromedullary is reacted with a bifunctional solid organic base and 2,4,6-trimethylbenzenesulfonyl chloride in a mixed solvent A to obtain a concentrated intermediate of truncated pleuromedullary trimethylbenzenesulfonate; 2-diethylaminochloroethane hydrochloride is deacidified in a fixed bed packed with a bifunctional solid organic base, reacted with sodium thiosulfate, and exchanged with tetrabutylammonium bromide to obtain 2-diethylaminoethyl Bunte salt tetrabutylammonium salt; after the reaction, the two react with fumaric acid to form a salt crystallization, yielding tiamulin fumarate. This invention can improve the reaction efficiency and selectivity of the truncated pleuromedullary sulfonation reaction, and further improve the yield and content of tiamulin fumarate.