44 results about "Tripropylene glycol" patented technology

The invention discloses nano UV light-cured printing ink and a preparation method thereof, and relates to the technical field of printing ink preparation. The nano UV light-cured printing ink is prepared from nano UV light, the invention discloses a UV (ultraviolet) photoinitiator, which is prepared from the following raw materials in parts by weight: 20 to 40 parts of polyurethane acrylate oligomer, 15 to 30 parts of modified bisphenol A type epoxy acrylate, 10 to 15 parts of tripropylene glycol diacrylate, 5 to 10 parts of ethoxylated trimethylolpropane triacrylate, 5 to 15 parts of modified nano titanium dioxide, 3 to 8 parts of nano silver wire, 2 to 5 parts of photoinitiator 1173 and 1 to 3 parts of benzoin dimethyl ether. The invention relates to a silver-loaded zirconium phosphate composite material which is prepared from the following components in parts by weight: 0.5-2 parts of polyether modified polydimethylsiloxane, 0.3-1 part of a defoaming agent, 1-3 parts of a dispersing agent, 1-5 parts of silver-loaded zirconium phosphate, 0.5-2 parts of an antioxidant 1010, 0.5-2 parts of a coupling agent KH-550 and 10-25 parts of propylene glycol methyl ether acetate. The raw materials are scientifically proportioned and contain various modified components, and parameters of each step are clear. The preparation method is reasonable in process, the performance of the ink is improved through multi-step modification, and the obtained ink is good in dispersity and compatibility, high in curing efficiency and excellent in comprehensive performance and has good practicability and innovativeness.

The invention discloses a wear-resistant environment-friendly PET base material adhesive tape and a preparation method thereof, and belongs to the technical field of adhesive tapes, raw materials comprise a PET adhesive tape film and an EB curing modified adhesive, the surface of the modified PET adhesive tape film subjected to corona treatment is coated with the EB curing modified adhesive, then electron beam radiation curing is carried out, the absorbed dose of electron beams is 38-42 kGy, and the EB curing modified adhesive is prepared. And then cooling, rolling and curing to obtain the wear-resistant environment-friendly PET base material adhesive tape. The modified PET adhesive tape film is prepared from the following raw materials: PET resin and modified polyolefin elastomer master batch; the EB curing modified adhesive is prepared from the following raw materials: butyl acrylate, 2-ethylhexyl acrylate, tripropylene glycol diacrylate, acrylate resin, urethane acrylate and starch modified core-shell microsphere powder. According to the mode, a modification process is added in the preparation process of the PET adhesive tape film and the adhesive, and finally the environment-friendly PET base material adhesive tape with excellent comprehensive performance is prepared.

The invention belongs to the technical field of UV ink formula design and digital printing application, and particularly relates to scratch-resistant UV ink, a preparation method thereof and application of the scratch-resistant UV ink to digital printing. The scratch-resistant UV ink comprises the following raw materials in parts by weight: 15-25 parts of epoxy acrylate; 10 to 20 parts of polyurethane acrylate; 15 to 25 parts of a bifunctional monomer; 5-10 parts of a monomer with three functional groups and more than three functional groups; 3 to 5 parts of an alpha-hydroxy ketone photoinitiator; 2 to 4 parts of an acyl phosphorus oxide photoinitiator; 2 to 5 parts of organically modified nano silicon dioxide; 0.1 part to 0.5 part of a flatting agent; 0.5 to 1.5 parts of a dispersing agent; 10 to 15 parts of pigment; the bifunctional monomer is tripropylene glycol diacrylate; the monomer with three functional groups and more than three functional groups is trimethylolpropane triacrylate. The ink has pencil hardness greater than or equal to 3H and excellent flexibility, the adhesive force on substrates such as PC, PET, metal and the like reaches 0 level, the printing process is simplified, and the ink is suitable for digital printing in various scenes.

The application relates to the technical field of ink solvents, and particularly discloses an environmentally-friendly water-based ink solvent with high drying efficiency and a preparation method thereof, the environmentally-friendly water-based ink solvent with high drying efficiency comprises the following raw materials in parts by weight: 40-60 parts of water, 30-50 parts of a bio-based alcohol compound, 5-15 parts of n-propyl acetate, 0.3-1 part of tripropylene glycol n-butyl ether, 1-3 parts of nano-cellulose, 0.5-1 part of calcium chloride, 1-2 parts of a pH regulator and 0.2-0.4 parts of a chelating agent. The environmentally-friendly water-based ink solvent with high drying efficiency and the preparation method thereof can be used for ink printing, and have the advantages of high drying efficiency and good stability.

The invention relates to the technical field of ink solvents, and particularly discloses an environment-friendly water-based ink solvent with high drying efficiency and a preparation method of the environment-friendly water-based ink solvent. The environment-friendly water-based ink solvent with high drying efficiency is prepared from the following raw materials in parts by weight: 40 to 60 parts of water, 30 to 50 parts of bio-based alcohol compound, 5 to 15 parts of n-propyl acetate, 0.3 to 1 part of tripropylene glycol n-butyl ether, 1 to 3 parts of nano cellulose, 0.5 to 1 part of calcium chloride, 1 to 2 parts of pH regulator and 0.2 to 0.4 part of chelating agent. The environment-friendly water-based ink solvent with high drying efficiency and the preparation method thereof can be used for ink printing, and have the advantages of high drying efficiency and good stability.

An aerosol-generating article (10)(100)(1000) comprises: an aerosol-generating substrate (12)(112)(1004); a downstream element (42)(150)(1008) provided downstream of the aerosol- generating substrate (12)(112)(1004) and in axial alignment with the aerosol-generating substrate, the downstream element comprising a filtration material comprising a cellulosic filtration material comprising a fibrous material; and an additive coating applied to the fibrous material, the additive coating comprising at least one of dipropylene glycol, tripropylene glycol and tetrapropylene glycol; wherein the plug element comprises at least 5 percent by weight of the at least one of dipropylene glycol, tripropylene glycol and tetrapropylene glycol based on the dry weight of the cellulosic filtration material on a dry weight basis.

The application belongs to the technical field of cleaning agents, and particularly relates to an oil layer cleaning agent and a preparation method thereof. The oil layer cleaning agent is composed of the following raw materials in percentage by weight: polyammonia ether sulfate 0.3-0.5%, sodium dodecyl benzene sulfonate 0.1-0.3%, tripropylene glycol 6-10%, and the rest is water. The structural formula of the polyammonia ether sulfate is as follows: wherein m=5-20, and n=5-50. The oil layer cleaning agent has the advantages of good crude oil cleaning effect, the highest oil washing rate of 98.8%, simple preparation, and no by-products.

The present invention relates to a base liquid product, commonly called polyol, with a high hydroxyl index, for forming a biodegradable renewable polymer, which comprises a first base liquid product component mixed and reacted with a second and a third base liquid product component, wherein: the first base liquid product component is selected from at least one of: vegetable oil and / or modified vegetable oil; the second base liquid product component is selected from at least one of: nitrilotriethanol, preferably, and / or monoethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, propylene glycol, dipropylene glycol, tripropylene glycol, 1,4 butanediol, nitrilodiethanol and / or nitrilomonoethanol, dimethylpropane, pentaerythritol, glycerin or sorbitol; and the third base liquid product component is selected from at least one of: potassium hydroxide and / or sodium hydroxide.

The invention provides a UV hardening liquid and a preparation method thereof, and the UV hardening liquid is prepared from the following materials: organic and inorganic hybrid resin, hyperbranched polyurethane acrylate, fluorine modified epoxy acrylate, isobornyl acrylate, tripropylene glycol diacrylate, a thiol diluent, a photoinitiator, nano aluminum oxide, benzotriazole, hindered amine and a silane coupling agent. The photoinitiator comprises a photoinitiator TPO-L and a photoinitiator 819; the benzotriazole comprises UV-1; and the hindered amine comprises HALS-2. The UV hardening liquid disclosed by the invention can be rapidly cured through low energy to form a UV hardening layer with high wear resistance, high hardness and yellowing resistance.

The application discloses a kind of photopolymerization anion exchange membrane and preparation method thereof, belong to ion exchange membrane technical field.Clopropylmethyl styrene, tripropylene glycol dipropyl acrylate and photo initiator are mixed and stirred to obtain casting solution, then the casting solution is coated on glass plate, and the base film is prepared by using ultraviolet irradiation to initiate photopolymerization, then the base film is modified to obtain the required anion exchange membrane.The anion exchange membrane provided by the application can completely avoid the use of organic solvent during preparation, and has significant environmental and economic benefits.Meanwhile, the photopolymerization technology used has the advantages of simple operation, low energy consumption, fast polymerization rate, etc.The prepared anion exchange membrane has excellent desalination performance, and has a large-scale application prospect in the field of electrodialysis seawater desalination.

This invention belongs to the field of ink technology, specifically relating to an LED-curable ink that self-shrinks to form textures and its preparation method. The self-shrinking texture-forming LED-curable ink comprises the following components by weight percentage: 5-9% photoinitiator, 27-32% tripropylene glycol diacrylate, 18-24% trimethylolpropane triacrylate, 3-7% silicone acrylate, 8-13% modifier, 3-7% pigment, and 5-8% modified nanomaterials, with the balance being polymers; the polymers include epoxy acrylates, polyurethane acrylates, and tetrafunctional acrylate oligomers. The ink prepared by this invention, by adding silicone acrylates, can produce a shrinking effect, spontaneously forming specific texture effects, and is more resistant to harsh environments, showing excellent performance in coated paper packaging materials.

The invention discloses a moisture-proof curing agent applied to a PCB (Printed Circuit Board) coating and a preparation process of the moisture-proof curing agent, and relates to the technical field of PCB protective materials. The invention discloses a moisture-proof curing agent applied to a PCB coating. The invention discloses a nano-silicon dioxide modified epoxy resin, which is prepared from the following raw materials in parts by weight: 30 to 50 parts of epoxy resin, 20 to 35 parts of polyurethane prepolymer, 10 to 15 parts of nano-silicon dioxide, 5 to 10 parts of methyltrimethoxysilane, 3 to 8 parts of gamma-aminopropyltriethoxysilane, 0.5 to 2 parts of dibutyltin dilaurate, 2 to 5 parts of 2-hydroxy-4 '-(2-hydroxyethoxy)-2-methyl propiophenone and 1 to 3 parts of antioxidant 1076. The self-repairing coating is prepared from, by weight, 20-30 parts of epoxy resin, 8-12 parts of tripropylene glycol diacrylate, 5-8 parts of polytetrafluoroethylene micro powder, 4-7 parts of self-repairing microcapsules and 20-30 parts of modified acrylic resin. The moisture-proof curing agent has the advantages of good moisture-proof performance, low water absorption, excellent mechanical properties such as hardness and adhesive force, good temperature resistance and impact resistance, self-repairing function, high repairing efficiency, strong weatherability, no obvious change after ultraviolet aging, and excellent performance in all aspects, and is suitable for PCB coating protection.

The invention relates to a co-production method of 1, 1 '-oxydi-2-propanol and tripropylene glycol, which comprises the following steps: by taking propylene oxide and propylene glycol as raw materials, carrying out catalytic reaction under the action of a solid base catalyst, and separating and purifying after the reaction to respectively obtain the 1, 1'-oxydi-2-propanol and tripropylene glycol. The technology is flexible, intermittent production can be achieved, continuous operation can also be achieved, and adaptability is high; the content of the product 1, 1 '-oxydi-2-propanol is high, and the subsequent separation and purification process is greatly simplified; after the reaction, the catalyst can be repeatedly used through simple filtration or direct regeneration, no alkali-containing wastewater is generated in the process flow, and the environmental burden is greatly reduced; the obtained single isomer is used as a raw material of polymers such as polyurethane, and can provide highly consistent reaction activity and polymerization kinetics, so that the molecular structure of the polymer is accurately regulated and controlled, the final product is endowed with more excellent and stable mechanical properties, thermal properties and hydrolytic stability, and the application requirements in the high-end field are met.

Epoxy propane and propylene glycol are used as raw materials, an acid or alkaline substance is used as a catalyst, condensation reaction is performed to obtain DPG, a kettle type reactor and a tubular reactor are generally adopted, a large amount of heat is released in the reaction, so that an external heat exchanger is needed to remove heat, and the generated DPG is mixed back into the reactor in the material circulation process, so that the DPG is generated. The utility model relates to a dipropylene glycol reaction device, which aims to solve the technical problems of low DPG conversion rate, more by-product tripropylene glycol and the like of the existing dipropylene glycol reaction device, and the technical problem that the existing dipropylene glycol reaction device is low in price due to the fact that the byproduct tripropylene glycol accounts for about 15%-25% of the DPG, and the economical efficiency of the device is poor due to the small market price of the tripropylene glycol. The reaction device which is simple and convenient to operate and capable of reducing DPG backmixing is provided, and the by-product tripropylene glycol is reduced by 50% or above.

The invention discloses an anti-permeation glue and a preparation method and application thereof, 100 parts by weight of the anti-permeation glue comprises 15-25 parts of bio-based wax microspheres, 2-5 parts of a Pickering particle stabilizer, 30-50 parts of a multistage gradient crosslinking monomer, 0.5-1.5 parts of a water-based photoinitiator, 3-8 parts of a graphene oxide-chitosan hybrid dispersion liquid, 1-3 parts of a glycosyl gemini surfactant and the balance of deionized water. Wherein the multi-section gradient cross-linking monomer is prepared from ethyl acetoacetoxymethacrylate, tripropylene glycol diacrylate and bisphenol A epoxy diacrylate according to the mass ratio of (2 to 3) to (3 to 4) to (1 to 3). The oil-proof coating is based on 100% of water and has zero VOC, the air permeability loss is smaller than or equal to 10% on the premise that the oil-proof grade is larger than or equal to 6, molten drops are avoided during combustion, and the oil-proof coating can be coated at the low temperature of 60-70 DEG C.

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.

This invention relates to the field of coating technology, specifically to a printing coating for colored paper and its preparation method. In the preparation process, this invention incorporates dithiol dihydroxyacetic acid to increase the crosslinking points of the system, and trimethylolpropane tris(2-methyl-1-azacyclopropane propionate) containing an unstable aziridine three-membered ring to improve the degree of crosslinking. It also introduces isoborneol methacrylate to reduce internal stress, effectively balancing the crosslinking density and volume shrinkage of the system, resulting in a coating with excellent adhesion. Furthermore, this invention adds the bifunctional monomer 1,6-hexanediol diacrylate to make the network structure more uniform and provide anti-photooxidation properties, making the system less prone to oxidative discoloration. The addition of tripropylene glycol diacrylate reduces the risk of yellowing caused by small molecule migration. Therefore, the coating obtained in this way has significant anti-yellowing effects, preventing color distortion of colored paper and maintaining the appearance stability of the colored paper.

This invention discloses a preparation process for a moisturizing, anti-damage, and nourishing nail gel, belonging to the field of nail gel preparation technology. The process includes the following steps: mixing and stirring flexible aliphatic polyurethane acrylate, epoxidized soybean oil acrylate, isoborneol acrylate, and tripropylene glycol diacrylate; adding 2,4,6-trimethylbenzoyl-diphenylphosphine oxide and stirring; sequentially adding alkyl phosphate, polydimethylsiloxane, and an organosilicon defoamer and stirring; adding modified hydrolyzed keratin and stirring; adding modified plant squalane and stirring; adding modified calcium lactate and stirring; and adding a functional agent and stirring to obtain a mixture. The mixture is then vacuum degassed and filtered using a filter to remove impurities, yielding a moisturizing, anti-damage, and nourishing nail gel. In this invention, modified plant squalane is added, which is completely compatible with the gel layer and can form strong hydrogen bonds with the nail surface, locking the moisturizing ingredients firmly between the nail surface and the gel layer, preventing evaporation and loss, and achieving long-lasting moisture retention.

The invention relates to the technical field of pavement materials, in particular to an ultraviolet light curing asphalt pavement cold patch material which is composed of cold patch liquid and aggregate, the mass ratio of the cold patch liquid to the aggregate is (4-6): 100, the cold patch liquid comprises decolorized asphalt and an ultraviolet light curing resin system, and the ultraviolet light curing resin system comprises a curing agent and a curing agent. The mass ratio of the decolorized asphalt to the ultraviolet curing resin system is 100: (10-30), and the ultraviolet curing resin system is prepared from the following components in parts by mass: 50 to 70 parts of epoxy acrylate resin, 20 to 40 parts of tripropylene glycol diacrylate, 2 to 5 parts of 2, 4, 6-trimethylbenzoyl-diphenyl phosphine oxide and 0.5 to 1 part of dimethylethanolamine. The problems that a traditional cold patch material is long in curing time and slow in strength forming are solved, a specific ultraviolet curing resin system and decolorized asphalt are adopted, rapid curing is conducted under the illumination condition, high strength is provided for pavement pit slot repairing, vehicle loads can be effectively borne, the durability of a repaired pavement is enhanced, and the requirement for rapid traffic opening is met.

The application relates to a preparation method of a gradient modulus adaptive damping material and application of the gradient modulus adaptive damping material in vibration protection of precise components, and belongs to the field of damping materials. The method comprises the following steps: bottom layer hard and middle layer slightly soft viscoelastic material preparation: uniformly mixing polyurethane acrylate, tetra (3-mercaptopropionic acid) pentaerythritol ester and tripropylene glycol diacrylate, adding triethylamine and slowly stirring; the amount of the middle layer curing agent is reduced by 25 wt.% relative to the bottom; top layer soft viscoelastic material preparation: uniformly mixing polyurethane acrylate, tetra (3-mercaptopropionic acid) pentaerythritol ester and hydroxyethyl acrylate, adding triethylamine and slowly stirring; pouring the bottom layer hard viscoelastic material to realize semi-curing, pouring the middle layer slightly soft viscoelastic material to realize semi-curing, and pouring the top layer soft viscoelastic material to completely cure. Through a three-dimensional synergistic mechanism of gradient modulus, interface strengthening and dynamic response, the application breaks through the rigid-flex mismatch and energy dissipation efficiency bottleneck of the existing material in microstructure protection.

The invention discloses color bursting-resistant UV (ultraviolet) gloss oil, which is prepared from the following components in parts by weight: 20 to 30 parts of tripropylene glycol diacrylate; 0.5 to 1 part of trimethylolpropane triacrylate; 15 to 25 parts of a diluent; 15 to 20 parts of bifunctional modified polyurethane; 3-6 parts of difunctional modified epoxy acrylate; 12 to 16 parts of four-functional modified polyurethane acrylate; 3 to 6 parts of difunctional modified polyurethane acrylate; 8 to 12 parts of a photoinitiator; 0.05 to 0.15 part of wax powder; 0.005 part of a dispersant; 0.1 to 0.5 part of a leveling agent; and 3-5 parts of an active amine photosensitive accelerator. The invention also provides a preparation method of the color explosion-resistant UV gloss oil. According to the invention, bifunctional modified polyurethane, bifunctional modified epoxy acrylate, bifunctional modified polyurethane acrylate and tetrafunctional modified polyurethane acrylate are compounded with tripropylene glycol diacrylate and trimethylolpropane triacrylate to form a UV gloss oil matrix, so that a cured coating has hardness and toughness; the surface wear resistance is ensured, and meanwhile, the color explosion resistance of the 180-degree folding line at the flip cover of the protective layer of the hard cigarette case is effectively improved.

The application provides an ink, which comprises the following components in percentage by weight: solid material, 15-60%; UV curing resin, 25-50%; dual curing resin, 1-15%; monomer, 0-3%; composite photoinitiator, 5-12%; auxiliary agent, 1-4%; the solid material is anti-counterfeiting material, pigment and filler; the UV curing resin is a mixture of one or more than one of UV resins with absorption peaks matching the absorption spectrum of the composite photoinitiator; the dual curing resin is alicyclic epoxy acrylic resin with dual curing functional groups; the monomer is a mixture of one or more than one of trimethylolpropane triacrylate, tripropylene glycol diacrylate and ethoxypropyl ethylate; the composite photoinitiator is a mixture of one or more than one of acyl phosphine oxide, alpha-hydroxy ketone derivative, alpha-amino ketone derivative, benzoin and derivatives thereof, triaryl sulfonium salt and the like; and the auxiliary agent is a pigment wetting and dispersing auxiliary agent or a substrate wetting auxiliary agent.

This application relates to the field of electronic soldering materials technology, and discloses a water-soluble solder paste, its preparation method, and its application. The water-soluble solder paste of this application comprises a water-soluble flux and solder powder, with a mass ratio of water-soluble flux to solder powder of 1:(7~10). The water-soluble flux comprises the following components by weight: 45~55 parts film-forming agent; 8~12 parts organic acid activator; 6~8 parts thixotropic agent; 0.3~3 parts surfactant; 1~3 parts corrosion inhibitor; 3~5 parts antioxidant; and 25~35 parts solvent. The raw materials for preparing the film-forming agent include polyethylene glycol 400, sodium hydroxypropyl methylcellulose, VYBAR 825 polymer, triethylamine, 1,6-hexanediol, tripropylene glycol, and polyoxyethylene glycerol ether MF-200A. The water-soluble solder paste of this application, prepared by adding a specific film-forming agent and combining it with vacuum stirring, has advantages such as no need for organic solvent cleaning, moisture resistance, and long shelf life.

The invention discloses a high and low temperature resistant polyurethane primer and a preparation method and application thereof, and the high and low temperature resistant polyurethane primer comprises the following components in parts by mass: 30-40 parts of a polyurethane prepolymer, 2.5-7.7 parts of a chain extender, 60-70 parts of a solvent, 10-15 parts of carbon black, 86.3-220 parts of polyisocyanate and 0.2-0.35 part of a dehumidizer. The polyurethane prepolymer is synthesized by reaction of polyester polyol and isocyanate, and the content of NCO is 10%-15%; the chain extender is a mixture of a chain extender A and a chain extender B, the molar ratio of the chain extender A to the chain extender B is 2: 1-1: 2, the chain extender A is selected from 1, 4 butanediol (BDO), 1, 6 hexanediol (HDO) and ethylene glycol (EG), and the chain extender B is selected from diethylene glycol (DEG), dipropylene glycol (DPG) and tripropylene glycol (TPG). The high and low temperature resistant polyurethane primer can be used for bonding organic glass, an epoxy composite material and a sealant, the shear strength at 25 DEG C is greater than or equal to 5 MPa, the shear strength at 70 DEG C is greater than or equal to 3 MPa, and the shear strength at-40 DEG C is greater than or equal to 8 MPa.

The invention discloses a low-temperature photoresist material for a display panel and a preparation method of the low-temperature photoresist material, and belongs to the technical field of photoresist. The method comprises the following steps: modifying and dispersing silicon dioxide and 3-methacryloxy propyl trimethoxy silane in propylene glycol methyl ether acetate; synthesizing an acrylic prepolymer composed of acrylic resin, an acrylate derivative and tripropylene glycol diacrylate; mixing the modified nano silicon dioxide with the prepolymer, adding 1-hydroxycyclohexyl benzophenone, 1-(4-(dimethylamino) phenyl) ethanone, hafnium isopropoxide and N-hydroxynaphthalimide trifluoromethanesulfonate, and carrying out ultrasonic treatment and stirring to obtain a nano mixed solution; and carrying out vacuum distillation and high-speed shearing, and filtering to obtain the low-temperature photoresist. The material is cured at the temperature of 80-120 DEG C, the resolution ratio of 1-2 microns and LERlt are realized under the conditions of i-line exposure and TMAH development; and the pixel definition layer is suitable for flexible OLED (Organic Light Emitting Diode), LCD (Liquid Crystal Display) and Micro-LED pixel definition layers.

Provided are cleaning medium and a cleaning card impregnated, coated, treated or saturated with or including cleaning medium and more specifically to cleaning medium and cleaning cards having the capability of cleaning internal surfaces of machine-actuating mechanisms. The cleaning medium may include ethanol and tripropylene glycol n-butyl ether (TGBE). The TGBE may be present in an amount of about 50-70% by weight based on the total weight of the cleaning medium.

The present invention relates to heat-transfer composition comprising a base fluid comprising an alcohol selected from the group consisting of monoethylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, pentaethylene glycol, hexaethylene glycol, monopropylene glycol, 1,3-propanediol, dipropylene glycol, tripropylene glycol, tetrapropylene glycol, pentapropylene glycol, hexapropylene glycol, methanol, ethanol, propanol, butanol, tetrahydrofurfuryl, ethoxylated furfuryl, dimethyl ether of glycerol, sorbitol, 1,2,6-hexanetriol, trimethylolpropane, methoxyethanol, glycerol and mixtures thereof; a polyol amine with a molecular weight less than 500 g / mol; and a S-based compound. The invention further relates to methods of exchanging heat and uses of the heat transfer composition of the invention.

The ink-jet ink of the present invention comprises a solvent S having an SP value of 9.1-9.4, resin emulsion particles and water. It is preferable that the resin emulsion particles contain a (meth)acrylic polymer. It is also preferable that the resin emulsion particles contain a structural unit derived from styrene. It is also preferable that the solvent S is tripropylene glycol monomethyl ether and / or monoethylene glycol monoisopropyl ether.

The invention belongs to the technical field of hydrogel materials, and specifically relates to a self-regulating photo-curable cooling hydrogel and a preparation method and an application thereof. The self-regulating photo-curable cooling hydrogel comprises the following raw materials in parts by weight: 10-17 parts of cooling matrix, 18-33 parts of acrylamide-13C3, 27-42 parts of glycerol, 5 parts of TPGDA (tripropylene glycol diacrylate), 0.05-0.15 parts of crosslinking agent, and 0.1-0.3 parts of photoinitiator. By constructing a synergistic system of antifreeze protein and konjac glucomannan skeleton, the gelation of an isotope-labeled monomer and the purpose of self-regulating cooling are achieved. It can be used for preparing drug-loaded gel dressings, cooling gel dressings, and in-situ injectable gel products. The photo-curable crosslinking technology facilitates the rapid molding of gel dressings and improves the stability of active ingredients.

A method can be used for preparing 1,2-propanediol, dipropylene glycol, and tripropylene glycol. The method involves reacting propene with hydrogen peroxide containing nitrate, in the presence of a catalyst mixture containing a phase transfer catalyst and a heteropolytungstate, in a liquid reaction mixture containing an aqueous phase with a maximum apparent pH of 6 and an organic phase. The method then involves separating the reaction mixture into an aqueous phase containing 1,2-propanediol, dipropylene glycol, tripropylene glycol, and nitrate and an organic phase. The method further involves recycling at least part of the separated organic phase to the reaction; hydrogenating the separated aqueous phase using a heterogeneous hydrogenation catalyst to provide a hydrogenated aqueous phase with a reduced nitrate content; and recovering 1,2-propanediol, dipropylene glycol, and tripropylene glycol from the hydrogenated aqueous phase by a sequential multiple-step distillation.