Abstract: The present invention pertains to the field of printing plates and discloses a planographic printing plate and preparation method. The planographic printing plate comprises: a metal substrate, a hydrophobic priming coat formed on a surface of the metal substrate and a hydrophilic graphic layer formed on the priming coat, wherein the hydrophobic priming coat is formed by a hydrophobic primer liquid through curing, the hydrophilic graphic layer is formed by inkjet-printing and curing a printing plate-making ink on the hydrophobic priming coat. The planographic printing plate according to the present invention may be printed by using water-based ink, so it can avoid the environmental pollution caused by using solvent-based ink during planographic printing. Further, through the cooperation of the hydrophobic priming coat formed by the hydrophobic primer liquid and the hydrophilic graphic layer formed by the printing plate-making ink, printed matters with desirable image resolution can be obtained.

Abstract: A coating material for an aluminum substrate for inkjet computer-to-plate and preparation method and use of same. The composition of the coating material is: high polymer 5-40 wt %; nano-sized and/or micro-sized oxide particles 5-30 wt %; organic solvent constituting the remainder. The high polymer is at least one selected from the group consisting of MMA-BMA-MA terpolymer resin, phenolic resin, epoxy resin, polyurethane, polyester, urea-formaldehyde resin, polyvinyl formal, polyvinyl butyral and gum arabic. The preparation method for obtaining the coating material is to mix the ingredients together and stir at room temperature. A spin coating method or a roll coating method is used to coat the coating material onto a clean aluminum substrate having not undergone electrolytic graining and anodic oxidation treatment, and then the substrate is baked, resulting in the required roughness.

Abstract: The present invention provides a class of molecular glass photoresist (I and II) comprising bisphenol A as a main structure and their preparation. The molecular glass photoresist is formulated with a photoacid generator, a cross-linking agent, a photoresist solvent, and other additives into a positive or negative photoresist. A photoresist with a uniform thickness is formed on a silicon wafer by spin-coating. The photoresist formulation can be used in modern lithography, such as 248 nm photolithography, 193 nm photolithography, extreme-ultraviolet (EUV) lithography, nanoimprint lithography, electron beam lithography, and particularly in the EUV-lithography technique.

Abstract: This invention provides a metallocene complex and the preparation method thereof and a catalyst composition. This catalyst composition comprises a metallocene complex represented by formula (I) and an organic boron salt. Compared to the prior art, the catalyst used in this invention, which is the metallocene complex represented by formula (I), does not contain any side chain, and the coordination space of the central metal has a large opening degree. Therefore, the catalytic activity for more sterically hindered monomers is higher, and the comonomer incorporation is also higher. Furthermore, the metallocene complex represented by formula (I) used in this invention is a heterocyclic ring fused cyclopentadienyl ligand. Heterocyclic rings have relatively strong electron-donating capacity. By fusing a cyclopentadienyl group using heterocyclic rings, it is possible to change the electronic effect of the metal center and in turn increase the activity of catalyst.

Abstract: A printing plate, its preparation method, and a printing method. The printing plate comprises a substrate, an ink repulsive layer attaching to the surface of the substrate and a graphic-text layer attaching to partial surface of the ink repulsive layer, the ink repulsive layer comprises fluoropolymer and silicon-containing nano-particle dispersed in the fluoropolymer, the fluoropolymer comprises fluorine-containing structural unit and optional acrylate-based structural unit. The present invention constitutes a graphic-text area which is affinity to water-based printing ink and an area without graphic-text which is repulsion to water-based printing ink on the surface of the planographic printing plate.

Abstract: A planographic printing system and method. The planographic printing system comprises an ink supply device, a planographic printing plate and a printing stock, the planographic printing plate gains ink from the ink supply device, so as to transfer graphic-text information from the planographic printing plate to surface of the printing stock, the planographic printing plate comprises a substrate, an ink repulsive layer attaching to the surface of the substrate and a graphic-text layer attaching to partial surface of the ink repulsive layer, the ink repulsive layer comprises fluoropolymer and silicon-containing nano-particle dispersed in the fluoropolymer, the fluoropolymer comprises fluorine-containing structural unit and optional acrylate-based structural unit.

Abstract: The present invention discloses a method for preparing nano-copper powder. The method disclosed in the present invention comprises: (1) providing a dispersion solution, the dispersion solution contains at least one copper salt precursor and at least one disperser, the disperser is dissoluble in both water and weak solvents; (2) providing a reducer dispersion solution, the reducer dispersion solution contains at least one reducer; (3) contacting the reducer dispersion solution with the dispersion solution provided by step (1) in a condition enough to reduce the copper salt precursor by the reducer into elementary copper; (4) separating copper nano-particles from reaction solution obtained by step (3), and drying separated copper nano-particles by spray drying, so as to obtain the nano-copper powder. The nano-copper powder prepared by the method in accordance with the present invention is dispersible in both water and environment-friendly weak solvents.

Abstract: A method for preparing nano-silver powder dispersible in environment friendly weak solvents, and an electrically conductive ink comprising the nano-silver powder are disclosed. The disclosure describes a disperser dissoluble in water and weak solvents and an alcohol amine as reducing agent to prepare mono-dispersed nano-silver, and employs ultrafiltration for purification and spray drying process to obtain a nano-silver powder dispersible in weak solvents, and thereby obtain an eco-solvent nano-silver electrically conductive ink. The electrically conductive ink in accordance with the disclosure has advantages of high safety, low volatility, low toxicity, high flash point, resistant to ultraviolet radiation and moisture etc., and can be used with uncoated bearing substrates, and is suitable for use in outdoor environments.

Abstract: An ink used for direct inkjet printing to plate based on nanometer material and a method for preparing same. Of the baseline total amount of the ink, 5 to 30 wt % is of film-forming resin, 0.01 to 5 wt % is of nanometer or micrometer dye, 30 to 60 wt % is of organic solvent, 0.01 to 5 wt % is of humectant, and water provides the balance; these ingredients are stirred and mixed at room temperature, and after the film-forming resin is completely dissolved, impurities and/or insoluble substances in the present invention are removed by means of multi-level filtering, and the obtained filtrate is the present ink. The ink in the present invention is sprayed on a metal base material surface by an inkjet printer to form a printing pattern which, after curing, can be directly printed on the machine, thus reducing chemical pollution and post-processing processes, while a press run of the printing plate can be up to 100,000 copies at a resolution of up to 175 lpi.

Abstract: Quinazoline derivatives represented by general formula (1) and quinazoline complexes as protein kinase inhibitors, and their preparation methods are provided. Wherein, in general formula (1), at least one of R and R? is a group containing an atom capable of coordinating with noble metals, m and n are either the same or different and are integers from 0 to 5. Said quinazoline complex as protein kinase inhibitor is formed by coordination compound containing noble metal and said quinazoline derivative ligand capable of coordinating with noble metal in the coordination compound.

Abstract: The present invention discloses a phosphorus-silicon synergistic flame retardant and the preparation method and use thereof. The phosphorus-silicon synergistic flame retardant provided by the present invention has a structural general formula shown as formula I. A new type of compound containing phosphorus and silicon is prepared by the present invention using the cheap organic boron catalyst, and employing the addition reaction of diphenyl phosphine oxide and derivatives thereof with silicone containing carbon-carbon double bond. Such compounds have the properties of hydrolytic resistance, easy purification, and low synthesis cost, etc. Phosphorus and silicon elements in the molecular structures of such compounds both can act as the flame retardants solely, and meantime can work synergistically, thereby enduing the common polymeric materials with the excellent flame retardant property.

Abstract: A water-based ink for use in a computer-to-plate inkjet printing and a preparation method therefor. A polymer of 5 to 40 wt %, an additive of 0.01 to 10 wt %, a dye or pigment of 0.01 to 10 wt %, an organic solvent of 1 to 30 wt %, an anti-foaming agent of 0 to 5 wt %, and deionized water are stirred and mixed at room temperature. When the polymer is dissolved, the mixed solution is filtered. The filtrate is the water-based ink. The water-based ink is sprayed via a computer-to-plate machine onto a surface of a metal substrate (which may be an aluminum plate, a zinc plate, or a copper plate) to form a graphic region. A printing plate allowing for computer-to-plate printing is acquired after solidification. The printing plate acquired is allowed to achieve a halftone dot reproduction rate between 2 and 99% and a recognition rate of 175 lpi.

Abstract: Provided is a method of forming large-area directionally aligned nanowires on a silicon wafer surface with hydrophobic silicon pillars so as to form microelectrode-pair arrays, which belongs to the field of electronic circuit.

Abstract: Disclosed is a method for preparing optically pure (+)-ambrisentan and (+)-darusentan, comprising: firstly catalyzing the asymmetric epoxidation of a ?-unsaturated alkene using a chiral ketone derived from fructose or a hydrate thereof as a catalyst, and then subjecting the product to an epoxy compound ring-opening reaction and substitution reaction successively to obtain optically pure (+)-ambrisentan and (+)-darusentan.

Abstract: A method for preparing a metal substrate for inkjet CTP, comprising: treating a metal substrate by anodizing or non-anodizing (such as sandpaper burnishing, sand blasting, polishing, or brushing), and then applying a hydrophilic polymer paint on the surface of the metal substrate. Due to the existence of nano-size or micron-size oxide particles in the hydrophilic polymer paint, the metal substrate has high specific surface energy, while the metal substrate has a certain roughness, therefore the metal substrate has ink absorbency and good abrasive resistance. The metal substrate can reduce the spread of ink droplets and produces print image having better resolution and definition. The non-anodizing method can avoid environmental pollution which is caused by waste acid and waste alkali discharge of anodizing method.

Abstract: The present invention provides a class of molecular glass photoresist (I and II) comprising bisphenol A as a main structure and their preparation. The molecular glass photoresist is formulated with a photoacid generator, a cross-linking agent, a photoresist solvent, and other additives into a positive or negative photoresist. A photoresist with a uniform thickness is formed on a silicon wafer by spin-coating. The photoresist formulation can be used in modern lithography, such as 248 nm photolithography, 193 nm photolithography, extreme-ultraviolet (EUV) lithography, nanoimprint lithography, electron beam lithography, and particularly in the EUV-lithography technique.

Abstract: The present invention relates to a sulfur-containing composite, comprising a conductive microporous substrate and sulfur with chain structure loaded into said conductive microporous substrate; as well as an electrode material and a lithium-sulfur battery comprising said sulfur-containing composite.

Abstract: Disclosed are a kind of ink used for ink-jet computer-to-plate (CTP) technology and the preparation method thereof. The ink comprises, in mass percent, 5% to 20% of cosslinkable resin, 5% to 25% of light solvent, and 55% to 90% of deionized water. The preparation method includes: mixing the components with stirring at room temperature; multistage filtering for removing insoluble substance and impurity in mixed solution after the crosslinkable resin being completely dissolved in the solvent; and thus to obtain the ink. An image with high resolution can be formed upon printing the ink on a treated aluminum plate and thermocuring. The aluminum plate can be printed directly by a printer, which reduces post treatment.

Abstract: Disclosed in the present invention is a method for preparing a (?)-clausenamide compound of formula (I), comprising: firstly, catalyzing the asymmetrical epoxidation of trans-cinnamate using a chiral ketone derived from fructose or a hydrate thereof as a catalyst, and then subjecting the product to amidation, oxidation, cyclization and reduction successively to finally obtain the optically pure (?)-clausenamide compound of formula (I).

Abstract: An ink for inkjet computer-to-plate and a preparation method of the same are provided. Calculated in mass percentage based on the total mass of the ink, the ink comprises 10%˜30% of cross-linkable resin, 10%˜35% of solvent with a low boiling point, 5%˜30% of poor solvent with a high boiling point and 5%˜75% of bulk solvent. The preparation method comprises the following steps: mixing the above components and agitating at room temperature; after the cross-linkable resin is dissolved, ball milling and filtrating to remove insoluble substance and/or impurities in the liquid obtained by the ball milling. The ink can be formed into an image by printing on the treated surface of aluminum plate using ink-jet printer, and after heat cured, it can form an image with a high resolution and be used to print directly on machine, thus reducing post treatment process and obtaining the plate of ink-jetting direct plate-making.