Abstract:
PURPOSE: A metal catalytic composition for directly manufacturing furfural derivatives based on wood-based biomass materials and a method for directly manufacturing the furfural derivatives from the wood-based biomass materials using the same are provided to reduce costs required for raw materials and to raise yield. CONSTITUTION: A metal catalytic composition for directly manufacturing furfural derivatives based on wood-based biomass materials includes MXn or MXn·H_2O. In MXn or MXn·H_2O, M is a metal element; X is one of a halogen element, triflate, nonaflate, mesylate, tosylate, or diazonium-based function group; and n is 1 to 3. The content of MXn or MXn·H_2O is 1 to 20 mol% based on 100 mol% of the wood-based biomass materials. The metal element is one of manganese(Mn), nickel(Ni), iron(Fe), chrome(Cr), copper(Cu), cobalt(Co), ruthenium(Ru), tin(Sn), zinc(Zn), aluminum(Al), cerium(Ce), lanthanum(La), neodymium(Nd), scandium(Sc), ytterbium(Yb), or indium(In).
Abstract:
PURPOSE: A manufacturing method of a phloroglucinol-based acrylate is provided to manufacture Phloroglucinol-based acrylate having a superior refractiveness, optical transmittance, adhesive property, coating property and high surface hardness with a high yield by a simple process. CONSTITUTION: A manufacturing method of Phloroglucinol-based acrylate comprises: a step oxidizing the trinitrotoluene thereby manufacturing a 2,4,6-trinitrobenzoic acid; a step deoxidizing the 2,4,6-trinitrobenzoic acid thereby manufacturing a 2,4,6-triaminobenzoic acid; a step manufacturing a phloroglucinol by a hydoxy group substitution reaction of the 2,4,6-triaminobenzoic acid; and a step insert the compound of the chemical formula 1 into the phloroglucinol, and then manufacturing a phloroglucinol-based acrylate by reacting the materials. The phloroglucinol-based acrylate is in the chemical formula 2.
Abstract:
PURPOSE: A manufacturing method of a phloroglucinol-based acrylate is provided to manufacture Phloroglucinol-based acrylate having superior refractiveness, optical transmittance, adhesive property, coating property and high surface hardness with a high yield by a simple process. CONSTITUTION: A manufacturing method of Phloroglucinol-based acrylate comprises: a step oxidizing the trinitrotoluene thereby manufacturing a 2,4,6-trinitrobenzoic acid; a step deoxidizing the 2,4,6-trinitrobenzoic acid thereby manufacturing a 2,4,6-triaminobenzoic acid; a step manufacturing a phloroglucinol by a hydoxy group substitution reaction of the 2,4,6-triaminobenzoic acid; and a step insert the compound of the chemical formula 1 into the phloroglucinol, and then manufacturing a phloroglucinol-based acrylate by reacting the materials. The phloroglucinol-based acrylate is in the chemical formula 2.
Abstract:
PURPOSE: A biomass-derived curable bicyclic compound and a method for preparing the same are provided to obtain curing material with low shrinkage. CONSTITUTION: A biomass-derived curable bicyclic compound is denoted by one of chemical formula I-V. The curable bicyclic compound has a basic framework and has one or two epoxide functional groups. A solvent-free curable composition contains the biomass-derived curable bicyclic compound and initiator or hardener. The initiator is a cationic curing initiator. A method for preparing the curing bicyclic compound comprises: a step of preparing maleic anhydride and furan from cellulose and hemicellulose; a step of performing Diels-Alder reaction and continuous reduction of the maleic anhydride and furan; a step of preparing an intermediate compound containing bicycle and two alcohol functional groups; and a step of reacting the intermediate compound and epichlorohydrin.
Abstract:
본 발명은 (a) 하기 화학식 1의 발색단과 trichlorotriazine을 결합시켜 색소중간체를 제조하는 단계, (b) 상기 색소중간체에 NH 4 OH를 첨가하여 Reactive Black 8 이 20 ~ 25 중량 % 포함된 염료합성액을 제조하는 단계, (c) 상기 염료합성액에 10 ~ 15 중량%의 염을 첨가하여 혼합액을 제조하는 단계 및 (d) 상기 혼합액에서 석출되는 Reactive Black 8 을 여과하는 단계를 포함하는 Reactive Black 8 의 생산을 위한 염석결정화 방법에 관한 것이다.
또한, 본 발명은 상기의 방법으로 생산된 Reactive Black 8 에 관한 것이다. 염석결정화, 염료, Reactive Black 8
Abstract:
The present invention relates to a method by which a ruthenium nanoparticle-carrying silica catalyst can be obtained from a synthetic solvent without a process of separating ruthenium nanoparticles. The present invention relates to the ruthenium nanoparticle-carrying silica catalyst produced by the method, and a method for producing gamma-butyrolactone by a hydrogenation reaction of succinic anhydride.
Abstract:
PURPOSE: An adhesive material is provided to have high adhesion, excellent light transmittance, and excellent hardness. CONSTITUTION: An adhesive material includes a compound represented by chemical formula 1. In chemical formula 1, each of R^1-R^6 is hydrogen, deuterium, a substituted or non-substituted C1-30 alkyl group, a substituted or non-substituted C6-30 aryl group, or a substituted or non-substituted C2-30 heteroaryl group. An adhesive composition includes the adhesive material and a photoinitiator. A curing method of the adhesive composition comprises a step of preparing the adhesive composition; a step of spreading the adhesive composition onto a substrate; and a step of curing the adhesive composition.
Abstract:
PURPOSE: A method for quickly screening Aspergillus terreus strains with high itaconic acid productivity is provided to quickly and efficiently select a strain with high itaconic acid productivity. CONSTITUTION: A method for quickly screening strains with high itaconic acid productivity comprises: a step of culturing Aspergillus terreus mutant strain on a PDA plate; a step of selecting strains with a colony diameter of 1.3 mm or greater; a step of culturing the selected strains in a PDA slant; and a step of selecting strains with a colony diameter of 10 mm or greater and a spore forming rate of 55% or more.