Abstract:
A new novolac curing agent with an alkoxysilyl group exhibiting excellent heat resistance such as a low CTE and an high Tg when a composite is formed, a preparing method of the same, a composition including the same, a cured article, and an use thereof, are provided. The new novolac curing agent having an alkoxysilyl group of Formulae I-1 to I-4, a preparing method of the new novolac curing agent by alkenylation and alkoxysilylation of the novolac curing agent, a preparing method of the new novolac curing agent by alkoxysilylation of a novolac curing agent, a composition including a novolac curing agent having an alkoxysilyl group of Formulae I-1 to I-4, a cured article and a use thereof, are provided. A composite including a novel novolac curing agent having an alkoxysilyl group exhibits a low CTE and a high glass transition temperature.
Abstract:
The present invention relates to the manufacture of a high capacity electrode by synthesizing an excellent Li2MnO3-based composite material Li(LixNiyCozMnwO2) to improve the characteristics of an inactive Li2MnO3 material with a specific capacity of about 460 mAh/g. Here, a manufacturing method of a cathode material for a lithium secondary battery uses a Li2MnO3-based composite material Li(LixNiyCozMnwO2) by reacting a starting material wherein a nickel nitrate solution, a manganese nitrate solution and a cobalt nitrate solution are mixed, with a complex agent by co-precipitation.
Abstract translation:本发明涉及通过合成优异的Li 2 MnO 3基复合材料Li(Li x Ni y Co z Mn n O 2 O 2)来制造高容量电极,以改善比电容为约460mAh / g的无活性Li 2 MnO 3材料的特性。 这里,锂二次电池用正极材料的制造方法使用混合有硝酸镍溶液,硝酸锰溶液和硝酸钴溶液的原料与Li2MnO3系复合材料Li(Li x Ni y Co z Mn n O 2 O 2) 复合剂通过共沉淀。
Abstract:
Provided is a method for preparing 5-hydroxymethyl-2-furfural using an acid catalyst in the presence of an ethylene glycol-based solvent. The method for preparing the 5-hydroxymethyl-2-furfural involves using a linear or cyclic ethylene glycol-based compound as a solvent and producing the 5-hydroxymethyl-2-furfural from fructose, in the presence of the acid catalyst, thereby reducing the dependency on petroleum in response to greenhouse gas emission regulations. Also, a high yield of the 5-hydroxymethyl-2-furfural can be obtained from fructose, and the solvent and the catalyst can be efficiently separated, collected, and reused after a reaction has completed.
Abstract:
The present invention relates to a poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer having an improved mechanical property and heat resistance, and a method for preparing the same. More particularly, the present invention relates to a poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer, which includes an ethylene-aliphatic diene copolymer as a soft segment and a polystyrene-based polymer grafted to the soft segment as a hard segment, and a method for preparing the same.The poly(ethylene-aliphatic diene)-g-polystyrene-based copolymer has elasticity equivalent to that of SBS or SEBS, and improved mechanical properties such as tensile strength and heat resistance, thereby being used as a substituent for SBS or SEBS.
Abstract:
The present invention relates to a medical nonwoven fabric comprising gelable cellulose derivative short-cut fibers as prepared by the paper making process, a preparation method thereof, and an adhesion prevention barrier using the same. The present invention provides a single phase of medical nonwoven fabric comprising gelable cellulose derivative short-cut fibers, to induce capillary action of micropores formed between the fibers and thereby control the gelation time, and provides a composite nonwoven fabric formed by laminating a nonwoven fabric layer comprising a different kind of biodegradable polymer material not susceptible to gelation on the single-phase of medical nonwoven fabric comprising gelable cellulose derivative short-cut fibers, thereby improving dimensional stability and convenience of surgical procedure. The present invention further provides a dyed medical nonwoven fabric to improve visibility, allowing easiness of recognizing the placement or location of the medical nonwoven fabric. Further, the single-phase nonwoven fabric or the composite nonwoven fabric, which makes it possible to efficiently control the gelation time by way of capillary action of the micropores formed between the fiber in the nonwoven fabric, can also be used as an adhesion prevention barrier with improved convenience of surgical procedure and post-surgical adhesion, in contrast to the conventional knit or film type adhesion prevention barrier.
Abstract:
The present invention relates to a method for manufacturing a patterned retarder including an optical alignment layer or a first domain optically aligned in a first direction and a second domain optically aligned in a second direction. According to the invention, it is possible to improve productivity and to maximize optical alignment efficiency by reducing an optical alignment processing time using polarized pulse UV.
Abstract:
The present disclosure relates to a method for preparing a disubstituted urea and carbamate compounds simultaneously through a one-pot reaction of an amine, carbon dioxide and an alkylene oxide compound in the presence of an ionic liquid-based complex catalyst system containing indium. In accordance with the present disclosure, a disubstituted urea and carbamate compounds can be prepared simultaneously at high yield. In addition, the ionic liquid-based catalyst containing indium according to the present disclosure is economical because it can be reused several times.
Abstract:
Disclosed are a method of forming a seed layer on a high-aspect ratio via and a semiconductor device having a high-aspect ratio via formed thereby. Thus, efficient Cu filling-plating is possible, and plating adhesion of the seed layer to filling-plated Cu can be simply and profitably enhanced, thus imparting high durability upon forming metal wiring for electronic components. Moreover, stress of the seed layer can be lowered, thereby enhancing plating adhesion.
Abstract:
An embedded measurement device that is capable of measuring the component and a composition of a multi-phase flow fluid flowing in a pipe. The embedded measurement device includes: a high-pressure pipe tube in which the multi-phase flow fluid flows; a Raman probe that is partially inserted inside the high-pressure pipe tube and has an optical lens; and a Raman peak analysis unit that is connected to another part of the Raman probe. The device for measuring the composition of the multi-phase flow fluid measures a Raman peak intensity value of the multi-phase flow fluid in the high-pressure pipe tube by using the Raman probe, thereby determining the composition of the fluid.
Abstract:
This disclosure synthesizes an anodic composite material Li(LixNiyCozMnwO2+α) of Li2MnO3 series whose theoretical capacity is a level of about 460 mAh/g, and to produce an electrode of a high capacity using the synthesized anodic composite material. Also provided is a method for charging and discharging the electrode. Here, the method for producing an anodic composite material for a lithium secondary battery includes the steps of: mixing a nickel nitrate solution, a manganese nitrate solution, and a cobalt nitrate solution to produce a starting material solution; and mixing the starting material solution with a complexing agent so as to produce an anodic composite material Li(LixNiyCozMnwO2+α) of Li2MnO3 series by means of coprecipitation.
Abstract translation:本公开内容合成了理论容量为约460mAh / g的Li2MnO3系列的阳极复合材料Li(LixNiyCozMnwO2 +α),并使用合成的阳极复合材料制造高容量的电极。 还提供了一种用于充电和放电电极的方法。 这里,用于制造锂二次电池用阳极复合材料的方法包括以下步骤:将硝酸镍溶液,硝酸锰溶液和硝酸钴溶液混合以制备原料溶液; 并将原料溶液与络合剂混合,通过共沉淀法制备Li2MnO3系列的阳极复合材料Li(Li x Ni y Co z Mn O 2 +α)。