Abstract: There is provided a resin composition for a thermal radiation board including: 20 wt % to 50 wt % of a liquid crystal oligomer represented by particular Chemical Formulas; 10 wt % to 40 wt % of an epoxy resin; and 10 wt % to 40 wt % of an inorganic filter.

Abstract: Disclosed herein are an epoxy resin composition, an insulating film using the same, and a multilayer printed circuit board; more particularly, an epoxy resin composition including a liquid crystal capable of lowering the coefficient of thermal expansion, improving chemical resistance, and increasing the glass transition temperature, an insulating film or prepreg manufactured by using the epoxy resin composition, and a multilayer printed circuit board including the insulating film or prepreg.

Abstract: Disclosed herein are an inductor and a method of manufacturing the same. More specifically, in the inductor according to the present invention, a coil with a fine pattern may be formed, and an insulating resin composite including liquid crystal oligomer for reducing occurrence of deformation of the coil may be used for an insulating substrate.

Abstract: Disclosed herein is a composition for forming a substrate, comprising: a liquid crystal thermosetting oligomer having one or more soluble structural units in the main chain thereof and having thermosetting groups at one or more ends of the main chain thereof; and a metal alkoxide compound having reaction groups which can be covalently bonded with the thermosetting groups.

Abstract: Disclosed herein is a composition for forming a substrate, comprising: a liquid crystal thermosetting oligomer having one or more soluble structural units in the main chain thereof and having thermosetting groups at one or more ends of the main chain thereof; and a metal alkoxide compound having reaction groups which can be covalently bonded with the thermosetting groups.

Abstract: An asymmetric support membrane can be prepared by using a phase separation method. The method includes immersing a polymer solvent solution into water. The polymer solution is made by dissolving 15 to 35% by weight of the polymer into a solvent that lets the polymer solution become a gel at a temperature of 0 to 50° C. The solution is then allowed to gel and brought into a final membrane form in water for phase separation and formation of the asymmetric support membrane. The polymer may be poly(vinyl chloride), polyethersulfone, polyetherimide and polyamic(methylester). The solvent is &ggr;-butyrolactone alone as a major solvent or is a mixed solvent with N-methyl-2-pyrrolidone as a cosolvent. The asymmetric support membrane is a porous support membrane of a sponge form having open pores that are connected to one another with a narrow pore size distribution. Thus, the asymmetric support membrane has an improved permeance and mechanical strength.