Abstract:
PURPOSE: Aminoalkoxy naphthalenes are provided to improve thermal expansion property of an epoxy resin compound when applied to an epoxy resin composite and to ensure improved dimensional stability and processability. CONSTITUTION: Aminoalkoxy naphthalenes are represented by chemical formula 1-4. A method for preparing aminoalkoxy naphthalene comprises the steps of: performing protection for an amine group of an amine compound; and reacting one naphthalenic compound of chemical formula 5-8 with the protected amine compound; and performing deprotection for the amine protection group.
Abstract:
PURPOSE: A naphthalene-based epoxy resin and an epoxy resin composition including thereof are provided to minimize the size change by the temperature change, and to improve the workability. CONSTITUTION: A naphthalene-based epoxy resin contains more than three naphthalene system units inside a core. The naphthalene-based epoxy resin is marked with chemical formula 1. In the chemical formula 1, n is an integer of 0~10. The naphthalene system units formed with more than two other kinds, are selected from the group consisting of compounds marked with chemical formula 3-1 and 3-2. In the chemical formula 3-2, R is either a simple bond, or a C~C5 alkanediyl group.
Abstract:
PURPOSE: A lyotropic chromonic liquid crystal composition is provided to obtain an optical film with the high surface hardness by enhancing the molecule cohesion of a liquid crystal dye and a base film. CONSTITUTION: A lyotropic chromonic liquid crystal composition contains a basic chromonic liquid crystalline compound including a basic functional group and an acid monomer including an acidic functional group. The basic chromonic liquid crystalline compound is formed with a structure which the basic functional group is surrounding a hydrophobic core(10) composed of an aromatic molecule. The basic functional group expresses a nitrogen ion by reacting with the acid monomer.
Abstract:
아이소소바이드 유도체 화합물, 이를 포함하는 광경화성 조성물 및 투광성 복합시트가 개시된다. 본 발명에 의해 제공되는 아이소소바이드 유도체 화합물을 포함하는 열경화성 수지 조성물은 조성물의 굴절율 및 점도를 용이하게 조절할 수 있어 투광성이 우수한 유리섬유 복합체를 얻기 용이할 뿐만 아니라, 열적 안정성이 높아 각종 광학 전자 부재로 적용하기에 유리하다.