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    • 1. 发明公开
    • 지방족 고리계 측쇄를 갖는 액정배향막용 폴리아믹산 유도체
    • 用于液晶对准层的聚氨酯基链的聚酰胺衍生物
    • KR1020030027250A
    • 2003-04-07
    • KR1020010060354
    • 2001-09-28
    • 한국화학연구원
    • 이미혜최길영원종찬김용운김효주유효진박동원오재민이범진
    • C08G73/10
    • PURPOSE: A polyamic acid derivative having an aliphatic ring-based side chain for a liquid crystal alignment layer is provided, to improve the heat resistance, the surface strength characteristic, the transparency, the pretilt angle of liquid crystal and the solubility of the polyamic acid derivative. CONSTITUTION: The polyamic acid derivative is represented by the formula 1, wherein n is an integer of 1-300. Preferably the polyamic acid derivative has an intrinsic viscosity of 0.3-1.5 dL/g, a molecular weight of 10,000-150,000, a glass transition temperature of 230-400 deg.C, a pretilt angle of 4-89.5 degree, and an imidization temperature of 200-300 deg.C. The polyamic acid derivative is soluble in dimethylacetamide, dimethylformamide, N-methyl-2-pyrrolidone, tetrahydrofuran, chloroform, acetone, ethyl acetate or γ-butyrolactone.
    • 目的:提供具有用于液晶取向层的脂族环状侧链的聚酰胺酸衍生物,以提高耐热性,表面强度特性,透明度,液晶预倾角和聚酰胺酸的溶解度 衍生物。 构成:聚酰胺酸衍生物由式1表示,其中n为1-300的整数。 优选聚酰胺酸衍生物的特性粘度为0.3-1.5dL / g,分子量为10,000-150,000,玻璃化转变温度为230-400℃,预倾角为4-89.5度,酰亚胺化温度 200-300摄氏度 聚酰胺酸衍生物可溶于二甲基乙酰胺,二甲基甲酰胺,N-甲基-2-吡咯烷酮,四氢呋喃,氯仿,丙酮,乙酸乙酯或γ-丁内酯。
    • 2. 发明授权
    • 지방족 고리계 측쇄를 갖는 액정배향막용 폴리아믹산 유도체
    • 지방족고리계측쇄갖갖는액정배향막용폴리아믹산유도체
    • KR100468052B1
    • 2005-01-24
    • KR1020010060354
    • 2001-09-28
    • 한국화학연구원
    • 이미혜최길영원종찬김용운김효주유효진박동원오재민이범진
    • C08G73/10
    • PURPOSE: A polyamic acid derivative having an aliphatic ring-based side chain for a liquid crystal alignment layer is provided, to improve the heat resistance, the surface strength characteristic, the transparency, the pretilt angle of liquid crystal and the solubility of the polyamic acid derivative. CONSTITUTION: The polyamic acid derivative is represented by the formula 1, wherein n is an integer of 1-300. Preferably the polyamic acid derivative has an intrinsic viscosity of 0.3-1.5 dL/g, a molecular weight of 10,000-150,000, a glass transition temperature of 230-400 deg.C, a pretilt angle of 4-89.5 degree, and an imidization temperature of 200-300 deg.C. The polyamic acid derivative is soluble in dimethylacetamide, dimethylformamide, N-methyl-2-pyrrolidone, tetrahydrofuran, chloroform, acetone, ethyl acetate or γ-butyrolactone.
    • 目的:提供一种用于液晶取向层的具有脂肪族环系侧链的聚酰胺酸衍生物,以提高耐热性,表面强度特性,透明性,液晶的预倾角和聚酰胺酸的溶解性 衍生物。 构成:聚酰胺酸衍生物由式1表示,其中n是1-300的整数。 优选聚酰胺酸衍生物的特性粘度为0.3-1.5dL / g,分子量为10,000-150,000,玻璃化转变温度为230-400℃,预倾角为4-89.5度,酰亚胺化温度 200-300℃。 聚酰胺酸衍生物可溶于二甲基乙酰胺,二甲基甲酰胺,N-甲基-2-吡咯烷酮,四氢呋喃,氯仿,丙酮,乙酸乙酯或γ-丁内酯。