公开(公告)号：KR1020000074116A

公开(公告)日：2000-12-05

申请号：KR1019990017833

申请日：1999-05-18

Applicant: 한국화학연구원

Inventor： 이창진 ,  강영구 ,  금동기 ,  정상현

IPC: C07C231/10

Abstract: PURPOSE: A novel imide acid dihydride prepared by reacting acid dihydride containing an amic acid group prepared by reacting acid dihydride and diamine, and an amic acid group, tetracarboxylic acid and tetracarboxylic acid dialkylester prepared from them each are provided which are useful for the manufacture of polyimide and as a hardening agent for epoxy. CONSTITUTION: An acid dihydride of formula (1) and (2) containing an amic acid or an imide group as a precursor of polyimide is produced by reaction of aromatic dihydride or cyclic acid dihydride and aromatic diamine at low temperatures in an inactive solvent. The acid anhydride is reacted with water to give tetracarboxylic acid of formula (3), which is reacted with alkyl alcohol to give tetracarboxylic acid dialkylester of formula (5).

Abstract translation: 目的：提供一种通过使含有通过酸二酐和二胺反应制备的酰胺酸基团的酸二酐与由它们制备的酰胺酸，四羧酸和四羧酸二烷基酯反应制备的酰亚胺二酸酐，它们可用于制备 聚酰亚胺和作为环氧树脂的硬化剂。 构成：通过芳族二酸酐或环状酸二酐和芳族二胺在惰性溶剂中的低温反应制备含有酰胺酸或酰亚胺基作为聚酰亚胺前体的式（1）和（2）的酸二酐。 将酸酐与水反应，得到式（3）的四羧酸，其与烷基醇反应，得到式（5）的四羧酸二烷基酯。

公开(公告)号：KR100332948B1

公开(公告)日：2002-04-18

申请号：KR1019990017833

申请日：1999-05-18

Applicant: 한국화학연구원

Inventor： 이창진 ,  강영구 ,  금동기 ,  정상현

IPC: C07C231/10

Abstract: 본발명은디아민과산 이무수물의반응에서생성되는신규한산 이무수물 (dianhydride) (화학식 1 및 2), 그것의테트라카르복시산 (tetracarboxylic acid) (화학식 3 및 4), 그것의테트라카르복시산디알킬에스테르 (tetrarcarboxylic acid dialkylester) (화학식 5 및 6) 및이들의제조방법에관한것이다. (1) (2) (3) (4) (5) (6) 상기식에서, R은,,,또는이고, R은,,,또는이고, R는탄소수 1 내지 10개의알킬기이다.