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    • 1. 发明授权
    • Soluble polyimide resin and process of preparation of the same
    • 可溶性聚酰亚胺树脂及其制备方法
    • US6031067A
    • 2000-02-29
    • US86387
    • 1998-05-29
    • Kil-Yeong ChoiMi-Hie YiWenxi Huang
    • Kil-Yeong ChoiMi-Hie YiWenxi Huang
    • C08G73/00C08G73/10C08G69/26
    • C08G73/10
    • The invention herein relates to a soluble polyimide resin and the process of preparation of the same, wherein aromatic tetracarboxylic dianhydride and aromatic diamine having an alicyclic group with various structures of substituted alkyl groups are used to yield a novel form of a polyimide resin, which has superior heat-resistance, solubility and transparency.More specifically, the invention herein relates to a novel polyimide resin having excellent heat-resistance and solubility, which is prepared by means of reacting aromatic diamine monomers having a novel chemical structure with various types of aromatic tetracarboxilic acid dianhydrides, in stead of aromatic diamine used for the preparation of the conventional polyimide resin. As a result, the polymers so obtained had the glass transition temperature of 250.degree. C..about.400.degree. C. and showed a increase in solubility in proportion to the increase in volume of the alkyl group. Further, the polymers herein showed superior solubility at room temperature in various types of organic solvents, e.g., THF.
    • 本发明涉及一种可溶性聚酰亚胺树脂及其制备方法,其中使用芳族四羧酸二酐和具有各种取代烷基结构的脂环族基团的芳族二胺以产生新型的聚酰亚胺树脂,其具有 优异的耐热性,溶解性和透明度。 更具体地说,本发明涉及具有优异的耐热性和溶解性的新型聚酰亚胺树脂,其通过使具有新型化学结构的芳族二胺单体与各种类型的芳族四羧酸二酐反应而制备,而不是使用芳族二胺 用于制备常规的聚酰亚胺树脂。 结果,如此获得的聚合物的玻璃化转变温度为250℃,差异为400℃,并且与烷基体积的增加成比例地显示出溶解度增加。 此外,本文的聚合物在各种类型的有机溶剂例如THF中在室温下表现出优异的溶解度。
    • 5. 发明授权
    • Soluble polyimide resin having alkoxy substituents and the preparation
method thereof
    • 具有烷氧基取代基的可溶性聚酰亚胺树脂及其制备方法
    • US6046303A
    • 2000-04-04
    • US151722
    • 1998-09-11
    • Kil-Yeong ChoiMi-Hie YiMoon-Young JinJin-Tae JungJeong-Ghi KooJae-Eun Cho
    • Kil-Yeong ChoiMi-Hie YiMoon-Young JinJin-Tae JungJeong-Ghi KooJae-Eun Cho
    • G02F1/1337C08G73/10
    • C08G73/10C08G73/1042G02F1/133723
    • The invention herein relates to a soluble polyimide resin for a liquid crystal alignment layer and the manufacturing method thereof, wherein a mixture of aliphatic tetracarboxylic acid dianhydrides and aromatic diamine having aliphatic side chains are used to yield a soluble polyimide resin which has superior heat-resistance, solubility, surface hardness, transparency and liquid crystal alignment capacity.The soluble polyimide resin having alkoxy substituents, for a liquid crystal layer, according to the present invention, is manufactured by adding a mixture of dioxotetrahydrofuran 3-methylcyclohexene-1,2-dicarboxylic dianhydride, which is an aliphatic tetracarboxylic acid dianhydride and aromatic tetracarboxylic acid dianhydride to a mixture of aromatic diamine, and said dioxotetrahydrofuran 3-methylcyclohexene- 1,2-dicarboxylic dianhydride is used in the amount of 50 to 99 mol % to the total amount of anhydrides.The polyimide resin according to the present invention not only has superior heat-resistance and mechanical characteristics but also excellent solubility and transparency, which could be applicable as a liquid crystal alignment layer for the TFT-LCD requiring difficult processing condition such as a low temperature and vigorous rubbing processing. Further, the polyimide resin may be useful as basic heat resistant structural materials for advanced industry.
    • 本发明涉及一种用于液晶取向层的可溶性聚酰亚胺树脂及其制造方法,其中使用具有脂肪族侧链的脂肪族四羧酸二酐和芳香族二胺的混合物,得到耐热性优异的可溶性聚酰亚胺树脂 ,溶解度,表面硬度,透明度和液晶取向能力。 通过将作为脂肪族四羧酸二酐的二氧代四氢呋喃-3-甲基环己烯-1,2-二甲酸二酐和芳香族四羧酸的混合物加入本发明的液晶层中,具有烷氧基取代基的可溶性聚酰亚胺树脂 二酐与芳族二胺的混合物和所述二氧四氢呋喃-3-甲基环己烯-1,2-二羧酸二酐的用量相对于酸酐总量为50〜99摩尔%。 根据本发明的聚酰亚胺树脂不仅具有优异的耐热性和机械特性,而且具有优异的溶解性和透明性,其可以应用于需要难处理条件如TFT的LCD-LCD的液晶取向层,如低温和 有力的摩擦加工。 此外,聚酰亚胺树脂可用作先进工业的基础耐热结构材料。
    • 8. 发明授权
    • Process for preparing polyamideimide resins by direct polymerization
    • 通过直接聚合制备聚酰胺酰亚胺树脂的方法
    • US5955568A
    • 1999-09-21
    • US956923
    • 1997-10-23
    • Kil-Yeong ChoiDong-Hack SuhMi-Hie YiYoung-Taik HongMoon-Young Jin
    • Kil-Yeong ChoiDong-Hack SuhMi-Hie YiYoung-Taik HongMoon-Young Jin
    • C08G73/14C08G69/28
    • C08G73/14
    • The disclosure describes a process for preparing a polyamideimide resin having high molecular weight in a simple manner wherein major problems of the prior processes such as low heat resistance and low melt flowability are improved. The process comprises condensation of an aromatic tricarboxylic acid anhydride and an aromatic diamine in a polar solvent, subjecting the resulting diimidedicarboxylic acid to acyl halogenating agent treatment to give an intermediate having good reactivity at low temperature, and then subjecting the latter to direct polymerization by using diamine as a nucleophilic agent to give a polyamideimide resin having high molecular weight. The polyamideimide resin prepared by the present invention can be used as major heat resistant structural material in advanced industries and as paint, sheet, adhesives, sliding material, fiber and film having heat resistance.
    • 本公开内容描述了以简单的方式制备具有高分子量的聚酰胺酰亚胺树脂的方法,其中诸如低耐热性和低熔融流动性的现有方法的主要问题得到改善。 该方法包括在极性溶剂中将芳族三羧酸酐和芳族二胺缩合,将所得二酰亚胺二羧酸进行酰卤处理,得到在低温下具有良好反应性的中间体,然后使用后者通过使用 二胺作为亲核剂,得到具有高分子量的聚酰胺酰亚胺树脂。 本发明制备的聚酰胺酰亚胺树脂可用作先进工业中的主要耐热结构材料,可用作具有耐热性的油漆,片材,粘合剂,滑动材料,纤维和薄膜。
    • 9. 发明授权
    • Process for preparing polyamideimide resins having high molecular weight
    • 制备高分子量聚酰胺酰亚胺树脂的方法
    • US5532334A
    • 1996-07-02
    • US339391
    • 1994-11-14
    • Kil-Yeong ChoiDong-Hack SuhMi-Hie YiYoung-Taik HongJong-Chan Won
    • Kil-Yeong ChoiDong-Hack SuhMi-Hie YiYoung-Taik HongJong-Chan Won
    • C08G73/14H01B3/30C08G69/26
    • C08G73/14H01B3/303
    • A process for preparing polyamideimide resins having high molecular weights as described wherein major problems of prior art processes such as low heat resistance and low melt flowability are improved. Polyamideimide resins having an intrinsic viscosity of 0.4 to 1.50 dl/g as measured on a solution of dimethylacetamide as a solvent at a concentration of 0.5 g/dl at 30.degree. C., are prepared by reacting an aromatic tricarboxylic acid anhydride with an aromatic diamine in N-methyl pyrrolidone solvent in the presence of a first catalyst selected from a group consisting of thionyl chloride, p-toluenesulphonly chloride, sulfuryl chloride, cyanuric chloride and phosphorus trichloride at a temperature of 50.degree. C. to 130.degree. C. over a period of 1 to 5 hours and further reacting the resultant reaction mixture in the presence of a second catalyst which is a compound of the formula (RO).sub.3 P wherein R is an aliphatic or aromatic substituent, or a compound which is phosphoric acid, pyrophosphoric acid, phosphorous pentaoxide or phosphorous pentachloride as a second catalyst at a temperature of 50.degree. C. to 130.degree. C. over a period of 1 to 5 hours.
    • 制备如上所述的具有高分子量的聚酰胺酰亚胺树脂的方法,其中提高了诸如低耐热性和低熔融流动性的现有技术方法的主要问题。 通过在30℃下以0.5g / dl的浓度作为溶剂的二甲基乙酰胺溶液测定的特性粘度为0.4至1.50dl / g的聚酰胺酰亚胺树脂通过芳族三羧酸酐与芳族二胺 在N-甲基吡咯烷酮溶剂中,在50℃至130℃的温度下,在选自亚硫酰氯,对甲苯磺酰氯,磺酰氯,氰尿酰氯和三氯化磷的第一催化剂存在下,在 时间为1至5小时,并且在第二催化剂存在下进一步反应,所述第二催化剂是式(RO)3P的化合物,其中R是脂族或芳族取代基,或者是磷酸化合物,焦磷酸 ,五氧化二磷或五氯化磷作为第二催化剂,温度为50〜130℃,时间为1〜5小时。