[EN] HIGH HEAT MONOMERS AND METHODS OF USE THEREOF<br/>[FR] MONOMÈRES À CHALEUR ÉLEVÉE ET LEURS PROCÉDÉS D'UTILISATION
申请人:SABIC GLOBAL TECHNOLOGIES BV
公开号:WO2016014536A1
公开(公告)日:2016-01-28
High purity epoxide compounds, methods for preparing the high purity epoxide compounds, and compositions derived from the epoxide compounds are provided. Also provided are materials and articles derived from the epoxide compounds.
Material for liquid crystal aligning and liquid crystal displays made by using the same
申请人:Tsutsui Kimiaki
公开号:US20060051525A1
公开(公告)日:2006-03-09
To provide a liquid crystal aligning agent useful to obtain a liquid crystal alignment film which exhibits a high voltage retention characteristic even under high temperature conditions and which has a low accumulation charge, and a liquid crystal display device which is less susceptible to lowering of contrast or to image persistence.
A liquid crystal aligning agent comprising at least one selected from a polyamic acid obtained by reactive polymerization of a tetracarboxylic dianhydride component with a diamine component, and a polyimide obtained by cyclodehydration of the polyamic acid, characterized in that at least part of the tetracarboxylic dianhydride component is a tetracarboxylic dianhydride having an alicyclic structure or an aliphatic structure, and at least part of the diamine component is a diamine represented by the following formula (1):
(wherein two among R
1
to R
10
are primary amino groups, and the rest are hydrogen atoms or monovalent organic groups other than primary amino groups, provided that they may be the same or different from one another), and a liquid crystal display device having a liquid crystal alignment film obtained from this liquid crystal aligning agent.
Process for producing unsaturated dicarboxylic acid imide compound
申请人:MATSUSHITA ELECTRIC WORKS, LTD.
公开号:EP0387381A1
公开(公告)日:1990-09-19
A process for producing an unsaturated dicarboxylic acid imide compound of formula (I):
wherein D represents a divalent organic group having at least one carbon/carbon double bond; R¹ represents an n-valent organic group having at least one carbon atom; and n is an integer of 1 or above, which comprises reacting an unsaturated amide acid compound of formula (II):
wherein D, R¹, and n are as defined above, with an orthoester of formula (III):
R²-C⁅OR³]₃ (III)
wherein R² and R³, which may be the same or different, each represents a monovalent organic group having at least one carbon atom, to form an unsaturated dicarboxylic acid amide acid ester compound of formula (IV):
wherein D, R¹, R³, and n are as defined above, and then imidating the compound of formula (IV).
An ether imide of the formula:
wherein R1, R2, R3, R4, R5, R6 and D are as defined in the specification produced by reacting a diamine with an ethylenically unsaturated dicarboxylic acid can give a composition together with one or more unsaturated polyesters, epoxy compounds, amines, and the like to give shaped ar- ticies excellent in flexibility and heat resistance.
式中的醚酰亚胺
其中 R1、R2、R3、R4、R5、R6 和 D 如说明书中所定义,由二元胺与乙烯基不饱和二羧酸反应而制得,可与一种或多种不饱和聚酯、环氧化合物、胺等一起制成一种组合物,从而得到具有优异柔韧性和耐热性的成型材料。
Polyamide acid composition for preparing polyimide and process for preparing polyimide from the same
申请人:KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA
公开号:EP0083690A1
公开(公告)日:1983-07-20
A polyamide acid composition for preparing a polyimide which can extend the pot life of the composition comprising a solution of a polyamide acid in an organic solvent, the polyamide acid being a precursor of the polyimide, a dehydrating agent, a catalyst and a pot life extending agent which can lower a rate of conversion of the polyamide acid to the plyimide, and the process for preparing the polyimide from said polyamide acid composition. According to the present invention the pot life can be extremely extended to give the composition an enough flowability for a long time without reducing the excellent properties such as a heat resistance and an electric insulation of the obtained polyimide.